Question: In E-UTRA conformance testing for a User Equipment (UE) with two Receive (Rx) antennas, how are downlink signals typically applied during testing?
Option 1: Alternating downlink signals between the two Rx antennas to simulate handover scenarios.
Option 2: Applying a unique downlink signal to each Rx antenna to test diversity schemes.
Option 3: Disconnecting one Rx antenna and applying the downlink signal only to the other, unless specified otherwise.
Option 4: Applying the same downlink signal to both Rx antennas, with both connected unless the test case states otherwise.
Explanation: This approach ensures that the UE's ability to process identical downlink signals received by multiple antennas is tested, which is crucial for evaluating the device's performance in environments where signal strength and multipath effects are significant. This method aligns with testing protocols designed to assess the UE's reception capabilities under standardized conditions.