UMTS Forum IMT-2000 spectrum activities Christoph Legutko Siemens AG Director Frequency Policy 1 Why does the UTMS Forum investigate radio spectrum? Growth of terrestrial mobile services always underestimated Industry consensus for spectrum calculations required Spectrum could be overloaded within the next five years 2 1
UMTS Forum Studies 30 Reports on... Regulatory, Frequency Spectrum Services and Applications Market and Technology User Behaviour White Papers Evolution 2G 3G Spectrum 3 IMT-2000 Frequency Spectrum after WRC2000 800 80 900 90 1000 1700 170 1800 180 1900 190 2000 200 2100 210 2200 220 200 20 2600 260 2700 ITU Allocations IMT IMT Europe GSM GSM 1800 DECT UMTS UMTS under study China Cellular GSM GSM 1800, PCS IMT under study Japan, Korea (w/o PHS) PDC PDC PHS IMT under study North America Cellular AWS P C S A DB EF C A DB EF C AWS under study Brasil, Venezuela Cellular Cell. Cell. IMT 2000 IMT 2000 4 2
Spectrum for cellular services IMT-2000 NMT AMPS Cellular 824-849 / 869-894 Σ=0 MHz GSM 900 880-91 / 92-960 Σ=70 MHz PDC (Japan) 843-940 1429-143/ 1477-101 Σ=14 MHz GSM 1800 1710-178 180-1880 Σ=10 MHz PCS 1900 GSM 1900 180-1910 1930-1990 Σ=140 MHz 188-1980 +1980-202 +2110-2200 Σ=230 MHz IMT - 2000 200-2690 Σ=190 MHz 142 countries 40 countries 16 countries 0 countries S=Total Bandwidth (MHz) SPECTRUM World Harmonisation Source: Siemens 2002 Advanced Wireless Services NA GDP US $ 9,3 trillions 31 % of world Pop 304 million CDMA2000, EDGE LA GDP US $ 1,2 trillions 4 % of world Pop 317 million UMTS GDP US $ 19,7 trillions 6 % of world Pop,4 billion UMTS 2002 UMTS 200 6 3
Why new Spectrum? MHz 600 00 400 Many Services, More Capacity Video Sound 300 200 Same Service, More Capacity Data 100 Voice Voice 0 Voice Analogue Digital IP 1G 2G 3G 7 3G Operator Spectrum Scenarios Urban sector needs 20 30 Mbps /km² (000 users/km², Ø = 100 300 kbps) Operator Spectrum Scenario [MHz] Paired 2 x 10 2 x 10 2 x 1 2 x 1 2 x 20 2 x 20 Unpaired - - - Traffic Capacity Mbps/km² 1) 13 16 19 23 26 30 1) Uplink & Downlink/Urban sector/cell Ø = 0.6 km; Spectral Efficiency 180 kbps/mhz cell 3G Service Capability Limited Some restrictions Full Full Licenses granted < < 20 > 80 < 8 4
Wireless must trade-off between data throughput, mobility and range Mobile radio access networks are designed to meet certain maximum requirements for grade of mobility and range WLANs are designed for high data rates, low ranges and generally low mobility Mobility & Range High Speed Vehicular Rural Vehicular Urban GSM Pedestrian Indoor Fixed urban Personal Area DECT 3G/UMTS BlueTooth 0. 2 IEEE 802.11a BRAN Hiperlan2 BRAN Hiperaccess 20 1 Mbps Total data rate per cell 9 WLAN and 3G will be complementary WLAN provides a viable cordless data solution for quasi stationary use: for corporate and campus scenarios for nomadic (business) users in the public hotspot environments The coupling of WLAN and cellular should be as soft as possible in order not to overburden the individual systems Economies of scale rely on mainstream WLAN technology; proprietary solutions destroy the power of the embedded base 10
The Next Step: Frequency plan for the 2. GHz band 240 220 FIXED, MOBILE, Radiolocation 2670 FIXED Broadcasting Satellite 2483, 2400 Radio Astronomy Radiolocation 2690 200 2600 2700 The actual situation 11 Frequency discussion in the 2. GHz band Agreed generic scenarios for the Band 2 00-2 690 MHz from ITU-R Recommendation M.1036-2 MHz 2 00 2 690 Scenario 1 FDD UL (internal) FDD DL (internal) Scenario 2 FDD UL (internal) FDD DL (external) FDD DL (internal) Scenario 3 FDD UL (internal) Scenario 4 Scenario Scenario 6 Scenario 7 Scenario 1 Scenario 2 Scenario 3 FDD DL (external) Scenario 4 Scenario Scenario 6 Scenario 7 FDD DL (external) FDD DL (internal) FDD DL (external) FDD DL (external) UMTS-Forum as a discussion platform: finding the optimal solution for customer, operators and supplier 12 6
Spectrum Requirement Calculations for Systems beyond IMT-2000 1. The Database model Forecast for future services and customer behaviour User density related to environments (e.g. urban, rural) Service and traffic characteristics Infrastructure and technology parameters 2. The methodology Packet switched services Terrestrial and satellite coverage Single and hierarchical cell layers Specific 3G calculations and simulations 13 Calculation Method for Spectrum beyond IMT-2000 Architecture of the envisaged MIND spectrum calculation methodology Market of Mobile Communication Map customers request onto Radio Access Technology Distribution Functions Source: MIND Project Estimation frequency resources per Radio Access Technology Technical Characteristics Spectrum requirements Economical Framework 14 7
Learnings of the UMTS Forums work on Spectrum Calculations 1. In years 200-2010, Speech services will need all 2G band allocations. 2. The IMT-2000 Core Bands are sufficient to offer mobile multimedia services up to the year 200 and beyond. 3. Between the years 200-2010, additional spectrum in the order of 190 MHz needs to be designated. 1 Spectrum Issues Learnings: Spectrum Allocations outside IMT-2000 bands lead to industry fragmentation Insufficient Spectrum per Operator impacts its market success Non-harmonised Spectrum plans cause co-ordination problems and spectrum loss Suggestions: IMT-2000 Deployments in IMT-2000 bands only Combine paired and unpaired spectrum: WCDMA + TD-SCDMA complement each other Equal partitioning of spectrum per Operator: 2 x 1 MHz paired and MHz unpaired Minimum Long Duration of Spectrum license ~ 20 years 16 8
Conclusions UMTS-Forum SAG levels the interests of customer, operators and supplier The UMTS Air Interface is more efficient than 2G - in particular for mixed Voice and Data lower costs! WLAN integration could play a catalytic role for subscriber growth UMTS network planning for mixed Voice & Data Harmonized spectrum important for roaming and large economy of scale UMTS attracts the Market Players if open standards not only for allocated spectrum are agreed 17 With Compliments For further information please contact: UMTS Forum Secretariat Russell Square House 10-12 Russell Square London WC1B EE United Kingdom Tel.: +44 20 7331 2020 Fax: +44 20 7331 2040 E-Mail: info@umts-forum.org www.umts-forum.org 18 9