Keysight Technologies Performing LTE and LTE-Advanced RF Measurements with the E7515A UXM Wireless Test Set

Transcription

1 Keysight Technologies Performing LTE and LTE-Advanced RF Measurements with the E7515A UXM Wireless Test Set Based on 3GPP TS Application Note

2 02 Keysight Performing LTE and LTE-Advanced Measurements Application Note Contents 1 Introduction 2 LTE/LTE-Advanced RF Measurements with the UXM 3 Common Test Configurations 3.1 Environmental Conditions 3.2 Channel Bandwidths and Test Frequencies 3.3 Physical Connections 4 Transmitter Characteristics 4.1 Common Parameters for Transmitter Characteristics 4.2 Saving Common Parameters 4.3 Additional Test Conditions for Transmitter Characteristics 4.4 Example Test Procedure for UE Maximum Output Power (sc 6.2.2) 4.5 Example Test Procedure for Maximum Power Reduction (MPR) (sc 6.2.3) 4.6 Example Test Procedure for Additional Maximum Power Reduction (A-MPR) (sc 6.2.4) 4.7 Example Test Procedure for Configured UE Transmitted Power Output (sc 6.2.5) 4.8 Example Test Procedure for Minimum Output Power (sc 6.3.2) 4.9 Example Test Procedure for Transmit OFF Power (sc 6.3.3) 4.10 Example Test Procedure for General ON/OFF Time Mask (sc ) 4.11 Example Test Procedure for PRACH Time Mask (sc ) 4.12 Example Test Procedure for SRS Time Mask (sc ) 4.13 Example Test Procedure for Power Control Absolute Power Tolerance (sc ) 4.14 Example Test Procedure for Aggregate Power Control Tolerance (sc ) 4.15 Example Test Procedure for Frequency Error (sc 6.5.1) 4.16 Example Test Procedure for Error Vector Magnitude (sc ) 4.17 Example Test Procedure for PUSCH-EVM with Exclusion Period (sc A) 4.18 Example Test Procedure for Carrier Leakage (sc ) 4.19 Example Test Procedure for In-Band Emissions for Non-Allocated RB (sc ) 4.20 Example Test Procedure for EVM Equalizer Spectrum Flatness (sc ) 4.21 Example Test Procedure for Occupied Bandwidth (sc 6.6.1) 4.22 Example Test Procedure for Spectrum Emission Mask (sc ) 4.23 Example Test Procedure for Additional Spectrum Emission Mask (sc ) 4.24 Example Test Procedure for Adjacent Channel Leakage Power Ratio (sc ) 5 Receiver Characteristics without Carrier Aggregation 5.1 Overview of Receiver Characteristics without CA 5.2 Common Parameters for Receiver Characteristics without CA 5.3 Additional Test Conditions for Receiver Characteristics without CA 5.4 Example Test Procedure for Reference Sensitivity Level (c 7.3) 5.5 Example Test Procedure for Maximum Input Level (c 7.4) 5.6 Example Test Procedure for Adjacent Channel Selectivity (c 7.5) 5.7 Example Test Procedure for In-Band Blocking (sc 7.6.1)

3 03 Keysight Performing LTE and LTE-Advanced Measurements Application Note 6 Receiver Characteristics with Carrier Aggregation 6.1 Overview of Receiver Characteristics with DL CA 6.2 Common Parameters for Receiver Characteristics with DL CA 6.3 Additional Test Conditions for Receiver Characteristics with CA 6.4 Example Test Procedure. for Ref. Sens. Level for Interband DL CA w/o UL CA (sc 7.3A.3) 6.5 Example Test Procecure for Max. Input Level for Interband DL CA w/o UL CA (sc 7.4A.3) 7 References 8 Appendices 8.1 Test Channels for Transmitter and Receiver Characteristics 8.2 3GPP Measurement Configurations 8.3 Modulation and RB Allocation for Transmitter Characteristics without CA 8.4 Modulation and RB Allocation for Receiver Characteristics without CA 8.5 Troubleshooting RF Measurements

4 04 Keysight Performing LTE and LTE-Advanced Measurements Application Note 1 Introduction The third-generation partnership project (3GPP) defines standards for development and test of 3G and 4G system components. The technical specification (TS) defines requirements for radio frequency (RF) testing of long-term evolution (LTE) and LTE- Advanced (LTE-A) user equipment (UE). This application note provides example test procedures for RF testing of LTE and LTE-A UEs based on 3GPP TS V ( ). Many references are made to 3GPP TS in this application note. In most cases, these references are abbreviated as References to other 3GPP documents are abbreviated in a similar manner. 3GPP requires all tests to be performed over all E-UTRA bands supported by the UE. In some cases, there are band-specific setups and requirements. This application note provides example test procedures for frequency division duplex (FDD) E-UTRA Band 3. Additional bands can be tested following a similar set of steps. E-UTRA bands are defined in clause 5. 3GPP also requires all tests to be performed over the lowest and highest channel bandwidths supported in each band. In addition, all tests must be performed with a channel bandwidth of 5 MHz. There are bandwidth-specific setups and requirements as well. This application note provides example test procedures for a channel bandwidth of 20 MHz. Additional bandwidths can be tested following a similar set of steps. Channel bandwidths for each E-UTRA band are defined in clause 5. In this application note from Keysight Technologies, Inc. example procedures use the E7515A UXM wireless test set with E7630A LTE/LTE-A lab application (LA) software. The software version is , released on 30 September Unless otherwise indicated, E7530A LTE/LTE-A test application (TA) software can also be used with the example procedures. Visit the Keysight UXM web page for detailed product information and access to software downloads at 3GPP defines specific requirements for RF testing, but RF design verification often requires additional test configurations. Although this application note describes example procedures based on 3GPP tests, the UXM also supports testing using non-standards-based configurations with flexible RB allocation and modulation setup, many graphical measurement results and powerful measurement algorithms. The UXM provides the tools needed to be confident about a device s RF performance. These include flexible receiver test, trusted X-Series transmitter measurement science, and network emulation. This enables configuration of defined conditions with varying frequencies, power, and modulation, measurement to limits, and determination of the root-cause of failures with reliable, repeatable results that can be automated and easily shared. Test from early designs to finished products since the UXM supports both signaling and nonsignaling test, making it easy to just connect. Keysight also provides fully automated and independently validated conformance solutions that provide assured compliance to the latest version of 3GPP test specifications. Visit for more information.

5 05 Keysight Performing LTE and LTE-Advanced Measurements Application Note Throughout this application note, selections and entries on the UXM front panel are shown as follows. Cell > Config This represents clicking on or touching the Cell lower tab, and then clicking on or touching the Config upper tab to enable access to the desired parameter setting or result. Additionally, the words can represent actions using menu keys or active areas of the UXM front panel. Here is one example. Back > Back > Handover > Blind Handover This represents clicking on or touching the Back, Handover, and Blind Handover menu keys. The test system configuration may include significant losses due to cabling and use of splitters or couplers external to the UXM. Compensation for external cable losses are configured on the UXM Control Panel. Refer to the UXM User s and Programmer s Guide for a description of how to specify cable loss. (See Section 7 of this application note.) The LTE/LTE-A application controls whether cable loss compensation is enabled using the System > Config > Cable Loss Compensation setting. Note that this setting is non-volatile and is not affected by a preset.

6 06 Keysight Performing LTE and LTE-Advanced Measurements Application Note 2 LTE/LTE-A RF Measurements with the UXM The following tables describe the UXM s support for measurements in the transmitter and receiver characteristics sections of In addition, the Wireless Test Manager (WTM) family of products supports quick automation of many LTE and LTE-A RF measurements based on 3GPP specifications using the UXM. Visit for more information on WTM. Table 1. UXM and WTM Measurement Support for Transmitter Characteristics 3GPP TS Transmitter Characteristics 3GPP Release UXM WTM UE Maximum Output Power 8 Yes Yes Maximum Power Reduction (MPR) 8 Yes Yes Additional Maximum Power Reduction (A-MPR) 8 Yes Yes Configured UE transmitted Output Power 8 Yes Yes Minimum Output Power 8 Yes Yes General ON/OFF time mask 8 Yes Yes PRACH time mask 8 Yes Yes SRS time mask 8 Yes Yes Power Control Absolute power tolerance 8 Yes Yes Power Control Relative power tolerance 8 No No Aggregate power control tolerance 8 Yes Yes Frequency error 8 Yes Yes A PUSCH-EVM with exclusion period 9 Yes Yes Error Vector Magnitude (EVM) 8 Yes Yes Carrier leakage 8 Yes Yes In-band emissions for non allocated RB 8 Yes Yes EVM Equalizer spectrum flatness 8 Yes Yes Occupied bandwidth 8 Yes Yes Spectrum Emission Mask 8 Yes Yes Additional Spectrum Emission Mask 8 Yes Yes Adjacent Channel Leakage power Ratio 8 Yes Yes Transmitter Spurious emissions 8 Yes 2 No Spurious emission band UE co-existence 8 Yes 2 No Additional spurious emissions 8 Yes 2 No 6.7 Transmit intermodulation 8 Yes 2 No 1 Measurement of EVM on the PUSCH and PUCCH is supported, but not on the PRACH. 2 Requires an external signal generator (such as N5172B X-Series RF vector signal generator).

7 07 Performing LTE and LTE-Advanced Measurements Application Note Table 2. UXM and WTM Measurement Support for Receiver Characteristics 3GPP TS Receiver Characteristics 3GPP Release UXM WTM 7.3 Receiver Sensitivity Level 8 Yes Yes 7.3A.1 Receiver Sensitivity Level for CA (intraband contiguous DL CA and UL CA) 10 Coming soon 4 No 7.3A.2 Receiver Sensitivity Level for CA (intraband contiguous DL CA without UL CA) 10 Yes No 7.3A.3 Receiver Sensitivity Level for CA (interband DL CA without UL CA) 10 Yes Yes 7.4 Maximum Input Level 8 Yes Yes 7.4A.1 Maximum Input Level for CA (intraband contiguous DL CA and UL CA) 10 Coming soon 4 No 7.4A.2 Maximum Input Level for CA (intraband contiguous DL CA without UL CA) 10 Yes No 7.4A.3 Maximum Input Level for CA (interband DL CA without UL CA) 10 Yes Yes 7.5 Adjacent Channel Selectivity (ACS) 8 Yes Yes 7.5A.1 Adjacent Channel Selectivity (ACS) for CA (intraband contiguous DL CA and UL CA) 10 Coming soon 4 No 7.5A.2 Adjacent Channel Selectivity (ACS) for CA (intraband contiguous DL CA without UL CA) 10 Yes 3 No 7.5A.3 Adjacent Channel Selectivity (ACS) for CA (interband DL CA without UL CA) 10 Yes 3 No In-band blocking 8 Yes Yes 7.6.1A.1 In-band blocking for CA (intraband contiguous DL CA and UL CA) 10 Coming soon 4 No 7.6.1A.2 In-band blocking for CA (intraband contiguous DL CA without UL CA) 10 Yes 3 No 7.6.1A.3 In-band blocking for CA (interband DL CA without UL CA) 10 Yes No Out-of-band blocking 8 Yes 3 No 7.6.2A.1 Out-of-band blocking for CA (intraband contiguous DL CA and UL CA) 10 Coming soon 4 No 7.6.2A.2 Out-of-band blocking for CA (intraband contiguous DL CA without UL CA) 10 Yes 3 No 7.6.2A.3 Out-of-band blocking for CA (interband DL CA without UL CA) 10 Yes 3 No Narrow band blocking 8 Yes 3 No 7.6.3A.1 Narrow band blocking for CA (intraband contiguous DL CA and UL CA) 10 Coming soon 4 No 7.6.3A.2 Narrow band blocking for CA (intraband contiguous DL CA without UL CA) 10 Yes 3 No 7.6.3A.3 Narrow band blocking for CA (interband DL CA without UL CA) 10 Yes 3 No 7.7 Spurious response 8 Yes 3 No 7.7A.1 Spurious response for CA (intraband contiguous DL CA and UL CA) 10 Coming soon 4 No 7.7A.2 Spurious response for CA (intraband contiguous DL CA without UL CA) 10 Yes 3 No 7.7A.3 Spurious response for CA (interband DL CA without UL CA) 10 Yes 3 No Wide band Intermodulation 8 Yes 3 No 7.8.1A.1 Wide band Intermodulation for CA (intraband contiguous DL CA and UL CA) 10 Coming soon 4 No 7.8.1A.2 Wide band Intermodulation for CA (intraband contiguous DL CA without UL CA) 10 Yes 3 No 7.8.1A.3 Wide band Intermodulation for CA (interband DL CA without UL CA) 10 Yes 3 No 7.9 Spurious emissions 8 Yes 5 No 3 Requires an external signal generator (such as N5172B X-Series RF vector signal generator). 4 Ready for verification with a UE. 5 Requires an external signal analyzer (such as N9020A MXA signal analyzer).

8 08 Keysight Performing LTE and LTE-Advanced Measurements Application Note 3 Common Test Configurations clauses 6 and 7 describe RF measurements for transmitter and receiver characteristics, respectively. Some test parameters are defined for use with all of these measurements. 3.1 Environmental Conditions Each test requires measurement over a set of environmental conditions described by temperature and voltage. These conditions are defined in sub-clause 4.1. In this application note, the test environment always consists of normal conditions (NC): +15º C to +35º C with relative humidity up to 75% (see Table ). 3.2 Channel Bandwidths and Test Frequencies For 3GPP Rel-8 LTE Each UE supports a set of E-UTRA bands. Each E-UTRA band has a defined set of channel bandwidths (see Table ). Initial conditions are defined for each test including a set of channel bandwidths and a set of test frequencies. Most transmitter and receiver characteristics are tested at the lowest, 5 MHz and the highest channel bandwidths as supported by each E-UTRA band. Some E-UTRA bands also require testing at 10 MHz channel bandwidth. And most transmitter and receiver characteristics are tested at low-range, mid-range and high-range test frequencies. However, some tests only require measurement at a subset of these bandwidths and frequencies. Table 53 can be used to determine which E-UTRA DL and UL channels need to be tested for each E-UTRA band supported by the UE as required by the specific test. In this application note, E-UTRA Band 3 (FDD) is used to create an example test procedure for each test. A channel bandwidth of 20 MHz is used along with a mid-range test frequency. For Band 3, the specified test channels and bandwidths are shown in Table 3. Table 3. Test Channels for Band 3 DL E-UTRA Channels UL E-UTRA Channels E-UTRA Bandwidth (MHz) Band Low Mid High Low Mid High Low 5 MHz 10 MHz High The example test procedures use a channel bandwidth of 20 MHz and a mid-range test channel, thus 1575 in the downlink and in the uplink as shown in Table For 3GPP Rel-10 LTE with Carrier Aggregation When testing intra-band contiguous DL CA, low- and high-range test frequencies are used with the lowest and highest aggregated bandwidths for each CA configuration. Only the mid-range test frequency and highest aggregated bandwidth are used for testing each CA configuration with interband DL CA. When testing interband DL CA, the CA configuration is used to determine in which bands the PCC and SCC are generated. For example, the configuration CA_2A-17A specifies the PCC in Band 2 and the SCC in Band 17. However, testing must also be done using the reverse setup, with the PCC in Band 17 and the SCC in Band 2.

9 09 Keysight Performing LTE and LTE-Advanced Measurements Application Note With DL CA, interband tests are used as an example in this application note with the PCC in Band 3 and the SCC in Band 5. An aggregated channel bandwidth of 20 MHz is used with a 10 MHz channel bandwidth and mid-range test frequency for each component carrier. This represents E-UTRA CA Configuration CA_3A-5A with Bandwidth Combination Set 1 (see Table 5.4.2A.1-2). For E-UTRA CA Configuration CA_3A-5A with Bandwidth Combination Set 1, the specified test channels and CC combinations are shown in Table 4. Table 4. Test Channels for Interband CA_3A-5A with Bandwidth Combination Set 1 DL Channel UL Channel Bandwidth NRB_agg (MHz) CA Config. Band Mid Mid Combination Set Highest CA_3A-5A Bandwidth (MHz) Table 54 and Table 55 can be used to determine which E-UTRA DL and UL channels need to be tested for each E-UTRA CA configuration. 3.3 Physical Connections Most transmitter and receiver characteristics use the connection diagram in Figure A.3. With the UXM, this requires only two simple connections between the UE and the test equipment as shown in Figure 1. Figure 1. UXM Test Connections for Simple Tx and Rx Tests without CA ACS and in-band blocking receiver tests use the connection diagram in Figure A.4. The connections between the UE and the UXM for these tests are shown in Figure 2. Figure 2. UXM Test Connections for ACS and In-Band Blocking without CA

10 10 Keysight Performing LTE and LTE-Advanced Measurements Application Note Most transmitter and receiver characteristics with interband DL CA use the connection diagram in Figure A.32. With the UXM, the connections between the UE and the test equipment are simplified as both downlink CA cells are provided in one test set as shown in Figure 3. Figure 3. UXM Test Connections for Rx Tests with Interband DL CA

11 11 Keysight Performing LTE and LTE-Advanced Measurements Application Note 4 Transmitter Characteristics For simple transmitter characteristics tests that are part of 3GPP Rel-8, only one network cell is required. No MIMO is used and no power boosting is required. For transmitter characteristics designed to verify spectral emissions performance, additional network cells are required to emulate interfering signals. The transmitter characteristics require specific modulation and coding configurations in the uplink and sometimes in the downlink. These configurations vary depending on E-UTRA band and channel bandwidth. Table 56 through Table 64 can be used to quickly determine which E-UTRA bands, test frequencies, modulation and RB allocations need to be tested for each channel bandwidth. The configuration numbers in the first column of the tables are referenced in the example test procedures described in this application note. 4.1 Common Parameters for Transmitter Characteristics Initial parameter settings for all transmitter characteristics are described in sub-clause Initial conditions for DL signals are described in annexes A.3.2A, C.0, C.1, C.2 and C.3.0. For UL signals, initial conditions are described in annexes A.2, H.1 and H.3.0. Most of these initial values are set by default in the UXM. For example, the UXM s receiver is automatically configured to use the optimum range for the UE s expected signal level. The few parameters that must be modified to align with 3GPP requirements are shown in Table 5. These parameter value changes enable use of the example test procedures in this application note. Table 5. UXM Parameter Changes for Transmitter Characteristics UXM Parameter Changes from Desired Value UXM Default Value UXM Front Panel Navigation Default Values Full Preset Default Utility > Preset > Full Preset Cell2 Cell Power Off On Cell2 > Cell > Config Cell1 Band 3 1 Cell1 > Cell > Config Cell1 Downlink Bandwidth 20 MHz 10 MHz Cell1 > Cell > Config Cell1 Default Paging Cycle 128 Radio Frames 32 Radio Frames Cell1 > PHY > General Cell1 DSR Transmission Max 4 16 Cell1 > MAC/RLC/PDCP > General Cell1 Configuration Index 30 7 Cell1 > MAC/RLC/PDCP > General Cell1 DL Max Transmission 5 4 Cell1 > MAC/RLC/PDCP > HARQ Cell1 UL Max Transmission 1 4 Cell1 > MAC/RLC/PDCP > HARQ 4.2 Saving Common Parameters To save these parameter values for quicker setup, use a save register. Utility > Save If desired, create a new folder to save the register information. Create Folder Enter Folder Name. OK Highlight the folder where you would like to save the register file. Enter a File Name for the register. Save Register

12 12 Keysight Performing LTE and LTE-Advanced Measurements Application Note Figure 4. Save a Register The parameter values have now been saved. To use these values later, recall the register. Utility > Recall Highlight the Name of the register to recall. Recall Register Figure 5. Recall a Saved Register The UXM parameter values are modified to match those in the recalled register. See the UXM User s and Programmer s Guide for more details on using save and recall registers.

13 13 Keysight Performing LTE and LTE-Advanced Measurements Application Note 4.3 Additional Test Conditions for Transmitter Characteristics The example procedures in this section of the application note are useful to verify UE transmitter performance at one set of test conditions from However, measurement over additional test conditions is required. The following summarizes the recommended order, references and procedures for measurement of additional test conditions using the UXM. 1. To measure additional DL and/or UL modulation and allocation conditions, use the tables in each example test procedure to reconfigure the DL and/or UL scheduling using the Scheduling > Subframes Config tab. Then, repeat the example test procedure. The original connection established during the example test procedure is maintained. 2. To measure additional test channels (e.g., low and high) within the same band used in the example procedures, modify Downlink EARFCN using the Cell > Config tab as shown in Table 53 for the band used in the example procedure. Uplink EARFCN changes automatically once Downlink EARFCN is entered. Then, repeat the example test procedure. The original connection established during the example test procedure is maintained. 3. To measure additional bands supported by the UE, change the band using the Handover > Blind Handover > PCC Blind Handover menu keys. Remember to enter Cell ID and Downlink EARFCN as well as Frequency Band before starting the handover. Use Table 56 to determine which measurement configurations to test. Use Table 58 through Table 64 to determine the required test configurations for the UE. Then, modify the UE s DL and/or UL modulation and allocation using the Scheduling > Subframes Config tab and repeat the example test procedure. The original connection established during the example test procedure is maintained by using the handover. If needed, measure additional modulations, allocations and test channels for each band as described previously. 4. To measure additional channel bandwidths for each band supported by the UE, end the connection established during the example test procedure and establish a new one with the modified channel bandwidth. After deactivating Cell1 using the Deactivate Cell menu key, select Downlink Bandwidth using the Cell > Config tab. Uplink Bandwidth changes automatically once Downlink Bandwidth is selected. Remember to enter Band and Downlink EARFCN as well. Use Table 56 to determine which measurement configurations to test. Use Table 58 through Table 64 to determine the required test configurations for the UE. Then, modify the UE s DL and/or UL modulation and allocation using the Scheduling > Subframes Config tab and repeat the example test procedure. If needed, measure additional modulations, allocations, test channels and bands as described previously. 5. To measure TDD test configurations, end the FDD connection established during the example test procedure and establish a new one using TDD. After deactivating Cell1 using the Deactivate Cell menu key, select TDD for Duplex Mode using the Cell > Config tab. Remember to enter Band, Downlink EARFCN and Downlink Bandwidth as well. Refer to to determine the required TDD test conditions for the UE. Then, modify the UE s DL and/or UL modulation and allocation using the Scheduling > Subframes tab and repeat the example test procedure. If needed, measure additional modulations, allocations, test channels and bands as described previously.

14 14 Keysight Performing LTE and LTE-Advanced Measurements Application Note 4.4 Example Test Procedure for UE Maximum Output Power (sc 6.2.2) Description and Parameter Summary Maximum output power shall be performed for all E-UTRA UEs from 3GPP Rel-8 and forward. Maximum output power testing is performed to verify the UE s output power does not exceed the prescribed range. No downlink reference signal is used. The UE s output power is measured over at least one subframe (1 ms). A UE that cannot meet the requirements causes interference within a network or decreases the effective coverage area of a network. Test conditions specified are normal conditions (NC) along with low and high temperature (TL and TH) and low and high voltage (VL and VH) combinations. Low-, mid- and high-range test frequencies are used. These are specified for each band and channel bandwidth. Refer to Table 53 to find the test frequencies required for each band supported by the UE under test. The test is performed using the lowest and highest channel bandwidths defined in each band supported by the UE, and a 5 MHz channel bandwidth. The required test parameters including modulation type and RB allocation for the uplink vary depending on channel bandwidth and E-UTRA band. Refer to Table 59 through Table 64 for parameter values required for each channel bandwidth and band supported by the UE under test Parameters for Example Procedure This example procedure uses FDD E-UTRA Band 3 with a 20 MHz channel bandwidth. Test conditions are normal and mid-range test channels are used. The uplink test configurations use QPSK modulation. Table 6 shows the uplink test configurations used in the example procedure. These are configurations number 3, 5, and 6 from Table 64. Table 6. UE Maximum Output UL Test Configurations for Band 3 with 20 MHz Bandwidth FDD Uplink Configuration Ch BW Modulation RB Allocation RB Start Payload Size (bits) MCS (Imcs-Qm) 20 MHz QPSK QPSK 20 MHz QPSK QPSK 20 MHz QPSK QPSK Notes 2 and 3 of Table refer to Table where requirements and tolerances for UE Power Class 3 are defined. Since Band 3 is marked with Note 2 in Table , only Note 3 below Table applies. Even though Table lists two uplink RB allocations for a 20 MHz channel bandwidth with FDD, Note 3 below the table specifies that the 1 RB allocation shall be tested with the RB starting at zero and maximum for Band 3 (test channel bandwidth larger than 4 MHz). Note 3 also specifies that all RB allocations not equal to 1 shall be tested using a mid-range test frequency only with the RB starting at zero. The UE is signaled to transmit at maximum power during UE maximum output power testing. The connection diagram used for this example procedure with the UXM is shown in Figure 1.

15 15 Keysight Performing LTE and LTE-Advanced Measurements Application Note Test Steps for Example Procedure 1. Change the UXM parameters described in Table 5. Or, if you have saved this configuration, recall it. See Figure 5. These are the parameters common to all transmitter characteristics tests. 2. Configure the uplink reference signal. Cell1 > Scheduling > Subframes Config Check the box preceding Configure All Subframes at Once. Select 5-QPSK for Uplink MCS(Imcs-Qm) and enter 1 for RB of SF 0. All of the uplink subframes are automatically configured with these values. The uplink signal is now configured to match the first row of Table Connect the UE s Rx/Tx antenna to the UXM front panel port TxRx1/Rx1. Connect the UE s Rx (diversity) antenna to the UXM front panel port TxRx2/Rx2. The connections are now configured to match Figure Switch on Cell1. Cell1 > Activate Cell Wait for the Cell1 status to change to ON. Figure 6. Cell1 Activated 5. Switch on the UE and establish a connection. Switch on the UE and wait for Cell1 status to change to CONNECTED. Figure 7. UE Connected to Cell1 6. Tell the UE to start transmitting data to the UXM on the UL. Cell1 > Connect > Start UL MAC Padding An up arrow next to the cell tower as shown in Figure 8 signifies that UL MAC padding has started on Cell1. Figure 8. UL MAC Padding Started 7. Configure the power measurement. Back > Tx Measurements > Channel Power 8. Configure the UE s output power level using the menu key. Power Control Change UE Power Control Mode to All Up Bits.

16 16 Keysight Performing LTE and LTE-Advanced Measurements Application Note Figure 9. UE Power Control Selection of All Up Bits Back 9. Measure the UE s maximum output power. Channel power is shown in dbm/20 MHz as measured over 1 subframe. For a UE in Band 3, the power must be within 18.8 to 25.7 dbm/20 MHz to pass this test. UE maximum output power per power class is defined in Table Note 2 below the table allows additional tolerance on the lower limit when testing under these conditions in Band 3. So, for a UE in Band 3, this table specifies 23 dbm/20 MHz 2.7 db 1.5 db for the lower limit, and 23 dbm/20 MHz db for the upper limit. If the UE supports more than 4 E-UTRA operating bands, then Note 1 below Table indicates additional tolerance is allowed, but the value of the tolerance is not yet defined. Figure 10. UE Maximum Output Power Results

17 17 Keysight Performing LTE and LTE-Advanced Measurements Application Note 10. To repeat for additional test conditions, follow the steps in After all testing is complete, end the connection. Back > Back > Connect > Stop UL MAC Padding Switch off the UE. Back > Cell1 > Deactivate Cell 4.5 Example Test Procedure for Maximum Power Reduction (MPR) (sc 6.2.3) Description and Parameter Summary Maximum power reduction (MPR) test results are used when testing adjacent channel leakage power ratio as described in sub-clause Therefore, MPR results themselves are not required to meet 3GPP specifications, but MPR is still useful for the validation of RF designs in R&D. MPR testing applies to all E-UTRA UEs from 3GPP Rel-8 and forward. MPR testing is performed to verify the UE s power reduction is acceptable when larger RB allocations and/or higher-order modulation are used in the uplink. These conditions generate a larger crest factor and, therefore, require the UE s power amplifier to work harder to maintain maximum output power. No downlink reference signal is used. The UE s mean power is measured over at least one subframe (1 ms) while transmitting at maximum output power using partial and full RB allocations with QPSK and 16QAM. A UE whose power reduction from maximum is too large under these conditions causes interference with adjacent channels. Test conditions specified are normal conditions (NC) along with low and high temperature (TL and TH) and low and high voltage (VL and VH) combinations. Low-, mid- and high-range test frequencies are used. These are specified for each band and channel bandwidth. Refer to Table 53 to find the test frequencies required for each band supported by the UE under test. The test is performed using the lowest and highest channel bandwidths defined in each band supported by the UE, along with 5 MHz and 10 MHz channel bandwidths. The required test parameters including modulation type and RB allocation for the uplink vary depending on channel bandwidth and E-UTRA band. Refer to Table 59 through Table 64 for parameter values required for each channel bandwidth and band supported by the UE under test Parameters for Example Procedure This example procedure uses FDD E-UTRA Band 3 with a 20 MHz channel bandwidth. Test conditions are normal and mid-range test channels are used. The uplink test configurations use QPSK and 16QAM. Table 7 shows the uplink test configurations used in the example procedure. These are configuration numbers 9, 11, 16, 18, 19 and 20 from Table 64.

