A Global View on Spectrum
for IMT-2000 Fabio Leite, IMT-2000 Project Manager International Telecommunication Union (ITU) [email protected] IMT-2000 Terrestrial Radio Interfaces
Recommendation ITU-R M.1457: Detailed Specifications of the Radio Interfaces of IMT-2000
Paired spectrum Unpaired spectrum
IMT-DS IMT-MC IMT-TC IMT-SC IMT-FT W-CDMA (UTRAN cdma2000 UTRAN TDD UWC-136 DECT FDD) TD-SCDMA (EDGE) Direct Multi Time Single Frequency Spread Carrier Code Carrier Time
CDMA TDMA FDMA Evolution Paths
IS-41 CORE NETWORK
cdmaOne cdma2000 IS-95B 1x EV-DO cdmaOne IS-95A cdma2000 1X cdma2000 1xEV-DV TDMA
EDGE W-CDMA
GSM GPRS
GSM MAP CORE NETWORK
It is the ITU goal that in IMT-2000 all radio access options should work with all network options, e.g., including cdma2000 on GSM MAP and W-CDMA on IS-41. IMT-2000 Frequency Bands
The figure shows the current use of the IMT-2000 spectrum 1G + 2G identified at ITU WRC-2000. 806 960 MHz The ITU is preparing globally harmonized frequency arrangements to facilitate IMT- 2G (Asia & Europe) + 3G 2000 use of all these bands. 1710 1885 MHz
DECT, PHS + 2G + 3G 1885 2025 2110 2200 MHz
2500 2690 MHz IMTIMT--20002000 FrequencyFrequency SpectrumSpectrum afterafter WRCWRC--20002000
800 850 900 950 1000 1700 1750 1800 1850 1900 1950 2000 2050 2100 2150 2200 2250 2500 2550 2600 2650 2700
ITU Allocations IMT 2000 IMT 2000 IMT 2000 MSS IMT 2000 MSS IMT 2000
UMTS UMTS Europe GSM GSM 1800 DECT MSS MSS UMTS
Cellular IMT 2000 China GSM GSM 1800, PCS MSS IMT 2000 MSS
Japan, PDC PHS IMT 2000 IMT 2000 Korea (w/o PHS) PDC MSS MSS
P C S North America Cellular A D BB E F C A D BB E F C MSS Reserve MSS
IMT IMT Cellular Cell. Cell. Brasil, Venezuela 2000 2000
ITU Radio Regulations: 750 MHz of spectrum identified for IMT-2000 Harmonized Introduction of IMT-2000 The International Regulatory Framework • Radio spectrum identification (RR ARTS5): total of 750 MHz (806-960 MHz, 1710-1885 MHz, 1885-2025/ 2110-2200 MHz, 2500-2690 MHz) (RR No.s 5.317A, 5.384A, and 5.388, and Resolutions 212 (Rev.WRC-97), 223 and 224 (WRC-2000)) • ITU RES212 (Rev. WRC-97): “administrations which implement IMT-2000 should make the necessary frequencies available for system development; use those frequencies for IMT-2000; use relevant international technical characteristics, as identified by the Recommendations of the ITU-R and ITU-T.” • Licensing and/or initial implementation of IMT-2000: has commenced in many countries within the 806-960 MHz, 1750-1780 MHz, 1840-1870 MHz, 1850-1990 MHz, 1900-1980 MHz, 2010-2025 MHz and 2110-2170 MHz bands. IMT-2000 Spectrum Harmonization
• ITU-R WP8F (WG-SPEC) Rec. M. 1036[-2] on frequency arrangements for implementation of IMT-2000 (bands identified at WRC-2000) (3Q2002) • ITU Workshop on IMT-2000 Spectrum Implementation (Geneva, 19-20.10.2000) Regulators & industry open discussions on IMT-2000 spectrum issues • WRC-03/06 Spectrum requirements for future developments of IMT-2000 & beyond systems Guidelines for IMT-2000 Spectrum Harmonization Frequency arrangements: • Global spectrum/solutions ? interoperability • Harmonized to the maximum possible ? global roaming and economies of scale • Flexible ? consider existing or planned systems • Compatible with pre-IMT-2000 ? enable evolution • Technology neutral ? enable any IMT-2000 technology • Support traffic growth, use spectrum efficiently, consider differences between terrestrial & satellite components Frequency Arrangements: IMT-2000 Band 1 710-2 200 MHz
MHz 1700 1750 1800 1850 1900 1950 2000 2050 2100 2150 2200 TDD Option B1 TDD MS Tx BS Tx 1880 1920 1980 2010 2025 2110 2170 # The upper limits in some MS Tx BS Tx Option B2 Countries are 1755 and 1850 MHz 1710 1785# 1805 1880#
Option B3 MS Tx TDD BS Tx 1850 1910 1930 1990
TDD Option B4 MS Tx BS Tx TDD MS Tx BS Tx 1710 1785 1805 1880 1920 1980 2010 2025 2110 2170
Option B5 MS Tx MS Tx BS Tx MS Tx TDD BS Tx BS Tx 1710 [1755] [1805] [1850] 1910 1930 1990 2110 [2160]
Option B6 MS Tx MS Tx TDD BS Tx BS Tx 1710 1770 1850 1910 1930 1990 2110 2170 B1, B2 and B3: already in use by public mobile cellular systems including IMT-2000; B1 and B2: fully complementary; B3: partly overlaps with B1 and B2. B4: enables to optimize spectrum use for paired IMT-2000 operation for countries having implemented B1. B1: can be combined with B2 for countries having implemented B3. B5: implements B2 to harmonize parts of the extension bands globally; enables to maximize spectrum use for paired IMT-2000 operation in countries where B3 is implemented and where the whole band 1 710-1 850 MHz is available. B6: enables to maximize spectrum use for IMT-2000 in countries where B3 is implemented and where the band 1 770-1 850 MHz is not available in the initial phase of deployment of IMT-2000 in this frequency band.