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
  • IMT-2000 CDMA Multi-Carrier
  • IMT-2000 CDMA TDD
  • IMT-2000 TDMA Single Carrier
    • also known as EDGE, an intermediate 2.5G technology
  • IMT-2000 FDMA/TDMA

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]

References edit

  1. ^ "What is IMT-2000" (PDF). ITU. Archived from the original on 12 October 2022. Retrieved 4 March 2022.{{cite web}}: CS1 maint: bot: original URL status unknown (link)
  2. ^ a b "IMT-2000". Network Encyclopedia. Retrieved 4 March 2022.
  3. ^ "IMT-2000 Network Architecture" (PDF). Fujitsu. Retrieved 4 March 2022.
  4. ^ "M.1457 : Detailed specifications of the terrestrial radio interfaces of International Mobile Telecommunications-2000 (IMT-2000)". ITU. Retrieved 4 March 2022.
  5. ^ "ITU-2000". 3G4G Wireless Resource Centre. Retrieved 4 March 2022.
  6. ^ "3G Consultation Qualcomm" (PDF). Office of the Communications Authority HK. Retrieved 4 March 2022.
  7. ^ "3G CELLULAR STANDARDS WITH PATENTS". 2014-06-24. Retrieved 2019-08-17.
  8. ^ "ITU-T Rec. Q.1701 (03/99) Framework for IMT-2000 networks" (PDF). International Telecommunication Union. 15 March 1999. Retrieved 2022-03-23. ...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. ^ Segan, Sascha (2015-02-10). "3G vs. 4G: What's the Difference?". PCMAG. Retrieved 2019-08-17. With minimum consistent Internet speeds of 144 Kbps, 3G was supposed to bring 'mobile broadband.'

External links edit