IMT-2000 (International Mobile Telecommunications-2000) is the global standard for third generation (
3G) wireless communications as defined by the
International Telecommunication Union.
In 1999 ITU approved five radio interfaces for IMT-2000 as a part of the ITU-R M.1457 Recommendation. The five standards are:
* ''IMT-2000 CDMA Direct Spread''
** also known as
W-CDMA, used in
UMTS, the successor to
GSM
* ''IMT-2000 CDMA Multi-Carrier''
** also known as
CDMA2000
CDMA2000 (also known as C2K or IMT Multi‑Carrier (IMT‑MC)) is a family of 3G mobile technology standards for sending voice, data, and signaling data between mobile phones and cell sites. It is developed by 3GPP2 as a backwards-compatible ...
, the successor to
2G CDMA (
IS-95)
* ''IMT-2000 CDMA TDD''
** also known as
TD-SCDMA
* ''IMT-2000 TDMA Single Carrier''
** also known as
EDGE, an intermediate
2.5G
2G is a short notation for second-generation cellular network, a group of technology standards employed for cellular networks. 2G was comercially launched on the GSM standard in Finland by Radiolinja (now part of Elisa Oyj) in 1991. After 2G was ...
technology
* ''IMT-2000 FDMA/TDMA''
** also known as
DECT
To meet the IMT-2000 standards, a system must provide peak data rates of at 384 Kbit/s for mobile stations and 2 Mbit/s for fixed stations.
References
External links
ITU-R Recommendation M.1457 Detailed specifications of the terrestrial radio interfaces of International Mobile Telecommunications-2000 (IMT-2000).
ITU IMT-2000 Network Aspects
Mobile telecommunications standards
ITU-R recommendations
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