Be prepared for Sigfox Verified TM Certification

Transcription

1 Version September 22, 2017 Be prepared for Sigfox Verified TM Certification Public Use

2 Contents 1 Introduction Scope Acronyms and abbreviations Be prepared Step by Step Step 1 : Get the Sigfox modem specifications Step 2 : Integrate the Sigfox Protocol Library Candidate Device Hardware prerequisites Candidate Device Software prerequisites Step 3 : Validate your Sigfox device Step 4 : Prepare information on your candidate device Candidate Device information Candidate Device documentation Step 5 : Send Candidate Device to Sigfox Step 6 : Get your Sigfox Verified TM certificate : Filing Appendix 10 1

3 1 Introduction 2

4 1.1 Scope There are various phases to be followed to build a Sigfox device. When building a Module or Reference Design, the Device Maker has to present its device to the Sigfox Verified TM certification. This certification handles all the Sigfox RF and protocol tests executed in conducted mode. You have to contact a Sigfox Sales representative to sign a Sigfox Verified TM program. This document intents to describe all the pre-requisites for the Device Maker to prepare a Sigfox Verified TM certification. 1.2 Acronyms and abbreviations - 2GFSK: 2-Level Gaussian Frequency Shift Keying - AES: Advanced Encryption Standard - Att: Attenuator - CAB: Client Application Board - CBC: Cipher Block Chaining - CS: Carrier Sense - DBPSK: Differential Binary Phase-Shift Keying - DUT: Device Under Test - LBT: Listen Before Talk - NVM: Non Volatile memory - PAC: Porting Authorization Code - PER: Packet Error Rate - PMR: Private Mobile Radio - RF: Radio Frequency - SMIQ: Vector Signal Generator - SOC: System On Chip - UNB_MODEM: Ultra Narrow Band MODEM - UNBT: Ultra Narrow Band Transceiver - RSA: Radio Signal Analyzer - Fd: DUT Frequency - Fe: Equipment Frequency - RSSI_dut: DUT RSSI - RSSI_eq: Equipment RSSI - SIGFOX Message: Three frames with payload A3B 3

5 2 Be prepared Step by Step 4

6 2.1 Step 1 : Get the Sigfox modem specifications You can get the latest Sigfox Modem Specification per Radio Configuration on the Sigfox BUILD website : ( Sigfox Verified modem specification - for RF and Protocol (i.e.: PRS_UNB_MODEM_RC1_UDL.pdf ) Sigfox Verified modem test plan (i.e.: PTP_UNB_MODEM_RC1_UDL.pdf ) Ensure you read those documents properly to match all Sigfox Requirements on your device. Both software and hardware concerns need to be studied to verified that final End Product will pass the Sigfox Verified TM certification. The Radio Configuration are set as below : Parameter RC1 RC2 RC3a RC4 Uplink Central Frequency(MHz) Downlink Central Frequency(MHz) Spectrum Access DC 1% FH LBT FH Also verify that you provide all the pre-requisites mentionned in next sections before delivering your candidate device to the Test Lab. 2.2 Step 2 : Integrate the Sigfox Protocol Library Once the library has been built for your microprocessor (Sigfox only delivers binary format), integrate it and code the RF driver functions. For that phase, many RF Silicon founders propose Sigfox compatible Modulation code : contact them to get the latest update of their code. At least, ensure you followed all the pre-requisites to Sigfox Verified TM test execution and production which are listed below Candidate Device Hardware prerequisites [PREREQUISITE-10] RF connector UNB_MODEM must have an RF connector (SMA,... ) to be able to perform measure- ments in conducted mode. [PREREQUISITE-11] Candidate Power Supply UNB_MODEM candidate must be powered by the same power supply as the final product. If needed, this power supply has to be provided to test laboratory. [PREREQUISITE-12] Prototype closed to pre-production sample 5

