3.5G Mobile Network

3.5G Mobile Network: a faster version of 3G wireless networks, 3.5G uses a technology called HSDPA, which is a significant enhancement to W-CDMA and can achieve speeds of up to 14.4 Mbps. HSDPA stands for High Speed Downlink Packet Access. It is a packet based data service feature of the 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.