Question: For a UTRA FDD User Equipment (UE) supporting High Speed Downlink Packet Access (HSDPA), which of the following statements is true regarding the receiver open loop transmit diversity performance for High Speed Physical Downlink Shared Channel (HS-DSCH) in multi-path fading environments?
Option 1: It is determined by the signal-to-noise ratio (SNR) and applies only to Release 5 and earlier.
Option 2: It is evaluated based on the information bit throughput R and is mandatory for all UE capability categories.
Option 3: The performance requirements are specified for TDD mode only, starting from Release 7.
Option 4: The evaluation is based on the information bit throughput R and applies to Releases 6 and later, specifically for UE capability categories 1 to 10 with optional enhanced performance type 1.
Explanation: This option correctly states that the receiver open loop transmit diversity performance for HS-DSCH in multi-path fading environments is determined by the information bit throughput R. It accurately specifies the applicability to Releases 6 and later, targeting UEs with HSDPA capabilities across categories 1 to 10, including those with optional enhanced performance requirements type 1.