METHOD AND APPARATUS FOR PROVIDING GROUP COMMUNICATION SERVICE ENABLER (GCSE) SERVICE IN WIRELESS COMMUNICATION SYSTEM

摘要

In a method for providing an GCSE (Group Communication Service Enabler) service in a wireless communication system, the present invention provides a method for switching from MBMS to unicast service, comprising providing a GCSE (Group Communication Service Enabler) service to a UE through MBMS (Multimedia Broadcast Multicast Services); detecting moving of the UE; receiving MBMS status information indicating whether a neighbor cell belongs to an MBSFN(MBMS Single Frequency Network) area from a MCE (Multi-cell Coordination Entity); based on the MBMS status information, checking whether a target cell of the UE is capable of providing a GCSE service through the MBMS; and transmitting the checking result to the MCE, where in case the target cell is unable to provide a GCSE service through the MBMS, the GCSE service is provided to the UE through a unicast bearer.