Patent ID: 8112081

Claim:
A method of providing a broadcast/multicast (BCAST) service that is defined according to an Open Mobile Alliance (OMA) standard from a home network to a terminal, the method comprising: performing roaming procedures with the home network and the terminal; delivering a BCAST service guide to the terminal after performing the roaming procedures, the BCAST service guide being defined in the OMA standard and containing information related to broadcast areas, service areas, service lists, and user preferences; receiving, from the terminal, a request to access the BCAST service that is supported by the OMA standard; performing service authorization between a home network; delivering, to the terminal, a message including a rights object (RO) to access the BCAST service according to the OMA standard, if the terminal is authorized to receive the BCAST service as a result of the service authorization, wherein the RO is used for service authentication to determine whether or not the terminal is a subscriber of the home network and to examine subscriber policies thereof; and providing the BCAST service according to the OMA standard to the terminal if the BCAST service is authorized.