View source for IMT-2000

'''IMT-2000''' ('''International Mobile Telecommunications-2000''') is the global standard for third generation ([[3G]]) wireless communications as defined by the [[International Telecommunication Union]].<ref>{{cite web |title=What is IMT-2000 |url=https://www.itu.int/osg/imt-project/docs/What_is_IMT2000-2.pdf |access-date=4 March 2022 |website=ITU |archive-date=12 October 2022 |archive-url=https://web.archive.org/web/20221012191754/https://www.itu.int/osg/imt-project/docs/What_is_IMT2000-2.pdf |url-status=bot: unknown }}</ref><ref name=":5">{{cite web |title=IMT-2000 |url=https://networkencyclopedia.com/imt-2000/ |website=Network Encyclopedia |date=8 September 2019 |access-date=4 March 2022}}</ref><ref>{{cite web |title=IMT-2000 Network Architecture |url=https://www.fujitsu.com/downloads/MAG/vol38-2/paper03.pdf |website=Fujitsu |access-date=4 March 2022}}</ref>

In 1999 ITU approved five radio interfaces for IMT-2000 as a part of the ITU-R M.1457 Recommendation.<ref>{{cite web |title=M.1457 : Detailed specifications of the terrestrial radio interfaces of International Mobile Telecommunications-2000 (IMT-2000) |url=https://www.itu.int/rec/R-REC-M.1457 |website=ITU |access-date=4 March 2022}}</ref> The five standards are:<ref name="IMT-2020 definitions">{{cite web |title=ITU-2000 |url=https://www.3g4g.co.uk/Faq/imt2000.html |website=3G4G Wireless Resource Centre |access-date=4 March 2022}}</ref>
* ''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 (telecommunication)|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&nbsp;kbit/s for mobile stations and 2&nbsp;Mbit/s for fixed stations.<ref name=":5"/><ref>{{cite web |title=3G Consultation Qualcomm |url=https://www.ofca.gov.hk/filemanager/ofca/en/content_1349/3G-consultation-Qualcomm.pdf |website=Office of the Communications Authority HK |access-date=4 March 2022}}</ref><ref>{{cite web|url=http://www.projectsatbangalore.com/3G-network/|title=3G CELLULAR STANDARDS WITH PATENTS|date=2014-06-24|website=projectsatbangalore.com|language=en|access-date=2019-08-17}}</ref><ref>{{Cite web |date=15 March 1999 |title=ITU-T Rec. Q.1701 (03/99) Framework for IMT-2000 networks |url=https://www.itu.int/rec/dologin_pub.asp?lang=e&id=T-REC-Q.1701-199903-I!!PDF-E |access-date=2022-03-23 |website=[[International Telecommunication Union]] |format=PDF |quote=...At least 384&nbsp;kbit/s in outdoor to indoor and pedestrian radio environments, BER ≤ 10<sup>−6</sup>, both for circuit and packet services...At least 2048&nbsp;kbit/s in indoor office radio environment, BER ≤ 10<sup>−6</sup>, both for circuit and packet services...}}</ref><ref name=":0">{{Cite web |last=Segan |first=Sascha |date=2015-02-10 |title=3G vs. 4G: What's the Difference? |url=https://www.pcmag.com/news/293905/3g-vs-4g-whats-the-difference |access-date=2019-08-17 |website=PCMAG |language=en |quote=With minimum consistent Internet speeds of 144&nbsp;Kbps, 3G was supposed to bring 'mobile broadband.'}}</ref>

==References==
{{reflist}}

==External links==
* [https://www.itu.int/rec/R-REC-M.1457 ITU-R Recommendation M.1457]: Detailed specifications of the terrestrial radio interfaces of International Mobile Telecommunications-2000 (IMT-2000).
* [https://www.itu.int/en/ITU-T/imt-2000/Pages/default.aspx ITU IMT-2000 Network Aspects]

{{Cellular network standards}}
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[[Category:Mobile telecommunications standards]]
[[Category:ITU-R recommendations]]


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