IMT-2000 explained

IMT-2000 (International Mobile Telecommunications-2000) is the global standard for third generation (3G) wireless communications as defined by the International Telecommunication Union.^{[1] [2] [3]}

In 1999 ITU approved five radio interfaces for IMT-2000 as a part of the ITU-R M.1457 Recommendation.^[4] The five standards are:^[5]

• 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, 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 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.^{[2] [6] [7] [8] [9]}

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

Notes and References

1. Web site: What is IMT-2000 . 4 March 2022 . ITU . 12 October 2022 . https://web.archive.org/web/20221012191754/https://www.itu.int/osg/imt-project/docs/What_is_IMT2000-2.pdf . bot: unknown .
2. Web site: IMT-2000 . Network Encyclopedia . 4 March 2022.
3. Web site: IMT-2000 Network Architecture . Fujitsu . 4 March 2022.
4. Web site: M.1457 : Detailed specifications of the terrestrial radio interfaces of International Mobile Telecommunications-2000 (IMT-2000) . ITU . 4 March 2022.
5. Web site: ITU-2000 . 3G4G Wireless Resource Centre . 4 March 2022.
6. Web site: 3G Consultation Qualcomm . Office of the Communications Authority HK . 4 March 2022.
7. Web site: 3G CELLULAR STANDARDS WITH PATENTS. 2014-06-24. projectsatbangalore.com. en. 2019-08-17.
8. Web site: 15 March 1999 . ITU-T Rec. Q.1701 (03/99) Framework for IMT-2000 networks . 2022-03-23 . . PDF . ...At least 384 kbit/s in outdoor to indoor and pedestrian radio environments, BER ≤ 10⁻⁶, both for circuit and packet services...At least 2048 kbit/s in indoor office radio environment, BER ≤ 10⁻⁶, both for circuit and packet services....
9. Web site: Segan . Sascha . 2015-02-10 . 3G vs. 4G: What's the Difference? . 2019-08-17 . PCMAG . en . With minimum consistent Internet speeds of 144 Kbps, 3G was supposed to bring 'mobile broadband.'.