Uplink Multiple Input Multiple Output (MIMO) for High Speed Packet Access (HSPA)
The present document captures evaluation results and analysis from the study item on “Uplink MIMO for HSPA” described in [2].
The work under this study intends to capture the feasibility and merits of UL MIMO in terms of average user throughput for the following configuration
• Up to 2 streams can be transmitted by the UE
• UL MIMO transmission applies to E-DCH physical channels
• Both 2x2 and 2x4 configurations are considered
Additionally, the following are also investigated:
• Impact on infrastructure implementation
• Impact on UE implementation
• Impact on specifications