Patent ID: 8031679
Filing Date: 2011-10-04
Classification: H04B,H04W

Abstract:
1. A method of performing softer handover in a broadband wireless communication system in including at least one base station (BS) and at least one mobile station (MS), the method comprising the steps of: granting identification numbers to neighboring antennas associated with said at least one base station currently performing communication, and transmitting to a neighbor base station advertisement message including the identification numbers of the neighboring antennas; receiving a handover request message including an identification number of a particular antenna from at least one mobile station operating in said wireless communication system; determining if the particular antenna is located within a current coverage area of the base station, and adding the particular antenna to a diversity set and providing notification information on multiple antennas included in the diversity set to the mobile station when the particular antenna is located within the current coverage area of the base station; multicasting an identical frame to the multiple antennas included in the diversity set; and receiving a handover indication message from the mobile station.