METHOD FOR MULTICASTTING SERVICE IN A WIDR AREA NETWORK

摘要

A method for providing a broadcasting service in a wide area network is provided to enhance reliability in transmitting a broadcast control message for stably providing the broadcasting service, to bill the broadcasting service accurately, and to reduce time in changing channels. A method for providing a broadcasting service in a wide area network comprises the following several steps. A mobile terminal and a base station sets a connection between each other for transmitting a broadcast control message(410-414). The mobile terminal transmits an IGMP/MLD Join message for requesting an access to a specific broadcasting service to the base station(416). The base station checks authentication on the mobile terminal by using information on a publicized MBS(Multicast Broadcast Service) filter(418). If the authentication is unsuccessful, the base station abolishes the IGMP/MLD Join message(420). If the authentication is successful, the base station transmits the IGMP/MLD Join message to a serving SFA(Service Flow Authorization)(422). The serving SFA performs authentication on a requested MBS service in response to the received IGMP/MLD Join message(424), and transmits the message to an anchor SFA(426). The anchor SFA performs authentication on the requested MBS service in response to the received IGMP/MLD Join message(428), and transmits an RR-REQUEST message to the serving SFA wherein the RR-REQUEST message is for requesting a connection setup for transmitting a broadcast data stream(430). The serving SFA transmits the RR-REQUEST message to the base station(432). The base station generates a multicast CID in correspondence to a connection for transmitting a data stream of the corresponding broadcast service, and transmits the multicast CID to the mobile terminal(434).