METHOD FOR PROVIDING MULTICAST BROADCAST SERVICE IN COMMUNICATION SYSTEM

摘要

A method for providing an MBS(Multicast Broadcast Service) in a communication system is provided to allow multiple base stations to match synchronization of MBS data packets in transmitting the MBS data packets to terminals in a multi-access mode. In order to set up a bearer between an MBS server(140) and an ACR(Access Control Router)(130) and between an RAS(Radio Access System)(120) and the ACR(130) before transmitting an MBS data packet, the MBS server(140) transmits a service start request message by MBS data burst to the ACR(130)(S310). The ACR(130) transmits a service start response message to the MBS server(140), and transfers a service start request message created by changing only a GTP Tunnel ID value to be used between the RAS(120) and the ACR(130) in the service start request message with the other remaining parameters unchanged, to the RAS(120)(S330). The RAS(120) registers a received CID(Connection ID) to a corresponding MBS zone ID and transmits a service start response message to the ACR(130)(S340). Upon receiving the service start response message from the ACR(130), the MBS server(140) transmits MBS data packets to the RAS(120) through the ACR(130)(S350,S360).