Question: For a UTRA TDD User Equipment (UE) supporting HSDPA, what determines the maximum output power tolerance when transmitting with HS-SICH and DPCH?
Option 1: The minimum sensitivity of the base station receiver
Option 2: The UE's Minimum Power Reduction for the nominal maximum output power
Option 3: The UE Maximum Power Reduction (MPR) for the nominal maximum output power
Option 4: The number of active DPCH channels
Explanation: The correct answer is based on understanding how the maximum output power and its tolerance are defined for specific transmission scenarios in UTRA TDD UEs that support HSDPA. The UE Maximum Power Reduction (MPR) directly influences the determination of the maximum output power with HS-SICH (High-Speed Shared Control Channel) and DPCH (Dedicated Physical Control Channel), as it accounts for variations in the UE's power transmission capabilities under different conditions, ensuring compliance with regulatory limits while maintaining optimal network performance.