Question: In a TDD system, what determines the reporting accuracy of the Channel Quality Indicator (CQI) in AWGN environments for UEs supporting HSDPA from Release 5 onwards?
Option 1: Only the reporting variance of the CQI measurements.
Option 2: Solely the BLER (Block Error Rate) performance of the indicated transport format.
Option 3: Both the reporting variance and the BLER performance using the transport format indicated by the reported CQI median.
Option 4: The type of data streamed from the SS (Serving Sector) to the UE during measurement.
Explanation: The reporting accuracy of CQI in AWGN environments for UEs supporting HSDPA is determined by two key factors: Reporting Variance, highlighting the consistency of CQI reports, and BLER Performance, measuring error rates using the transport format indicated by the reported CQI median. Together, these provide a holistic view of the CQI's accuracy in reflecting true channel quality for effective HSDPA operation.