IMT-2000 (third generation) Core Frequency Band
The third generation frequencies for IMT-2000 were identified
by the International Telecommunication Union (ITU) in 1992
and appear as No. S5.388 of the Radio Regulations: S5.388 The bands 1 885-2 025 MHz and 2 110-2 200 MHz are intended for use, on a worldwide basis, by administrations wishing to implement International Mobile Telecommunications-2000 (IMT-2000). Such use does not preclude the use of these bands by other services to which they are allocated. The bands should be made available for IMT-2000 in accordance with Resolution 212 (Rev.WRC-97).
Terrestrial IMT-2000 services will operate in the FDD mode in the bands 1920 - 1980 MHz paired with 2110 - 2170 MHz with mobile stations transmitting in the lower sub-band and base stations transmitting in the upper sub-band. The bands 1885 - 1920 MHz and 2010 - 2025 MHz are unpaired for TDD operation. Administrations and Regional Regulatory Telecommunication Organizations should be consulted concerning any specific national or regional arrangements for IMT-2000.GSM Association Members will, subject to commercial, operational
and regulatory considerations, commence the introduction of
third generation IMT-2000 services from 2002.
IMT-2000 (third generation) Extension
Bands
At the May-June 2000 World Radiocommunication Conference (WRC-2000) the International Telecommunication Union (ITU) will identify additional IMT-2000 frequency bands. The GSM Associations position on the matter is as follows:
In addition to the frequency bands currently designated for
IMT-2000 in number S5.388 of the
Radio Regulations (the IMT-2000 core-band) and those bands
which in 2005 are utilised by administrations for second-generation
public land mobile services in their territories (e.g. GSM
900, 1800 and 1900), the frequency bands 698 to 806 MHz,
2500 to 2690 MHz and 2700 to 2900 MHz should be designated for the use of IMT-2000 to provide from 2005 for
up to an additional 160 MHz of spectrum for IMT-2000.
Subject to commercial demand, the 160 MHz of additional spectrum should be available in its entirety prior to 2010.
Existing second generation bands (including GSM bands) 806
to 960 MHz, 1429 to 1501 MHz and 1710 to 1885 MHz should be
confirmed as very long term IMT-2000 bands and studies commenced
to pave their way for formal identification at a subsequent
WRC.
They should NOT be identified at WRC-2000 as IMT-2000 extension
bands since they will continue to be extensively used for
GSM (and other second generation systems) for a long period
of time for both GSM and in multi-mode GSM/IMT-2000 terminals
to supplement IMT-2000 coverage.
All the bands (extension and existing second generation bands)
should be allocated in all ITU regions on a primary basis
to the mobile service (if not already so allocated) in the
ITU Radio Regulations.
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