18 18 Keysight Performing LTE and LTE-Advanced Measurements Application Note Table 7. MPR UL Test Configurations for Band 3 with 20 MHz Bandwidth FDD Uplink Configuration Ch BW Modulation RB Allocation RB Start Payload Size (bits) MCS (Imcs-Qm) 20 MHz QPSK QPSK 20 MHz QPSK QPSK 20 MHz QPSK QPSK 20 MHz 16QAM QAM 20 MHz 16QAM QAM 20 MHz 16QAM QAM Note 2 below Table requires each partial RB allocation to be tested starting at zero and max + 1 RB allocation. For 20 MHz channel bandwidth, the partial RB allocation is 18. So, each test condition using RB allocation 18 (with QPSK or with 16QAM) must be tested twice, once with the RB allocation starting at 0 and once with the RB allocation starting at = 82. The 16QAM test condition using full RB allocation with 20 MHz channel bandwidth shall only be tested for UE categories 2, as stated in Note 3 below Table The UE is signaled to transmit at maximum power during UE MPR testing. The connection diagram used for this example procedure with the UXM is shown in Figure Test Steps for Example Procedure 1. Change the UXM parameters described in Table 5. Or, if you have saved this configuration, recall it. See Figure 5. These are the parameters common to all transmitter characteristics tests. 2. Configure the uplink reference signal. Cell1 > Scheduling > Subframes Config Check the box preceding Configure All Subframes at Once. Select 6-QPSK for Uplink MCS(Imcs-Qm) and enter 18 for RB of SF 0. All of the uplink subframes are automatically configured with these values. The uplink signal is now configured to match the first row of Table Connect the UE s Rx/Tx antenna to the UXM front panel port TxRx1/Rx1. Connect the UE s Rx (diversity) antenna to the UXM front panel port TxRx2/Rx2. The connections are now configured to match Figure Switch on Cell1. Cell1 > Activate Cell Wait for the Cell1 status to change to ON. See Figure Switch on the UE and establish a connection. Switch on the UE and wait for Cell1 status to change to CONNECTED. See Figure Tell the UE to start transmitting data to the UXM on the UL. Cell1 > Connect > Start UL MAC Padding An up arrow next to the cell tower as shown in Figure 8 signifies that UL MAC padding has started on Cell1. 7. Configure the power measurement. Back > Tx Measurements > Channel Power 8. Configure the UE s output power level using the menu key. Power Control Change UE Power Control Mode to All Up Bits. See Figure 9. Back

19 19 Keysight Performing LTE and LTE-Advanced Measurements Application Note 9. Measure the UE s MPR. Channel power is shown in dbm/20 MHz as measured over 1 subframe. For a UE in Band 3, the power must be within 18.8 to 25.7 dbm/20 MHz to pass this test. UE maximum output power per power class, RB allocation and modulation type are defined in Table Note 1 below the table allows additional tolerance on the lower limit when testing under these conditions in Band 3. So, for a UE in Band 3, this table specifies 23 dbm/20 MHz 2.7 db 1.5 db for the lower limit, and 23 dbm/20 MHz db for the upper limit. An additional db of tolerance in the lower limit is allowed for test conditions using full RB allocation with QPSK or partial RB allocation with 16QAM. Another db of tolerance in the lower limit is allowed (2 db additional) for test conditions using full RB allocation with 16QAM. Figure 11. MPR Results Whenever a transmitter characteristic test in clause 6 specifies test conditions with the UE maximum output power modified by MPR, the limits in Table are used. 10. To repeat for additional test conditions, follow the steps in After all testing is complete, end the connection. Back > Back > Connect > Stop UL MAC Padding Switch off the UE. Back > Cell1 > Deactivate Cell

20 20 Keysight Performing LTE and LTE-Advanced Measurements Application Note 4.6 Example Test Procedure for Additional Maximum Power Reduction (A-MPR) (sc 6.2.4) Description and Parameter Summary Additional maximum power reduction (A-MPR) test results are used when testing additional spurious emissions mask and additional spurious emissions as described in sub-clauses and , respectively. Therefore, A-MPR results themselves are not required to meet 3GPP specifications, but A-MPR is still useful for the validation of RF designs in R&D. A-MPR testing applies to all E-UTRA UEs from 3GPP Rel-8 and forward for which additional spurious testing using specific network-signaled values is required (see Table to determine which network-signaled values apply). Test configurations and requirements are based on E-UTRA bands supported by the UE. A-MPR testing is performed to verify the UE s maximum power performance in preparation for additional spurious emissions testing. No downlink reference signal is used. The UE s mean power is measured over at least one subframe (1 ms) while transmitting at maximum output power with QPSK and 16QAM. A UE, whose power reduction from maximum is too large under these conditions, causes excessive spurious emissions. Test conditions specified are only normal conditions (NC). Specific test frequencies are used as defined in sub-clause These are defined for each network-signaled value, E-UTRA band and channel bandwidth. When low, mid- or high-range test frequencies are required, refer to Table 53 to find the test frequencies required for each band supported by the UE under test. The test is performed using specific channel bandwidths defined for each network-signaled value based on the E-UTRA bands supported by the UE (see sub-clause ). The required test parameters including modulation type and RB allocation for the uplink vary depending on channel bandwidth, band and network-signaled value. Refer to sub-clause for parameter values required for each channel bandwidth and network-signaled value as needed for the UE under test Parameters for Example Procedure Most example procedures in this application note use E-UTRA Band 3. However, this band does not require A-MPR testing (see Table ). So, this example procedure uses FDD E-UTRA Band 13 with a 10 MHz channel bandwidth and a network-signaled value of NS_07 (see Table ). Test conditions are normal and mid-range test channels are used. The uplink test configurations use QPSK and 16QAM. Table 8 shows the uplink test configurations used in the example procedure. These configurations are defined in Table The 16QAM test condition using full RB allocation with 10 MHz channel bandwidth shall only be tested for UE categories 2 as stated in Note 2 below Table

21 21 Keysight Performing LTE and LTE-Advanced Measurements Application Note Table 8. A-MPR UL Test Configurations for Band 13 with 10 MHz Bandwidth FDD Uplink Configuration Config ID Ch BW Modulation RB Allocation RB Start Payload Size (bits) MCS (Imcs-Qm) 1 10 MHz QPSK QPSK 2 10 MHz QPSK QPSK 3 10 MHz QPSK QPSK 4 10 MHz QPSK QSPK 5 10 MHz QPSK QPSK 6 10 MHz 16QAM QAM 7 10 MHz QPSK QPSK 8 10 MHz QPSK QPSK 9 10 MHz 16QAM QAM MHz QPSK QPSK MHz 16QAM QAM MHz QPSK QPSK MHz QPSK QPSK MHz QPSK QPSK MHz QPSK QPSK MHz 16QAM QAM The UE is signaled to transmit at maximum power during A-MPR testing. The connection diagram used for this example procedure with the UXM is shown in Figure Test Steps for Example Procedure 1. Change the UXM parameters described in Table 5. Or, if you have saved this configuration, recall it. See Figure 5. These are the parameters common to all transmitter characteristics tests. 2. Configure the E-UTRA band and bandwidth. Cell1 > Cell > Config Enter 13 for Band. Select 10 MHz for Downlink Bandwidth. The Uplink Bandwidth and EARFCN values are automatically configured to 10 MHz and mid-range channels. 3. Configure the network-signaled value. Cell1 > Power Control > UE Power Control Enter 7 for Spectrum Emission. This configuration sends NS_07 on SIB2 to the UE during connection setup as required for this test configuration. 4. Configure the uplink reference signal. Cell1 > Scheduling > Subframes Config Check the box preceding Configure All Subframes at Once. Select 6-QPSK for Uplink MCS(Imcs-Qm) and enter 12 for RB of SF 0. All of the uplink subframes are automatically configured with these values. The uplink signal is now configured to match Config ID 15 in Table Connect the UE s Rx/Tx antenna to the UXM front panel port TxRx1/Rx1. Connect the UE s Rx (diversity) antenna to the UXM front panel port TxRx2/Rx2. The connections are now configured to match Figure Switch on Cell1. Cell1 > Activate Cell Wait for the Cell1 status to change to ON. See Figure Switch on the UE and establish a connection. Switch on the UE and wait for Cell1 status to change to CONNECTED. See Figure 7.

22 22 Keysight Performing LTE and LTE-Advanced Measurements Application Note 8. Tell the UE to start transmitting data to the UXM on the UL. Cell1 > Connect > Start UL MAC Padding An up arrow next to the cell tower as shown in Figure 8 signifies that UL MAC padding has started on Cell1. 9. Configure the power measurement. Back > Tx Measurements > Channel Power 10. Configure the UE s output power level using the menu key. Power Control Change UE Power Control Mode to All Up Bits. See Figure 9. Back 11. Measure the UE s A-MPR. Channel power is shown in dbm/10 MHz as measured over 1 subframe. For a UE in Band 13, using NS_07 and Config ID 15, the power must be within 4.3 to 25.7 dbm/ 10 MHz to pass this test (see Table ). Figure 12. A-MPR Results 12. To repeat for additional test conditions, follow the steps in After all testing is complete, end the connection. Back > Back > Connect > Stop UL MAC Padding Switch off the UE. Back > Cell1 > Deactivate Cell

23 23 Keysight Performing LTE and LTE-Advanced Measurements Application Note 4.7 Example Test Procedure for Configured UE Transmitted Output Power (sc 6.2.5) Description and Parameter Summary Configured UE transmitted output power shall be performed for all E-UTRA UEs from 3GPP Rel-8 and forward. Configured UE transmitted output power testing is performed to verify the UE s output power level does not exceed its UL Tx power as signaled by E-UTRAN or the maximum allowed UE power, whichever is lowest. No downlink reference signal is used. The UE s mean output power is measured over at least one subframe (1 ms). A UE that cannot meet the requirements decreases the effective coverage area of a network. Test conditions specified are normal conditions (NC) along with low and high temperature (TL and TH) and low and high voltage (VL and VH) combinations. Only mid-range test frequencies are used. These are specified for each band and channel bandwidth. Refer to Table 53 to find the test frequencies required for each band supported by the UE under test. The test is performed using the lowest and highest channel bandwidths defined in each band supported by the UE, and a 5 MHz channel bandwidth. The required test parameters including modulation type and RB allocation for the uplink vary depending on channel bandwidth and E-UTRA band. Refer to Table 59 through Table 64 for parameter values required for each channel bandwidth and band supported by the UE under test Parameters for Example Procedure This example procedure uses FDD E-UTRA Band 3 with a 20 MHz channel bandwidth. Test conditions are normal and mid-range test channels are used. The uplink test configuration uses QPSK modulation. Table 9 shows the uplink test configuration used in the example procedure. This is configuration number 6 from Table 64. Table 9. Configured UE Transmitted Output Power UL Test Configuration for Band 3 with 20 MHz Bandwidth FDD Uplink Configuration Ch BW Modulation RB Allocation RB Start Payload Size (bits) MCS (Imcs-Qm) 20 MHz QPSK QPSK Note 2 below Table requires the RB allocation to start at 0. The UE is signaled via uplink power control commands to transmit at maximum power during configured UE transmitted output power testing. The connection diagram used for this example procedure with the UXM is shown in Figure 1.

24 24 Keysight Performing LTE and LTE-Advanced Measurements Application Note Test Steps for Example Procedure 1. Change the UXM parameters described in Table 5. Or, if you have saved this configuration, recall it. See Figure 5. These are the parameters common to all transmitter characteristics tests. 2. Configure the uplink reference signal. Cell1 > Scheduling > Subframes Config Check the box preceding Configure All Subframes at Once. Select 6-QPSK for Uplink MCS(Imcs-Qm) and enter 18 for RB of SF 0. All of the uplink subframes are automatically configured with these values. The uplink signal is now configured to match Table Configure the maximum output power signaled to the UE on SIB1. Cell1 > Power Control > UE Power Control Check the box preceding p-max. Enter -10 for the initial p-max value sub-clause requires two additional p-max values to be tested: 10 and Connect the UE s Rx/Tx antenna to the UXM front panel port TxRx1/Rx1. Connect the UE s Rx (diversity) antenna to the UXM front panel port TxRx2/Rx2. The connections are now configured to match Figure Switch on Cell1. Cell1 > Activate Cell Wait for the Cell1 status to change to ON. See Figure Switch on the UE and establish a connection. Switch on the UE and wait for Cell1 status to change to CONNECTED. See Figure Tell the UE to start transmitting data to the UXM on the UL. Cell1 > Connect > Start UL MAC Padding An up arrow next to the cell tower as shown in Figure 8 signifies that UL MAC padding has started on Cell1. 8. Configure the power measurement. Back > Tx Measurements > Channel Power 9. Configure the UE s output power level using the menu key. Power Control Change UE Power Control Mode to All Up Bits. See Figure 9. Back 10. Measure the UE s configured UE transmitted output power. Channel power is shown in dbm/20 MHz as measured over 1 subframe. For a UE in Band 3 using 20 MHz channel bandwidth, the power at test point 1 must be within to -2.3 dbm/20 MHz to pass this test (see Table ). For test point 2 (p-max 10) in Band 3 using 20 MHz channel bandwidth, the UE s measured power must be within 1.8 to 16.7 dbm/20 MHz to pass this test (see Table ). For test point 3 (p-max 15) in Band 3 using 20 MHz channel bandwidth, the UE s measured power must be within 7.8 to 20.7 dbm/20 MHz to pass this test (see Table ). The lower limits of the ranges listed in Table have been extended by 1.5 db as required by the Note at the bottom of the table (see Note 2 in Table which applies to these test conditions).

25 25 Keysight Performing LTE and LTE-Advanced Measurements Application Note Figure 13. Configured UE Transmitted Output Power Results for Test Point 1 To repeat for additional p-max values, end the connection. Back > Back > Connect > Stop UL MAC Padding Switch off the UE. Back > Cell1 > Deactivate Cell Repeat steps 3 to 7 and To repeat for additional test conditions, follow the steps in After all testing is complete, end the connection. Back > Back > Connect > Stop UL MAC Padding Switch off the UE. Back > Cell1 > Deactivate Cell 4.8 Example Test Procedure for Minimum Output Power (sc 6.3.2) Description and Parameter Summary Minimum output power shall be performed for all E-UTRA UEs from 3GPP Rel-8 and forward. Minimum output power testing is performed to verify the UE s broadband output power level when set to its minimum value. No downlink reference signal is used. The UE s broadband output power is measured over at least one subframe (1 ms) in a measurement bandwidth slightly less than the channel bandwidth. A UE that cannot meet the requirements decreases the effective coverage area of a network. Test conditions specified are normal conditions (NC) along with low and high temperature (TL and TH) and low and high voltage (VL and VH) combinations. Low-, mid- and high-range test frequencies are used. These are specified for each band and channel bandwidth. Refer to Table 53 to find the test frequencies required for each band supported by the UE under test. The test is performed using the lowest and highest channel bandwidths defined in each band supported by the UE, and a 5 MHz channel bandwidth. The required test parameters including modulation type and RB allocation for the uplink vary depending on channel bandwidth and E-UTRA band. Refer to Table 59 through Table 64 for parameter values required for each channel bandwidth and band supported by the UE under test.

26 26 Keysight Performing LTE and LTE-Advanced Measurements Application Note Parameters for Example Procedure This example procedure uses FDD E-UTRA Band 3 with a 20 MHz channel bandwidth. Test conditions are normal and mid-range test channels are used. The uplink test configuration uses QPSK modulation. Table 10 shows the uplink test configuration used in the example procedure. This is configuration number 16 from Table 64. Table 10. Minimum Output Power UL Test Configuration for Band 3 with 20 MHz Bandwidth FDD Uplink Configuration Ch BW Modulation RB Allocation RB Start Payload Size (bits) MCS (Imcs-Qm) 20 MHz QPSK QPSK The UE is signaled to transmit at minimum power during minimum output power testing. The connection diagram used for this example procedure with the UXM is shown in Figure Test Steps for Example Procedure 1. Change the UXM parameters described in Table 5. Or, if you have saved this configuration, recall it. See Figure 5. These are the parameters common to all transmitter characteristics tests. 2. Configure the uplink reference signal. Cell1 > Scheduling > Subframes Config Check the box preceding Configure All Subframes at Once. Select 2-QPSK for Uplink MCS(Imcs-Qm) of SF 0. All of the uplink subframes are automatically configured with these values. The uplink signal is now configured to match Table Connect the UE s Rx/Tx antenna to the UXM front panel port TxRx1/Rx1. Connect the UE s Rx (diversity) antenna to the UXM front panel port TxRx2/Rx2. The connections are now configured to match Figure Switch on Cell1. Cell1 > Activate Cell Wait for the Cell1 status to change to ON. See Figure Switch on the UE and establish a connection. Switch on the UE and wait for Cell1 status to change to CONNECTED. See Figure Tell the UE to start transmitting data to the UXM on the UL. Cell1 > Connect > Start UL MAC Padding An up arrow next to the cell tower as shown in Figure 8 signifies that UL MAC padding has started on Cell1. 7. Configure the power measurement. Back > Tx Measurements > Channel Power 8. Configure the UE s output power level using the menu key. Power Control Change UE Power Control Mode to All Down Bits.

27 27 Keysight Performing LTE and LTE-Advanced Measurements Application Note Figure 14. UE Power Control Selection of All Down Bits Back 9. Measure the UE s minimum output power. Channel power is shown in dbm/20 MHz as measured over 1 subframe in an 18 MHz measurement bandwidth. For a UE in Band 3, the power must be -39 dbm/20 MHz (see Table ). Figure 15. Minimum Output Power Results 10. To repeat for additional test conditions, follow the steps in After all testing is complete, end the connection. Back > Back > Connect > Stop UL MAC Padding Switch off the UE. Back > Cell1 > Deactivate Cell

28 28 Keysight Performing LTE and LTE-Advanced Measurements Application Note 4.9 Example Test Procedure for Transmit OFF Power (sc 6.3.3) Description and Parameter Summary Transmit off power is measured when testing general on/off time mask and PRACH and SRS time mask as described in sub-clauses and , respectively. Therefore, transmit off power results themselves are not required to meet 3GPP specifications, but measurement of transmit off power is still useful for the validation of RF designs in R&D. Transmit off power shall be performed for all E-UTRA UEs from 3GPP Rel-8 and forward. Transmit off power testing is performed to verify the UE s mean power level when its transmitter is off. The UE s mean power is measured over at least one subframe (1 ms) in a measurement bandwidth slightly less than the channel bandwidth. A UE that cannot meet the requirements decreases the effective coverage area of a network. See the example test procedures in sections 4.10, 4.11 and 4.12 for measurement of the UE s transmit off power Example Test Procedure for General ON/OFF Time Mask (sc ) Description and Parameter Summary General on/off time mask shall be tested for all E-UTRA UEs from 3GPP Rel-8 and forward. General on/off time mask testing is performed to verify the performance of the UE s output power before and after transitions between transmit off power and transmit on power. No downlink reference measurement channel is used. The UE transmits only during subframe 2 of every frame. The UE s transmit off power is measured twice (in the subframes directly before and after subframe 2) and the UE s transmit on power is measured during subframe 2 (see Figure ). The UE s output power is measured over one subframe (1 ms) excluding a 20 μs transient period at the beginning of the subframe. A UE that cannot meet the requirements has an increased probability of uplink transmission errors and causes interference on other channels. Test conditions specified are normal conditions (NC) along with low and high temperature (TL and TH) and low and high voltage (VL and VH) combinations. Low-, mid- and high-range test frequencies are used. These are specified for each band and channel bandwidth. Refer to Table 53 to find the test frequencies required for each band supported by the UE under test. The test is performed using the lowest and highest channel bandwidths defined in each band supported by the UE, and a 5 MHz channel bandwidth. The required test parameters including modulation type and RB allocation for the uplink vary depending on channel bandwidth and E-UTRA band. Refer to Table 58 through Table 64 for parameter values required for each channel bandwidth and band supported by the UE under test.

29 29 Keysight Performing LTE and LTE-Advanced Measurements Application Note Parameters for Example Procedure This example procedure uses FDD E-UTRA Band 3 with a 20 MHz channel bandwidth. Test conditions are normal and mid-range test channels are used. The uplink test configuration uses QPSK modulation. Table 11 shows the uplink test configuration used in the example procedure. This is configuration number 16 from Table 64. Table 11. General On/Off Time Mask UL Test Configuration for Band 3 with 20 MHz Bandwidth FDD Uplink Configuration Ch BW Modulation RB Allocation RB Start Payload Size (bits) MCS (Imcs-Qm) 20 MHz QPSK QPSK The connection diagram used for this example procedure with the UXM is shown in Figure Test Steps for Example Procedure 1. Change the UXM parameters described in Table 5. Or, if you have saved this configuration, recall it. See Figure 5. These are the parameters common to all transmitter characteristics tests. 2. Configure the UXM to measure low input signals. Cell1 > System > RF Config Select Manual for Expected Input Power. 3. Configure the uplink reference signal. Cell1 > Scheduling > Subframes Config Check the box preceding Configure All Subframes at Once. Uncheck UL SF Alloc of SF 0. This switches off all of the uplink subframes. Uncheck the box preceding Configure All Subframes at Once. Select 2-QPSK for Uplink MCS(Imcs-Qm) and check UL SF Alloc of SF 2. The uplink signal is now configured to match Table 11 and to transmit only on subframe Configure the UE s initial power (transmit off power). Cell1 > Power Control > UE Power Control Enter -105 dbm for P0 (Nominal PUSCH). This matches the requirement in Table Connect the UE s Rx/Tx antenna to the UXM front panel port TxRx1/Rx1. Connect the UE s Rx (diversity) antenna to the UXM front panel port TxRx2/Rx2. The connections are now configured to match Figure Switch on Cell1. Cell1 > Activate Cell Wait for the Cell1 status to change to ON. See Figure Switch on the UE and establish a connection. Switch on the UE and wait for Cell1 status to change to CONNECTED. See Figure Tell the UE to start transmitting data to the UXM on the uplink. Cell1 > Connect > Start UL MAC Padding An up arrow next to the cell tower as shown in Figure 8 signifies that UL MAC padding has started on Cell1. 9. Configure the general on/off time mask measurement. Cell1 > Back > Tx Measurements > Transmit On/Off Power A graph of the UE s transmit power is shown. Below the graph, textual results of On Power, Off Power Before and Off Power After are provided. The UE s transmit on power must be within the range and 4.9 dbm/20 MHz as defined in Table The UE s two transmit off power results must be dbm/20 MHz as defined in Table A pass/fail indication is also provided above the graph. This indication applies only to the transmit off power results.

30 30 Keysight Performing LTE and LTE-Advanced Measurements Application Note Figure 16 shows example results for measurement of the general ON/OFF time mask. Figure 16. General On/Off Time Mask Results Several additional textual results are provided to better understand the UE s performance. Ramp Up, Ramp Down and Burst Width for both transmit on and off power levels provide more information about the UE s timing. Max Power, Min Power and Avg Pwr (for transmit off) provide more information about the UE s transmit power. 10. To repeat for additional test conditions, follow the steps in After all testing is complete, end the connection. Back > Back > Connect > Stop UL MAC Padding Switch off the UE. Back > Cell1 > Deactivate Cell 4.11 Example Test Procedure for PRACH Time Mask (sc ) Description and Parameter Summary PRACH time mask shall be tested for all E-UTRA UEs from 3GPP Rel-8 and forward. PRACH time mask testing is performed to verify the UE s OFF and ON power levels when transmitting a PRACH. No downlink or uplink reference measurement channels are used. The UE s OFF power is measured twice (before and after the PRACH preamble) and the UE s ON power is measured during the PRACH preamble (see Figure ). The UE s mean PRACH ON power is measured over specific periods depending on the PRACH preamble being tested (see Table ). A UE that cannot meet the requirements has an increased probability of uplink transmission errors and causes interference on other channels. Test conditions specified are normal conditions (NC) along with low and high temperature (TL and TH) and low and high voltage (VL and VH) combinations. Only mid-range test frequencies are used. These are specified for each band and channel bandwidth. Refer to Table 53 to find the test frequencies required for each band supported by the UE under test. The test is performed using the lowest and highest channel bandwidths defined in each band supported by the UE, and a 5 MHz channel bandwidth.

31 31 Keysight Performing LTE and LTE-Advanced Measurements Application Note Parameters for Example Procedure This example procedure uses FDD E-UTRA Band 3 with a 20 MHz channel bandwidth. Test conditions are normal and mid-range test channels are used. Since only the UE s PRACH is measured, no downlink or uplink reference signals are used. When the UE attempts to connect to the UXM, its PRACH preambles are measured Test Steps for Example Procedure 1. Change the UXM parameters described in Table 5. Or, if you have saved this configuration, recall it. See Figure 5. These are the parameters common to all transmitter characteristics tests. 2. Configure the UXM to measure low input signals. Cell1 > System > RF Config Select Manual for Expected Input Power. 3. Configure the UE s PRACH. Cell1 > MAC/RLC/PDCP > General Select 0 db for Power Ramp Step. This matches the requirement in Table Connect the UE s Rx/Tx antenna to the UXM front panel port TxRx1/Rx1. Connect the UE s Rx (diversity) antenna to the UXM front panel port TxRx2/Rx2. The connections are now configured to match Figure Switch on Cell1. Back > Cell1 > Activate Cell Wait for the Cell1 status to change to ON. See Figure Configure the PRACH time mask measurement. Cell1 > Tx Measurements > Transmit On/Off Power Use the application switch tool to switch between the LTE/LTE-A application and the X-Series measurement application. Press the down arrow at the top of the screen as shown in Figure 17. Figure 17. Application Switch Tool Access In the X-Series measurement application, perform the following actions. SA Mode Setup > Predefined Parameters > Measure PRACH/SRS > Preamble 0 Trigger > Prot Chan Detection Single Restart Figure 18. X-Series Measurement Application Configuration

32 32 Keysight Performing LTE and LTE-Advanced Measurements Application Note Use the application switch tool to return to the LTE/LTE-A application. Do not press the Re-Sync with BSE button Table requires measurement of all PRACH preamble formats. For FDD, PRACH preamble formats 1, 2 and 3 must be measured in addition to PRACH preamble format Switch on the UE. The UE sends a PRACH preamble to attempt to establish a connection with the UXM. A graph of the UE s PRACH preamble is shown. Below the graph, textual results of On Power, Off Power Before and Off Power After are provided. The UE s PRACH on power must be within the range -8.5 and 6.5 dbm/20 MHz. The UE s two PRACH off power results must be dbm/20 MHz. These requirements are defined in Table for these test conditions. A pass/fail indication is also provided above the graph. This indication is applies only to the PRACH off power results. Figure 19 shows example results for measurement of PRACH time mask using preamble format 0. Figure 19. PRACH Time Mask Results 8. To repeat for other PRACH preamble formats, switch off the UE. Then repeat steps 6 and 7 using the other required PRACH preamble formats. 9. To repeat for additional test conditions, follow the steps in After all testing is complete, end the connection. Switch off the UE. Back > Back > Cell1 > Deactivate Cell

33 33 Keysight Performing LTE and LTE-Advanced Measurements Application Note 4.12 Example Test Procedure for SRS Time Mask (sc ) Description and Parameter Summary SRS time mask shall be tested for all E-UTRA UEs from 3GPP Rel-8 and forward. SRS time mask testing is performed to verify the UE s off and on power levels when transmitting the sounding reference signal (SRS). No downlink or uplink reference measurement channels are used. The UE s off power is measured twice (before and after the SRS) and the UE s on power is measured during the SRS burst (see Figure ). The UE s on power is measured over the SRS burst excluding transient periods. A UE that cannot meet the requirements has an increased probability of uplink transmission errors and causes interference on other channels. Test conditions specified are normal conditions (NC) along with low and high temperature (TL and TH) and low and high voltage (VL and VH) combinations. Only mid-range test frequencies are used. These are specified for each band and channel bandwidth. Refer to Table 53 to find the test frequencies required for each band supported by the UE under test. The test is performed using the lowest and highest channel bandwidths defined in each band supported by the UE, and a 5 MHz channel bandwidth Parameters for Example Procedure This example procedure uses FDD E-UTRA Band 3 with a 20 MHz channel bandwidth. Test conditions are normal and mid-range test channels are used. Since only the UE s SRS is measured, no downlink or uplink reference signals are used. When the UE first connects to the UXM, its SRS is measured Test Steps for Example Procedure 1. Change the UXM parameters described in Table 5. Or, if you have saved this configuration, recall it. See Figure 5. These are the parameters common to all transmitter characteristics tests. 2. Configure the UXM to measure SRS. Cell1 > PHY > General Enter 0 for Cyclic Shift. Cell1 > RRC/NAS > Meas Config Select Periodic for SRS Configuration. Cell1 > System > RF Config Select Manual for Expected Input Power. The UXM is now configured to measure the UE s SRS. 3. Connect the UE s Rx/Tx antenna to the UXM front panel port TxRx1/Rx1. Connect the UE s Rx (diversity) antenna to the UXM front panel port TxRx2/Rx2. The connections are now configured to match Figure Switch on Cell1. Cell1 > Activate Cell Wait for the Cell1 status to change to ON. See Figure Configure the SRS time mask measurement. Cell1 > Tx Measurements > Transmit On/Off Power Use the application switch tool to switch between the LTE/LTE-A application and the X-Series measurement application. See Figure 17.

