EFFICIENT HANDOVER EXECUTION METHOD OF TERMINAL IN BROADBAND WIRELESS ACCESS SYSTEM INCLUDING MULTIPLE FEMTO BASE STATIONS

摘要

The present invention relates to a broadband wireless access system, and more specifically, to a method for performing fast handover by a terminal in an environment in which multiple femto base stations exist. According to one embodiment of the present invention, the method for performing handover by the terminal in the broadband wireless access system in which the multiple femto base stations having serving femto base stations form one group, comprises the steps of: transmitting a request message for requesting seamless handover within the group to the serving femto base stations; receiving, from the serving femto base stations, first command messages that include transmission power information and dedicated uplink resource allocation information commonly applied to the group; broadcasting a predetermined uplink signal that is applied with the transmission power indicated by the transmission power information, through an uplink resource that is indicated by the dedicated uplink resource allocation information; each of at least one femto base station included in the group, receiving second command messages that include the results of measuring the uplink signal from the serving femto base stations; and performing a network re-entry procedure to at least one target base station among the at least one of the femto base stations.