Question: What is a prerequisite for a User Equipment (UE) to support groupWakeUpSignalAlternationTDD-r16 in RRC_IDLE mode for TDD in E-UTRA?
Option 1: The UE must also support groupWakeUpSignalTDD-r16.
Option 2: The UE needs to be in RRC_CONNECTED mode.
Option 3: The UE has to support only specifications related to physical channels (e.g., similar to TS 36.211).
Option 4: The UE should have a specific frequency band allocated.
Explanation: For a UE to indicate support for groupWakeUpSignalAlternationTDD-r16, it must also show support for groupWakeUpSignalTDD-r16. This ensures the UE can properly handle group wake-up signals with resource alternation in TDD mode while in RRC_IDLE state, aligning with E-UTRA standards for efficient idle mode operations.