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.