Patent ID: 7734295

Claim:
A method for releasing a concurrent service in a wireless communication system, the method comprising: establishing a communication link between a mobile station and a base station controller (BSC) to concurrently provide a first service and a second service using the same logical signaling connection, wherein a first service identifier is allocated for the first service and a second service identifier is allocated for the second service to distinguish the first service and the second service; providing a service release request to the BSC to release the first service while maintaining the second service; providing a service release message from the BSC to a mobile switching center (MSC), wherein the service release message comprises the first service identifier for releasing the first service; providing a service negotiation control message to the mobile station; performing a service negotiation for the second service with the mobile station; and releasing the first service while maintaining the second service, wherein the logical signaling connection comprises a signaling connection control part (SCCP) connection between the BSC and the MSC, and wherein the logical signaling connection further comprises a source local reference number/destination local reference number (SLR/DLR).