Patent ID: 7519368
Filing Date: 2009-04-14
Classification: H04W

Abstract:
1. A method for performing a network re-entry operation by a target base station (BS), the method comprising the steps of: detecting that a mobile station (MS) is to perform a handover to the target BS; and transmitting to the MS handover process optimization information, included in a ranging response (RNG-RSP) message, indicating a possibility of omitting at least one of a process of transmitting a registration response (REG-RSP) message from the target BS to the MS, and a process of transmitting a subscriber station basic capability response (SBC-RSP) message from the target BS to the MS, required by the MS to perform a network re-entry operation with the target BS due to the handover of the MS, wherein if the at least one omitted process is the process of transmitting the REG-RSP message, the handover process optimization information includes information indicating that the target BS omits the process of transmitting the REG-RSP message to the MS, and wherein if the at least one omitted process is the process of transmitting the SBC-RSP message, the handover process optimization information includes information indicating that the target BS omits the process of transmitting the SBC-RSP message to the MS.