34 34 Keysight Performing LTE and LTE-Advanced Measurements Application Note In the X-Series measurement application, perform the following actions. See Figure 18. SA Mode Setup > Predefined Parameters > Measure PRACH/SRS > SRS Analysis Slot > TS1 Single Restart Use the application switch tool to return to the LTE/LTE-A application. Do not press the Re-Sync with BSE button. 6. Switch on the UE and establish a connection. Switch on the UE and wait for Cell1 status to change to CONNECTED. See Figure 7. A graph of the UE s SRS is shown. Below the graph, textual results of On Power, Off Power Before and Off Power After are provided. The UE s SRS on power must be within the range and 4.9 dbm/20 MHz. The UE s two SRS off power results must be dbm/20 MHz. These requirements are defined in Table for these test conditions. A pass/fail indication is also provided above the graph. This indication applies only to the SRS off power results. Figure 20 shows example results for measurement of SRS time mask. Figure 20. SRS Time Mask Results 7. To repeat for additional test conditions, follow the steps in After all testing is complete, end the connection. Switch off the UE. Back > Back > Cell1 > Deactivate Cell

35 35 Keysight Performing LTE and LTE-Advanced Measurements Application Note 4.13 Example Test Procedure for Power Control Absolute Power Tolerance (sc ) Description and Parameter Summary Power control absolute power tolerance shall be tested for all E-UTRA UEs from 3GPP Rel-8 and forward. Power control absolute power tolerance testing is performed to verify the UE s initial transmit power level accuracy at the start of a transmission. No downlink reference measurement channel is used. The UE s transmit power for its first UE PUSCH subframe is measured over one subframe (1 ms) excluding 20 μs transient periods. A UE that cannot meet the requirements causes interference on other channels. Test conditions specified are normal conditions (NC) along with low and high temperature (TL and TH) and low and high voltage (VL and VH) combinations. Only mid-range test frequencies are used. These are specified for each band and channel bandwidth. Refer to Table 53 to find the test frequencies required for each band supported by the UE under test. The test is performed using the lowest and highest channel bandwidths defined in each band supported by the UE, and a 5 MHz channel bandwidth. The required test parameters including modulation type and RB allocation for the uplink vary depending on channel bandwidth and E-UTRA band. Refer to Table 58 through Table 64 in for parameter values required for each channel bandwidth and band supported by the UE under test Parameters for Example Procedure This example procedure uses FDD E-UTRA Band 3 with a 20 MHz channel bandwidth. Test conditions are normal and mid-range test channels are used. The uplink test configuration uses QPSK modulation. Table 12 shows the uplink test configuration used in the example procedure. This is configuration number 16 from Table 64. Table 12. Power Control Absolute Power Tolerance UL Test Configuration for Band 3 with 20 MHz Bandwidth FDD Uplink Configuration Ch BW Modulation RB Allocation RB Start Payload Size (bits) MCS (Imcs-Qm) 20 MHz QPSK QPSK Power control absolute power tolerance is tested at three PUSCH power levels (see Tables and -2). The connection diagram used for this example procedure with the UXM is shown in Figure Test Steps for Example Procedure 1. Change the UXM parameters described in Table 5. Or, if you have saved this configuration, recall it. See Figure 5. These are the parameters common to all transmitter characteristics tests. 2. Configure the uplink reference signal. Cell1 > Scheduling > Subframes Config Check the box preceding Configure All Subframes at Once. Select 2-QPSK for Uplink MCS(Imcs-Qm) of SF 0. All of the uplink subframes are automatically configured with this value. The uplink signal is now configured to match Table Configure the UXM to measure low input signals. Cell1 > System > RF Config Select Manual for Expected Input Power.

36 36 Keysight Performing LTE and LTE-Advanced Measurements Application Note 4. Configure the UE s initial transmit power. Cell1 > Power Control > UE Power Control Enter -105 dbm for P0 (Nominal PUSCH). The UE is now configured to transmit at a relatively low initial power as required in Table This is test point 1. Power control absolute power tolerance must also be tested at test point 2, when P0 (Nominal PUSCH) is set to -93 dbm. This is a relatively high initial power. 5. Connect the UE s Rx/Tx antenna to the UXM front panel port TxRx1/Rx1. Connect the UE s Rx (diversity) antenna to the UXM front panel port TxRx2/Rx2. The connections are now configured to match Figure Switch on Cell1. Cell1 > Activate Cell Wait for the Cell1 status to change to ON. See Figure Configure the power control absolute power tolerance measurement. Cell1 > Tx Measurements > Transmit On/Off Power Use the application switch tool to switch between the LTE/LTE-A application and the X-Series measurement application. See Figure 17. In the X-Series measurement application, perform the following actions. See Figure 18. Trigger > Prot Chan Detection Single Restart Use the application switch tool to return to the LTE/LTE-A application. Do not press the Re-Sync with BSE button. 8. Switch on the UE and establish a connection. Switch on the UE and wait for Cell1 status to change to CONNECTED. See Figure 7. A graph of the UE s initial PUSCH transmit power is shown. Below the graph, the textual result of On Power is provided. The UE s initial PUSCH transmit power must be within the range and 7.4 dbm/20 MHz for test point 1 as defined in Table For test point 2, the UE s transmit on power result must be within the range -0.6 and 19.4 dbm/20 MHz as defined in Table A pass/fail indication is also provided above the graph, but this does not apply to the On Power result. Figure 21 shows example results for power control absolute power tolerance at test point 1. Figure 21. Power Control Absolute Power Tolerance Results

37 37 Keysight Performing LTE and LTE-Advanced Measurements Application Note 9. To repeat for test point 2, end the connection and reconfigure the UE s initial transmit power. Switch off the UE. Back > Back > Deactivate Cell Repeat steps 3 and 6 through To repeat for additional test conditions, follow the steps in After all testing is complete, end the connection. Switch off the UE. Back > Back > Cell1 > Deactivate Cell 4.14 Example Test Procedure for Aggregate Power Control Tolerance (sc ) Description and Parameter Summary Aggregate power control tolerance shall be tested for all E-UTRA UEs from 3GPP Rel-8 and forward. Aggregate power control tolerance testing is performed to verify the UE s ability to maintain its output power level during a non-contiguous transmission. Aggregate power control tolerance is measured on both the PUSCH and PUCCH. The UE transmits PUSCH or PUCCH in a continuous pattern of one subframe on and four subframes off. Downlink and uplink reference signals are used depending on the UL channel being measured. The UE s output power is measured during 5 consecutive transmissions over one subframe (1 ms) excluding 20 μs transient periods. A UE that cannot meet the requirements causes interference on other channels. Test conditions specified are normal conditions (NC) only. Only mid-range test frequencies are used. These are specified for each band and channel bandwidth. Refer to Table 53 to find the test frequencies required for each band supported by the UE under test. The test is performed using the lowest and highest channel bandwidths defined in each band supported by the UE, and a 5 MHz channel bandwidth. The required test parameters including modulation type and RB allocation for the uplink vary depending on channel bandwidth and E-UTRA band. Refer to Table 58 through Table 64 for parameter values required for each channel bandwidth and band supported by the UE under test Parameters for Example Procedure The following example procedure uses FDD E-UTRA Band 3 with a 20 MHz channel bandwidth. Test conditions are normal and mid-range test channels are used. The connection diagram used for these example procedures with the UXM is shown in Figure 1. The UE is signaled to transmit at 0 dbm/20 MHz using PUSCH or PUCCH. Aggregate power control tolerance for PUSCH is tested first, then aggregate power control tolerance for PUCCH.

38 38 Keysight Performing LTE and LTE-Advanced Measurements Application Note Aggregate Power Control Tolerance for PUSCH No downlink reference signal is required. The uplink test configuration uses QPSK modulation. Table 13 shows the uplink test configuration used in the example procedure. This is configuration number 6 from Table 64. Table 13. Aggregate Power Control Tolerance for PUSCH UL Test Configuration for Band 3 with 20 MHz Bandwidth FDD Uplink Configuration Ch BW Modulation RB Allocation RB Start Payload Size (bits) MCS (Imcs-Qm) 20 MHz QPSK QPSK Aggregate Power Control Tolerance for PUCCH The uplink reference signal is configured with PUCCH Format 1a. There is no PUSCH transmission. The downlink test configuration uses QPSK modulation. Table 14 shows the downlink test configuration used in the example procedure. This is configuration number 11 from Table 58. Table 14. Aggregate Power Control Tolerance for PUCCH DL Test Configuration for Band 3 with 20 MHz Bandwidth FDD Downlink Configuration Ch BW Payload Size (bits) MCS (Imcs-Qm) Modulation RB Allocation RB Start SF 0-4, 6-9 SF 5 SF 0-4, 6-9 SF 5 20 MHz QPSK n/a 5-QPSK Off Test Steps for Example Procedure 1. Change the UXM parameters described in Table 5. Or, if you have saved this configuration, recall it. See Figure 5. These are the parameters common to all transmitter characteristics tests. 2. Configure the uplink reference signal. Cell1 > Scheduling > Subframes Config Check the box preceding Configure All Subframes at Once. Select 6-QPSK for Uplink MCS(Imcs-Qm) and enter 18 for RB of SF 0. All of the uplink subframes are automatically configured with this value. Uncheck UL SF Alloc of SF 0. All of the uplink subframes are switched off. Uncheck the box preceding Configure All Subframes at Once. Check UL SF Alloc of SF 0 and SF 5. The uplink signal is now configured to match Table 13 and to transmit for one subframe every fifth subframe. 3. Configure the UXM to measure low input signals. Cell1 > System > RF Config Select Manual for Expected Input Power. 4. Connect the UE s Rx/Tx antenna to the UXM front panel port TxRx1/Rx1. Connect the UE s Rx (diversity) antenna to the UXM front panel port TxRx2/Rx2. The connections are now configured to match Figure Switch on Cell1. Cell1 > Activate Cell Wait for the Cell1 status to change to ON. See Figure Switch on the UE and establish a connection. Switch on the UE and wait for Cell1 status to change to CONNECTED. See Figure 7.

39 39 Keysight Performing LTE and LTE-Advanced Measurements Application Note 7. Tell the UE to start transmitting data to the UXM on the uplink. Cell1 > Connect > Start UL MAC Padding An up arrow next to the cell tower as shown in Figure 8 signifies that UL MAC padding has started on Cell1. 8. Configure the aggregate power control tolerance measurement. Back > Tx Measurements > IQ Waveform Use the application switch tool to switch between the LTE/LTE-A application and the X-Series measurement application. See Figure 17. In the X-Series measurement application, perform the following actions. SA Meas Setup > Meas Time Enter 21 ms. Marker > Select Marker Select Marker 1. Enter 0.5 ms. This moves Marker 1 to the center of the first transmission. This is the reference power level for the aggregate power control tolerance measurement. If measuring the PUSCH, configure Marker 1 to measure power over the single subframe transmission. Func Marker > Band/Interval Power Return Select Marker Select Marker 2. If measuring the PUSCH, configure Marker 2 to measure power over the single subframe transmission relative to Marker 1. Func Marker > Band/Interval Power Return Delta Properties > Relative to Select Marker 1. This moves Marker 2 to measure power over the single subframe transmission relative to Marker 1. Configure Marker 2 to the center of the second transmission, 5 ms away from the first transmission at Marker 1. Enter 5 ms to move Marker 2 to the center of the second transmission, 5 ms away from the first transmission. Continue setting up relative markers using Marker 3, 4 and 5 centered at 10, 15 and 20 ms away from the first transmission, respectively. All should be configured to measure power relative to Marker Measure the aggregate power control tolerance of the UE s PUSCH or PUCCH. Use the marker results to record the UE s output power level at the first transmission. This is the reference power level for the other four measurements. The UE s output power level should be 0 dbm/20 MHz ± 3.2 db as required in sub-clause step 2.1 for PUSCH or in step 1.1 for PUCCH. The UE s output power at the next four transmissions must be within ± 4.2 db of the first transmission when measuring on the PUSCH (see Table ). The UE s output power at the next four transmissions must be within ± 3.2 db of the first transmission when measuring on the PUCCH (see Table ). Table 15 shows example recorded results. Table 15. Recorded Aggregate Power Control Tolerance for PUSCH Results Marker Frame/Subframe Power at Marker Pass/Fail 1 1/ dbm/20 MHz Reference 2 1/ db PASS: ± 4.2 db 3 2/ db PASS: ± 4.2 db 4 2/ db PASS: ± 4.2 db 5 3/ db PASS: ± 4.2 db

40 40 Keysight Performing LTE and LTE-Advanced Measurements Application Note Figure 22 shows example results for aggregate power control tolerance for PUSCH. Figure 22. Aggregate Power Control Tolerance for PUSCH Results 10. To measure aggregate power control tolerance on the PUCCH, stop the UL MAC padding and modify the downlink test configuration. Use the application switch tool to return to the LTE/LTE-A application. Back > Back > Connect > Stop UL MAC Padding Cell1 > Scheduling > Subframes Config Check the box preceding Configure All Subframes at Once. Enter 30 for Downlink RB of SF 0. All of the downlink subframes are automatically configured with this value. Uncheck DL SF Alloc for SF 0. All of the downlink subframes are switched off. Uncheck the box preceding Configure All Subframes at Once. Check DL SF Alloc for SF 1 and SF 6. The downlink signal is now configured to match Table 14 and to transmit for one subframe every fifth subframe. A downlink signal transmitting in SF 1 and SF 6 causes the UE s uplink to transmit on SF 0 and 5 as required in Figure Cell1 > Connect > Start DL MAC Padding A down arrow next to the cell tower as shown in Figure 23 signifies that DL MAC padding has started on Cell1. Figure 23. DL MAC Padding Started Repeat steps 8 and To repeat for additional test conditions, follow the steps in After all testing is complete, end the connection. Use the application switch tool to return to the LTE/LTE-A application. Back > Back > Connect > Stop DL MAC Padding Switch off the UE. Back > Cell1 > Deactivate Cell

41 41 Keysight Performing LTE and LTE-Advanced Measurements Application Note 4.15 Example Test Procedure for Frequency Error (sc 6.5.1) Description and Parameter Summary Frequency error shall be tested for all E-UTRA UEs from 3GPP Rel-8 and forward. Frequency error testing is performed to verify the accuracy of the UE s transmitted and received modulated frequencies. A downlink reference measurement channel is used at a low signal level to the UE. The UE s frequency error is measured over one timeslot (0.5 ms). A UE that cannot meet the requirements decreases the stability of its connection with a network. Test conditions specified are normal conditions (NC) along with low and high temperature (TL and TH) and low and high voltage (VL and VH) combinations. Low-, mid- and high-range test frequencies are used. These are specified for each band and channel bandwidth. Refer to Table 53 to find the test frequencies required for each band supported by the UE under test. The test is performed using the lowest and highest channel bandwidths defined in each band supported by the UE, and a 5 MHz channel bandwidth. The required test parameters including modulation type and RB allocation for the downlink and uplink vary depending on channel bandwidth and E-UTRA band. Refer to Table 58 through Table 64 for parameter values required for each channel bandwidth and band supported by the UE under test Parameters for Example Procedure This example procedure uses FDD E-UTRA Band 3 with a 20 MHz channel bandwidth. Test conditions are normal and mid-range test channels are used. The downlink test configuration uses full RB allocation and QPSK modulation as shown in Table Table 16 shows the downlink test configuration used in the example procedure. This is configuration number 12 from Table 58. Table 16. Frequency Error DL Test Configuration for Band 3 with 20 MHz Bandwidth FDD Downlink Configuration Ch BW Payload Size (bits) MCS (Imcs-Qm) Modulation RB Allocation RB Start SF 0-4, 6-9 SF 5 SF 0-4, 6-9 SF 5 20 MHz QPSK n/a 5-QPSK Off Even though Table lists several uplink RB allocations for a 20 MHz channel bandwidth with FDD, Note 2 below the table refers to Table where only one uplink RB allocation is valid for E-UTRA Band 3. The uplink test configuration uses QPSK modulation. Table 17 shows the uplink test configuration used in the example procedure. This is configuration number16 from Table 64. Table 17. Frequency Error UL Test Configuration for Band 3 with 20 MHz Bandwidth FDD Uplink Configuration Ch BW Modulation RB Allocation RB Start Payload Size (bits) MCS (Imcs-Qm) 20 MHz QPSK QPSK Frequency error is tested by transmitting low signal levels to the UE. The signal levels (REFSENS) values are defined in Table for each band and channel bandwidth. The REFSENS value for Band 3 with a 20 MHz channel bandwidth is shown in Table 18.

42 42 Keysight Performing LTE and LTE-Advanced Measurements Application Note Table 18. REFSENS Value for Band 3 with 20 MHz Bandwidth E-UTRA Band 20 MHz Duplex Mode dbm/20 MHz FDD Cell power levels on the UXM can be configured in dbm/15 khz and also in dbm per channel bandwidth. So, the REFSENS value is used directly on the UXM with no need for additional calculations. The UE is signaled to transmit at maximum power during frequency error testing. The connection diagram used for this example procedure with the UXM is shown in Figure Test Steps for Example Procedure 1. Change the UXM parameters described in Table 5. Or, if you have saved this configuration, recall it. See Figure 5. These are the parameters common to all transmitter characteristics tests. 2. Configure the downlink and uplink reference signals. Cell1 > Scheduling > Subframes Config Uncheck DL SF Alloc of SF 5. Check the box preceding Configure All Subframes at Once. Select 2-QPSK for Uplink MCS(Imcs-Qm) of SF 0. All of the uplink subframes are automatically configured with this value. The downlink and uplink signals are now configured to match Table 16 and Table Connect the UE s Rx/Tx antenna to the UXM front panel port TxRx1/Rx1. Connect the UE s Rx (diversity) antenna to the UXM front panel port TxRx2/Rx2. The connections are now configured to match Figure Switch on Cell1. Cell1 > Activate Cell Wait for the Cell1 status to change to ON. See Figure Switch on the UE and establish a connection. Switch on the UE and wait for Cell1 status to change to CONNECTED. See Figure Start transmitting data from the UXM on the downlink. Cell1 > Connect > Start DL MAC Padding A down arrow next to the cell tower as shown in Figure 23 signifies that DL MAC padding has started on Cell1. 7. Tell the UE to start transmitting data to the UXM on the uplink. Start UL MAC Padding An up arrow joins the down arrow next to the cell tower as shown in Figure 24 to signify that both DL and UL MAC padding have started on Cell1. Figure 24. DL and UL MAC Padding Started

43 43 Keysight Performing LTE and LTE-Advanced Measurements Application Note 8. Configure the frequency error measurement. Cell1 > Back > Tx Measurements > Modulation Analysis Use the application switch tool to switch between the LTE/LTE-A application and the X-Series measurement application. See Figure 17. In the X-Series measurement application, perform the following actions. SA Meas Setup > Meas Time Setup > Meas Interval Slot Enter 1 slot. SA Meas > More Select Conformance EVM. SA Meas Setup > Copy from Mod Analysis These selections configure the modulation analysis and conformance EVM measurements to test frequency error. Use the application switch tool to return to the LTE/LTE-A application. Do not press the Re-Sync with BSE button. Back > Modulation Analysis 9. Configure the downlink signal level to the REFSENS value using the menu key. Power Control Change the Cell Power (Channel BW) to dbm/20 MHz. This is consistent with Table 18. Figure 25. Configure REFSENS Cell Power Level 10. Configure the UE s output power level. Change UE Power Control Mode to All Up Bits. See Figure 9. Back 11. Measure the UE s frequency error. Freq Err is shown in Hz as a textual result in the lower right result pane, the Ch1 Error Summary (CC0). See Figure 26 for example results. The absolute value of the UE s frequency error must be within 15 Hz of 0.1 PPM (see sub-clause ). For the mid-range test channel in Band 3, 0.1 PPM is 175 Hz. So, the absolute value of the UE s frequency error must be 190 Hz. Channel Power is shown in dbm in the same set of results. The UE s maximum output power should be approximately 23 dbm/20 MHz in Band 3 (see Table ) as required when testing frequency error.

44 44 Keysight Performing LTE and LTE-Advanced Measurements Application Note Figure 26. Frequency Error Results using Modulation Analysis For a closer view of the lower right pane results, use the X-Series measurement application to zoom in. Use the application switch tool to switch between the LTE/LTE-A application and the X-Series measurement application. Press the down arrow at the top center of the screen. See Figure 17. In the X-Series measurement application, perform the following actions. Using a mouse, double-click on the lower right pane. Or, use a double tap on the screen. The lower right pane results should now be the only results on the screen. Use the application switch tool to return to the LTE/LTE-A application. The results are shown in Figure 27. Figure 27. Frequency Error Results with Zoomed Modulation Analysis

45 45 Keysight Performing LTE and LTE-Advanced Measurements Application Note To return to the four panes of results from the modulation analysis measurement, use the X-Series measurement application to reset the measurement view. Use the application switch tool to switch between the LTE/LTE-A application and the X-Series measurement application. See Figure 17. In the X-Series measurement application, perform the following actions. Using a mouse, double-click on the results. Or, use a double tap on the screen. The four panes of results should now be visible on the screen. Use the application switch tool to return to the LTE/LTE-A application. Frequency error can also be tested using the UXM s conformance EVM measurement. This measurement provides a list of textual results for all of the requirements specified in using the Global In-Channel TX-Test (see annex E). Thus, all of these results can be analyzed after performing just one measurement on the UXM. Figure 28 shows the results displayed after a conformance EVM measurement is performed on the UXM. To view the Freq Error results using the conformance EVM measurement, select this Tx measurement. Back > Conformance EVM Figure 28. Frequency Error Results using Conformance EVM 12. To repeat for additional test conditions, follow the steps in After all testing is complete, end the connection. Back > Back > Connect > Stop UL MAC Padding Stop DL MAC Padding Switch off the UE. Back > Cell1 > Deactivate Cell

46 46 Keysight Performing LTE and LTE-Advanced Measurements Application Note 4.16 Example Test Procedure for Error Vector Magnitude (sc ) Description and Parameter Summary Error vector magnitude (EVM) shall be tested for all E-UTRA UEs from 3GPP Rel-8 and forward. EVM compares a measured waveform with a reference waveform that has been corrected by the algorithm described in annex E. EVM is measured on three uplink channels: PUSCH, PUCCH and PRACH. Downlink and uplink reference signals are used depending on the UL channel being measured. The UE s EVM is measured as it transmits at maximum output power and then again at a low output power level. A UE that cannot meet the EVM requirements decreases the stability of its connection with a network. Test conditions specified are normal conditions (NC) only. Low-, mid- and high-range test frequencies are used. These are specified for each band and channel bandwidth. Refer to Table 53 to find the test frequencies required for each band supported by the UE under test. The test is performed using the lowest and highest channel bandwidths defined in each band supported by the UE, and a 5 MHz channel bandwidth. The required test parameters including modulation type and RB allocation for the downlink and uplink vary depending on channel bandwidth and E-UTRA band. Refer to Table 58 through Table 64 for parameter values required for each channel bandwidth and band supported by the UE under test Parameters for Example Procedure The following example procedure uses FDD E-UTRA Band 3 with a 20 MHz channel bandwidth. Test conditions are normal and mid-range test channels are used. The connection diagram used for these example procedures with the UXM is shown in Figure 1. EVM for PUSCH is tested first, then EVM for PUCCH, and, finally, EVM for PRACH EVM for PUSCH No downlink reference signal is required. The uplink test configurations use QPSK and 16QAM modulation. Table 19 shows the uplink test configurations used in the example procedure. These are configuration numbers 9, 11, 16, 18, 19 and 20 from Table 64. Table 19. EVM for PUSCH UL Test Configurations for Band 3 with 20 MHz Bandwidth FDD Uplink Configuration Ch BW Modulation RB Allocation RB Start Payload Size (bits) MCS (Imcs-Qm) 20 MHz QPSK QPSK 20 MHz QPSK QPSK 20 MHz QPSK QPSK 20 MHz 16QAM QAM 20 MHz 16QAM QAM 20 MHz 16QAM QAM Note 2 below Table requires each partial RB allocation to be tested starting at zero and max + 1 RB allocation. For 20 MHz channel bandwidth, the partial RB allocation is 18. So, each test condition using RB allocation 18 (with QPSK or with 16QAM) must be tested twice, once with the RB allocation starting at 0 and once with the RB allocation starting at = 82.

47 47 Keysight Performing LTE and LTE-Advanced Measurements Application Note The 16QAM test condition using full RB allocation with 20 MHz channel bandwidth shall only be tested for UE categories 2, as stated in Note 3 below Table EVM for PUCCH The uplink reference signal is configured with PUCCH Format 1a. There is no PUSCH transmission. The downlink test configuration uses QPSK modulation. Table 20 shows the downlink test configuration used in the example procedure. This is configuration number 11 from Table 58. Table 20. EVM for PUCCH DL Test Configuration for Band 3 with 20 MHz Bandwidth FDD Downlink Configuration Ch BW Payload Size (bits) MCS (Imcs-Qm) Modulation RB Allocation RB Start SF 0-4, 6-9 SF 5 SF 0-4, 6-9 SF 5 20 MHz QPSK n/a 5-QPSK Off EVM for PRACH Since only the UE s PRACH is measured, no downlink or uplink reference signals are used. When the UE attempts to connect to the UXM, its PRACH preambles are measured Test Steps for Example Procedure 1. Change the UXM parameters described in Table 5. Or, if you have saved this configuration, recall it. See Figure 5. These are the parameters common to all transmitter characteristics tests. 2. Configure the uplink reference signal. Cell1 > Scheduling > Subframes Config Check the box preceding Configure All Subframes at Once. Select 2-QPSK for Uplink MCS(Imcs-Qm) of SF 0. All of the uplink subframes are automatically configured with this value. The uplink signal is now configured to match the first row of Table Connect the UE s Rx/Tx antenna to the UXM front panel port TxRx1/Rx1. Connect the UE s Rx (diversity) antenna to the UXM front panel port TxRx2/Rx2. The connections are now configured to match Figure Switch on Cell1. Cell1 > Activate Cell Wait for the Cell1 status to change to ON. See Figure Switch on the UE and establish a connection. Switch on the UE and wait for Cell1 status to change to CONNECTED. See Figure Tell the UE to start transmitting data to the UXM on the uplink. Cell1 > Connect > Start UL MAC Padding An up arrow next to the cell tower as shown in Figure 8 signifies that UL MAC padding has started on Cell1. 7. Configure the EVM measurement. Back > Tx Measurements > Conformance EVM 8. Configure the UE s initial output power level using the menu key. Power Control Change UE Power Control Mode to All Up Bits. See Figure 9. Back

48 48 Keysight Performing LTE and LTE-Advanced Measurements Application Note 9. Measure the EVM of the UE s PUSCH or PUCCH. The conformance EVM measurement provides a list of textual results for all of the requirements specified in using the Global In-Channel TX-Test (see annex E). Thus, all of these results can be analyzed after performing just one measurement on the UXM. The EVM and 3GPP-defined QPSK EVM results are shown in Figure 29. Figure 29. EVM for PUSCH Results using Conformance EVM The UE s initial output power level (maximum) should be approximately 23 dbm/20 MHz in Band 3 (see Table ) sub-clause also specifies another UE output power level for this test: dbm/20 MHz ± 3.2 db. The Channel Power result can be used to verify these levels. The EVM result corresponds to the requirement to measure PUSCH or PUCCH EVM. The UE s PUSCH and PUCCH EVM must be 17.5% for this test configuration (with QPSK, see sub-clause ). Derivation of the PUSCH result is defined in annex E.4.2. The PUCCH result in defined in annex E The 3GPP-defined QPSK EVM result corresponds to the requirement to measure PUSCH EVM DMRS. The UE s PUSCH EVM DMRS must be 17.5% for this test configuration (with QPSK, see sub-clause ), although this limit is not yet approved by 3GPP. Derivation of this result is defined in annex E The UE s EVM can also be measured using the modulation analysis measurement. See Figure 26 for an example. For a closer view of the lower right pane results in the modulation analysis measurement, use the X-Series measurement application to zoom in. See Figure 27 for an example. 10. To measure EVM at low UE output power, modify the target power level using the menu key. Power Control If needed, change UE Power Control Mode to Auto. To measure EVM for PUSCH, enter dbm for PUSCH Target Power. To measure EVM for PUCCH, enter dbm for PUCCH Target Power. Repeat step 9.

49 49 Keysight Performing LTE and LTE-Advanced Measurements Application Note 11. To measure EVM on the PUCCH, modify the downlink test configuration and the X-Series measurement application. Back > Back > Connect > Stop UL MAC Padding Cell1 > Scheduling > Subframes Config Enter 30 for Downlink RB of SF 0. All of the downlink subframes are automatically configured with this value. Uncheck the box preceding Configure All Subframes at Once. Uncheck DL SF Alloc of SF 5. The downlink signal is now configured to match Table 20. Cell1 > Connect > Start DL MAC Padding A down arrow next to the cell tower as shown in Figure 23 signifies that DL MAC padding has started on Cell1. Back > Tx Measurements > Modulation Analysis Power Control Enter 23 dbm for PUCCH Target Power. Use the application switch tool to switch between the LTE/LTE-A application and the X-Series measurement application. See Figure 17. In the X-Series measurement application, perform the following actions. SA Meas Setup > Sync/Format Setup > Sync Type Select PUCCH DM-RS. SA Meas > More Select Conformance EVM. SA Meas Setup > Copy from Mod Analysis These selections configure the modulation analysis and conformance EVM measurements to test EVM on the PUCCH. Use the application switch tool to return to the LTE/LTE-A application. Do not press the Re-Sync with BSE button. Repeat steps 9 and 10. Figure 30 shows the EVM for PUCCH results from the modulation analysis measurement with the UE transmitting at low PUCCH power Figure 30. EVM for PUCCH Results using Modulation Analysis

50 50 Keysight Performing LTE and LTE-Advanced Measurements Application Note 12. To repeat measurement of EVM for PUSCH and PUCCH with additional test conditions, follow the steps in To measure EVM on the PRACH, end the connection and reconfigure for PRACH. Back > Back > Connect > Stop DL MAC Padding Switch off the UE. Back > Cell1 > Deactivate Cell Cell1 > PHY > General Enter 4 for PRACH Config Index. This matches the requirement for these test conditions in Table Cell1 > MAC/RLC/PDCP > General Select 0 db for Power Ramping Step. Enter -120 dbm for Initial Target Power. Select 10 for Max Preamble Transmission. These parameter values match the requirements for these test conditions in Table Repeat step 4. Tx Measurements > Mod Analysis Use the application switch tool to switch between the LTE/LTE-A application and the X-Series measurement application. See Figure 17. In the X-Series measurement application, perform the following actions. See Figure 18. SA Meas Setup > Chan Profile Setup > Edit User Mapping Near the top of the display, move the scroll bar to display the PRACH selections. Check the two boxes below PRACH Present Include. See Figure 31. OK Figure 31. X-Series Measurement Application Configuration for EVM on the PRACH Trigger > Prot Chan Detection Single Restart These selections configure the modulation analysis measurement to test EVM on the PRACH. Use the application switch tool to return to the LTE/LTE-A application. Do not press the Re-Sync with BSE button. Repeat step 5. Tell the UE to send a PRACH for measurement by the UXM. Back > Back > Cell1 > Function Test > Send PDCCH Order The UE sends a PRACH each time this command is sent. Figure 32 shows the EVM for PRACH results for test point 1 as required in Table using the modulation analysis measurement.

