Question: In a UTRA FDD UE with multiple receiver antenna connectors, what is the requirement for AWGN signals applied to each connector during testing?
Option 1: The AWGN signals must be correlated across all antenna connectors.
Option 2: The AWGN signals applied to each receiver antenna connector shall be uncorrelated.
Option 3: Only one antenna connector requires an AWGN signal; others can be left untested.
Option 4: The correlation of AWGN signals depends on the UE's DPCCH quality thresholds (Qout and Qin).
Explanation: To ensure comprehensive testing of a UTRA FDD UE with multiple receiver antenna connectors, each connector must be subjected to uncorrelated Additive White Gaussian Noise (AWGN) signals. This approach simulates real-world conditions more accurately, where signals received by different antennas are unlikely to be perfectly correlated due to variations in signal paths and environmental factors. Uncorrelated AWGN signals help in evaluating the UE's performance under diverse scenarios, enhancing the reliability of test outcomes.