Question: In 3GPP conformance testing for User Equipment (UE), what is the required state for a UE that supports both CS and PS domains at the start of an MBMS broadcast test case?
Option 1: CELL_FACH (6-11 PS-DCCH+DTCH_FACH) state
Option 2: Registered Idle Mode on PS state (state 3)
Option 3: Dedicated Channel (DCH) state
Option 4: Registered Idle Mode on CS/PS (state 7)
Explanation: For MBMS broadcast test cases, the UE's initial state depends on its domain support. Since the question specifies a UE that supports both Circuit Switched (CS) and Packet Switched (PS) domains, the correct initial state is Registered Idle Mode on CS/PS, which aligns with state 7 as per the specified UE states. This ensures the UE is prepared for broadcast transmissions across both domains.