Question: For a UTRA FDD UE supporting Discontinuous UL DPCCH transmission, from which release onwards does the requirement to follow only corresponding TPC commands for transmitted UL DPCCH slots apply?
Option 1: Release 5
Option 2: Release 7
Option 3: Release 9
Option 4: Release 11
Explanation: This requirement targets efficiency in power control for UEs that support discontinuous transmission of the uplink dedicated physical control channel (UL DPCCH), enhancing battery life and reducing interference. Release 7 marks the onset of this specification's applicability, ensuring UEs optimize power usage by responding to relevant Transmit Power Control (TPC) commands only for transmitted slots, in line with the discontinuous UL DPCCH transmission capability introduced from this release onwards.