Question: For a FDD UE supporting HSDPA and Dual Cell E-DCH with 16QAM (UE capability category 9), what is the basis for defining the maximum output power tolerance when using DC-HSUPA?
Option 1: According to the UE's Minimum Power Reduction for the nominal minimum output power.
Option 2: According to the UE Maximum Power Reduction (MPR) for the nominal maximum output power.
Option 3: Based on the sum of the narrowband transmit power of each carrier in the UE.
Option 4: Defined by the average transmit power during a DPCCH frame.
Explanation: The correct answer is based on understanding how DC-HSUPA's maximum output power tolerance is defined, specifically for UEs that support HSDPA and Dual Cell E-DCH with 16QAM (category 9). The UE Maximum Power Reduction (MPR) for the nominal maximum output power serves as this basis, ensuring compliance with power transmission limits while maintaining optimal network performance. This highlights the importance of MPR in managing power output for advanced UE capabilities within telecom networks.