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NetworkWorld.com > Resource Links: Encyclopedia: U

UMTS (Universal Mobile Telecommunications System)

A 3G wireless technology designed to increase wireless-data speeds on GSM networks.

Also known as Wideband Code Division Multiple Access (WCDMA), the IP-based UMTS currently offers speeds of up to 320K bit/sec, compared to 30K to 40K bit/sec bandwidth on GSM networks. Vendors say they will eventually be able to offer speeds of up to 2M bit/sec. UMTS is designed to eventually allow global roaming through fixed and satellite wireless systems.

In July, 2004, AT&T Wireless became the first U.S. carrier to offer UMTS service.

It competes with a technology known as EV-DO.

Additional resources

UMTS Forum
Association of UMTS vendors.

UMTS World
UMTS news.

Wireless / Mobile research center
Latest wireless news, analysis and links.


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