Question: What is the primary purpose of sending continuous Up power control commands to the User Equipment (UE: User Equipment) in the context of radio transmission and reception testing, as outlined in the procedure?
Option 1: To evaluate the UE's ability to adapt to changing downlink signal strengths.
Option 2: To drive the UE to its maximum output power for subsequent frequency error measurements.
Option 3: To test the UE's handover capability between different base stations.
Option 4: To assess the UE's power consumption under various load conditions.
Explanation: The correct answer, Option 2, highlights the key objective of continuously sending Up power control commands to the UE - to push it to its maximum output power. This is crucial because subsequent steps in the procedure, such as measuring the frequency error delta f, require the UE to operate at its peak transmission capacity to ensure accurate and meaningful test results. This approach ensures that any measured frequency errors are not mitigated by lower transmission powers, providing a comprehensive assessment of the UE's performance under maximum load conditions.