Method of changing a zone in a broadband wireless access system

摘要

The present invention relates to a broadband wireless access system, and more particularly, to a method of performing a zone change more promptly in a base station where an advanced terminal operates in a mix mode. A method for an advanced terminal (AMS) to perform a zone change in an advanced base station (mix mode ABS), which operates in a mix mode of a broadband wireless access system according to an embodiment of the present invention includes: receiving a ranging response message (RNG-RSP) including system information on an advanced terminal supporting zone (MZone) from a legacy zone (LZone) of the advanced base station; and performing ranging in the advanced terminal supporting zone by using the system information.

主权项

1. A method of performing a zone switch by an advanced mobile station (AMS) configured to operate with an advanced base station (ABS) in a broadband wireless access system, the method comprising:
receiving, by the AMS from the ABS via a legacy zone (LZone) of the ABS, a ranging response message containing zone switch information; acquiring, by the AMS, MZone system information for an AMS supporting zone (MZone) of the ABS; and performing, by the AMS, network reentry to the MZone of the ABS by performing downlink synchronization with the MZone of the ABS using the zone switch information, wherein, if the zone switch information includes a parameter of a MZone superframe header (SFH), the AMS acquires the MZone system information from the zone switch information before performing the downlink synchronization with the MZone of the ABS, wherein the zone switch information comprises information indicating a zone switch mode of the AMS, wherein, if the zone switch mode of the AMS is set to mode 0, the AMS breaks data communication with the LZone before performing the network reentry to the MZone, and wherein, if the zone switch mode of the AMS is set to mode 1, the AMS maintains the data communication with the LZone while performing the network reentry to the MZone.