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 8 onwards?
Option 1: Only the reporting variance of the CQI.
Option 2: Solely the BLER performance of the indicated transport format.
Option 3: The type of data streamed from the Serving Sector to the UE during measurement.
Option 4: Both the reporting variance and the BLER performance using the transport format indicated by the reported CQI median.
Explanation: The reporting accuracy of the Channel Quality Indicator (CQI) under AWGN environments is determined by two key factors: The Reporting Variance, which deals with how precisely the CQI reports reflect actual channel conditions, and The BLER Performance Using the Transport Format Indicated by the Reported CQI Median, assessing the reliability of the data transmission format suggested by the median CQI value.