Question: In a UE (User Equipment) inner loop power control test with UL OLTD (Uplink Open Loop Transmit Diversity), what is the primary reason for verifying that the TPC_cmd (Transmit Power Control command) is correctly derived from received TPC commands?
Option 1: To ensure compliance with regulatory maximum transmission power limits.
Option 2: To prevent an excess error in inner loop power control, which decreases system capacity.
Option 3: To optimize UE battery life by minimizing transmission power.
Option 4: To enhance the quality of voice calls in noisy environments.
Explanation: Correct derivation of TPC_cmd from received TPC commands is crucial for maintaining accurate inner loop power control. An excess error in this process can lead to decreased system capacity, as it may cause inefficient use of available power resources, leading to reduced overall network performance and potentially increased interference. This highlights the importance of precise power control in wireless communications to ensure optimal system capacity.