Patent ID: 7720473

Claim:
A method for performing a handover by a mobile subscriber station in a mobile communication system the method comprising: transmitting a handover request message to a serving base station; and receiving a handover response message in response to the handover request message from the serving base station, wherein the handover response message includes an identifier of a recommended neighbor base station and an indication field indicating whether at least one management message is required or omitted during a network reentry process with the mobile subscriber station and the recommended neighbor base station, and wherein the at least one management message includes at least one of a subscriber station basic capability request (SBC-REQ) message, a subscriber station basic capability response (SBC-RSP) message, a registration request (REG-REQ) message and a registration response (REG-RSP) message, and at least one of a privacy key management request (PKM-REQ) message and a privacy key management response (PKM-RSP) message during an exchange of the PKM-REQ message and the PKM-RSP message, and wherein the handover response message includes a service level prediction field indicating a level of service the mobile subscriber station can expect from the recommended neighbor base station.