Patent ID: 9144105
Filing Date: 2015-09-22
Classification: H04W

Abstract:
1. A method for use in a wireless communication system, said method comprising: in a Serving GPRS Support Node, completing deactivation of a Multimedia Broadcast Multicast Services (MBMS) User Equipment (UE) context associated with user equipment; said Serving GPRS Support Node transmitting to a radio access network a de-link request message regarding the user equipment leaving a multimedia broadcast multicast service, said de-link request message including at least a first identifier for identifying the multimedia broadcast multicast service, and a second identifier for identifying the user equipment, said de-link request message comprising a request for removing the MBMS UE context from a radio network controller in said radio access network; said Serving GPRS Support Node receiving from said radio access network a de- link response message which comprises an indication of whether said MBMS UE context has been successfully removed from said radio network controller in said radio access network, wherein said de-link request message further includes a third identifier for identifying an external packet data network and wherein said first identifier comprises an IP multicast address, said second identifier comprises an international mobile user identifier, and said third identifier comprises an access point name and wherein said UE MBMS context comprises UE-specific information related to a particular MBMS bearer service.