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About High Speed Downlink Packet Access (HSDPA)
High Speed Downlink Packet Access (HSDPA) is an improved 3G (third-genration) mobile communications protocol in the High Speed Packet Access (HSPA) family. HSDPA is otherwise called 3.5G, 3G+, or Turbo 3G.
It permits network dependent on the Universal Mobile Telecommunications System (UMTS) to have higher data speed and limit. HSDPA was presented with 3GPP Release 5, which additionally went with an upgrade for the uplink giving a new bearer of 384 kbit/s.
It is an update for UMTS netwroks that doubles network capacity and increments download speeds by multiple times or more.