51 51 Keysight Performing LTE and LTE-Advanced Measurements Application Note Figure 32. EVM for PRACH Results using Modulation Analysis To repeat the test of EVM on the PRACH for test point 2, end the connection and modify the PRACH initial target power. Switch off the UE. Back > Cell1 > Deactivate Cell Cell1 > MAC/RLC/PDCP > General Enter -90 dbm for Initial Target Power. Repeat step 4. Tx Measurements > Mod Analysis Use the application switch tool to switch between the LTE/LTE-A application and the X-Series measurement application. See Figure 17. In the X-Series measurement application, perform the following actions. See Figure 18. SA Meas Setup > Chan Profile Setup > Edit User Mapping Near the top of the display, move the scroll bar to display the PRACH selections. Check the two boxes below PRACH Present Include. See Figure 31. OK Trigger > Prot Chan Detection Single Restart Use the application switch tool to return to the LTE/LTE-A application. Do not press the Re-Sync with BSE button. Repeat step 5. Tell the UE to send a PRACH for measurement by the UXM. Cell1 > Function Test > Send PDCCH Order The EVM for PRACH results for test point 2 are shown on the UXM. 14. To repeat for additional test conditions, follow the steps in After all testing is complete, end the connection. Switch off the UE. Back > Cell1 > Deactivate Cell

52 52 Keysight Performing LTE and LTE-Advanced Measurements Application Note 4.17 Example Test Procedure for PUSCH-EVM with Exclusion Period (sc A) Description and Parameter Summary PUSCH EVM shall be tested for all E-UTRA UEs from 3GPP Rel-8 and forward. PUSCH- EVM with exclusion period compares a measured waveform with a reference waveform that has been corrected by the algorithm described in annex E just as for the EVM test. However, PUSCH-EVM is measured over a shorter time period (16 slots instead of 20 slots) with an alternating RB pattern transmitted from the UE. This alternating pattern creates transients which can degrade UE EVM performance. No downlink reference signal is used. A UE that cannot meet the EVM requirements in the presence of transients decreases the stability of its connection with a network. Test conditions specified are normal conditions (NC) only. Only low-range test frequencies are used. These are specified for each band and channel bandwidth. Refer to Table 53 to find the test frequencies required for each band supported by the UE under test. The test is performed using a 10 MHz channel bandwidth for all E-UTRA bands. A specific RB allocation pattern is defined (see Figure A.4.2-1) for UE transmission using QPSK and 16QAM. This pattern applies for all E-UTRA bands Parameters for Example Procedure This example procedure uses FDD E-UTRA Band 3 with a 10 MHz channel bandwidth. Test conditions are normal and a low-range test channel is used. The uplink test configurations use QPSK and 16QAM modulation. Table 21 shows the uplink test configurations used in the example procedure. Table 21. PUSCH-EVM with Exclusion Period UL Test Configurations for Band 3 with 10 MHz Bandwidth FDD Uplink Configuration Subframe SF0-1 SF2 SF3 SF4-6 SF7 SF8 SF9 QPSK Configuration RB Allocation Off 12 1 Off 1 12 Off Payload Size (bits) MCS (Imcs-Qm) 6-QPSK 5-QPSK 5-QPSK 6-QPSK 16QAM Configuration RB Allocation Off 12 1 Off 1 12 Off Payload Size (bits) MCS (Imcs-Qm) 21-16QAM 21-16QAM 21-16QAM 21-16QAM Note 1 below Figure A specifies that subframes 0, 1, 4, 5, 6 and 9 should be switched off for FDD. The UE is signaled to transmit at 0 dbm/10 MHz during PUSCH-EVM with exclusion period testing. The connection diagram used for this example procedure with the UXM is shown in Figure 1.

53 53 Keysight Performing LTE and LTE-Advanced Measurements Application Note Test Steps for Example Procedure 1. Change the UXM parameters described in Table 5. Or, if you have saved this configuration, recall it. See Figure 5. These are the parameters common to all transmitter characteristics tests. 2. Configure the channel bandwidth and the low-range test channel. Cell1 > Cell > Config Select 10 MHz for Downlink Bandwidth. The Uplink Bandwidth is configured automatically. Enter 1250 for Downlink EARFCN. This is the low-range test channel for Band 3 with 10 MHz channel bandwidth as defined by 3GPP. The Uplink EARFCN is automatically configured. 3. Configure the uplink reference signal. Cell1 > Scheduling > Subframes Config Check the box preceding Configure All Subframes at Once. Uncheck UL SF Alloc of SF 0. All of the UL subframes are switched off. Uncheck the box preceding Configure All Subframes at Once. Select 6-QPSK for Uplink MCS(Imcs-Qm) and enter 12 for RB of SF 2. Check UL SF Alloc of SF 2. Select 5-QPSK for Uplink MCS(Imcs-Qm) and enter 1 for RB of SF 3. Check UL SF Alloc of SF 3. Select 5-QPSK for Uplink MCS(Imcs-Qm) and enter 1 for RB of SF 7. Check UL SF Alloc of SF 7. Select 6-QPSK for Uplink MCS(Imcs-Qm) and enter 12 for RB of SF 8. Check UL SF Alloc of SF 8. The uplink signal is now configured to match the QPSK configuration in Table 21. Figure 33 shows the configuration on the UXM. Figure 33. Example UL Configuration for PUSCH-EVM with Exclusion Period using QPSK 4. Connect the UE s Rx/Tx antenna to the UXM front panel port TxRx1/Rx1. Connect the UE s Rx (diversity) antenna to the UXM front panel port TxRx2/ Rx2. The connections are now configured to match Figure 1.

54 54 Keysight Performing LTE and LTE-Advanced Measurements Application Note 5. Switch on Cell1. Cell1 > Activate Cell Wait for the Cell1 status to change to ON. See Figure Switch on the UE and establish a connection. Switch on the UE and wait for Cell1 status to change to CONNECTED. See Figure Tell the UE to start transmitting data to the UXM on the uplink. Cell1 > Connect > Start UL MAC Padding An up arrow next to the cell tower as shown in Figure 8 signifies that UL MAC padding has started on Cell1. 8. Configure the PUSCH-EVM measurement. Back > Tx Measurements > Modulation Analysis Use the application switch tool to switch between the LTE/LTE-A application and the X-Series measurement application. See Figure 17. In the X-Series measurement application, perform the following actions. SA Meas Setup > Meas Time Setup > Result Length Enter 16 slots. Meas Interval Slot Enter 16 slots. Return More > Advanced > More > More Select Exclude EVM Transient Time. This switches on the exclusion of the EVM transients around the power changes in the RB allocation pattern. SA Meas > More Select Conformance EVM. SA Meas Setup > Copy from Mod Analysis Use the application switch tool to return to the LTE/LTE-A application. Do not press the Re-Sync with BSE button. 9. Measure the UE s PUSCH-EVM. Back > Modulation Analysis The EVM result is shown in the first row of lower right result pane, the Ch1 Error Summary (CC0), as seen in Figure 34. Figure 34. PUSCH-EVM with Exclusion Period Results with Modulation Analysis

55 55 Keysight Performing LTE and LTE-Advanced Measurements Application Note The UE s PUSCH-EVM must be 17.5% as required in sub-clause A.5. Also shown is the Channel Power result. For this test, the UE s output power should be 0 dbm ± 3.2 db as required in sub-clause A.4.2 step 1. For a closer view of the lower right pane results, use the X-Series measurement application to zoom in. See Figure 27 for an example. PUSCH-EVM can also be tested using the UXM s conformance EVM measurement. This measurement provides a list of textual results for all of the requirements specified in using the Global In-Channel TX-Test (see annex E). Thus, all of these results can be analyzed after performing just one measurement on the UXM. Figure 35 shows the results displayed after a conformance EVM measurement is performed on the UXM. Figure 35. PUSCH-EVM with Exclusion Period Results using Conformance EVM To view the PUSCH-EVM results using the conformance EVM measurement, select this Tx measurement. Back > Conformance EVM 10. To repeat for additional test conditions, follow the steps in After all testing is complete, end the connection. Back > Back > Connect > Stop UL MAC Padding Switch off the UE. Back > Cell1 > Deactivate Cell

56 56 Keysight Performing LTE and LTE-Advanced Measurements Application Note 4.18 Example Test Procedure for Carrier Leakage (sc ) Description and Parameter Summary Carrier leakage shall be tested for all E-UTRA UEs from 3GPP Rel-8 and forward. Carrier leakage, also called I/Q origin offset, is interference caused by DC offset or crosstalk. It is another result from the EVM algorithm described in annex E. No downlink reference signal is used. The UE s carrier leakage in dbc (db relative to the carrier) is measured as it transmits at three output power levels. A UE with excessive carrier leakage has interference on its center sub-carriers, especially when transmitting at low output power levels, thus decreasing the stability of its connection with a network. Test conditions specified are normal conditions (NC) along with low and high temperature (TL and TH) and low and high voltage (VL and VH) combinations. Low-, mid- and high-range test frequencies are used. These are specified for each band and channel bandwidth. Refer to Table 53 to find the test frequencies required for each band supported by the UE under test. The test is performed using the lowest and highest channel bandwidths defined in each band supported by the UE, and a 5 MHz channel bandwidth. The required test parameters including modulation type and RB allocation for the uplink vary depending on channel bandwidth and E-UTRA band. Refer to Table 59 through Table 64 for parameter values required for each channel bandwidth and band supported by the UE under test Parameters for Example Procedure This example procedure uses FDD E-UTRA Band 3 with a 20 MHz channel bandwidth. Test conditions are normal and mid-range test channels are used. The uplink test configurations use QPSK modulation. Table 22 shows the uplink test configurations used in the example procedure. These are configurations 9 and 11 from Table 64. Table 22. Carrier Leakage UL Test Configurations for Band 3 with 20 MHz Bandwidth FDD Uplink Configuration Ch BW Modulation RB Allocation RB Start Payload Size (bits) MCS (Imcs-Qm) 20 MHz QPSK QPSK 20 MHz QPSK QPSK Note 2 below Table requires each partial RB allocation to be tested starting at zero and max + 1 RB allocation. For 20 MHz channel bandwidth, the partial RB allocation is 18. So, each test condition using RB allocation 18 (with QPSK or with 16QAM) must be tested twice, once with the RB allocation starting at 0 and once with the RB allocation starting at = 82. The connection diagram used for this example procedure with the UXM is shown in Figure 1.

57 57 Keysight Performing LTE and LTE-Advanced Measurements Application Note Test Steps for Example Procedure 1. Change the UXM parameters described in Table 5. Or, if you have saved this configuration, recall it. See Figure 5. These are the parameters common to all transmitter characteristics tests. 2. Configure the uplink reference signal. Cell1 > Scheduling > Subframes Config Check the box preceding Configure All Subframes at Once. Select 6-QPSK for Uplink MCS(Imcs-Qm) and enter 18 for RB of SF 0. All of the uplink subframes are automatically configured with this value. The uplink signal is now configured to match the first row of Table Connect the UE s Rx/Tx antenna to the UXM front panel port TxRx1/Rx1. Connect the UE s Rx (diversity) antenna to the UXM front panel port TxRx2/Rx2. The connections are now configured to match Figure Switch on Cell1. Cell1 > Activate Cell Wait for the Cell1 status to change to ON. See Figure Switch on the UE and establish a connection. Switch on the UE and wait for Cell1 status to change to CONNECTED. See Figure Tell the UE to start transmitting data to the UXM on the uplink. Cell1 > Connect > Start UL MAC Padding An up arrow next to the cell tower as shown in Figure 8 signifies that UL MAC padding has started on Cell1. 7. Configure the carrier leakage measurement. Back > Tx Measurements > Conformance EVM 8. Configure the UE s initial output power level using the menu key. Power Control Enter 3.2 dbm for PUSCH Target Power. Back Figure 36. UE PUSCH Target Power Configuration

58 58 Keysight Performing LTE and LTE-Advanced Measurements Application Note 9. Measure the UE s carrier leakage. The conformance EVM measurement provides a list of textual results for all of the requirements specified in using the Global In-Channel TX-Test (see annex E). Thus, all of these results can be analyzed after performing just one measurement on the UXM. Figure 37 shows the IQ Offset results displayed after a conformance EVM measurement is performed on the UXM. Figure 37. Carrier Leakage Results using Conformance EVM The UE s initial output power should be 3.2 dbm/20 MHz ± 3.2 db as required in sub-clause This sub-clause also specifies two other UE output power levels for this test: dbm/20 MHz ± 3.2 db and dbm/20 MHz ± 3.2 db. The Channel Power result can be used to verify these levels. For an output power level of 3.2 dbm, the UE s IQ offset must be 24.2 db. For an output power level of dbm, the UE s IQ offset must be db. For an output power level of dbm, the UE s IQ offset must be -9.2 db. These are the values required in Table The derivation for IQ offset is defined in annex E.3.1. Carrier leakage can also be tested using the modulation analysis measurement. The IQ Offset and Channel Power results are shown at the bottom of the lower right result pane. See Figure 26 for an example. For a closer view of the lower right pane results, use the X-Series measurement application to zoom in. See Figure 27 for an example. 10. To measure carrier leakage at the other required UE output power levels, modify the target power level using the menu key. Power Control Enter dbm or dbm for PUSCH Target Power. See Figure 36. Back Repeat step To repeat for additional test conditions, follow the steps in After all testing is complete, end the connection. Back > Back > Connect > Stop UL MAC Padding Switch off the UE. Back > Cell1 > Deactivate Cell

59 59 Keysight Performing LTE and LTE-Advanced Measurements Application Note 4.19 Example Test Procedure for In-Band Emissions for Non- Allocated RB (sc ) Description and Parameter Summary In-band emissions for non-allocated resource blocks (RB) shall be tested for all E-UTRA UEs from 3GPP Rel-8 and forward. This test measures interfering signals present in the resource blocks that are not allocated. In-band emissions are included as results from the EVM algorithm described in annex E. In-band emissions are measured on both the PUSCH and PUCCH uplink channels. Downlink and uplink reference signals are used depending on the uplink channel being measured. The UE s in-band emissions are split into three results: 1) in-band emissions in db on any non-allocated RB, 2) emissions at the image frequencies of the allocated bandwidth expressed as a ratio of power (db) in one non-allocated RB to all allocated RBs, and 3) emissions at DC also expressed as a ratio of power (db) in one non-allocated RB to all allocated RBs. The UE s in-band emissions are measured as it transmits at three output power levels. A UE with excessive in-band emissions causes interference in non-allocated RBs thus decreasing the stability of its connection with a network. Test conditions specified are normal conditions (NC) along with low and high temperature (TL and TH) and low and high voltage (VL and VH) combinations. Low-, mid- and high-range test frequencies are used. These are specified for each band and channel bandwidth. Refer to Table 53 to find the test frequencies required for each band supported by the UE under test. The test is performed using the lowest and highest channel bandwidths defined in each band supported by the UE, and a 5 MHz channel bandwidth. The required test parameters including modulation type and RB allocation for the downlink and uplink vary depending on channel bandwidth and E-UTRA band. Refer to Table 58 through Table 64 for parameter values required for each channel bandwidth and band supported by the UE under test Parameters for Example Procedure The following example procedure uses FDD E-UTRA Band 3 with a 20 MHz channel bandwidth. Test conditions are normal and mid-range test channels are used. The connection diagram used for these example procedures with the UXM is shown in Figure 1. In-band emissions for PUSCH are tested first, then in-band emissions for PUCCH In-Band Emissions for PUSCH No downlink reference signal is required. The uplink test configurations use QPSK modulation. Table 23 shows the uplink test configurations used in the example procedure. These are configuration numbers 9 and 11 from Table 64. Table 23. In-Band Emissions for PUSCH UL Test Configurations for Band 3 with 20 MHz Bandwidth FDD Uplink Configuration Ch BW Modulation RB Allocation RB Start Payload Size (bits) MCS (Imcs-Qm) 20 MHz QPSK QPSK 20 MHz QPSK QPSK

60 60 Keysight Performing LTE and LTE-Advanced Measurements Application Note Note 2 below Table requires each partial RB allocation to be tested starting at zero and max + 1 RB allocation. For 20 MHz channel bandwidth, the partial RB allocation is 18. So, each test condition using RB allocation 18 (with QPSK or with 16QAM) must be tested twice, once with the RB allocation starting at 0 and once with the RB allocation starting at = In-Band Emissions for PUCCH The uplink reference signal is configured with PUCCH Format 1a. There is no PUSCH transmission. The downlink test configuration uses QPSK modulation. Table 24 shows the downlink test configuration used in the example procedure. This is configuration number 11 from Table 58. Table 24. In-Band Emissions for PUCCH DL Test Configuration for Band 3 with 20 MHz Bandwidth FDD Downlink Configuration Ch BW Payload Size (bits) MCS (Imcs-Qm) Modulation RB Allocation RB Start SF 0-4, 6-9 SF 5 SF 0-4, 6-9 SF 5 20 MHz QPSK n/a 5-QPSK Off Test Steps for Example Procedure 1. Change the UXM parameters described in Table 5. Or, if you have saved this configuration, recall it. See Figure 5. These are the parameters common to all transmitter characteristics tests. 2. Configure the downlink reference signal. Cell1 > PHY > General Enter 0 for nrb-cqi. This parameter value is required per Table in sub-clause for testing in-band emissions for PUCCH and must be configured on the UXM before the connection is established. 3. Configure the uplink reference signal. Cell1 > Scheduling > Subframes Config Check the box preceding Configure All Subframes at Once. Select 6-QPSK for Uplink MCS(Imcs-Qm) and enter 18 for RB of SF 0. All of the uplink subframes are automatically configured with this value. The uplink signal is now configured to match the first row of Table Connect the UE s Rx/Tx antenna to the UXM front panel port TxRx1/Rx1. Connect the UE s Rx (diversity) antenna to the UXM front panel port TxRx2/Rx2. The connections are now configured to match Figure Switch on Cell1. Cell1 > Activate Cell Wait for the Cell1 status to change to ON. See Figure Switch on the UE and establish a connection. Switch on the UE and wait for Cell1 status to change to CONNECTED. See Figure Tell the UE to start transmitting data to the UXM on the uplink. Cell1 > Connect > Start UL MAC Padding An up arrow next to the cell tower as shown in Figure 8 signifies that UL MAC padding has started on Cell1. 8. Configure the in-band emissions measurement. Back > Tx Measurements > Modulation Analysis

61 61 Keysight Performing LTE and LTE-Advanced Measurements Application Note 9. Configure the UE s initial output power level using the menu key. Power Control Enter 3.2 dbm for PUSCH Target Power. See Figure 36. Back 10. Measure the in-band emissions of the UE s PUSCH or PUCCH. To view the in-band emissions results, use the X-Series measurement application window to scroll to the bottom of the pane. Use the application switch tool to switch between the LTE/LTE-A application and the X-Series measurement application. See Figure 17. In the X-Series measurement application, perform the following action. Scroll to the bottom of the lower right result pane. Use the application switch tool to return to the LTE/LTE-A application. The in-band emissions results are now visible as shown in Figure 38. Figure 38. In-Band Emissions for PUSCH Results using Modulation Analysis The In-band Emissions Result is shown as PASS or FAIL in the lower right result pane, the Ch1 Error Summary (CC0). Also provided is a result in db for the least difference between the measured result and the specified limit. This is called the Narrowest pass margin. While the UXM s pass/fail limits are not configurable for the measurement of in-band emissions, the measured results are compared to the test requirements defined in Table For a closer view of the lower right pane results, use the X-Series measurement application to zoom in. See Figure 27 for an example. The UE s initial output power should be 3.2 dbm/20 MHz ± 3.2 db as required in sub-clause This sub-clause also specifies two other UE output power levels for this test: dbm/20 MHz ± 3.2 db and dbm/20 MHz ± 3.2 db. The Channel Power result can be used to verify these levels. In-band emissions can also be tested using the UXM s conformance EVM measurement. This measurement provides a list of textual results for all of the requirements specified in using the Global In-Channel TX-Test (see annex E). Thus, all of these results can be analyzed after performing just one measurement on the UXM.

62 62 Keysight Performing LTE and LTE-Advanced Measurements Application Note To view the in-band emissions results using the conformance EVM measurement, select this Tx measurement. Back > Conformance EVM The conformance EVM measurement provides more detailed in-band emissions results than those provided with the modulation analysis measurement (see Figure 39). The In-band Emissions Result of Pass or Fail is still provided, along with the In-band Emissions worst Margin, which is the same as the Narrowest pass margin result provided in the modulation analysis measurement. Conformance EVM also provides the worst-case in-band emissions results by slot, In-band Emissions worst Slot as a slot number and in dbm. Figure 39. In-Band Emissions for PUSCH Results with Conformance EVM While the UXM s pass/fail limits are not configurable for the measurement of in-band emissions, the measured results are compared to the test requirements defined in Table However, the In-band Emissions Result of Pass or Fail is not correct when using the conformance EVM measurement. This is a known issue with this measurement. 11. To measure in-band emissions at the other required UE output power levels, modify the target power level using the menu key. See Figure 36. Power Control To measure in-band emissions for PUSCH, enter dbm or dbm for PUSCH Target Power. To measure in-band emissions for PUCCH, enter dbm or dbm for PUSCH Target Power. This configures the PUCCH Target Power 10 db higher than the PUSCH. Repeat step To measure in-band emissions on the PUCCH, modify the downlink test configuration and the X-Series measurement application. Back > Back > Connect > Stop UL MAC Padding Cell1 > Scheduling > Subframes Config Enter 30 for Downlink RB of SF 0. All of the downlink subframes are automatically configured with this value. Uncheck the box preceding Configure All Subframes at Once. Uncheck DL SF Alloc for SF 5. The downlink signal is now configured to match Table 24.

63 63 Keysight Performing LTE and LTE-Advanced Measurements Application Note Cell1 > Connect > Start DL MAC Padding A down arrow next to the cell tower as shown in Figure 23 signifies that DL MAC padding has started on Cell1. Back > Tx Measurements > Modulation Analysis Power Control Enter 3.2 dbm for PUCCH Target Power. Use the application switch tool to switch between the LTE/LTE-A application and the X-Series measurement application. See Figure 17. In the X-Series measurement application, perform the following actions. SA Meas Setup > Sync/Format Setup > Sync Type Select PUCCH DM-RS. Return Meas Time Setup > Meas Offset Slot Enter 2 slots. SA Meas > More Select Conformance EVM. SA Meas Setup > Copy from Mod Analysis These selections configure the modulation analysis and conformance EVM measurements to test in-band emissions on the PUCCH. Use the application switch tool to return to the LTE/LTE-A application. Do not press the Re-Sync with BSE button. Repeat steps 10 and 11. Figure 40 shows the in-band emissions for PUCCH results with the UE transmitting at low PUCCH power. Figure 40. In-Band Emissions for PUCCH Results using Modulation Analysis 13. To repeat for additional test conditions, follow the steps in After all testing is complete, end the connection. Back > Back > Connect > Stop DL MAC Padding Switch off the UE. Back > Cell1 > Deactivate Cell

64 64 Keysight Performing LTE and LTE-Advanced Measurements Application Note 4.20 Example Test Procedure for EVM Equalizer Spectrum Flatness (sc ) Description and Parameter Summary EVM equalizer spectrum flatness shall be tested for all E-UTRA UEs from 3GPP Rel-8 and forward. Correction due to the equalizer is applied in the EVM measurement algorithm described in annex E. The validity of this algorithm s results is dependent upon the spectrum flatness of the UE s equalizer. No downlink reference signal is used. The UE transmits at maximum output power, then the maximum peak-to-peak ripple of the equalizer s coefficients is measured. The spectrum flatness of the UE s equalizer must meet the minimum requirements in this test for EVM measurements to be valid. Test conditions specified are normal conditions (NC) along with low and high temperature (TL and TH) and low and high voltage (VL and VH) combinations. Low-, mid- and high-range test frequencies are used. These are specified for each band and channel bandwidth. Refer to Table 53 to find the test frequencies required for each band supported by the UE under test. The test is performed using the lowest and highest channel bandwidths defined in each band supported by the UE, and a 5 MHz channel bandwidth. The required test parameters including modulation type and RB allocation for the uplink vary depending on channel bandwidth and E-UTRA band. Refer to Table 59 through Table 64 for parameter values required for each channel bandwidth and band supported by the UE under test Parameters for Example Procedure This example procedure uses FDD E-UTRA Band 3 with a 20 MHz channel bandwidth. Test conditions are normal and mid-range test channels are used. The uplink test configuration uses QPSK modulation. Table 25 shows the uplink test configuration used in the example procedure. This is configuration number 16 from Table 64. Table 25. EVM Equalizer Spectrum Flatness UL Test Configuration for Band 3 with 20 MHz Bandwidth FDD Uplink Configuration Ch BW Modulation RB Allocation RB Start Payload Size (bits) MCS (Imcs-Qm) 20 MHz QPSK QPSK The UE is signaled to transmit at maximum power during EVM equalizer spectrum flatness testing. The connection diagram used for this example procedure with the UXM is shown in Figure Test Steps for Example Procedure 1. Change the UXM parameters described in Table 5. Or, if you have saved this configuration, recall it. See Figure 5. These are the parameters common to all transmitter characteristics tests. 2. Configure the uplink reference signal. Cell1 > Scheduling > Subframes Config Check the box preceding Configure All Subframes at Once. Select 2-QPSK for Uplink MCS(Imcs-Qm) of SF 0. All of the uplink subframes are automatically configured with this value. The uplink signal is now configured to match Table 25.

65 65 Keysight Performing LTE and LTE-Advanced Measurements Application Note 3. Connect the UE s Rx/Tx antenna to the UXM front panel port TxRx1/Rx1. Connect the UE s Rx (diversity) antenna to the UXM front panel port TxRx2/Rx2. The connections are now configured to match Figure Switch on Cell1. Cell1 > Activate Cell Wait for the Cell1 status to change to ON. See Figure Switch on the UE and establish a connection. Switch on the UE and wait for Cell1 status to change to CONNECTED. See Figure Tell the UE to start transmitting data to the UXM on the uplink. Cell1 > Connect > Start UL MAC Padding An up arrow next to the cell tower as shown in Figure 8 signifies that UL MAC padding has started on Cell1. 7. Configure the EVM equalizer spectrum flatness measurement. Cell1 > Tx Measurements > Modulation Analysis 8. Configure the UE s output power level using the menu key. Power Control Change UE Power Control Mode to All Up Bits. See Figure 9. Back 9. Measure the spectrum flatness of the UE s equalizer. To view the spectral flatness results, use the X-Series measurement application window to scroll to the bottom of the pane. Use the application switch tool to switch between the LTE/LTE-A application and the X-Series measurement application. See Figure 17. In the X-Series measurement application, perform the following action. Scroll to the bottom of the lower right result pane. Use the application switch tool to return to the LTE/LTE-A application. The spectral flatness results are now visible as shown in Figure 41. Figure 41. EVM Equalizer Spectrum Flatness Results using Modulation Analysis The Spectral Flatness Result is shown as PASS or FAIL in the lower right result pane, the Ch1 Error Summary (CC0). Also provided is a result in db for the least difference between the measured result and the specified limit. This is called the Narrowest pass margin.

66 66 Keysight Performing LTE and LTE-Advanced Measurements Application Note While the UXM s pass/fail limits are not configurable for the measurement of EVM spectrum flatness, the measured results are compared to the test requirements defined in Table and Figure Channel Power is shown in dbm in the same set of results. The UE s maximum output power should be approximately 23 dbm/20 MHz in Band 3 (see Table ) as required when testing EVM equalizer spectrum flatness. For a closer view of the lower right pane results, use the X-Series measurement application to zoom in. Use the application switch tool to switch between the LTE/LTE-A application and the X-Series measurement application. See Figure 17. In the X-Series measurement application, perform the following actions. Using a mouse, double-click on the results. Or, use a double tap on the screen. The lower right pane results should now be the only results on the screen. Use the application switch tool to return to the LTE/LTE-A application. Figure 42. EVM Equalizer Spectrum Flatness Results with Zoomed Modulation Analysis To return to the four panes of results from the modulation analysis measurement, use the X-Series measurement application to reset the measurement view. Use the application switch tool to switch between the LTE/LTE-A application and the X-Series measurement application. See Figure 17. In the X-Series measurement application, perform the following actions. Using a mouse, double-click on the results. Or, use a double tap on the screen. The four panes of results should now be visible on the screen. Use the application switch tool to return to the LTE/LTE-A application. EVM equalizer spectrum flatness can also be tested using the UXM s conformance EVM measurement. This measurement provides a list of textual results for all of the requirements specified in using the Global In-Channel TX-Test (see annex E). Thus, all of these results can be analyzed after performing just one measurement on the UXM.

