Question: What is a prerequisite for a User Equipment (UE) to support power sharing for inter-band asynchronous Dynamic Adaptive Power Sharing (DAPS) handovers in an Evolved Universal Terrestrial Radio Access Network (E-UTRA)?
Option 1: The UE must support intra-frequency DAPS handovers.
Option 2: The UE must operate exclusively on a single frequency band.
Option 3: The UE's power class must be higher than a specified threshold.
Option 4: The UE must also support inter-frequency DAPS handovers.
Explanation: According to the specifications, for a UE to support power sharing in the context of inter-band asynchronous DAPS handovers, it is mandatory that the UE also supports inter-frequency DAPS handovers. This ensures seamless power management across different frequencies during handover processes, highlighting the importance of interoperability between different frequency operations in E-UTRA networks.