Question: In a 3GPP-compliant FDD network, during testing of Terminal conformance for Radio transmission and reception, what is the primary objective when evaluating CQI (Channel Quality Indicator) reports based on Transport Format (TF) using CQI index 16?
Option 1: To ensure the UE (User Equipment) always reports a fixed BLER (Block Error Rate) of 10% for all streams.
Option 2: To verify that the reported CQI variance falls within defined limits and a 10% BLER aligns with TF based on Median CQI for single-stream scenarios only.
Option 3: To confirm that the CQI report variance is within specified limits and a 10% BLER falls between TF based on Median CQI-1 and Median CQI, or between Median CQI and Median CQI+2, for each stream.
Option 4: To test if the eNodeB (evolved Node B) can adapt its transmission rate based solely on CQI index variations without considering BLER thresholds.
Explanation: This option correctly captures the dual objectives of the test: (1) ensuring the variance of CQI reports is within defined limits when using Transport Format based on CQI index 16, and (2) verifying that a Block Error Rate (BLER) of 10% falls within specific thresholds for each data stream, optimizing network performance and reliability in response to reported channel conditions.