Question: In a UTRAN network, how do UEs in RRC idle state handle paging coordination while receiving an ongoing MBMS (Multimedia Broadcast/Multicast Service) session's user data, in contrast to GERAN?
Option 1: By temporarily switching to RRC connected mode for the duration of the MBMS session.
Option 2: Not Applicable; UEs in RRC idle state cannot receive MBMS sessions in UTRAN.
Option 3: Similar to GERAN, by monitoring their paging channels concurrently with receiving the MBMS session's user data.
Option 4: By notifying the core network to pause the MBMS transmission during paging coordination.
Explanation: This answer highlights that UEs in RRC idle state handle paging coordination similarly to GERAN, by monitoring their paging channels concurrently with receiving the MBMS session's user data, to maintain connectivity for potential incoming CS domain calls, which might interrupt the MBMS service.