METHOD AND APPARATUS FOR PERFORMING HANDOVER IN CONSIDERATION OF AUTHENTICATION PROCEDURE

摘要

Disclosed are a handover performing method and apparatus for effectively performing handover when a terminal moves between a cell of a base station supporting a legacy system and a cell of a base station supporting an advanced system in a communication system. A method for performing handover by a terminal includes: acquiring information regarding a target base station through scanning; transmitting a ranging request message including authentication information used for a connection with a serving base station and indication information indicating direct handover to the target base station to the target base station; receiving a ranging response message including a handover procedure optimization flag from the target base station; and performing a network entry procedure to the target base station according to the handover procedure optimization flag. Thus, in performing handover from a legacy base station (e.g., an IEEE 802.16e base station) to an advanced base station (e.g., an IEEE 802.16m base station), a terminal authentication process is optimized to effectively perform direct handover.