7 UNB_MODEM candidate must be as close as possible to the pre-production sample Candidate Device Software prerequisites [PREREQUISITE-20] Software version flashed in it. UNB_MODEM must have the software version, candidate for the certification flashed [PREREQUISITE-21] Software version check UNB_MODEM must provide a way to check the Software version number flashed. version is applicable only for the Sigfox Modulation and Protocol modem critical part which means that if the same microprocessor contains both Application and Sigfox code, a specific version has to be used to label Sigfox Modulation and protocol part. [PREREQUISITE-22] Frequency Offset Calibration parameter Manufacturer has to provide a way to set the Frequency offset of the device for Calibration purpose if needed (This offset should be apply to Uplink and Downlink Frequency). This will be mainly used at the manufacturing step. [PREREQUISITE-23] Continuous Modulation CM test mode available specific frequency. Manufacturer has to provide a way to generate a continuous modulated signal at a [PREREQUISITE-24] RX RSSI Calibration UNB_MODEM candidate must be calibrated in RX RSSI level +/- 2 dbm. [PREREQUISITE-25] RX RSSI Offset Calibration parameter purpose. Manufacturer has to provide a way to set the RX RSSI offset of the device for Calibration [PREREQUISITE-26] RX RSSI value available mode. Manufacturer has to provide a way to get the RSSI level through the RX-GFSKtest [PREREQUISITE-27] RX GFSK test mode available the RX-GFSKtest mode. Manufacturer has to provide a way to test the downlink feature on the modem through 6

8 [PREREQUISITE-28] RX GFSK Reporting UNB_MODEM candidate must provide a way to know that the frame is received. [PREREQUISITE-29] TX BPSK test mode available Manufacturer has to provide a way to test the uplink modulated feature on the modem through the Test Mode TX-BPSKtest mode. [PREREQUISITE-30] Test Modes availability UNB_MODEM must provide an interface to activate all SIGFOX Library test modes. This can be done through AT commands, Built-in tests (hardcoded functions), GPIOs,... [PREREQUISITE-31] Continuous Wave CW test mode available at a specific frequency. Manufacturer has to provide a way to generate a continuous wave unmodulated signal [PREREQUISITE-32] NVM ID and KEY UNB_MODEM must include a Non Volatile Read Only Memory to store ID (32bits).ID must be Read Only. UNB_MODEM must include a Non Volatile Read Only Memory to store Key(128bits). KEY must be Read Only by AES Module. Manufacturer has to follow the Security Guidelines (Sigfox-Best_Current_Practices_v1.0.pdf) that can be found in Sigfox Verified Package. [PREREQUISITE-33] Specific ID and Key UNB_MODEM must be flashed with a specific test Key and test ID for the certification. In case Secure Element is used for the device, provider has to deliver the Device Maker with Test Samples flashed with these values. ID = 0xFEDCBA98 ( ID[3]=FE, ID[0]=98 ) KEY = ABCDEF ABCDEF ( KEY[0]=01, KEY[15]=EF ) [PREREQUISITE-34] Public Key UNB_MODEM must be flashed with a second key called public key for authentication with ID and public key. The device must allow a way to switch from private to public key to be compatible with SIGFOX SDR DONGLE. This requirement is only applicable for Module, Reference Design and Development solutions. In case Secure Element is used for the device, this feature is provided by the Secure Element Maker. KEY = AABBCCDDEEFF ( KEY[0]=00, KEY[15]=FF ) [PREREQUISITE-35] Access to ID and PAC 7

