 HSDPA also decreases latency and therefore the round trip time for applications.Evolved High Speed Packet Access (HSPA+), which was introduced in 3GPP Release 7, further increased data rates by adding 64QAM modulation, MIMO, and Dual-Carrier HSDPA operation.Even higher speeds of up to 337.5 Mbit/s are possible under 3GPP Release 11.