67 67 Keysight Performing LTE and LTE-Advanced Measurements Application Note To view the EVM equalizer spectrum flatness results using the conformance EVM measurement, select this Tx measurement. Back > Conformance EVM To view the spectral flatness results, use the X-Series measurement application window to scroll to the bottom of the pane. Use the application switch tool to switch between the LTE/LTE-A application and the X-Series measurement application. See Figure 17. In the X-Series measurement application, perform the following action. Scroll to the bottom of the lower right result pane. Use the application switch tool to return to the LTE/LTE-A application. The conformance EVM measurement provides more detailed spectral flatness results than those provided with the modulation analysis measurement. The Spectral Flatness Result of Pass or Fail is still provided, along with the Spectral Flatness worst Margin, which is the same as the Narrowest pass margin result provided in the modulation analysis measurement. Conformance EVM also provides the worst-case spectral flatness results by slot and subcarrier, Spectral Flatness worst Slot and Spectral Flatness worst Subcarrier. The four Spectral Flatness results are now visible as shown in Figure 43. Figure 43. EVM Equalizer Spectrum Flatness using Conformance EVM While the UXM s pass/fail limits are not configurable for the measurement of EVM spectrum flatness, the measured results are compared to the test requirements defined in Table and Figure However, the Spectral Flatness Result of Pass or Fail is not correct when using the conformance EVM measurement. This is a known issue with this measurement.

68 68 Keysight Performing LTE and LTE-Advanced Measurements Application Note 10. To repeat for additional test conditions, follow the steps in After all testing is complete, end the connection. Back > Back > Connect > Stop UL MAC Padding Switch off the UE. Back > Cell1 > Deactivate Cell 4.21 Example Test Procedure for Occupied Bandwidth (sc 6.6.1) Description and Parameter Summary Occupied bandwidth shall be tested for all E-UTRA UEs from 3GPP Rel-8 and forward. Occupied bandwidth is tested to determine the range of in-channel spectrum used by a UE during transmission. No downlink reference signal is used. The UE transmits at maximum output power, then the bandwidth containing 99% of the total integrated mean power of transmitted spectrum is measured. A UE that exceeds the occupied channel bandwidth causes interference on adjacent channels thus decreasing the effective coverage area of a network. Test conditions specified are normal conditions (NC) only. Mid-range test frequencies are used. These are specified for each band and channel bandwidth. Refer to Table 53 to find the test frequencies required for each band supported by the UE under test. The test is performed for all channel bandwidths defined in each band supported by the UE. The required test parameters including modulation type and RB allocation for the uplink vary depending on channel bandwidth and E-UTRA band. Refer to Table 59 through Table 64 for parameter values required for each channel bandwidth and band supported by the UE under test Parameters for Example Procedure This example procedure uses FDD E-UTRA Band 3 with a 20 MHz channel bandwidth. Test conditions are normal and mid-range test channels are used. The uplink test configuration uses QPSK modulation. Table 26 shows the uplink test configuration used in the example procedure. This is configuration number 16 from Table 64. Table 26. Occupied Bandwidth UL Test Configuration for Band 3 with 20 MHz Bandwidth FDD Uplink Configuration Ch BW Modulation RB Allocation RB Start Payload Size (bits) MCS (Imcs-Qm) 20 MHz QPSK QPSK The UE is signaled to transmit at maximum power during occupied bandwidth testing. The connection diagram used for this example procedure with the UXM is shown in Figure 1.

69 69 Keysight Performing LTE and LTE-Advanced Measurements Application Note Test Steps for Example Procedure 1. Change the UXM parameters described in Table 5. Or, if you have saved this configuration, recall it. See Figure 5. These are the parameters common to all transmitter characteristics tests. 2. Configure the uplink reference signal. Cell1 > Scheduling > Subframes Config Check the box preceding Configure All Subframes at Once. Select 2-QPSK for Uplink MCS(Imcs-Qm) of SF 0. All of the uplink subframes are automatically configured with these values. The uplink signal is now configured to match Table Connect the UE s Rx/Tx antenna to the UXM front panel port TxRx1/Rx1. Connect the UE s Rx (diversity) antenna to the UXM front panel port TxRx2/Rx2. The connections are now configured to match Figure Switch on Cell1. Cell1 > Activate Cell Wait for the Cell1 status to change to ON. See Figure Switch on the UE and establish a connection. Switch on the UE and wait for Cell1 status to change to CONNECTED. See Figure Tell the UE to start transmitting data to the UXM on the UL. Cell1 > Connect > Start UL MAC Padding An up arrow next to the cell tower as shown in Figure 8 signifies that UL MAC padding has started on Cell1. 7. Configure the occupied bandwidth measurement. Cell1 > Tx Measurements > Occupied BW 8. Configure the UE s output power level using the menu key. Power Control Change UE Power Control Mode to All Up Bits. See Figure 9. Back 9. Measure the UE s occupied bandwidth. The occupied bandwidth is shown below the graph in MHz. Also provided is the total power. Both results are measured as defined in sub-clause An indication of whether the UE has passed or failed is shown above the graph. This determination is made by comparing the Occupied Bandwidth result against the requirements in Table For a 20 MHz channel bandwidth, the occupied bandwidth must be 20 MHz. Total Power is shown below the graph in dbm. The UE s maximum output power should be approximately 23 dbm/20 MHz in Band 3 (see Table ) as required when testing occupied bandwidth. An example result is shown in Figure 44.

70 70 Keysight Performing LTE and LTE-Advanced Measurements Application Note Figure 44. Occupied Bandwidth Results 10. To repeat for additional test conditions, follow the steps in After all testing is complete, end the connection. Back > Back > Connect > Stop UL MAC Padding Switch off the UE. Back > Cell1 > Deactivate Cell 4.22 Example Test Procedure for Spectrum Emission Mask (sc ) Description and Parameter Summary Spectrum emission mask shall be tested for all E-UTRA UEs from 3GPP Rel-8 and forward. Spectrum emission mask is tested to determine the extent of out-of-channel spectral emissions transmitted by the UE within 25 MHz of the edge of the channel bandwidth. No downlink reference signal is used. The UE transmits at maximum output power, then the UE s spectral emissions at specific out-of-channel frequencies are measured. A UE that transmits excessive spectral emissions outside its channel bandwidth causes interference on other channels thus decreasing the effective coverage area of a network. Test conditions specified are normal conditions (NC) only. Low-, mid- and high-range test frequencies are used. These are specified for each band and channel bandwidth. Refer to Table 53 to find the test frequencies required for each band supported by the UE under test. The test is performed using the lowest and highest channel bandwidths defined in each band supported by the UE, along with 5 MHz and 10 MHz channel bandwidths. The required test parameters including modulation type and RB allocation for the uplink vary depending on channel bandwidth and E-UTRA band. Refer to Table 59 through Table 64 for parameter values required for each channel bandwidth and band supported by the UE under test.

71 71 Keysight Performing LTE and LTE-Advanced Measurements Application Note Parameters for Example Procedure This example procedure uses FDD E-UTRA Band 3 with a 20 MHz channel bandwidth. Test conditions are normal and mid-range test channels are used. The uplink test configurations use QPSK and 16QAM modulation. Table 27 shows the uplink test configurations used in the example procedure. These are configuration numbers 9, 11, 16, 18, 19 and 20 from Table 64. Table 27. Spectrum Emission Mask UL Test Configurations for Band 3 with 20 MHz Bandwidth FDD Uplink Configuration Ch BW Modulation RB Allocation RB Start Payload Size (bits) MCS (Imcs-Qm) 20 MHz QPSK QPSK 20 MHz QPSK QPSK 20 MHz QPSK QPSK 20 MHz 16QAM QAM 20 MHz 16QAM QAM 20 MHz 16QAM QAM The UE s MPR as measured using sub-clause is applied when testing spectrum emission mask (with the UE transmitting at maximum output power). This is stated in Note 2 of Table Note 3 below Table requires each partial RB allocation to be tested starting at zero and max + 1 RB allocation. For 20 MHz channel bandwidth, the partial RB allocation is 18. So, each test condition using RB allocation 18 (with QPSK or with 16QAM) must be tested twice, once with the RB allocation starting at 0 and once with the RB allocation starting at = 82. The 16QAM test condition using full RB allocation with 20 MHz channel bandwidth shall only be tested for UE categories 2, as stated in Note 4 of Table The UE is signaled to transmit at maximum power during spectrum emission mask testing. The connection diagram used for this example procedure with the UXM is shown in Figure Test Steps for Example Procedure 1. Change the UXM parameters described in Table 5. Or, if you have saved this configuration, recall it. See Figure 5. These are the parameters common to all transmitter characteristics tests. 2. Configure the uplink reference signal. Cell1 > Scheduling > Subframes Config Check the box preceding Configure All Subframes at Once. Select 2-QPSK for Uplink MCS(Imcs-Qm) of SF 0. All of the uplink subframes are automatically configured with these values. The uplink signal is now configured to match the first row of Table Connect the UE s Rx/Tx antenna to the UXM front panel port TxRx1/Rx1. Connect the UE s Rx (diversity) antenna to the UXM front panel port TxRx2/Rx2. The connections are now configured to match Figure Switch on Cell1. Cell1 > Activate Cell Wait for the Cell1 status to change to ON. See Figure Switch on the UE and establish a connection. Switch on the UE and wait for Cell1 status to change to CONNECTED. See Figure 7.

72 72 Keysight Performing LTE and LTE-Advanced Measurements Application Note 6. Tell the UE to start transmitting data to the UXM on the uplink. Cell1 > Start UL MAC Padding An up arrow next to the cell tower as shown in Figure 8 signifies that UL MAC padding has started on Cell1. 7. Configure the spectrum emission mask measurement. Cell1 > Tx Measurements > Spectrum Emission Mask 8. Configure the UE s output power level using the menu key. Power Control Change UE Power Control Mode to All Up Bits. See Figure 9. Back 9. Measure the UE s spectrum emission mask. Spectrum emission mask results for each offset frequency range (see Table ) are shown below the graph in dbm. The graph is an excellent summary of the UE s performance and the textual results include more than the required information to provide hints for troubleshooting failures. The start and stop frequencies and integrating bandwidth used to make the measurements in each offset frequency range are shown. A result in dbm is provided for both the lower and upper edges of the channel as required in Note 3 of Table These two results are compared with required lower and upper limits from the same table to generate a passing or failing result. This result is shown above the graph. Finally, the results below the graph also include the frequency in Hz at which each result was measured; in other words, the worst-case performance within the offset frequency range. Verify that the UE is transmitting at its maximum output power level using the Ref Carrier Power result shown in dbm below the graph. The UE s maximum output power should be approximately 23 dbm/20 MHz in Band 3 (see Table and Table ). Figure 45 shows example results for spectrum emission mask measured by the UXM. Figure 45. Spectrum Emission Mask Results

73 73 Keysight Performing LTE and LTE-Advanced Measurements Application Note 10. To repeat for additional test conditions, follow the steps in After all testing is complete, end the connection. Back > Back > Connect > Stop UL MAC Padding Switch off the UE. Back > Cell1 > Deactivate Cell 4.23 Example Test Procedure for Additional Spectrum Emission Mask (sc ) Description and Parameter Summary Additional spectrum emission mask shall be tested for all E-UTRA UEs from 3GPP Rel-8 and forward for which additional spurious testing using specific network-signaled values is required (see Table ). Additional spectrum emission mask is tested to determine the extent of out-of-channel spectral emissions transmitted by the UE within 25 MHz of the edge of the channel bandwidth. No downlink reference signal is used. The network transmits the network-signaled value to configure the environment for testing additional spectrum emissions. The UE transmits at maximum output power, then the UE s spectral emissions at specific out-of-channel frequencies are measured. A UE that transmits excessive spectral emissions outside its channel bandwidth causes interference on other channels thus decreasing the effective coverage area of a network. Test conditions specified are normal conditions (NC) only. Specific test frequencies are used as defined in sub-clause These are defined for each network-signaled value, E-UTRA band and channel bandwidth. When low, mid- or high-range test frequencies are required, refer to Table 53 to find the test frequencies required for each band supported by the UE under test. The test is performed using specific channel bandwidths defined for each networksignaled value based on the E-UTRA bands supported by the UE (see sub-clause ). The required test parameters including modulation type and RB allocation for the uplink vary depending on channel bandwidth, E-UTRA band and network-signaled value. Refer to sub-clause for parameter values required for each channel bandwidth and network-signaled value as needed for the UE under test Parameters for Example Procedure Most example procedures in this application note use E-UTRA Band 3. However, this band does not require additional spectrum emission mask testing (see Table ). So, this example procedure uses FDD E-UTRA Band 13 with a 10 MHz channel bandwidth and network-signaled value of NS_07. Test conditions are normal and mid-range test channels are used. The uplink test configurations use QPSK and 16QAM. Table 28 shows the uplink test configurations used in the example procedure. These configurations are defined in Table

74 74 Keysight Performing LTE and LTE-Advanced Measurements Application Note Table 28. Additional Spectrum Emission Mask UL Test Configurations for Band 13 with 10 MHz Bandwidth Test FDD Uplink Configuration Ch BW Number Modulation RB Allocation RB Start Payload Size (bits) MCS (Imcs-Qm) 1 10 MHz QPSK QPSK 2 10 MHz QPSK QPSK 3 10 MHz QPSK QPSK 4 10 MHz QPSK QSPK 5 10 MHz QPSK QPSK 6 10 MHz 16QAM QAM 7 10 MHz QPSK QPSK 8 10 MHz QPSK QPSK 9 10 MHz 16QAM QAM MHz QPSK QPSK MHz 16QAM QAM MHz QPSK QPSK MHz QPSK QPSK MHz QPSK QPSK MHz QPSK QPSK MHz 16QAM QAM The 16QAM test condition using full RB allocation with 10 MHz channel bandwidth shall only be tested for UE categories 2, as stated in Note 1 below Table The UE is signaled to transmit at maximum power during additional spectrum emission mask testing. The connection diagram used for this example procedure with the UXM is shown in Figure Test Steps for Example Procedure 1. Change the UXM parameters described in Table 5. Or, if you have saved this configuration, recall it. See Figure 5. These are the parameters common to all transmitter characteristics tests. 2. Configure the E-UTRA band and channel bandwidth. Cell1 > Cell > Config Enter 13 for Band. Select 10 MHz for Downlink Bandwidth. The Uplink Bandwidth and EARFCN values are automatically configured to 10 MHz and mid-range channels. 3. Configure the network-signaled value. Cell1 > Power Control > UE Power Control Enter 7 for Spectrum Emission. This configuration sends NS_07 on SIB2 to the UE during connection setup as required for this test configuration. 4. Configure the uplink reference signal. Cell1 > Scheduling > Subframes Config Check the box preceding Configure All Subframes at Once. Select 6-QPSK for Uplink MCS(Imcs-Qm) of SF 0. All of the uplink subframes are automatically configured with this value. The uplink signal is now configured to match Test Number 14 in Table Connect the UE s Rx/Tx antenna to the UXM front panel port TxRx1/Rx1. Connect the UE s Rx (diversity) antenna to the UXM front panel port TxRx2/Rx2. The connections are now configured to match Figure 1.

75 75 Keysight Performing LTE and LTE-Advanced Measurements Application Note 6. Switch on Cell1. Cell1 > Activate Cell Wait for the Cell1 status to change to ON. See Figure Switch on the UE and establish a connection. Switch on the UE and wait for Cell1 status to change to CONNECTED. See Figure Tell the UE to start transmitting data to the UXM on the uplink. Cell1 > Start UL MAC Padding An up arrow next to the cell tower as shown in Figure 8 signifies that UL MAC padding has started on Cell1. 9. Configure the additional spectrum emission mask measurement. Cell1 > Tx Measurements > Spectrum Emission Mask 10. Configure the UE s output power level using the menu key. Power Control Change UE Power Control Mode to All Up Bits. See Figure 9. Back 11. Measure the UE s additional spectrum emission mask. Additional spectrum emission mask results for each offset frequency range (see Table ) are shown below the graph in dbm. The graph is an excellent summary of the UE s performance and the textual results include more than the required information to provide hints for troubleshooting failures. The start and stop frequencies and integrating bandwidth used to make the measurements in each offset frequency range are shown. A result in dbm is provided for both the lower and upper edges of the channel as required in Note 3 of Table These two results are compared with required lower and upper limits from the same table to generate a passing or failing result. This result is shown above the graph. Finally, the results below the graph also include the frequency in Hz at which each result was measured; in other words, the worst-case performance within the offset frequency range. Verify that the UE is transmitting at its maximum output power level using the Ref Carrier Power result shown in dbm below the graph. The UE s maximum output power should be between 3.3 and 25.7 dbm/10 MHz in Band 13 for these test conditions (see Table ). Figure 46 shows example results for additional spectrum emission mask measured by the UXM.

76 76 Keysight Performing LTE and LTE-Advanced Measurements Application Note Figure 46. Additional Spectrum Emission Mask Results 12. To repeat for additional test conditions, follow the steps in After all testing is complete, end the connection. Back > Back > Connect > Stop UL MAC Padding Switch off the UE. Back > Cell1 > Deactivate Cell 4.24 Example Test Procedure for Adjacent Channel Leakage Power Ratio (sc ) Description and Parameter Summary Adjacent channel leakage power ratio (ACLR) shall be tested for all E-UTRA UEs from 3GPP Rel-8 and forward. ACLR is tested to verify signals transmitted from the UE in the E-UTRA and UTRA channels adjacent to the carrier are acceptable. No downlink reference signal is used. Four ACLR measurement bandwidths are used depending on the UE s support of E-UTRA FDD, E-UTRA TDD, UTRA FDD and UTRA TDD. The UE transmits at maximum output power, then the UE s ACLR is measured. A UE with excessive ACLR causes interference to adjacent channels. Test conditions specified are normal conditions (NC) along with low and high temperature (TL and TH) and low and high voltage (VL and VH) combinations. Low-, mid- and high-range test frequencies are used. These are specified for each band and channel bandwidth. Refer to Table 53 to find the test frequencies required for each band supported by the UE under test.

77 77 Keysight Performing LTE and LTE-Advanced Measurements Application Note The test is performed using the lowest and highest channel bandwidths defined in each band supported by the UE, along with 5 MHz and 10 MHz channel bandwidths. The required test parameters including modulation type and RB allocation for the uplink vary depending on channel bandwidth and E-UTRA band. Refer to Table 59 through Table 64 for parameter values required for each channel bandwidth and band supported by the UE under test Parameters for Example Procedure This example procedure uses FDD E-UTRA Band 3 with a 20 MHz channel bandwidth. Test conditions are normal and mid-range test channels are used. The uplink test configurations use QPSK and 16QAM modulation. Table 29 shows the uplink test configurations used in the example procedure. These are configuration numbers 9, 11, 16, 18, 19 and 20 from Table 64. Table 29. ACLR UL Test Configurations for Band 3 with 20 MHz Bandwidth FDD Uplink Configuration Ch BW Modulation RB Allocation RB Start Payload Size (bits) MCS (Imcs-Qm) 20 MHz QPSK QPSK 20 MHz QPSK QPSK 20 MHz QPSK QPSK 20 MHz 16QAM QAM 20 MHz 16QAM QAM 20 MHz 16QAM QAM Note 2 below Table requires each partial RB allocation to be tested starting at zero and max + 1 RB allocation. For 20 MHz channel bandwidth, the partial RB allocation is 18. So, each test condition using RB allocation 18 (with QPSK or with 16QAM) must be tested twice, once with the RB allocation starting at 0 and once with the RB allocation starting at = 82. The 16QAM test condition using full RB allocation with 20 MHz channel bandwidth shall only be tested for UE categories 2, as stated in Note 3 of Table The UE is signaled to transmit at maximum power during ACLR testing. The connection diagram used for this example procedure with the UXM is shown in Figure Test Steps for Example Procedure 1. Change the UXM parameters described in Table 5. Or, if you have saved this configuration, recall it. See Figure 5. These are the parameters common to all transmitter characteristics tests. 2. Configure the uplink reference signal. Cell1 > Scheduling > Subframes Config Check the box preceding Configure All Subframes at Once. Select 2-QPSK for Uplink MCS(Imcs-Qm) of SF 0. All of the uplink subframes are automatically configured with these values. The uplink signal is now configured to match the first row of Table Connect the UE s Rx/Tx antenna to the UXM front panel port TxRx1/Rx1. Connect the UE s Rx (diversity) antenna to the UXM front panel port TxRx2/Rx2. The connections are now configured to match Figure 1.

78 78 Keysight Performing LTE and LTE-Advanced Measurements Application Note 4. Switch on Cell1. Cell1 > Activate Cell Wait for the Cell1 status to change to ON. See Figure Switch on the UE and establish a connection. Switch on the UE and wait for Cell1 status to change to CONNECTED. See Figure Tell the UE to start transmitting data to the UXM on the uplink. Cell1 > Start UL MAC Padding An up arrow next to the cell tower as shown in Figure 8 signifies that UL MAC padding has started on Cell1. 7. Configure the ACLR measurement. Cell1 > Tx Measurements > ACP 8. Configure the UE s output power level using the menu key. Power Control Change UE Power Control Mode to All Up Bits. See Figure 9. Back 9. Measure the UE s ACLR. ACLR results for E-UTRA are shown below the graph in dbm and in dbc relative to the total carrier power. The Total Carrier Power result is also provided below the graph. The first adjacent channel is measured 20 MHz from the carrier using a measurement bandwidth of 18 MHz as defined in Table An indication of UE pass or fail is also provided above the graph. The limits used to determine the pass or fail result are defined in subclause for absolute power and in Table for relative power. Verify that the UE is transmitting at its maximum output power level using the Total Carrier Power result shown below the graph in dbm. The UE s maximum output power should be approximately 23 dbm/20 MHz in Band 3 (see Table ). Figure 47 shows the E-UTRA results. Figure 47. ACLR E-UTRA Results

79 79 Keysight Performing LTE and LTE-Advanced Measurements Application Note If the UE supports UTRA as well as E-UTRA, then the UTRA first and second adjacent channels must also be measured. For E-UTRA FDD co-existing with UTRA FDD, the measurement bandwidth is 3.84 MHz and the frequency offsets are ±12.5 MHz and ±17.5 MHz as defined in Table For E-UTRA TDD co-existing with UTRA TDD, the measurement bandwidth is 1.28 MHz using the same UTRA frequency offsets as for FDD. The UXM can be used to measure the UTRA offsets. The X-Series measurement application must be configured manually to view the additional offset frequency results. Use the application switch tool to switch between the LTE/LTE-A application and the X-Series measurement application. See Figure 17. The X-Series application windows should now be visible as shown in Figure 48. Figure 48. X-Series Measurement Application SA Meas Setup > Outer Offset/limits > Select Outer Offset > Offset C Offset Frequency Enter 12.5 MHz using the keypad and MHz menu key. Integ BW Enter 3.84 MHz using the keypad and MHz menu key, Limits > Ref Limit (Car) Enter 32.2 on the keypad and press db. This configures the limit to check for pass or fail to match Table Return More > Method > RRC Weighted (Alpha 0.22) Return Return Repeat this process for the 17.5 MHz offset frequency using Offset D, 3.84 MHz integ BW and db for the limit.

80 80 Keysight Performing LTE and LTE-Advanced Measurements Application Note The E-UTRA frequency offset results can be switched off as follows. SA Meas Setup > Outer Offset/Limits > Select Outer Offset > Offset A Press Offset Frequency twice. This switches off the E-UTRA 20 MHz offset frequency results. Repeat this process for Offset B. Use the application switch tool to return to the LTE/LTE-A application. Do not press the Re-Sync with BSE button. The ACLR results for UTRA are now shown below the graph along with the pass or fail indication above the graph as shown in Figure 49. Figure 49. ACLR UTRA Results To view all of the textual results below the graph, maximize the results window. Use the application switch tool to switch between the LTE/LTE-A application and the X-Series measurement application. See Figure 17. Maximize the window containing the ACLR results. Use the application switch tool to return to the LTE/LTE-A application. Figure 50 shows the modified results view.

81 81 Keysight Performing LTE and LTE-Advanced Measurements Application Note Figure 50. ACLR Larger Results Window To return the measurement results to the default window size, use the application switch tool to switch between the LTE/LTE-A application and the X-Series measurement application. See Figure 17. The results view is automatically returned to its original size. Use the application switch tool to return to the LTE/LTE-A application. To return the measurement results to the E-UTRA default, use the application switch tool to switch between the LTE/LTE-A application and the X-Series measurement application. See Figure 17. Press Re-Sync with BSE. Use the application switch tool to return to the LTE/LTE-A application. 10. To repeat for additional test conditions, follow the steps in After all testing is complete, end the connection. Back > Back > Connect > Stop UL MAC Padding Switch off the UE. Back > Cell1 > Deactivate Cell

82 82 Keysight Performing LTE and LTE-Advanced Measurements Application Note 5 Receiver Characteristics without Carrier Aggregation 5.1 Overview of Receiver Characteristics without CA For receiver characteristics tests that are part of 3GPP Rel-8, only one network cell is required. No MIMO is used and no power boosting is required. Orthogonal channel noise generation (OCNG) with configuration OP.1 is used to maintain a constant power level to the UE. OCNG configurations are defined in annex A.5. The receiver characteristics also require specific modulation and coding configurations in the uplink and downlink. These configurations vary depending on E-UTRA band and channel bandwidth. Table 65 and Table 66 can be used to quickly determine which E-UTRA bands, test channels, modulation and RB allocations need to be tested for each channel bandwidth. The configuration numbers in the first column of the tables are referenced in the example test procedures described in this application note. 5.2 Common Parameters for Receiver Characteristics without CA Initial parameter values for all receiver characteristics are described in sub-clause Initial conditions for DL signals are described in annexes A.3.2, C.0, C.1, C.2 and C.3.1. For UL signals, initial conditions are described in annexes A.2, H.1 and H.3.1. Propagation conditions are defined in annex B.0. Most of these initial values are configured by default in the UXM. For example, the UXM s receiver is automatically configured to use the optimum range for the UE s expected signal level. The few parameters that must be modified to align with 3GPP requirements are shown in Table 30. These parameter value changes enable use of the example test procedures in this application note. Table 30. UXM Parameter Changes for Receiver Characteristics without CA UXM Parameter Changes from Desired Value UXM Default Value UXM Front Panel Navigation Default Values Full Preset Default Utility > Preset > Full Preset Cell2 Cell Power Off On Cell2 > Cell > Config Cell1 Band 3 1 Cell1 > Cell > Config Cell1 Downlink Bandwidth 20 MHz 10 MHz Cell1 > Cell > Config Cell1 DL Max Transmission 5 4 Cell1 > MAC/RLC/PDCP > HARQ Cell1 UL Max Transmission 1 4 Cell1 > MAC/RLC/PDCP > HARQ Cell1 OCNG On Off Cell1 > System > Impairments To save these parameter values for quicker setup, use a save register. Utility > Save Highlight the folder where you would like to save the register file. Enter a File Name for the register. See Figure 4. Save Register The parameter values have now been saved. To use these values later, recall the register. Utility > Recall Highlight the Name of the register to recall. See Figure 5. Recall Register The UXM parameter values are modified to match those in the recalled register.

83 83 Keysight Performing LTE and LTE-Advanced Measurements Application Note 5.3 Additional Test Conditions for Receiver Characteristics without CA The example procedures in this section of the application note are useful to verify UE receiver performance without CA at one set of test conditions from However, measurement over additional test conditions is required. The following summarizes the recommended order, references and procedures for measurement of additional test conditions using the UXM. 1. To measure additional DL and UL modulation and allocation conditions, use the tables in each example test procedure to reconfigure the DL and/or UL scheduling on the Scheduling > Subframes Config tab. Then, repeat the example test procedure. The original connection established during the example test procedure is maintained. 2. To measure additional test channels (e.g., low and high) within the same band used in the example procedures, modify Downlink EARFCN on the Cell > Config tab as shown in Table 53 for the band used in the example procedure. Uplink EARFCN changes automatically once Downlink EARFCN is entered. Then, repeat the example test procedure. The original connection established during the example test procedure is maintained. 3. To measure additional bands supported by the UE, change the band using the Handover > Blind Handover > PCC Blind Handover menu key. Remember to enter Cell ID and DL EARFCN as well as Frequency Band before starting the handover. Use Table 57 to determine which measurement configurations to test. Use Table 65 and Table 66 to determine the required test configurations for the UE. Then, modify the UE s DL and UL modulation and allocation on the Scheduling > Subframes Config tab and repeat the example test procedure. The original connection established during the example test procedure is maintained by using the handover. If needed, measure additional modulations, allocations and test channels for each band as described previously. 4. To measure additional channel bandwidths for each band supported by the UE, end the connection established during the example test procedure and establish a new one with the modified channel bandwidth. After deactivating Cell1 using the Deactivate Cell menu key, select Downlink Bandwidth on the Cell > Config tab. Uplink Bandwidth changes automatically once Downlink Bandwidth is selected. Remember to enter Band and Downlink EARFCN as well. Use Table 57 to determine which measurement configurations to test. Use Table 65 and Table 66 to determine the required test configurations for the UE. Then, modify the UE s DL and UL modulation and allocation on the Scheduling > Subframes Config tab and repeat the example test procedure. If needed, measure additional modulations, allocations, test channels and bands as described previously. 5. To measure TDD test configurations, end the FDD connection established during the example test procedure and establish a new one using TDD. After deactivating Cell1 using the Deactivate Cell menu key, select TDD for Duplex Mode on the Cell > Config tab. Remember to enter Band, Downlink EARFCN and Downlink Bandwidth as well. Refer to to determine the required TDD test conditions for the UE. Then, modify the UE s DL and UL modulation and allocation on the Scheduling > Subframes tab and repeat the example test procedure. If needed, measure additional modulations, allocations, test channels and bands as described previously.