9 UNB_MODEM must provide a way to get ID and initial PAC. ID = Unique ID (4 bytes length) PAC = Initial PAC used for Device registering on SIGFOX network (8 bytes length) : mandatory to give to customer for registering [PREREQUISITE-36] Access to Configurability of the Sigfox Library In case of UNB_MODEM as a Module, it must provide a way to get and set all parameters that are configurable in the Sigfox Library ( i.e: tx_repeat, config_words... ). [PREREQUISITE-37] Short Message Configuration Verified TM. UNB_MODEM must be configured in Short Message to go through the Sigfox 2.3 Step 3 : Validate your Sigfox device The Sigfox Verified TM certification checks all the requirements defined in Sigfox Verified modem specification that the Device Maker loaded in Step 1. Sigfox Verified modem Test Plan described all the tests that are executed by Sigfox. To validate almost all those requirements and prevent the Device Maker to be out of specification, Sigfox proposes a small RF USB dongle (SDR DONGLE) combined with the Radio Signal Analyzer tool (RSA) that runs on a computer. Check the Sigfox BUILD website to get this equipement ( 2.4 Step 4 : Prepare information on your candidate device This section describes all the information to be delivered to the Sigfox laboratory for the test execution Candidate Device information [PREREQUISITE-40] Input Power Supply Manufacturer has to provide the nominal value and the range of input power supply voltage that will be available for the final customer. (Operational Test will be executed on min, max and nominal values) [PREREQUISITE-41] Input Power Supply Testability previous pre-requisite. Manufacturer has to provide a way to test the full range of power supply delivered in [PREREQUISITE-42] Operational Temperature 8

10 Manufacturer has to provide the range of temperature where the device is operational. [PREREQUISITE-43] Config Word information words ). UNB_MODEM must provide all configurable parameters value in the protocol ( config Candidate Device documentation [PREREQUISITE-50] Oscillator datasheet Manufacturer has to provide the datasheet of the radio oscillator. [PREREQUISITE-51] User Manual The Device Maker must provide a User Manual with all the information to be able to execute the tests. The final certification will be only apply to the commands used during SIGFOX Test Execution. Any other command, part of the User Manual will not be considered. 2.5 Step 5 : Send Candidate Device to Sigfox Before sending the device, the Device Maker has to ensure he based its device on the latest Sigfox Specification (mentionned in Step 1). 2.6 Step 6 : Get your Sigfox Verified TM certificate : Filing Sigfox delivers the Sigfox Verified TM certificate after the execution of all the certification tests. Device Maker will have to deliver all technicals documents (BOM, Schematic...) to get its certificate. 9

11 3 Appendix 10

12 Sigfox VerifiedTM Checklist Print this checklist, fill it in with the appropriate information (value, commands or check mark when applicable) and provide it to Sigfox along with your candidate device. Prerequisite Type Value / Commands / Check Mark [PREREQUISITE-10] RF connector [PREREQUISITE-11] Candidate Power Supply [PREREQUISITE-12] Prototype closed to pre-production sample [PREREQUISITE-20] Software version flashed [PREREQUISITE-21] Software version check [PREREQUISITE-22] Frequency Offset Calibration parameter [PREREQUISITE-23] Continuous Modulation CM test mode available [PREREQUISITE-24] RX RSSI Calibration DOWNLINK-MODEM [PREREQUISITE-25] RX RSSI Offset Calibration parameter DOWNLINK-MODEM [PREREQUISITE-26] RX RSSI value available DOWNLINK-MODEM [PREREQUISITE-27] RX GFSK test mode available DOWNLINK-MODEM [PREREQUISITE-28] RX GFSK Reporting DOWNLINK-MODEM [PREREQUISITE-29] TX BPSK test mode available [PREREQUISITE-30] Test Modes availability [PREREQUISITE-31] Continuous Wave CW test mode available [PREREQUISITE-32] NVM ID and KEY [PREREQUISITE-33] Specific ID and Key [PREREQUISITE-34] Public Key [PREREQUISITE-35] Access to ID and PAC [PREREQUISITE-36] Access to Configurability of the Sigfox Library [PREREQUISITE-37] Short Message Configuration [PREREQUISITE-40] Input Power Supply [PREREQUISITE-41] Input Power Supply Testability [PREREQUISITE-42] Operational Temperature [PREREQUISITE-43] Config Word information [PREREQUISITE-50] Oscillator datasheet [PREREQUISITE-51] User Manual HW HW HW or SE (NO SE) INFO INFO INFO INFO DOC DOC 11