MULTIMEDIA DATA SERVICE SYSTEM SUPPORTED MULTICAST FOR A MOBILE COMMUNICATION SYSTEM, MULTICAST ACTIVATION AND DEACTIVATION METHOD PROVIDING MULTIMEDIA DATA SERVICE FOR A MOBILE COMMUNICATION SYSTEM

摘要

PURPOSE: A multimedia data service device of a mobile communication system for supporting multicast, a multicast service activation and deactivation method for multimedia data service of the mobile communication system are provided to provide various multimedia contents to a plurality of users by providing the multicast service from a system after 3GPP Release 7. CONSTITUTION: A multimedia data service device(300) receives the multimedia data service participation request information from a packet data network gateway(140) of a mobile communications systems(100). If the multimedia data service participation request information is received, the multimedia data service device transmits the multicast service activation request information to a mobile terminal(200) requesting the multimedia data service participation.