System and method for handover in a broadband wireless access communication system
AssigneeSamsung Electronics Co., Ltd.
InventorGwang-Eun Kim
Life of this patent
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Abstract
A system and a method for performing a handover in a broadband wireless access communication system including a serving BS, target BSs adjacent to the serving BS, and the MS currently communicating with the serving BS. The method includes receiving neighbor ranging code information from the serving BS, transmitting the neighbor ranging code information to at least one target BS, and receiving information for the handover from the serving BS.
Claims13
A system for performing a handover in a broadband wireless access communication system, the system comprising:
- a mobile station (MS);
- a serving base station (BS) for providing a currently available service to the MS;
- and
- at least one target BS adjacent to the serving BS,
- wherein the serving BS transmits target BS information and downlink/uplink map (DL-MAP/UL-MAP) information including a neighbor ranging code identifying BSs to the MS and transmits handover information of each target BS to the MS when the serving BS receives information about the neighbor ranging code, which is transmitted to the target BS by the MS, from the MS and information for the handover from the target BS,
- wherein the MS receives the DL-MAP information including the neighbor ranging code information, transmits the neighbor ranging code to a BS to be served as a handover BS when the handover is determined, transmits the neighbor ranging code information, which is transmitted to the target BS, to the serving BS, and receives the information for the handover from the serving BS in order to perform the handover to the handover BS, and
- wherein the target BS selects the serving BS corresponding to the neighbor ranging code upon receiving the neighbor ranging code from the MS, and transmits the information for the handover to the selected serving BS.
A method for performing a handover of a mobile station (MS) in a broadband wireless access communication system including a serving BS, target BSs adjacent to the serving BS, and the MS currently communicating with the serving BS, the method comprising the steps of:
- receiving neighbor ranging code information from the serving BS;
- transmitting the neighbor ranging code information to at least one target BS;
- and
- receiving information for the handover from the serving BS.
A method for supporting a handover of a mobile station (MS) by using a serving base station (BS) in a broadband wireless access communication system including the serving BS, a plurality of target BSs adjacent to the serving BS, and the MS currently communicating with the serving BS, the method comprising the steps of:
- transmitting neighbor ranging code information to the MS;
- receiving the neighbor ranging code information, which is transmitted to the target BS by the MS, from the MS;
- receiving information for the handover including an ID of a neighbor ranging code, which is transmitted by the MS, from the target BS;
- and
- transmitting the information for the handover received from each target BS to the MS.
A method for supporting a handover of a mobile station (MS) by using a target base station (BS) in a broadband wireless access communication system including a serving BS, a plurality of target BSs adjacent to the serving BS, and the MS currently communicating with the serving BS, the method comprising the steps of:
- receiving a neighbor ranging code from the MS;
- selecting a serving BS corresponding to the neighbor ranging code;
- and
- transmitting information for the handover of the MS to the selected serving BS.
Dependencies are inferred from the claim text.