Topic summary
HSPA+
Extracted from the Wikipedia article Evolved High Speed Packet Access.
Evolved HSDPA (HSPA+)
An Evolved HSDPA network can achieve theoretical maximum speeds of 28 Mbit/s and 42 Mbit/s using a single 5 MHz carrier. These speeds are made possible by combining MIMO (in Release 7) with a more efficient modulation scheme, 64-QAM (in Release 8). This combination improves throughput, especially for users with good signal conditions. Quality of service can also be improved for users with poorer reception through techniques like diversity and joint scheduling.