84 84 Keysight Performing LTE and LTE-Advanced Measurements Application Note 5.4 Example Test Procedure for Reference Sensitivity Level (c 7.3) Description and Parameter Summary Receiver sensitivity level shall be performed for all E-UTRA UEs from 3GPP Rel-8 and forward. Receiver sensitivity testing is performed to verify the UE s ability to receive data with a specified throughput. A reference measurement channel is used at a low signal level to the UE. A UE that cannot meet the requirements decreases the effective coverage area of a network. Test conditions specified are normal conditions (NC) along with low and high temperature (TL and TH) and low and high voltage (VL and VH) combinations. Low-, mid- and high-range test frequencies are used. These are specified for each band and channel bandwidth. Refer to Table 53 to find the test frequencies required for each band supported by the UE under test. The test is performed using the lowest and highest channel bandwidths defined in each band supported by the UE, and a 5 MHz channel bandwidth. The required test parameters including modulation type and RB allocation for the downlink and uplink vary depending on channel bandwidth and E-UTRA band. Refer to Table 65 and Table 66 for parameter values required for each channel bandwidth and band supported by the UE under test Parameters for Example Procedure This example procedure uses FDD E-UTRA Band 3 with a 20 MHz channel bandwidth. Test conditions are normal and mid-range test channels are used. The downlink test configuration uses full RB allocation and QPSK modulation as shown in Table Table 31 shows the downlink test configuration used in the example procedure. This is configuration number 14 from Table 65. Table 31. Receiver Sensitivity DL Test Configuration for Band 3 with 20 MHz Bandwidth FDD Downlink Configuration Ch BW Payload Size (bits) MCS (Imcs-Qm) Modulation RB Allocation RB Start SF 0-4, 6-9 SF 5 SF 0-4, 6-9 SF 5 20 MHz QPSK n/a 5-QPSK Off Even though Table lists several uplink RB allocations for a 20 MHz channel bandwidth with FDD, Note 2 below the table refers to Table where only one uplink RB allocation is valid for E-UTRA Band 3. Note 2 also specifies the uplink RB allocation should be located as close to the downlink as possible. Since the downlink channels are higher in frequency than the uplink, the uplink RB Start value should position the 50 uplink RB allocated blocks at the high end of the uplink transmission bandwidth and, therefore, RB Start should be 50 for these test conditions. The uplink test configuration uses QPSK modulation. Table 32 shows the uplink test configuration used in the example procedure. This is configuration number 39 from Table 66. Table 32. Receiver Sensitivity UL Test Configuration for Band 3 with 20 MHz Bandwidth FDD Uplink Configuration Ch BW Modulation RB Allocation RB Start Payload Size (bits) MCS (Imcs-Qm) 20 MHz QPSK QPSK

85 85 Keysight Performing LTE and LTE-Advanced Measurements Application Note Receiver sensitivity is performed by transmitting low signal levels to the UE. The signal level (REFSENS) values are defined in Table for each band and channel bandwidth. The REFSENS value for Band 3 with a 20 MHz channel bandwidth is shown in Table 33. Table 33. REFSENS Value for Band 3 with 20 MHz Bandwidth E-UTRA Band 20 MHz Duplex Mode dbm/20 MHz FDD Cell power levels on the UXM can be configured in dbm/15 khz and also in dbm per channel bandwidth. So, the REFSENS value is used directly on the UXM with no need for additional calculations. The UE is signaled to transmit at maximum power during receiver sensitivity testing. The connection diagram used for this example procedure with the UXM is shown in Figure Test Steps for Example Procedure 1. Change the UXM parameters described in Table 30. Or, if you have saved this configuration, recall it. See Figure 5. These are the parameters common to all receiver characteristics tests without DL CA. 2. Configure the downlink and uplink reference signals. Cell1 > Scheduling > Subframes Config Uncheck DL SF Alloc of SF 5. Check the box preceding Configure All Subframes at Once. Select 6-QPSK for Uplink MCS(Imcs-Qm) of SF 0. Enter 50 for both RB and Start of SF 0. All of the uplink subframes are automatically configured with these values. The downlink and uplink signals are now configured to match Table 31 and Table Connect the UE s Rx/Tx antenna to the UXM front panel port TxRx1/Rx1. Connect the UE s Rx (diversity) antenna to the UXM front panel port TxRx2/Rx2. The connections are now configured to match Figure Switch on Cell1. Cell1 > Activate Cell Wait for the Cell1 status to change to ON. See Figure Switch on the UE and establish a connection. Switch on the UE and wait for Cell1 status to change to CONNECTED. See Figure Start transmitting data from the UXM on the downlink. Cell1 > Connect > Start DL MAC Padding A down arrow next to the cell tower as shown in Figure 23 signifies that DL MAC padding has started on Cell1. 7. Tell the UE to start transmitting data to the UXM on the uplink. Start UL MAC Padding An up arrow joins the down arrow next to the cell tower as shown in Figure 24 to signify that both DL and UL MAC padding have started on Cell1. 8. Configure the throughput measurement. Cell1 > BLER/Tput > Measurement Setup Change the Measurement Length to 600 and the Measurement Mode to Single. Back Cell1 > BLER/Tput > DL OTA 9. Configure the downlink signal level to the REFSENS value using the menu key. Power Control Change the Cell Power (Channel BW) to dbm/20 MHz. See Figure 25. This is consistent with Table 33.

86 86 Keysight Performing LTE and LTE-Advanced Measurements Application Note 10. Configure the UE s output power level. Change UE Power Control Mode to All Up Bits. See Figure 9. Back 11. If desired, verify that the UE is transmitting at its maximum output power level. Back > Tx Measurements > Channel Power The UE s maximum output power should be approximately 23 dbm/20 MHz in Band 3 (see Table ). 12. Measure the average throughput. Cell1 > BLER/Tput > Start Average throughput is shown in kbps for PCC CW0 (the primary component carrier code word 0). For these test conditions, the average throughput must be 7489 kbps for the UE to pass this test. Maximum throughput for FDD receiver requirements is defined in Table A as 7884 kbps. Statistical requirements define a minimum number of transport blocks, 67, over which to measure throughput assuming no errors (no NACKs and no statdtx). As the number of errors increase, so must the number of transport blocks measured. This relationship is defined in Table G The minimum Measurement Length for BLER/Tput on the UXM is currently 600 DL subframes which is equivalent to 600 transport blocks at maximum throughput. View the number of DL NACKs and statdtx recorded during the throughput measurement in the DL HARQ Feedback table under PCC CW0 as shown in Figure 51. Figure 51. Receiver Sensitivity Results 13. To repeat for additional test conditions, follow the steps in section After all testing is complete, end the connection. Back > Back > Connect > Stop UL MAC Padding Stop DL MAC Padding Switch off the UE. Back > Cell1 > Deactivate Cell

87 87 Keysight Performing LTE and LTE-Advanced Measurements Application Note 5.5 Example Test Procedure for Maximum Input Level (c 7.4) Description and Parameter Summary Maximum input level shall be performed for all E-UTRA UEs from 3GPP Rel-8 and forward. Maximum input level testing is performed to verify the UE s ability to receive data with a specified throughput. A reference measurement channel is used at a high signal level to the UE. A UE that cannot meet the requirements decreases the effective coverage area of a network especially near an e-nodeb. Test conditions specified are normal conditions (NC) only. A mid-range test frequency is used. This is specified for each band and channel bandwidth. Refer to Table 53 to find the test frequencies required for each band supported by the UE under test. The test is performed using the lowest and highest channel bandwidths defined in each band supported by the UE, and a 5 MHz channel bandwidth. The required test parameters including modulation type and RB allocation for the downlink and uplink vary depending on channel bandwidth, E-UTRA band and UE category. Refer to Table 65 and Table 66 for the parameter values required for each channel bandwidth and band supported by the UE under test Parameters for Example Procedure This example procedure uses FDD E-UTRA Band 3 with a 20 MHz channel bandwidth. Test conditions are normal and mid-range test channels are used. A UE category > 2 is assumed. The downlink test configuration uses full RB allocation and 64-QAM modulation as shown in Table Table 34 shows the downlink test configuration used in the example procedure. This is configuration number 17 from Table 65. Table 34. Maximum Input Level DL Test Configuration for Band 3 with 20 MHz Bandwidth FDD Downlink Configuration Ch BW Payload Size (bits) MCS (Imcs-Qm) Modulation RB Allocation RB Start SF 0-4, 6-9 SF 5 SF 0-4, 6-9 SF 5 20 MHz 64-QAM n/a 26-64QAM Off For a UE category of 2, use configuration number 16 from Table 65. For a UE category of 1, use configuration number 15 from Table 65. Even though Table lists several uplink RB allocations for a 20 MHz channel bandwidth with FDD, Note 2 below the table refers to Table where only one uplink RB allocation is valid for E-UTRA Band 3. Note 2 also specifies that the uplink RB allocation should be located as close to the downlink as possible. Since the downlink channels are higher in frequency than the uplink, the uplink RB Start should position the 50 uplink RB allocated blocks at the high end of the uplink transmission bandwidth and, therefore, RB Start should be 50 for these test conditions. The uplink test configuration uses QPSK modulation. Table 35 shows the uplink test configuration used in the example procedure. This is configuration number 38 from Table 66. This configuration applies for all UE categories.

88 88 Keysight Performing LTE and LTE-Advanced Measurements Application Note Table 35. Maximum Input Level UL Test Configuration for Band 3 with 20 MHz Bandwidth FDD Uplink Configuration Ch BW Modulation RB Allocation RB Start Payload Size (bits) MCS (Imcs-Qm) 20 MHz QPSK QPSK Maximum input level is measured by transmitting high signal levels to the UE. The signal levels are defined in Table for each band and channel bandwidth. The downlink signal value for Band 3 with a 20 MHz channel bandwidth is shown in Table 36. Table 36. Downlink Signal Level for Band 3 with 20 MHz Bandwidth E-UTRA Band 20 MHz Duplex Mode dbm/20 MHz FDD Cell power levels on the UXM can be configured in dbm/15 khz and also in dbm per channel bandwidth. So, the REFSENS value is used directly on the UXM with no need for additional calculations. The UE is signaled to transmit at 4 db below maximum power during maximum input level testing as described in Note 1 in Table of The connection diagram used for this example procedure with the UXM is shown in Figure Test Steps for Example Procedure 1. Change the UXM parameters described in Table 30. Or, if you have saved this configuration, recall it. See Figure 5. These are the parameters common to all receiver characteristics tests without DL CA. 2. Configure the downlink and uplink reference signals. Cell1 > Scheduling > Subframes Config Check the box preceding Configure All Subframes at Once. Select 26-64QAM for Downlink MCS(Imcs-Qm) of SF 0. All of the downlink subframes are automatically configured with this value. Select 6-QPSK for Uplink MCS(Imcs-Qm) of SF 0. Enter 50 for both RB and Start of SF 0. All of the uplink subframes are automatically configured with these values. Uncheck the box preceding Configure All Subframes at Once. Uncheck the DL SF Alloc of SF 5. The downlink and uplink signals are now configured to match Table 34 and Table Connect the UE s Rx/Tx antenna to the UXM front panel port TxRx1/Rx1. Connect the UE s Rx (diversity) antenna to the UXM front panel port TxRx2/Rx2. The connections are now configured to match Figure Switch on Cell 1. Cell1 > Activate Cell Wait for the Cell1 status to change to ON. See Figure Switch on the UE and establish a connection. Switch on the UE and wait for Cell1 status to change to CONNECTED. See Figure Start transmitting data from the UXM on the downlink. Cell1 > Connect > Start DL MAC Padding A down arrow next to the cell tower as shown in Figure 23 signifies that DL MAC padding has started on Cell1. 7. Tell the UE to start transmitting data to the UXM on the uplink. Start UL MAC Padding An up arrow joins the down arrow next to the cell tower as shown in Figure 24 to signify that both DL and UL MAC padding have started on Cell1.

89 89 Keysight Performing LTE and LTE-Advanced Measurements Application Note 8. Configure the throughput measurement. Cell1 > BLER/Tput > Measurement Setup Change the Measurement Length to 600 and the Measurement Mode to Single. Back Cell1 > BLER/Tput > DL OTA 9. Configure the downlink signal level to the required high value for maximum input level testing using the menu key. Power Control Change the Cell Power (Channel BW) to dbm/20 MHz. See Figure 25. This is consistent with Table Configure the UE s output power level. Enter 19 dbm for PUSCH Target Power. See Figure 36. This value drives the UE to transmit at 19 dbm, 4 db below maximum output power. Back 11. If desired, verify that the UE is transmitting at the correct power level. Back > Tx Measurements > Channel Power The UE s output power should be approximately 19 dbm/20 MHz. 12. Measure the average throughput. Cell1 > BLER/Tput > Start Average throughput is shown in kbps for PCC CW0 (the primary component carrier code word 0). For these test conditions, the average throughput must be Mbps for the UE to pass this test. Maximum throughput for FDD receiver requirements is defined in Table A as kbps. Statistical requirements define a minimum number of transport blocks, 67, over which to measure throughput assuming no errors (no NACKs and no statdtx). As the number of errors increase, so must the number of transport blocks measured. This relationship is defined in Table G The minimum Measurement Length for BLER/Tput on the UXM is currently 600 DL subframes which is equivalent to 600 transport blocks at maximum throughput. View the number of DL NACKs and statdtx recorded during the throughput measurement in the DL HARQ Feedback table under PCC CW0 as shown in Figure 52. Figure 52. Maximum Input Level Results

90 90 Keysight Performing LTE and LTE-Advanced Measurements Application Note 13. To repeat for additional test conditions, follow the steps in section After all testing is complete, end the connection. Back > Back > Connect > Stop UL MAC Padding Stop DL MAC Padding Switch off the UE. Back > Cell1 > Deactivate Cell 5.6 Example Test Procedure for Adjacent Channel Selectivity (c 7.5) Description and Parameter Summary Adjacent channel selectivity (ACS) shall be performed for all E-UTRA UEs from 3GPP Rel-8 and forward. ACS testing is performed to verify the UE s ability to receive data in the presence of an E-UTRA signal on an adjacent channel. A reference measurement channel is used at both low and high signal levels to the UE. The adjacent channel is emulated as a modulated interferer with OCNG located in the adjacent channel above or below the downlink carrier frequency. ACS is not measured directly. Instead, the UE s throughput is measured under specific conditions that emulate ACS in a live network. A UE that cannot meet the requirements decreases the effective coverage area of a network when other UEs are transmitting on adjacent channels. Test conditions specified are normal conditions (NC) only. A mid-range test frequency is used. This is specified for each band and channel bandwidth. Refer to Table 53 to find the test frequencies required for each band supported by the UE under test. The test is performed using the lowest and highest channel bandwidths defined in each band supported by the UE, and a 5 MHz channel bandwidth. The required test parameters including modulation type and RB allocation for the downlink and uplink vary depending on channel bandwidth, E-UTRA band and UE category. Refer to Table 65 and Table 66 for the parameter values required for each channel bandwidth and band supported by the UE under test Parameters for Example Procedure This example procedure uses FDD E-UTRA Band 3 with a 20 MHz channel bandwidth. Test conditions are normal and mid-range test channels are used. The downlink test configuration for the wanted signal (non-interfering signal) uses full RB allocation and QPSK modulation as shown in Table Table 37 shows the downlink test configuration used in the example procedure. This is configuration number 14 from Table 65. Table 37. ACS Wanted DL Test Configuration for Band 3 with 20 MHz Bandwidth FDD Downlink Configuration for Wanted Signal Ch BW Modulation RB Allocation RB Start Payload Size (bits) MCS (Imcs-Qm) SF 0-4, 6-9 SF 5 SF 0-4, 6-9 SF 5 20 MHz QPSK n/a 5-QPSK Off ACS is measured using an interfering signal in the adjacent channels below and above the downlink carrier frequency. The characteristics of interfering signals are defined in annex D. The interfering signal s channel bandwidth is required to be 5 MHz under these test conditions. The interfering signal uses full RB allocation and QPSK modulation. In the example procedure, the UXM s Cell2 is used as the interferer with the configuration in Table 38 generated on the downlink.

91 91 Keysight Performing LTE and LTE-Advanced Measurements Application Note Table 38. ACS Interfering DL Test Configuration for Band 3 with 5 MHz Bandwidth FDD Downlink Configuration for Interfering Signal Ch BW Modulation RB Allocation RB Start Payload Size (bits) MCS (Imcs-Qm) 5 MHz QPSK QPSK Even though Table lists several uplink RB allocations for a 20 MHz channel bandwidth with FDD, Note 2 below the table refers to Table where only one uplink RB allocation is valid for E-UTRA Band 3. Note 2 also specifies the uplink RB allocation should located as close to the downlink as possible. Since the downlink channels are higher in frequency than the uplink, the uplink RB Start should position the 50 uplink RB allocated blocks at the high end of the uplink transmission bandwidth and, therefore, RB Start should be 50 for these test conditions. The uplink test configuration uses QPSK modulation. Table 39 shows the uplink test configuration used in the example procedure. This is configuration number 38 from Table 66. This configuration applies for all UE categories. Table 39. ACS UL Test Configuration for Band 3 with 20 MHz Bandwidth FDD Uplink Configuration Ch BW Modulation RB Allocation RB Start Payload Size (bits) MCS (Imcs-Qm) 20 MHz QPSK QPSK ACS is measured using two different sets of levels in the downlink. In Case 1, the downlink carrier and interferer power levels are configured relative to the REFSENS value (see Table ) for each band and channel bandwidth as defined in Table The REFSENS values for Band 3 are shown in Table 40. Table 40. REFSENS Values for Band 3 E-UTRA Band Channel BW REFSENS Value Duplex Mode 3 20 MHz dbm/20 MHz FDD 3 5 MHz dbm/5 MHz FDD In Case 2, the downlink carrier and interferer power levels are configured to high levels as specified in Table Cell power levels on the UXM can be configured in dbm/15 khz and also in dbm per channel bandwidth. So, the REFSENS value is used directly on the UXM with no need for additional calculations. ACS is measured using two different sets of levels in the uplink as well. In Case 1, the UE is signaled to transmit at 4 db below maximum power adjusted by MPR (see sub-clause 6.2.5). And in Case 2, the UE is signaled to transmit at 24 db below maximum power adjusted by MPR. The connection diagram used for this example procedure with the UXM is shown in Figure 2.

92 92 Keysight Performing LTE and LTE-Advanced Measurements Application Note Test Steps for Example Procedure 1. Change the UXM parameters described in Table 30. Or, if you have saved this configuration, recall it. See Figure 5. These are the parameters common to all receiver characteristics tests without DL CA. 2. Configure the downlink and uplink reference signals. Cell1 > Scheduling > Subframes Config Check the box preceding Configure All Subframes at Once. Select 6-QPSK for Uplink MCS(Imcs-Qm) of SF 0. Enter 50 for both RB and Start of SF 0. All of the uplink subframes are automatically configured with these values. Uncheck the box preceding Configure All Subframes at Once. Uncheck the DL SF Alloc of SF 5. The downlink and uplink signals are now configured to match Table 37 and Table Connect the UE s Rx/Tx antenna through a circulator to the UXM front panel port TxRx2/Rx2. From the same UXM RF Transceiver (A or B), connect the TxRx1/Rx1 front panel port through a combiner to the UE s Rx (diversity) antenna. Connect the other UXM front panel TxRx1/Rx1 port through a splitter to the combiner. Connect the splitter to the circulator. The connections are now configured to match Figure Switch on Cell 1. Cell1 > Activate Cell Wait for the Cell1 status to change to ON. See Figure Switch on the UE and establish a connection. Switch on the UE and wait for Cell1 status to change to CONNECTED. See Figure Start transmitting data from the UXM on the downlink. Cell1 > Connect > Start DL MAC Padding A down arrow next to the cell tower as shown in Figure 23 signifies that DL MAC padding has started on Cell1. 7. Tell the UE to start transmitting data to the UXM on the uplink. Start UL MAC Padding An up arrow joins the down arrow next to the cell tower as shown in Figure 24 to signify that both DL and UL MAC padding have started on Cell1. 8. Configure the interfering signal. Cell2 > System > Impairments Check the box preceding OCNG. This switches on OCNG for Cell2. Cell2 > Cell > Config Enter 3 for Band and select 5 MHz for Downlink Bandwidth. Select Frequency for the Frequency Setting Method. Enter MHz for Downlink Frequency. This configures the interferer s frequency to be MHz away from the downlink carrier frequency of MHz as required for these conditions in Table Enter dbm/5 MHz for Cell Power. This configures the interferer s power level to be 39.5 db above the REFSENS value as required for these conditions in Table Check the box preceding Cell Power. This switches on Cell2 as the interferer. Cell2 > Activate Cell Wait for the Cell2 status to change to ON.

93 93 Keysight Performing LTE and LTE-Advanced Measurements Application Note Figure 53. Cell2 Activated The interfering signal is now configured to measure ACS for Case 1 at the adjacent channel below the uplink carrier signal. 9. Configure the ACS measurement. Cell1 > BLER/Tput > Measurement Setup Change the Measurement Length to 600 and the Measurement Mode to Single. DL OTA 10. Configure the downlink signal level using the menu key. Cell1 > Power Control Enter dbm for Cell Power (Channel BW). See Figure 25. This is 14 db higher than the REFSENS level for these conditions as required in Table Configure the UE s output power level. Enter 19 dbm for PUSCH Target Power. See Figure 36. This value drives the UE to transmit at 19 dbm, 4 db below maximum output power as required in Note 1 below Table Back 12. If desired, verify that the UE is transmitting at the correct power level. Back > Tx Measurements > Channel Power The UE s output power should be between 15.6 and 19 dbm/20 MHz as required for these test conditions in sub-clause step Measure the average throughput. Cell1 > BLER/Tput > Start Average throughput is shown in kbps for PCC CW0 (the primary component carrier code word 0). For these test conditions, the average throughput must be Mbps for the UE to pass this test as required in sub-clause Maximum throughput for FDD receiver requirements under these test conditions is defined in Table A as 7884 kbps. Statistical requirements define a minimum number of transport blocks, 67, over which to measure throughput assuming no errors (no NACKs and no statdtx). As the number of errors increase, so must the number of transport blocks measured. This relationship is defined in Table G The minimum Measurement Length for BLER/Tput on the UXM is currently 600 DL subframes which is equivalent to 600 transport blocks at maximum throughput. View the number of DL NACKs and statdtx recorded during the throughput measurement in the DL HARQ Feedback table under PCC CW0 as shown in Figure 54.

94 94 Keysight Performing LTE and LTE-Advanced Measurements Application Note Figure 54. ACS Results. 14. To repeat the measurement using an interfering signal above the wanted signal, change the frequency of Cell2. Cell2 > Cell > Config Enter MHz for Downlink Frequency. This configures the interferer s frequency to be MHz away from the downlink carrier frequency of MHz as required for these conditions in Table and Table Cell1 > BLER/Tput Repeat step To repeat the measurement for the test conditions specified in Case 2, reconfigure the downlink, uplink and interferer power levels. Cell1 > Power Control Enter dbm for Cell Power (Channel BW) as required for Case 2 in Table Enter -1 dbm for PUSCH Target Power. This value drives the UE to transmit at -1 dbm, 24 db below maximum output power as required for Case 2 in Note 1 below Table Cell2 > Cell > Config Enter MHz for Downlink Frequency. This configures the interferer s frequency to be MHz away from the downlink carrier frequency of MHz as required for Case 2 in Table Enter -25 dbm/5 MHz for Cell Power as required for Case 2 in Table Cell1 > BLER/Tput Repeat steps 13 and To repeat for additional test conditions, follow the steps in section After all testing is complete, end the connection. Cell2 > Back > Back > Deactivate Cell Cell1 > Connect > Stop UL MAC Padding Stop DL MAC Padding Switch off the UE. Back > Cell1 > Deactivate Cell

95 95 Keysight Performing LTE and LTE-Advanced Measurements Application Note 5.7 Example Test Procedure for In-Band Blocking (sc 7.6.1) Description and Parameter Summary In-band blocking shall be performed for all E-UTRA UEs from 3GPP Rel-8 and forward. Inband blocking testing is performed to verify the UE s ability to receive data in the presence of an interfering signal within 15 MHz of the UE receive band. A reference measurement channel is used at a low signal level to the UE. The interfering signal is emulated using a modulated reference signal with OCNG at specific offset frequencies above and below the UE receive band frequencies. The UE s throughput is measured under these conditions. A UE that cannot meet the requirements decreases the effective coverage area of a network when other UEs are transmitting in the same band. Test conditions specified are normal conditions (NC) only. A mid-range test frequency is used. This is specified for each band and channel bandwidth. Refer to Table 53 to find the test frequencies required for each band supported by the UE under test. The test is performed using the lowest and highest channel bandwidths defined in each band supported by the UE, and a 5 MHz channel bandwidth. The required test parameters including modulation type and RB allocation for the downlink and uplink vary depending on channel bandwidth, E-UTRA band and UE category. Refer to Table 65 and Table 66 for the parameter values required for each channel bandwidth and band supported by the UE under test Parameters for Example Procedure This example procedure uses FDD E-UTRA Band 3 with a 20 MHz channel bandwidth. Test conditions are normal and mid-range test channels are used. The downlink test configuration for the wanted signal (non-interfering signal) uses full RB allocation and QPSK modulation as shown in Table Table 41 shows the downlink test configuration used in the example procedure. This is configuration number 14 from Table 65. Table 41. In-Band Blocking Wanted DL Test Configuration for Band 3 with 20 MHz Bandwidth FDD Downlink Configuration for Wanted Signal Ch BW Payload Size (bits) MCS (Imcs-Qm) Modulation RB Allocation RB Start SF 0-4, 6-9 SF 5 SF 0-4, 6-9 SF 5 20 MHz QPSK n/a 5-QPSK Off In-band blocking is measured using an interfering signal below and above the uplink band. The characteristics of interfering signals are defined in annex D. The interfering signal s channel bandwidth is required to be 5 MHz under these test conditions. The interfering signal uses full RB allocation and QPSK modulation. In the example procedure, the UXM s Cell2 is used as the interferer with the configuration in Table 42 generated on the downlink. Table 42. In-Band Blocking Interfering DL Test Configuration for Band 3 with 5 MHz Bandwidth FDD Downlink Configuration for Interfering Signal Ch BW Modulation RB Allocation RB Start Payload Size (bits) MCS (Imcs-Qm) 5 MHz QPSK QPSK

96 96 Keysight Performing LTE and LTE-Advanced Measurements Application Note The interfering signal s frequency is based on the lower and upper frequencies in Band Table is an example calculation of the interferer frequencies using Band 1 with 5 MHz channel bandwidth. Table 43 shows this example using Band 3 with 20 MHz channel bandwidth. Table 43. Interferer Frequency Calculations for Band 3 with 20 MHz Bandwidth Frequency Calculations for Interfering Signal Parameter Lower Frequency Upper Frequency Band 3 DL 1805 MHz 1880 MHz Band 3 midrange MHz MHz Receive band wanted signal (BW 20 MHz) MHz MHz Interferer case MHz MHz Interferer case 2 (inner frequency) MHz MHz Interferer case 2 (outer frequency) MHz MHz Outer limit for in-band blocking 1790 MHz 1895 MHz Number of test frequencies case Test frequencies case MHz, MHz, MHz, MHz, MHz, MHz MHz, MHz, MHz, MHz, MHz, MHz Notes for calculation of values in Table 43: Band 3 DL is defined in Table Band 3 midrange references Table 53. Receive band for the wanted signal is BW/2 on either side of the midrange frequency. Interferer case 1 frequencies and interferer case 2 (inner frequency) are derived from Tables and for 20 MHz channel bandwidth. Interferer case 2 (outer frequency) values are provided as a convenience to more easily determine the initial lower test frequency for case 2. They are calculated as Lower frequency interferer case 2 (outer frequency) = interferer case 2 (inner frequency) (number of test frequencies case 2 1) x 5 MHz, and Upper frequency interferer case 2 (outer frequency) = interferer case 2 (inner frequency) + (number of test frequencies case 2 1) x 5 MHz as required by Table and Note 3 below the table. The outer limit for in-band blocking is defined in Table The number of test frequencies case 2 is calculated by dividing the difference of interferer case 2 (inner frequency) and outer limit for in-band blocking by 5 MHz and rounding up to the nearest integer as required in sub-clause step 7. The test frequencies case 2 are calculated by moving in 5 MHz increments away from interferer case 2 (inner frequency) without exceeding the outer limit for in-band blocking. Thus, 12 frequencies must be used for the interferer during measurement of in-band blocking for Case 2 under these test conditions. Even though Table lists several uplink RB allocations for a 20 MHz channel bandwidth with FDD, Note 2 below the table refers to Table where only one uplink RB allocation is valid for E-UTRA Band 3. Note 2 also specifies the uplink RB allocation should located as close to the downlink as possible. Since the downlink channels are higher in frequency than the uplink, the uplink RB Start should position the 50 uplink RB allocated blocks at the high end of the uplink transmission bandwidth and, therefore, RB Start should be 50 for these test conditions.

