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HSDPA Last modified: Monday, July 31, 2006

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. Sponsored listings Connectivity Software for Enterprise and Service Providers - Smith Micro has an unrivaled portfolio of security and network connectivity applications for laptops and mobile devices.

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.