METHOD AND APPARATUS FOR PROVIDING A MULTIMEDIA BROADCAST/MULTICAST SERVICE IN A VISITED NETWORK

摘要

A communication system (100) provides a Multimedia Broadcast/Multicast Service (MBMS) to a roaming user equipment (UE) (102) by receiving, at a first network (110), a request from the UE to subscribe to an MBMS service and, in response to receiving the request, conveying to the UE a Temporary Mobile Group Identity (TMGI) that is uniquely associated with the MBMS service and the first network. When the first network receives information associated with a registration of the UE with a second network (140) and further receives MBMS data associated with the MBMS service, the first network conveys the MBMS data and the TMGI to the UE via the second network. By using a TMGI associated with the first network Ues subscribed to the MBMS service at the second network may ignore notifications sent to the UE subscribed to the MBMS service at the first network.