97 97 Keysight Performing LTE and LTE-Advanced Measurements Application Note The uplink test configuration uses QPSK modulation. Table 44 shows the uplink test configuration used in the example procedure. This is configuration number 38 from Table 66. This configuration applies for all UE categories. Table 44. In-Band Blocking UL Test Configuration for Band 3 with 20 MHz Bandwidth FDD Uplink Configuration Ch BW Modulation RB Allocation RB Start Payload Size (bits) MCS (Imcs-Qm) 20 MHz QPSK QPSK In-band blocking is measured using downlink carrier and interferer power levels that are configured relative to the REFSENS value (see Table ) for each band and channel bandwidth as defined in Table The REFSENS values for Band 3 are shown in Table 45. Table 45. REFSENS Values for Band 3 E-UTRA Band Channel BW REFSENS Value Duplex Mode 3 20 MHz dbm/20 MHz FDD 3 5 MHz dbm/5 MHz FDD Cell power levels on the UXM can be configured in dbm/15 khz and also in dbm per channel bandwidth. So, the REFSENS value is used directly on the UXM with no need for additional calculations. The UE is signaled to transmit at 4 db below maximum power adjusted by MPR (see sub-clause 6.2.5). The connection diagram used for this example procedure with the UXM is shown in Figure Test Steps for Example Procedure 1. Change the UXM parameters described in Table 30. Or, if you have saved this configuration, recall it. See Figure 5. These are the parameters common to all receiver characteristics tests without DL CA. 2. Configure the downlink and uplink reference signals. Cell1 > Scheduling > Subframes Config Check the box preceding Configure All Subframes at Once. Select 6-QPSK for Uplink MCS(Imcs-Qm) of SF 0. Enter 50 for both RB and Start of SF 0. All of the uplink subframes are automatically configured with these values. Uncheck the box preceding Configure All Subframes at Once. Uncheck the DL SF Alloc of SF 5. The downlink and uplink signals are now configured to match Table 41 and Table Connect the UE s Rx/Tx antenna through a circulator to the UXM front panel port TxRx2/Rx2. From the same UXM RF Transceiver (A or B), connect the TxRx1/Rx1 front panel port through a combiner to the UE s Rx (diversity) antenna. Connect the other UXM front panel TxRx1/Rx1 port through a splitter to the combiner. Connect the splitter to the circulator.the connections are now configured to match Figure Switch on Cell 1. Cell1 > Activate Cell Wait for the Cell1 status to change to ON. See Figure Switch on the UE and establish a connection. Switch on the UE and wait for Cell1 status to change to CONNECTED. See Figure 7.

98 98 Keysight Performing LTE and LTE-Advanced Measurements Application Note 6. Start transmitting data from the UXM on the downlink. Cell1 > Connect > Start DL MAC Padding A down arrow next to the cell tower as shown in Figure 23 signifies that DL MAC padding has started on Cell1. 7. Tell the UE to start transmitting data to the UXM on the uplink. Start UL MAC Padding An up arrow joins the down arrow next to the cell tower as shown in Figure 24 to signify that both DL and UL MAC padding have started on Cell1. 8. Configure the interfering signal. Cell2 > System > Impairments Check the box preceding OCNG. This switches on OCNG for Cell2. Cell2 > Cell > Config Enter 3 for Band and select 5 MHz for Downlink Bandwidth. Select Frequency for Frequency Setting Method. Enter MHz for Downlink Frequency. This configures the interferer s frequency to be MHz away from the mid-range downlink carrier frequency of MHz as required for these conditions for Case 1 in Tables and Enter -56 dbm/5 MHz for Cell Power. This configures the interferer power level as required for these conditions for Case 1 in Table Check the box preceding Cell Power. This switches on Cell2 as the interferer. Cell2 > Activate Cell Wait for the Cell1 status to change to ON. See Figure 53. The interfering signal is now configured to measure in-band blocking for Case 1 at the frequency offset below the downlink band. 9. Configure the in-band blocking measurement. Cell1 > BLER/Tput > Measurement Setup Change the Measurement Length to 600 and the Measurement Mode to Single. DL OTA 10. Configure the downlink signal level using the menu key. Cell1 > Power Control Enter dbm for Cell Power (Channel BW). See Figure 25. This is 9 db higher than the REFSENS level for these conditions as required in Table Configure the UE s output power level. Enter 19 dbm for PUSCH Target Power. See Figure 36. This value drives the UE to transmit at 19 dbm, 4 db below maximum output power as required in Note 1 below Table Back 12. If desired, verify that the UE is transmitting at the correct power level. Back > Tx Measurements > Channel Power The UE s output power should be between 15.6 and 19 dbm/20 MHz as required for these test conditions in sub-clause step Measure the average throughput. Cell1 > BLER/Tput > Start Average throughput is shown in kbps for PCC CW0 (the primary component carrier code word 0). For these test conditions, the average throughput must be Mbps for the UE to pass this test as required in sub-clause

99 99 Keysight Performing LTE and LTE-Advanced Measurements Application Note Maximum throughput for FDD receiver requirements under these test conditions is defined in Table A as 7884 kbps. Statistical requirements define a minimum number of transport blocks, 67, over which to measure throughput assuming no errors (no NACKs and no statdtx). As the number of errors increase, so must the number of transport blocks measured. This relationship is defined in Table G The minimum Measurement Length for BLER/Tput on the UXM is currently 600 DL subframes which is equivalent to 600 transport blocks at maximum throughput. View the number of DL NACKs and statdtx recorded during the throughput measurement in the DL HARQ Feedback table under PCC CW0 as shown in Figure 55. Figure 55. In-Band Blocking Results for Case To repeat the test case for Case 1 using the upper frequency for the interferer, modify the interferer frequency. Cell2 > Cell > Config Enter MHz for Downlink Frequency. The interfering signal is now configured to measure in-band blocking for Case 1 at the frequency offset above the downlink band. Cell1 > BLER/Tput Repeat step To repeat the test case for Case 2, modify the interferer frequency. Cell2 > Cell > Config Configure Downlink Frequency to the desired test frequency for Case 2 in Table 43. The interfering signal is now configured to measure in-band blocking for Case 2. Cell1 > BLER/Tput Repeat steps 13 and 15 until all Case 2 test frequencies are tested. 16. To repeat for additional test conditions, follow the steps in section After all testing is complete, end the connection. Cell2 > Back > Back > Deactivate Cell Cell1 > Connect > Stop UL MAC Padding Stop DL MAC Padding Switch off the UE. Back > Cell1 > Deactivate Cell

100 100 Keysight Performing LTE and LTE-Advanced Measurements Application Note 6 Receiver Characteristics with Carrier Aggregation 6.1 Overview of Receiver Characteristics with DL CA For receiver characteristics tests that are part of 3GPP Rel-10, two network cells are required. One cell is the primary component carrier (PCC) and the other cell is the secondary component carrier (SCC). No MIMO is used and no power boosting is required. Orthogonal channel noise generation (OCNG) with configuration OP.1 is used on both carriers to maintain a constant power level to the UE. OCNG configurations are defined in annex A.5. The receiver characteristics also require specific modulation and coding configurations in the uplink and downlink. These configurations vary depending on E-UTRA band and channel bandwidth. 6.2 Common Parameters for Receiver Characteristics with DL CA Receiver characteristics for UE performance with downlink carrier aggregation (CA) are similar to those without CA. Initial parameter values for all receiver characteristics are described in sub-clause Initial conditions for DL signals are described in annexes C.0, C.1, C.2 and C.3.1. For UL signals, initial conditions are described in annexes A.2, H.1 and H.3.1. Propagation conditions are defined in annex B.0. Most of these initial values are configured by default in the UXM. For example, the UXM s receiver is automatically configured to use the optimum range for the UE s expected signal level. The few parameters that must be modified to align with 3GPP requirements are shown in Table 46. These parameter value changes enable use of the example test procedures in this application note. Table 46. UXM Parameter Changes for Receiver Characteristics with CA UXM Parameter Changes from Desired Value UXM Default Value UXM Front Panel Navigation Default Values Full Preset Default Utility > Preset > Full Preset Cell1 Band 3 1 Cell1 > Cell > Config Cell1 DL Max Transmission 5 4 Cell1 > MAC/RLC/PDCP > HARQ Cell1 UL Max Transmission 1 4 Cell1 > MAC/RLC/PDCP > HARQ Cell1 DL Antenna Config 2x2 1x1 Cell1 > System > RF Config Cell1 OCNG On Off Cell1 > System > Impairments Cell2 Carrier Assignment SCC Cell2 > Cell > Config Cell2 Band 5 1 Cell2 > Cell > Config Cell2 DL Max Transmission 5 4 Cell2 > MAC/RLC/PDCP > HARQ Cell2 DL Antenna Config 2x2 1x1 Cell2 > System > RF Config Cell2 OCNG On Off Cell2 > System > Impairments To save these parameter values for quicker setup, use a save register. Utility > Save Highlight the folder where you would like to save the register file. Enter a File Name for the register. See Figure 4. Save Register The parameter values have now been saved. To use these values later, recall the register. Utility > Recall Highlight the Name of the register to recall. See Figure 5. Recall Register The UXM parameter values are modified to match those in the recalled register.

101 101 Keysight Performing LTE and LTE-Advanced Measurements Application Note 6.3 Additional Test Conditions for Receiver Characteristics with CA The example procedures in this section of the application note are useful to verify UE receiver performance with CA at one set of test conditions from However, measurement over additional test conditions is required. The following summarizes the recommended order, references and procedures for measurement of additional test conditions using UXM. 1. To measure additional DL and UL modulation and allocation conditions, refer to to reconfigure the DL and/or UL scheduling on the Scheduling > Subframes Config tab. Then, repeat the example test procedure. The original connection established during the example test procedure is maintained. 2. To measure additional CA configurations with a different band for the PCC (without changing the SCC band), change the PCC band using the Handover > Blind Handover > PCC Blind Handover menu key. Remember to enter Cell ID and DL EARFCN as well as Frequency Band before starting the handover. See Table 55 to find reference test channels for each CA configuration. Then, repeat the example test procedure. The original connection established during the example test procedure is maintained by using the handover. 3. To measure additional bandwidth combination sets as supported by the UE, end the connection established during the example test procedure and establish a new one with the modified bands and channel bandwidths. After deactivating both cells, select Downlink Bandwidth on the Cell1 > Cell > Config tab. Uplink Bandwidth changes automatically once Downlink Bandwidth is selected. Remember to enter Band and Downlink EARFCN as well. Repeat the entry of these same parameters for Cell2. Then, repeat the example test procedure. If needed, measure additional CA configurations with a different band for the PCC (but the same band for the SCC) as described previously. 4. To measure with the PCC and SCC bands swapped, end the connection established during the example test procedure and establish a new one with the modified bands. After deactivating both cells, enter Band on the Cell1 > Cell > Config tab. Remember to enter Downlink EARFCN and Downlink Bandwidth as well. Repeat the entry of these same parameters for Cell2. Then, repeat the example test procedure. If needed, measure additional CA configurations with a different PCC band and different bandwidth combination sets as described previously. 6.4 Example Test Procedure for Reference Sensitivity Level for Interband DL CA without UL CA (sc 7.3A.3) Description and Parameter Summary Receiver sensitivity level for interband DL CA without UL CA shall be performed for all E-UTRA UEs that support interband DL CA, but not UL CA, from 3GPP Rel-10 and forward. Receiver sensitivity testing is performed to verify the UE s ability to receive data with a specified throughput. A reference measurement channel is used at a low signal level to the UE. A UE that cannot meet the requirements decreases the effective coverage area of a network. Test conditions specified are normal conditions (NC) along with low and high temperature (TL and TH) and low and high voltage (VL and VH) combinations. Mid-range test frequencies are used. These are specified for each CA bandwidth class. Refer to Table 55 to find the interband test frequencies required for each CA bandwidth class supported by the UE under test. The test is performed using the lowest and highest aggregated channel bandwidths defined in each band supported by the UE.

102 102 Keysight Performing LTE and LTE-Advanced Measurements Application Note The required test parameters including modulation type and RB allocation for the downlink and uplink vary depending on channel bandwidth and E-UTRA band. Refer to Tables 7.3A to 7.3A for parameter values required for each channel bandwidth and band supported by the UE under test Parameters for Example Procedure This example procedure uses FDD E-UTRA Band 3 for the PCC and Band 5 for the SCC, both with 10 MHz channel bandwidth, for an aggregated bandwidth of 20 MHz. Test conditions are normal and mid-range test channels are used. The downlink test configuration uses full RB allocation and QPSK modulation for the PCC and SCC as shown in Table 7.3A Table 47 shows the downlink test configuration used in the example procedure. This is configuration number 8 from Table 65. Table 47. Receiver Sensitivity DL Test Configuration for Interband FDD DL CA without UL CA using Bands 3 and 5 with 20 MHz Aggregated Bandwidth FDD Downlink Configuration for PCC and SCC Ch BW Payload Size (bits) MCS (Imcs-Qm) Modulation RB Allocation RB Start SF 0-4, 6-9 SF 5 SF 0-4, 6-9 SF 5 10 MHz QPSK n/a 5-QPSK Off Even though Table 7.3A lists several uplink RB allocations for an aggregated 20 MHz bandwidth with FDD, Note 2 below the table refers to Table where only one uplink RB allocation is valid for E-UTRA Band 3. The PCC is located in Band 3, so the UL is associated with Band 3. Note 3 states the uplink RB allocation shall be located as close to the downlink SCC as possible. Since the downlink channels are higher in frequency than the uplink, the uplink RB Start value should position the 50 uplink RB allocated blocks at the high end of the uplink transmission bandwidth. However, for 10 MHz channel bandwidth, the UL is fully allocated with 50 RB, so the RB Start must be 0. The uplink test configuration uses QPSK modulation. Table 48 shows the uplink test configuration used in the example procedure. This is configuration number 24 from Table 66. Table 48. Receiver Sensitivity UL Test Configuration for Interband FDD DL CA without UL CA using Band 3 with 10 MHz Bandwidth FDD Uplink Configuration for PCC Ch BW Modulation RB Allocation RB Start Payload Size (bits) MCS (Imcs-Qm) 10 MHz QPSK QPSK Receiver sensitivity is performed by transmitting low signal levels to the UE. The signal level (REFSENS) values are defined in Table 7.3A for each CA configuration, band and channel bandwidth. The REFSENS values for CA in Bands 3 and 5 with a 10 MHz channel bandwidth are shown in Table 49. Table 49. REFSENS Values for Bands 3 and 5 with 10 MHz Bandwidth CA Config. E-UTRA Band 10 MHz Duplex Mode dbm/10 MHz FDD CA_3A-5A dbm/10 MHz FDD

103 103 Keysight Performing LTE and LTE-Advanced Measurements Application Note Cell power levels on the UXM can be configured in dbm/15 khz and also in dbm per channel bandwidth. So, the REFSENS value is used directly on the UXM with no need for additional calculations. The UE is signaled to transmit at maximum power during receiver sensitivity testing. The connection diagram used for this example procedure with the UXM is shown in Figure Test Steps for Example Procedure 1. Change the UXM parameters described in Table 46. Or, if you have saved this configuration, recall it. See Figure 5. These are the parameters common to all receiver characteristics tests with interband DL CA. 2. Configure the downlink and uplink reference signals for the PCC and the SCC. Cell1 > Scheduling > Subframes Config Uncheck DL SF Alloc of SF 5. Check the box preceding Configure All Subframes at Once. Select 6-QPSK for Uplink MCS(Imcs-Qm) of SF 0. All of the uplink subframes are automatically configured with this value. Cell2 > Scheduling > Subframes Config Uncheck the box preceding Configure All Subframes at Once. Uncheck DL SF Alloc of SF 5. The downlink signals for the PCC and the SCC and the uplink signal for the PCC are now configured to match Table 47 and Table Connect the UE s Rx/Tx antenna through a combiner to both TxRx1 ports on the UXM front panel. Connect the UE s Rx (diversity) antenna through a combiner to both TxRx2 ports on the UXM front panel. The connections are now configured to match Figure Switch on Cell1. Cell1 > Activate Cell Wait for the Cell1 status to change to ON. Figure 56. Cell1 Activated as the PCC 5. Switch on the UE and establish a connection with the PCC. Switch on the UE and wait for Cell1 status to change to CONNECTED. Figure 57. UE Connected to PCC (Cell1)

104 104 Keysight Performing LTE and LTE-Advanced Measurements Application Note 6. Switch on Cell2. Cell2 > Activate Cell Wait for the Cell2 status to change to ON. Figure 58. Cell2 Activated 7. Apply carrier aggregation to create the PCC and the SCC. Cell1 > Connect > Aggregate SCC Wait for the Cell2 status to change to AGGREGATED. Figure 59. Cell2 Aggregated with PCC (Cell1) Cell1 > Activate SCC Wait for the Cell2 status to change to ACTIVATED. Figure 60. Cell2 Activated as SCC 8. Start transmitting data from the UXM on the downlink. Cell1 > Start DL MAC Padding An up arrow next to the cell tower as shown in Figure 8 signifies that UL MAC padding has started on the PCC. Cell2 > Start DL MAC Padding A down arrow next to the cell tower as shown in Figure 61 signifies that DL MAC padding has started on the SCC. Figure 61. SCC DL MAC Padding Started 9. Tell the UE to start transmitting data to the UXM on the uplink. Cell1 > Start UL MAC Padding An up arrow joins the down arrow next to the cell tower as shown in Figure 24 to signify that both DL and UL MAC padding have started on the PCC. 10. Configure the throughput measurement. Cell1 > BLER/Tput > Measurement Setup Change the Measurement Length to 600 and the Measurement Mode to Single. DL OTA

105 105 Keysight Performing LTE and LTE-Advanced Measurements Application Note 11. Configure the downlink signal levels to the REFSENS values using the menu key. Cell1 > Power Control Change the Cell Power (Channel BW) to dbm. See Figure 25. Cell2 > Power Control Change the Cell Power (Channel BW) to dbm. These values are consistent with Table Configure the UE s output power level. Cell1 > Power Control Change UE Power Control Mode to All Up Bits. See Figure 9. Back 13. If desired, verify that the UE is transmitting at its maximum output power level. Cell1 > Back > Tx Measurements > Channel Power The UE s maximum output power should be approximately 23 dbm/10 MHz in Band 3 (see Table ). 14. Measure the average throughput for each component carrier. Cell1 > BLER/Tput > Start Average throughput is shown in kbps for PCC CW0 (the primary component carrier code word 0) and for SCC CW0 (the secondary component carrier code word 0). For these test conditions, the average throughput for each component carrier must be 3413 kbps for the UE to pass this test. Maximum throughput for FDD receiver requirements is defined in Table A as kbps. Statistical requirements define a minimum number of transport blocks, 67, over which to measure throughput assuming no errors (no NACKs and no statdtx). As the number of errors increase, so must the number of transport blocks measured. This relationship is defined in Table G The minimum Measurement Length for BLER/Tput on the UXM is currently 600 DL subframes which is equivalent to 600 transport blocks at maximum throughput. View the number of DL NACKs and statdtx recorded during the throughput measurement in the DL HARQ Feedback table under PCC CW0 and SCC CW0 as shown in Figure 62. Figure 62. Receiver Sensitivity Results with Interband DL CA

106 106 Keysight Performing LTE and LTE-Advanced Measurements Application Note 15. To repeat for additional test conditions, follow the steps in section After all testing is complete, end the connection. Cell2 > Back > Back > Connect > Stop DL MAC Padding Cell1 > Stop DL MAC Padding Cell1 > Stop UL MAC Padding Cell1 > Deactivate SCC Cell1 > Deaggregate SCC Cell2 > Back > Deactivate Cell Switch off the UE. Cell1 > Deactivate Cell 6.5 Example Test Procedure for Maximum Input Level for Interband DL CA without UL CA (sc 7.4A.3) Description and Parameter Summary Maximum input level for interband DL CA without UL CA shall be performed for all E-UTRA UEs that support interband DL CA, but not UL CA, from 3GPP Rel-10 and forward. Maximum input level testing is performed to verify the UE s ability to receive data with a specified throughput. A reference measurement channel is used at a high signal level to the UE. A UE that cannot meet the requirements decreases the effective coverage area of a network especially near an e-nodeb. Test conditions specified are normal conditions (NC) only. Mid-range test frequencies are used. These are specified for each CA bandwidth class. Refer to Table 55 to find the interband test frequencies required for each CA bandwidth class supported by the UE under test. The test is performed using the highest aggregated channel bandwidth defined in each band supported by the UE. The required test parameters including modulation type and RB allocation for the downlink and uplink vary depending on channel bandwidth, E-UTRA band and UE category. Refer to Table 7.4A for the parameter values required for each channel bandwidth and band supported by the UE under test Parameters for Example Procedure This example procedure uses FDD E-UTRA Band 3 for the PCC and Band 5 for the SCC, both with 10 MHz channel bandwidth, for an aggregated bandwidth of 20 MHz. Test conditions are normal and mid-range test channels are used. A UE category > 2 is assumed. The downlink test configuration uses full RB allocation and 64QAM modulation for the PCC and SCC as shown in Table 7.4A Table 50 shows the downlink test configuration used in the example procedure. This is configuration number 10 from Table 65. Table 50. Maximum Input Level DL Test Configuration for Interband FDD DL CA without UL CA using Bands 3 and 5 with 20 MHz Aggregated Bandwidth FDD Downlink Configuration for PCC and SCC Ch BW Payload Size (bits) MCS (Imcs-Qm) Modul. RB All. RB Start SF 0 SF 5 SF 1-4, 6-9 SF 0 SF 5 SF 1-4, MHz 64-QAM n/a QAM Off 26-64QAM

107 107 Keysight Performing LTE and LTE-Advanced Measurements Application Note Even though Table 7.4A lists several uplink RB allocations for an aggregated 20 MHz bandwidth with FDD, Note 2 below the table refers to Table where only one uplink RB allocation is valid for E-UTRA Band 3. The PCC is located in Band 3, so the UL is associated with Band 3. Note 3 states the uplink RB allocation shall be located as close to the downlink SCC as possible. Since the downlink channels are higher in frequency than the uplink, the uplink RB Start value should position the 50 uplink RB allocated blocks at the high end of the uplink transmission bandwidth. However, for 10 MHz channel bandwidth, the UL is fully allocated with 50 RB, so the RB Start must be 0. The uplink test configuration uses QPSK modulation. Table 51 shows the uplink test configuration used in the example procedure. This is configuration number 24 from Table 66. Table 51. Maximum Input Level UL Test Configuration for Interband FDD DL CA without UL CA using Band 3 with 10 MHz Bandwidth FDD Uplink Configuration for PCC Ch BW Modulation RB Allocation RB Start Payload Size (bits) MCS (Imcs-Qm) 10 MHz QPSK QPSK Maximum input level is measured by transmitting high signal levels to the UE. The signal levels are defined in Table 7.4A for each band and channel bandwidth. The downlink signal value for Bands 3 and 5 with 10 MHz channel bandwidth is shown in Table 52. Table 52. Downlink Signal Level for Bands 3 and 5 with 10 MHz Bandwidth E-UTRA Band 10 MHz Duplex Mode 3 and dbm/10 MHz FDD Cell power levels on the UXM can be configured in dbm/15 khz and also in dbm per channel bandwidth. So, the signal level is used directly on the UXM with no need for additional calculations. The UE is signaled to transmit at 4 db below maximum power during maximum input level testing as described in Note 1 in Table 7.4A of The connection diagram used for this example procedure with the UXM is shown in Figure Test Steps for Example Procedure 1. Change the UXM parameters described in Table 46. Or, if you have saved this configuration, recall it. See Figure 5. These are the parameters common to all receiver characteristics tests with interband DL CA. 2. Configure the downlink and uplink reference signals for the PCC and the SCC. Cell1 > Scheduling > Subframes Config Check the box preceding Configure All Subframes at Once. Select 26-64QAM for Downlink MCS(Imcs-Qm) of SF 0. All of the downlink subframes are automatically configured with this value. Select 6-QPSK for Uplink MCS(Imcs-Qm) of SF 0. All of the uplink subframes are automatically configured with this value. Uncheck the box preceding Configure All Subframes at Once. Select 25-64QAM for Downlink MCS(Imcs-Qm) of SF 0. Uncheck DL SF Alloc of SF 5.

108 108 Keysight Performing LTE and LTE-Advanced Measurements Application Note Cell2 > Scheduling > Subframes Config Check the box preceding Configure All Subframes at Once. Select 26-64QAM for Downlink MCS(Imcs-Qm) of SF 0. All of the downlink subframes are automatically configured with this value. Uncheck the box preceding Configure All Subframes at Once. Select 25-64QAM for Downlink MCS(Imcs-Qm) of SF 0. Uncheck DL SF Alloc of SF 5. The downlink signals for the PCC and the SCC and the uplink signal for the PCC are now configured to match Table 50 and Table Connect the UE s Rx/Tx antenna through a combiner to both TxRx1 ports on the UXM front panel. Connect the UE s Rx (diversity) antenna through a combiner to both TxRx2 ports on the UXM front panel.the connections are now configured to match Figure Switch on Cell1. Cell1 > Activate Cell Wait for the Cell1 status to change to ON. See Figure Switch on the UE and establish a connection with the PCC. Switch on the UE and wait for Cell1 status to change to CONNECTED. See Figure Switch on Cell2. Cell2 > Activate Cell Wait for the Cell2 status to change to ON. See Figure Apply carrier aggregation to create the PCC and the SCC. Cell1 > Connect > Aggregate SCC Wait for the Cell2 status to change to AGGREGATED. See Figure 59. Cell1 > Activate SCC Wait for the Cell2 status to change to ACTIVATED. See Figure Start transmitting data from the UXM on the downlink. Cell1 > Start DL MAC Padding A down arrow next to the cell tower as shown in Figure 23 signifies that DL MAC padding has started on the PCC. Cell2 > Start DL MAC Padding A down arrow next to the cell tower as shown in Figure 61 signifies that DL MAC padding has started on the SCC. 9. Tell the UE to start transmitting data to the UXM on the uplink. Cell1 > Start UL MAC Padding An up arrow joins the down arrow next to the cell tower as shown in Figure 24 to signify that both DL and UL MAC padding have started on the PCC. 10. Configure the throughput measurement. Cell1 > BLER/Tput > Measurement Setup Change the Measurement Length to 600 and the Measurement Mode to Single. DL OTA 11. Configure the downlink signal levels for the PCC and the SCC to the required high value for maximum input level testing using the menu key. See Figure 25. Cell1 > Power Control Change the Cell Power (Channel BW) to dbm. Cell2 > Power Control Change the Cell Power (Channel BW) to dbm. These values are consistent with Table 52.

109 109 Keysight Performing LTE and LTE-Advanced Measurements Application Note 12. Configure the UE s output power level. Cell1 > Power Control Enter 19 dbm for PUSCH Target Power. See Figure 36. This value drives the UE to transmit at 19 dbm, 4 db below maximum output power. Back 13. If desired, verify that the UE is transmitting at the correct power level. Cell1 > Back > Tx Measurements > Channel Power The UE s output power should be approximately 19 dbm/10 MHz. 14. Measure the average throughput for each component carrier. Cell1 > BLER/Tput > Start Average throughput is shown in kbps for PCC CW0 (the primary component carrier code word 0) and for SCC CW0 (the secondary component carrier code word 0). For these test conditions, the average throughput for each component carrier must be Mbps for the UE to pass this test. Maximum throughput for FDD receiver requirements is defined in Table A as kbps. Statistical requirements define a minimum number of transport blocks, 67, over which to measure throughput assuming no errors (no NACKs and no statdtx). As the number of errors increase, so must the number of transport blocks measured. This relationship is defined in Table G The minimum Measurement Length for BLER/Tput on the UXM is currently 600 DL subframes which is equivalent to 600 transport blocks at maximum throughput. View the number of DL NACKs and statdtx recorded during the throughput measurement in the DL HARQ Feedback table under PCC CW0 and SCC CW0 as shown in Figure 63. Figure 63. Maximum Input Level Results with Interband DL CA

110 110 Keysight Performing LTE and LTE-Advanced Measurements Application Note 15. To repeat for additional test conditions, follow the steps in section After all testing is complete, end the connection. Cell2 > Back > Back > Connect > Stop DL MAC Padding Cell1 > Stop DL MAC Padding Cell1 > Stop UL MAC Padding Cell1 > Deactivate SCC Cell1 > Deaggregate SCC Cell2 > Back > Deactivate Cell Switch off the UE. Cell1 > Deactivate Cell

111 111 Keysight Performing LTE and LTE-Advanced Measurements Application Note 7 References 1. E7515A UXM Wireless Test Set User s and Programmer s Guide, com/main/gated.jspx?lb=1&gatedid= &cc=us&lc=eng&parentcontid= &parentconttype=pt&parentnid= &filetype=viewable. 2. 3GPP TS V ( ) E-UTRA and EPC; Common Test Environments for UE Conformance Testing, series/36.508/36508-c20.zip. 3. 3GPP TS V ( ) E-UTRA UE Conformance Specification Radio Transmission and Reception Conformance Testing, archive/36_series/ / c20.zip.

