High-Speed Downlink Packet Access (HSDPA)
From Computing and Software Wiki
High Speed Downlonk Packet Access is a 3.5G (G stands for generation) technology. HSDPA, short for High Speed Downlink Package Access is a new new mobile telephony protocol, which allows to have high data speed transmission and large amounts of capacity. It will provide download speed on a mobile phone same as an Asymmetric Digital Subscriber Line (ADSL). HSDPA can archieve data transmission Speed of 8-10 Mbit/s. For future improvement, HSDPA provides up to 42Mbit/s data transmission speed.