Method and system for service announcement using mbms multicast bearer

A method for multimedia broadcast/multicast service (MBMS) announcement in order to provide service announcement document in a universal mobile telecommunications network terrestrial radio access network (UTRAN) of a MBMS system, comprising the steps of:

• managing IP session information for a MBMS announcement;
• transmitting a virtual Internet group management protocol (IGMP) or a virtual multicast listener discovery (MLD) for a multicast service of a service announcement area for a MBMS;
• setting a MBMS bearer for transferring service announcement document to the service announcement area;
• setting a radio multicast channel for a cell corresponding to the service announcement area;
• and
• transmitting the service announcement document received from a BM-SC to user equipments in the cell with the radio multicast channel set,
• wherein the service announcement document includes an announcement area directory according to a service announcement area, and
• the announcement area directory includes a service directory according to a service provided to a corresponding announcement area as a lower directory.

A system for multimedia broadcast/multicast service (MBMS) service announcement using a MBMS multicast bearer comprising:

• a broadcast multimedia service control node (BM-SC);
• and
• a radio access network control node,
• wherein the BM-SC includes:
• a means for generating a service announcement document including announcement area directories according to service announcement areas and service directories according to services to be provided to a corresponding service area as a lower directory of the announcement area directories and managing the generated service announcement document, and
• wherein the radio access network control node includes:
• a mean for transferring the service announcement document to the user equipment located at the service announcement area.