Question: In a 3GPP-compliant FDD network, during testing of Terminal conformance for Radio transmission and reception, what is the primary objective when evaluating the variance of Channel Quality Indicator (CQI) reports based on Transport Format (TF) using CQI index 16?
Option 1: To ensure a Block Error Rate (BLER) of exactly 10% aligns with the TF based solely on Median CQI.
Option 2: To verify that a BLER of 1% is achieved between the TF based on Median CQI-1 and Median CQI+1.
Option 3: To confirm that a 10% BLER falls within the range defined by the TF based on either Median CQI-1 to Median CQI or Median CQI to Median CQI+2, while also checking variance limits for CQI reports.
Option 4: To test the network's ability to adjust TF in response to CQI index changes without impacting BLER thresholds.
Explanation: This option correctly captures the dual objective of the test: (1) verifying that the variance of CQI reports using TF based on CQI 16 is within defined limits, and (2) ensuring a Block Error Rate (BLER) of 10% falls between specific Transport Format (TF) thresholds based on Median CQI values.