Patent ID: 8054807

Claim:
Handover (HO) method for mobile WiMAX network comprising: sending a list of target BSs (base stations) for possible HO acquired by an MSS (mobile subscriber station) to a serving BS; providing, at the serving BS, a HO request to the target BSs in the list along with an unique identifier to collect association responses from the target BSs, wherein the unique identifier uniquely identify the MSS; providing, at the serving BS, the association responses along with the unique identifier to the MSS so that the MSS performs scanning and ranging processes using the unique identifier; performing resource reservation for the MSS for possible HO at the target BSs; setting up service flows at a target BS selected among the target BSs; bi-casting data from the serving BS to the MSS and the selected target BS before the connection break with the serving BS; performing, at the MSS, an initializing procedure to connect with the selected target BS as a new serving BS, wherein the serving BS provides rendezvous time together with the association responses to the MSS, during which the MSS scans the target BSs using the unique identifier.