112 112 Keysight Performing LTE and LTE-Advanced Measurements Application Note 8 Appendices 8.1 Test Channels for Transmitter and Receiver Characteristics Test Channels without Carrier Aggregation Table 53 is derived from sub-clause where the FDD reference test frequencies are defined. Use this table to determine which E-UTRA DL and UL channels need to be tested for each E-UTRA band supported by the UE as required by the specific test. Table 53. FDD Reference Test Channels E-UTRA Band DL E-UTRA Channels UL E-UTRA Channels E-UTRA Channel Bandwidth Low Mid High Low Mid High Lowest 5 MHz 10 MHz Highest MHz 5 MHz MHz MHz MHz MHz MHz MHz MHz MHz MHz MHz MHz MHz MHz MHz MHz MHz MHz 10 MHz MHz 5 MHz MHz 10 MHz MHz 5 MHz MHz MHz MHz MHz MHz 10 MHz MHz 5 MHz MHz MHz MHz 5 MHz MHz MHz MHz 5 MHz MHz 10 MHz MHz MHz MHz 10 MHz MHz 5 MHz MHz 10 MHz

113 113 Keysight Performing LTE and LTE-Advanced Measurements Application Note E-UTRA Band 14 DL E-UTRA Channels UL E-UTRA Channels E-UTRA Channel Bandwidth Low Mid High Low Mid High Lowest 5 MHz 10 MHz Highest MHz 5 MHz MHz 10 MHz 15 Not defined in 3GPP 16 Not defined in 3GPP V Lower Duplex 28 V Upper Duplex MHz 5 MHz MHz 10 MHz MHz 5 MHz MHz MHz MHz 5 MHz MHz MHz MHz 5 MHz MHz MHz MHz 5 MHz MHz MHz MHz 5 MHz MHz MHz MHz MHz MHz MHz MHz 5 MHz MHz 10 MHz MHz MHz MHz MHz MHz MHz MHz MHz MHz MHz MHz 10 MHz MHz MHz MHz MHz MHz MHz MHz MHz

114 114 Keysight Performing LTE and LTE-Advanced Measurements Application Note E-UTRA Band 28 V DL E-UTRA Channels UL E-UTRA Channels E-UTRA Channel Bandwidth Low Mid High Low Mid High Lowest 5 MHz 10 MHz Highest MHz MHz MHz MHz 29 Used only with carrier aggregation 30 Not defined in 3GPP MHz MHz 5 MHz Test Channels with Intraband Carrier Aggregation Table 54 is derived from sub-clause where the FDD reference test frequencies are defined. Information from Table 5.4.2A.1-1 is also used for the intraband CA configurations. Use this table to determine which E-UTRA DL and UL channels need to be tested for each CA configuration and band supported by the UE. Table 54. Intraband FDD DL CA Reference Test Channels CA Config. CA_1C 1 CA_3C 3 CA_7C 7 Band CC N RB DL Channel UL Channel N RB_agg (MHz) BW (MHz) Low High Low High Lowest Highest PCC SCC PCC SCC PCC SCC PCC SCC PCC SCC PCC SCC PCC SCC Test Channels with Interband Carrier Aggregation Table 55 is derived from sub-clause where the FDD reference test frequencies are defined. Information from Table 5.4.2A.1-2 is also used for the interband CA configurations. Use this table to determine which E-UTRA DL and UL channels need to be tested for each CA configuration and band supported by the UE. Table 55. Interband FDD DL CA Reference Test Channels DL Channel UL Channel Bandwidth N RB_agg (MHz) CA Config. Band Combination Mid Mid Set Highest CA_1A-5A CA_1A-18A Bandwidth (MHz)

115 115 Keysight Performing LTE and LTE-Advanced Measurements Application Note CA Config. Band DL Channel UL Channel Bandwidth N RB_agg (MHz) Combination Mid Mid Set Highest Bandwidth (MHz) CA_1A-19A CA_1A-21A CA_1A-26A CA_2A-17A CA_2A-29A CA_3A-5A CA_3A-7A CA_3A-8A CA_3A-19A CA_3A-20A CA_4A-5A CA_4A-7A CA_4A-12A CA_4A-13A CA_4A-17A CA_4A-29A CA_5A-12A CA_5A-17A CA_7A-20A CA_8A-20A NA NA

116 116 Keysight Performing LTE and LTE-Advanced Measurements Application Note CA Config. CA_11A-18A CA_19A-21A Band DL Channel UL Channel Bandwidth N RB_agg (MHz) Combination Mid Mid Set Highest Bandwidth (MHz) 8.2 3GPP Measurement Configurations Table 56 and Table 57 can be used to determine the measurement configurations required for each (sub-)clause of Refer to the configuration ID numbers in the table references to determine the required band(s) Transmitter Characteristics Table 56. 3GPP Measurement Configurations for Tx Characteristics (Sub-) Clause None None Downlink Configuration Uplink Configuration Channel BW Table Ref. Config. ID Channel BW Table Ref. Config. ID See Tables in None None None 1.4 MHz Table 59 3, 5, 7, 9, 11 3 MHz Table , 7 5 MHz Table , 6, 8, MHz Table , 8, MHz Table , 8, MHz Table , 8, MHz Table 59 10, 12, 13, 17, 18, 19 3 MHz Table 60 6, 8, 11, 16, 17, 18 5 MHz Table 61 9, 11, 14, 16, 17, MHz Table 62 9, 11, 15, 19, 20, MHz Table 63 9, 11, 15, 18, 19, MHz Table 64 9, 11, 16, 18, 19, MHz Table MHz Table MHz Table MHz Table MHz Table MHz Table MHz Table MHz Table MHz Table MHz Table MHz Table MHz Table MHz Table MHz Table MHz Table MHz Table MHz Table MHz Table Only required for UE categories 2

117 117 Keysight Performing LTE and LTE-Advanced Measurements Application Note (Sub-) Clause DL: PUCCH UL: PUSCH None DL: PUCCH UL: PUSCH None DL: PUCCH UL: PUSCH None None Downlink Configuration 7 Only required for UE categories 2 Uplink Configuration Channel BW Table Ref. Config. ID Channel BW Table Ref. Config. ID 1.4 MHz Table MHz Table MHz Table MHz Table MHz Table MHz Table MHz Table MHz Table MHz Table MHz Table MHz Table MHz Table MHz Table MHz Table MHz Table MHz Table MHz Table MHz Table MHz Table MHz Table MHz Table MHz Table MHz Table MHz Table 61 12, 13, MHz Table MHz Table 62 12, 13, 14, MHz Table MHz Table 63 12, 13, 14, MHz Table MHz Table 64 12, 13, 14, 15, MHz Table MHz Table 59 4, 6, 13, 15, 16, 19 3 MHz Table MHz Table 60 6, 8, 9, 12, 13, 14 5 MHz Table MHz Table 61 9, 11, 14, 16, 17, MHz Table MHz Table 62 9, 11, 15, 19, 20, MHz Table MHz Table 63 9, 11, 15, 18, 19, MHz Table MHz Table 64 9, 11, 16, 18, 19, MHz Table 59 4, 6 3 MHz Table 60 6, 8 5 MHz Table 61 9, MHz Table 62 9, MHz Table 63 9, MHz Table 64 9, MHz Table MHz Table 59 4, 6 3 MHz Table MHz Table 60 6, 8 5 MHz Table MHz Table 61 9, MHz Table MHz Table 62 9, MHz Table MHz Table 63 9, MHz Table MHz Table 64 9, MHz Table MHz Table MHz Table MHz Table MHz Table MHz Table MHz Table MHz Table MHz Table MHz Table MHz Table MHz Table 64 17

118 118 Keysight Performing LTE and LTE-Advanced Measurements Application Note (Sub-) Clause Downlink Configuration Uplink Configuration Channel BW Table Ref. Config. ID Channel BW Table Ref. Config. ID None See Tables in Only required for UE categories MHz Table 59 10, 12, 13, 17, 18, 19 3 MHz Table 60 6, 8, 9, 12, 13, 14 5 MHz Table 61 9, 11, 14, 16, 17, MHz Table 62 9, 11, 15, 19, 20, MHz Table 63 9, 11, 15, 18, 19, MHz Table 64 9, 11, 16, 8, 19, Receiver Characteristics without Carrier Aggregation Table 57. 3GPP Measurement Configurations for Rx Characteristics without CA (Sub-) Clause Downlink Configuration Uplink Configuration Channel BW Table Ref. Config. ID Channel BW Table Ref. Config. ID 1.4 MHz Table MHz Table MHz Table MHz Table 66 3, 6 5 MHz Table MHz Table 66 9, 11, 13, MHz Table MHz Table 66 17, 19, 21, 23, MHz Table MHz Table 66 27, 29, 31, MHz Table MHz Table 66 35, 37, 39, 41, MHz Table MHz Table MHz Table MHz Table 66 4, 5, 7 5 MHz Table MHz Table MHz Table MHz Table 65 6 (UE cat 1) 7 (UE cat > 1) 9 (UE cat 1) 10 (UE cat > 1) 12 (UE cat 1) 13 (UE cat > 1) 15 (UE cat 1) 17 UE cat > 1) 5 MHz Table 66 8, 10, 12, MHz Table 66 16, 18, 20, 22, MHz Table 66 26, 28, 30, MHz Table 66 34, 36, 38, 40, MHz Table MHz Table MHz Table MHz Table MHz Table MHz Table 66 10, 12, MHz Table MHz Table 66 16, 20, 22, MHz Table MHz Table 66 26, 28, 30, MHz Table MHz Table 66 34, 36, 38, 40, 42

119 119 Keysight Performing LTE and LTE-Advanced Measurements Application Note 8.3 Modulation and RB Allocation for Transmitter Characteristics without Carrier Aggregation The following tables provide reference material for determining downlink and uplink configurations when testing transmitter characteristics. Table 58 through Table 64 can be used to quickly determine which E-UTRA bands, test frequencies, modulation and RB allocations need to be tested for each channel bandwidth. The configuration numbers in the first column are referenced in the example test procedures in this application note Downlink Measurement Configurations Table 58 is derived from the required transmitter characteristics downlink configurations and from Tables A and A.3.2A-1. Table 58. Downlink Measurement Configurations for Tx Characteristics DL Conf. Number Ch BW Modulation RB Allocation RB Start Payload Size (bits) MCS (Imcs-Qm) on UXM Cell1 > Scheduling > DL 1st Codeword SF 0 SF 1-4 SF 5 SF 6-9 SF 0 SF 1-4 SF 5 SF MHz QPSK QPSK 1-QPSK 1-QPSK 1-QPSK MHz QPSK n/a QPSK 4-QPSK Off 4-QPSK 3 3 MHz QPSK QPSK 5-QPSK 5-QPSK 5-QPSK 4 3 MHz QPSK n/a QPSK 5-QPSK Off 5-QPSK 5 5 MHz QPSK QPSK 5-QPSK 5-QPSK 5-QPSK 6 5 MHz QPSK n/a QPSK 5-QPSK Off 5-QPSK 7 10 MHz QPSK QPSK 5-QPSK 5-QPSK 5-QPSK 8 10 MHz QPSK n/a QPSK 5-QPSK Off 5-QPSK 9 15 MHz QPSK QPSK 5-QPSK 5-QPSK 5-QPSK MHz QPSK n/a QPSK 5-QPSK Off 5-QPSK MHz QPSK QPSK 5-QPSK 5-QPSK 5-QPSK MHz QPSK n/a QPSK 5-QPSK Off 5-QPSK Uplink Measurement Configurations Table 59 through Table 64 are derived from the required transmitter characteristics uplink configurations and from Tables A , A , A and A Because of the number of possible test configurations, separate tables are shown for each possible channel bandwidth. Table 59. Uplink 1.4 MHz Measurement Configurations for Tx Characteristics UL 1.4 MHz Conf. Number MHz Ch BW E-UTRA Band Test Frequency Modulation RB Allocation RB Start 2-5, 8, 12, 23, 25-27, 31 Payload Size (bits) SF 0-9 SF 0-9 Mid n/a n/a n/a n/a n/a MHz 4-5, 23, 27, 31 Low, Mid QPSK QPSK MHz 2-3, 8, 12, Low, Mid, High QPSK QPSK MHz MHz MHz 2-5, 8, 12, 23, 25-27, , 8, 12, 23, 25-27, , 8, 12, 23, 25-27, 31 Low, Mid, High QPSK QPSK High QPSK QPSK Low, Mid, High QPSK QPSK MHz 2-3, 8, 12, Mid QPSK QPSK MCS (Imcs-Qm) on UXM Cell1 > Scheduling > UL 1st Codeword

120 120 Keysight Performing LTE and LTE-Advanced Measurements Application Note UL 1.4 MHz Conf. Number MHz Ch BW E-UTRA Band Test Frequency Modulation RB Allocation RB Start 2-5, 8, 12, 23, 25-27, 31 Payload Size (bits) SF 0-9 SF 0-9 Mid QPSK QPSK MHz 4-5, 23, 27, 31 Low, Mid QPSK QPSK MHz 2-5, 8, 12, 23, 25-27, 31 Low, Mid, High QPSK QPSK MHz 4-5, 23, 27, 31 High QPSK QPSK MHz MHz MHz MHz MHz MHz MHz MHz 2-5, 8, 12, 23, 25-27, , 8, 12, 23, 25-27, , 8, 12, 23, 25-27, , 8, 12, 23, 25-27, , 8, 12, 23, 25-27, , 8, 12, 23, 25-27, , 8, 12, 23, 25-27, , 8, 12, 23, 25-27, 31 Low, Mid, High QPSK QPSK Low, Mid, High QPSK QPSK Mid QPSK QPSK MCS (Imcs-Qm) on UXM Cell1 > Scheduling > UL 1st Codeword Low, Mid, High 16QAM QAM Low, Mid, High 16QAM QAM Low, Mid, High 16QAM QAM Low, Mid, High 16QAM QAM Low, Mid, High 16QAM QAM Table 60. Uplink 3 MHz Measurement Configurations for Tx Characteristics UL 3 MHz Conf. Number Ch BW E-UTRA Band Test Frequency Modulation RB Allocation RB Start Payload Size (bits) SF 0-9 SF MHz 28 Mid n/a n/a n/a n/a n/a 2 3 MHz 28 Low, Mid QPSK QPSK 3 3 MHz 28 High QPSK QPSK 4 3 MHz 28 Low, Mid QPSK QPSK 5 3 MHz 28 Mid QPSK QPSK 6 3 MHz 28 Low, Mid, High QPSK QPSK 7 3 MHz 28 High QPSK QPSK 8 3 MHz 28 Low, Mid, High QPSK QPSK 9 3 MHz 28 Low, Mid, High QPSK QPSK 10 3 MHz 28 Mid QPSK QPSK 11 3 MHz 2-5, 8, 12, 23, 25-28, 31 Mid QPSK QPSK MCS (Imcs-Qm) on UXM Cell1 > Scheduling > UL 1st Codeword 12 3 MHz 28 Low, Mid, High 16QAM QAM 13 3 MHz 28 Low, Mid, High 16QAM QAM 14 3 MHz 28 Low, Mid, High 16QAM QAM

121 121 Keysight Performing LTE and LTE-Advanced Measurements Application Note Table 61. Uplink 5 MHz Measurement Configurations for Tx Characteristics UL 5 MHz Conf. Number Ch BW E-UTRA Band Test Frequency Modulation RB Allocation RB Start Payload Size (bits) SF 0-9 SF MHz 1-14, 17-28, 31 Mid n/a n/a n/a n/a n/a 2 5 MHz 3 5 MHz 4 5 MHz 5 5 MHz 6 5 MHz 1, 4-6, 9-11, 13-14, 17-19, 21, 23-24, 27-28, , 7-8, 12, 20, 22, , 4-6, 9-11, 13-14, 17-19, 21, 23-24, 27-28, , 7-8, 12, 20, 22, , 7-8, 12, 20, 22, Low, Mid QPSK QPSK Low, Mid, High QPSK QPSK High QPSK QPSK Low, Mid, High QPSK QPSK Mid QPSK QPSK 7 5 MHz 1-14, 17-28, 31 Mid QPSK QPSK 8 5 MHz 1, 4-6, 9-11, 13-14, 17-19, 21, 23-24, 27-28, 31 Low, Mid QPSK QPSK 9 5 MHz 1-14, 17-28, 31 Low, Mid, High QPSK QPSK 10 5 MHz 1, 4-6, 9-11, 13-14, 17-19, 21, 23-24, 27-28, 31 High QPSK QPSK 11 5 MHz 1-14, 17-28, 31 Low, Mid, High QPSK QPSK 12 5 MHz 1-14, 17-28, 31 Low, Mid, High QPSK QPSK 13 5 MHz 1-14, 17-28, 31 Low, Mid, High QPSK QPSK 14 5 MHz 1-14, 17-28, 31 Low, Mid, High QPSK QPSK 15 5 MHz 1-14, 17-28, 31 Mid QPSK QPSK MCS (Imcs-Qm) on UXM Cell1 > Scheduling > UL 1st Codeword 16 5 MHz 1-14, 17-28, 31 Low, Mid, High 16QAM QAM 17 5 MHz 1-14, 17-28, 31 Low, Mid, High 16QAM QAM 18 5 MHz 1-14, 17-28, 31 Low, Mid, High 16QAM QAM

122 122 Keysight Performing LTE and LTE-Advanced Measurements Application Note Table 62. Uplink 10 MHz Measurement Configurations for Tx Characteristics UL 10 MHz Conf. Number 1 10 MHz 2 10 MHz Ch BW E-UTRA Band Test Frequency Modulation RB Allocation RB Start 5-6, 8, 11-14, 17, 24, , 11, 13-14, 17, 24, 27 Payload Size (bits) SF 0-9 SF 0-9 Mid n/a n/a n/a n/a n/a Low, Mid QPSK QPSK 3 10 MHz 8, 12 Low, Mid, High QPSK QPSK 4 10 MHz 5-6, 11, 13-14, 17, 24, 27 High QPSK QPSK 5 10 MHz 8, 12 Low, Mid, High QPSK QPSK 6 10 MHz 8, 12 Mid QPSK QPSK 7 10 MHz 8 10 MHz 5-6, 8, 11-14, 17, 24, , 11, 13-14, 17, 24, 27 Mid QPSK QPSK Low, Mid QPSK n/a 9 10 MHz 1-14, Low, Mid, High QPSK n/a MHz 5-6, 11, 13-14, 17, 24, 27 High QPSK n/a MHz 1-14, Low, Mid, High QPSK n/a MHz 1-14, Low, Mid, High QPSK QPSK MHz 1-14, Low, Mid, High QPSK QPSK MHz 1-14, Low, Mid, High QPSK QPSK MHz 1-14, Low, Mid, High QPSK QPSK MHz 17 10MHz 5-6, 8, 11-14, 17, 24, , 8, 11-14, 17, 24, 27 Low, Mid, High QPSK QPSK Mid QPSK QPSK MHz 1-14, Mid QPSK QPSK MCS (Imcs-Qm) on UXM Cell1 > Scheduling > UL 1st Codeword MHz 1-14, Low, Mid, High 16QAM QAM MHz 1-14, Low, Mid, High 16QAM QAM MHz 1-14, Low, Mid, High 16QAM QAM

123 123 Keysight Performing LTE and LTE-Advanced Measurements Application Note Table 63. Uplink 15 MHz Measurement Configurations for Tx Characteristics UL 15 MHz Conf. Number Ch BW E-UTRA Band Test Frequency Modulation RB Allocation RB Start Payload Size (bits) SF 0-9 SF MHz 18-19, 21, 26 Mid n/a n/a n/a n/a n/a 2 15 MHz 18-19, 21 Low, Mid QPSK QPSK 3 15 MHz 26 Low, Mid, High QPSK QPSK 4 15 MHz 18-19, 21 High QPSK QPSK 5 15 MHz 26 Low, Mid, High QPSK QPSK 6 15 MHz 26 Mid QPSK QPSK 7 15 MHz 18-19, 21, 26 Mid QPSK QPSK 8 15 MHz 18-19, 21 Low, Mid QPSK QPSK 9 15 MHz 18-19, 21, 26 Low, Mid, High QPSK QPSK MHz 18-19, 21 High QPSK QPSK MHz 18-19, 21, 26 Low, Mid, High QPSK QPSK MHz 18-19, 21, 26 Low, Mid, High QPSK QPSK MHz 18-19, 21, 26 Low, Mid, High QPSK QPSK MHz 18-19, 21, 26 Low, Mid, High QPSK QPSK MHz 18-19, 21, 26 Low, Mid, High QPSK QPSK MHz 18-19, 21, 26 Mid QPSK QPSK MHz 1-4, 7, 9-10, 18-23, 25-26, 28 Mid QPSK QPSK MCS (Imcs-Qm) on UXM Cell1 > Scheduling > UL 1st Codeword MHz 18-19, 21, 26 Low, Mid, High 16QAM QAM MHz 18-19, 21, 26 Low, Mid, High 16QAM QAM MHz 18-19, 21, 26 Low, Mid, High 16QAM QAM

124 124 Keysight Performing LTE and LTE-Advanced Measurements Application Note Table 64. Uplink 20 MHz Measurement Configurations for Tx Characteristics UL 20 MHz Conf. Number 1 20 MHz Ch BW E-UTRA Band Test Frequency Modulation RB Allocation RB Start 1-4, 7, 9-10, 20, 22-23, 25, 28 Payload Size (bits) SF 0-9 SF 0-9 Mid n/a n/a n/a n/a n/a 2 20 MHz 1, 4, 9-10, 23, 28 Low, Mid QPSK QPSK 3 20 MHz 2-3, 7, 20, 22, 25 Low, Mid, High QPSK QPSK 4 20 MHz 1, 4, 9-10, 23, 28 High QPSK QPSK 5 20 MHz 2-3, 7, 20, 22, 25 Low, Mid, High QPSK QPSK 6 20 MHz 2-3, 7, 20, 22, 25 Mid QPSK QPSK 7 20 MHz 1-4, 7, 9-10, 20, 22-23, 25, 28 Mid QPSK QPSK 8 20 MHz 1, 4, 9-10, 23, 28 Low, Mid QPSK QPSK 9 20 MHz 1-4, 7, 9-10, 20, 22-23, 25, 28 Low, Mid, High QPSK QPSK MHz 1, 4, 9-10, 23, 28 High QPSK QPSK MHz MHz MHz MHz MHz MHz MHz MHz MHz MHz 1-4, 7, 9-10, 20, 22-23, 25, , 7, 9-10, 20, 22-23, 25, , 7, 9-10, 20, 22-23, 25, , 7, 9-10, 20, 22-23, 25, , 7, 9-10, 20, 22-23, 25, , 7, 9-10, 20, 22-23, 25, , 7, 9-10, 20, 22-23, 25, , 7, 9-10, 20, 22-23, 25, , 7, 9-10, 20, 22-23, 25, , 7, 9-10, 20, 22-23, 25, 28 Low, Mid, High QPSK QPSK Low, Mid, High QPSK QPSK Low, Mid, High QPSK QPSK Low, Mid, High QPSK QPSK Low, Mid, High QPSK QPSK Low, Mid, High QPSK QPSK Mid QPSK QPSK MCS (Imcs-Qm) on UXM Cell1 > Scheduling > UL 1st Codeword Low, Mid, High 16QAM QAM Low, Mid, High 16QAM QAM Low, Mid, High 16QAM QAM

125 125 Keysight Performing LTE and LTE-Advanced Measurements Application Note 8.4 Modulation and RB Allocation for Receiver Characteristics without Carrier Aggregation Table 65 and Table 66 can be used to quickly determine which E-UTRA bands, test frequencies, modulation and RB allocations need to be tested for each channel bandwidth. The configuration numbers are referenced in the example test procedures in this application note Downlink Measurement Configurations Table 65 is derived from the required receiver characteristics downlink configurations and from Tables A and A.3.2A-1. Table 65. Downlink Measurement Configurations for Rx Characteristics without CA DL Conf. Number Ch BW Modulation RB Allocation RB Start Payload Size (bits) MCS (Imcs-Qm) on UXM Cell1 > Scheduling > DL 1st Codeword SF 0 SF 1-4 SF 5 SF 6-9 SF 0 SF 1-4 SF 5 SF MHz QPSK n/a QPSK 4-QPSK Off 4-QPSK MHz 64-QAM 6 0 n/a 2984 n/a 2984 Off 23-64QAM Off 23-64QAM 3 3 MHz QPSK n/a QPSK 5-QPSK Off 5-QPSK 4 3 MHz 64-QAM n/a QAM 25-64QAM Off 25-64QAM 5 5 MHz QPSK n/a QPSK 5-QPSK Off 5-QPSK 6 5 MHz 64-QAM n/a QAM 25-64QAM Off 25-64QAM 7 5 MHz 64-QAM n/a QAM 25-64QAM Off 25-64QAM 8 10 MHz QPSK n/a QPSK 5-QPSK Off 5-QPSK 9 10 MHz 64-QAM n/a QAM 26-64QAM Off 26-64QAM MHz 64-QAM n/a QAM 26-64QAM Off 26-64QAM MHz QPSK n/a QPSK 5-QPSK Off 5-QPSK MHz 64-QAM n/a QAM 26-64QAM Off 26-64QAM MHz 64-QAM n/a QAM 27-64QAM Off 27-64QAM MHz QPSK n/a QPSK 5-QPSK Off 5-QPSK MHz 64-QAM n/a QAM 26-64QAM Off 26-64QAM MHz 64-QAM n/a QAM 26-64QAM Off 26-64QAM MHz 64-QAM n/a QAM 26-64QAM Off 26-64QAM

126 126 Keysight Performing LTE and LTE-Advanced Measurements Application Note Uplink Measurement Configurations Table 66 is derived from the required receiver characteristics uplink configurations and from Tables A , A , A and A Table 66. Uplink Measurement Configurations for Rx Characteristics without CA UL Conf. Number Ch BW E-UTRA Band Test Frequency Modulation RB Allocation RB Start Payload Size (bits) SF 0-9 SF MHz 2-5, 8, 12, 23, 25-27, 31 Low, Mid, High QPSK QPSK MHz 2-5, 8, 12, 23, 25-27, 31 Mid QPSK QPSK 3 3 MHz 31 Low, Mid, High QPSK QPSK 4 3 MHz 31 Mid QPSK QPSK 5 3 MHz 28 Mid QPSK QPSK 6 3 MHz 2-5, 8, 12, 23, Low, Mid, High QPSK QPSK 7 3 MHz 2-5, 8, 12, 23, Mid QPSK QPSK 8 5 MHz 31 Mid QPSK QPSK 9 5 MHz 31 Low, Mid, High QPSK QPSK 10 5 MHz 14 Mid QPSK QPSK 11 5 MHz 14 Low, Mid, High QPSK QPSK 12 5 MHz 12-13, 17 Mid QPSK QPSK 13 5 MHz 12-13, 17 Low, Mid, High QPSK QPSK 14 5 MHz 1-11, Mid QPSK QPSK 15 5 MHz 1-11, Low, Mid, High QPSK QPSK MHz 14 Mid QPSK QPSK MHz 14 Low, Mid, High QPSK QPSK MHz 12, 17 Mid QPSK QPSK MHz 12, 17 Low, Mid, High QPSK QPSK MHz 13, 20 Mid QPSK QPSK MHz 13, 20 Low, Mid, High QPSK QPSK MHz 5-6, 8, 11, 18-19, 21, Mid QPSK QPSK MHz 5-6, 8, 11, 18-19, 21, Low, Mid, High QPSK QPSK MHz 1-4, 7, 9-10, Mid QPSK QPSK MHz 1-4, 7, 9-10, Low, Mid, High QPSK QPSK MHz 20 Mid QPSK QPSK MHz 20 Low, Mid, High QPSK QPSK MHz 18-19, 21, 26, 28 Mid QPSK QPSK MHz 18-19, 21, 26, 28 Low, Mid, High QPSK QPSK MHz 2-3, 9, 22, 25 Mid QPSK QPSK MHz 2-3, 9, 22, 25 Low, Mid, High QPSK QPSK MHz 1, 4, 7, 10, 23 Mid QPSK QPSK MHz 1, 4, 7, 10, 23 Low, Mid, High QPSK QPSK MHz 20 Mid QPSK QPSK MHz 20 Low, Mid, High QPSK QPSK MHz 28 Mid QPSK QPSK MHz 28 Low, Mid, High QPSK QPSK MHz 2-3, 9, 22, 25 Mid QPSK QPSK MHz 2-3, 9, 22, 25 Low, Mid, High QPSK QPSK MHz 7 Mid QPSK QPSK MHz 7 Low, Mid, High QPSK QPSK MHz 1, 4, 10, 23 Mid QPSK QPSK MHz 1, 4, 10, 23 Low, Mid, High QPSK QPSK MCS (Imcs-Qm) on UXM Cell1 > Scheduling > UL 1st Codeword

127 127 Keysight Performing LTE and LTE-Advanced Measurements Application Note 8.5 Troubleshooting RF Measurements More information about the UXM and troubleshooting is available in the UXM manual, on the UXM, and from the UXM product page at The UXM User s and Programmer s Guide (see Section 7) is another document that is useful for troubleshooting. Or contact your Keysight sales representative for technical support UE Connection If the UE does not successfully connect to the UXM (see Figure 7) or has trouble maintaining a connection, it may be useful to look at the protocol messages sent using signaling. The UXM provides a summary of messages sent between the UE and the UXM. An example is shown in Figure 64. Figure 64. Message Summary To view the latest messages, access the message summary. Cell1 > Activate Cell Cell > Message Summary During a successful connection setup, the UXM sends the SIB messages to the UE. Once the UE is switched on, it sends PRACHs to the UXM. The UXM responds and the call setup proceeds Low UE Output Power One explanation for lower-than-expected transmitted UE output power is the test system configuration. It may include significant losses due to cabling and use of splitters or couplers external to the UXM. Compensation for external cable losses are configured on the UXM Control Panel. The LTE/LTE-A application controls whether cable loss compensation is enabled using the System > Config > Cable Loss Compensation setting. Note that this setting is non-volatile and is not affected by a preset. Other explanations are loose cabling; interference from other UEs, test equipment, or networks; or poor connection between the UE and UXM.