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HSDPA
Last modified: Thursday, January 27, 2005 

Acronym for High Speed Downlink Packet Access.

High Speed Downlink Packet Access, or HSDPA, is a packet based data service feature of the in WCDMA standard which provides a downlink with data transmission up to 8-10 Mbps (and 20 Mbps for MIMO systems) over a 5MHz bandwidth in WCDMA downlink. The high speeds of HSDPA is achieved through techniques including; 16 Quadrature Amplitude Modulation, variable error coding, and incremental redundancy. HSDPA is a technology upgrade to current UMTS networks.

See also UMTS.

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For internet.com pages about HSDPA . Also check out the following links!

Related Links

3G Americas Technology Center
Beyond UMTS/WCDMA high-speed data technology await enhancements that provide even faster speeds and opportunities for an array of market applications.

High Speed Downlink Packet Access - Whitepaper (PDF)
This Lucent Technologies whitepaper addresses the following topics: The need for HSDPA, How HSDPA works, How to upgrade, and The future.

related categories

Convergence

Wireless Computing

related terms

broadband

downlink

MIMO

UMTS


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