Patent ID: 8660087

Claim:
A method for performing handover at a Mobile Relay Station (MRS) in place of Mobile Stations (MSs) in a wireless communication system, the method comprising: transmitting Connection IDs (CIDs) of the MSs, the CIDs pre-allocated by a target Base Station (BS), to the MSs; sending a resource allocation message comprising uplink resource allocation information for bandwidth request of the MSs, to the MSs; receiving a bandwidth request message which comprises security authentication information of each MS, from the MSs using an uplink resource allocated through the uplink resource allocation information; and aggregating bandwidth request messages of the MSs and sending a ranging request message comprising the security authentication information and bandwidth request information of the MSs to the target BS, wherein transmitting the CIDs of the MSs comprises: sending the handover request message to the serving BS; receiving a handover response message from the serving BS, the handover response message comprising the CIDs of the MSs pre-allocated by the target BS; and sending the handover response message comprising the pre-allocated CIDs to the MSs, wherein the CIDs are generated by the target BS, in response to a handover request message from a serving BS, wherein the bandwidth request message is generated by the MSs, using the CIDs, and wherein the ranging request message is generated by the MRS, using the CIDs.