Method for mapping Ranging Channels and Opportunities in a Broadband Wireless Access System

摘要

The present invention relates to a broadband wireless access system, and more particularly, to a ranging channel and a method of mapping an opportunity, which is an uplink region in which a terminal performs ranging, and a ranging method for performing a ranging of a terminal and an apparatus for performing the ranging will be. A method for performing ranging in a broadband wireless access system in a broadband wireless access system according to an embodiment of the present invention includes receiving at least one first ranging channel allocation information allocated to a specific frame from a base station; And determining an opportunity index of the at least one first ranging channel using the allocation information, wherein determining the opportunity index of the first ranging channel comprises: Wherein if the first ranging channel is an asynchronous ranging channel (NS-RCH), it is determined that an opportunity index of the asynchronous ranging channel is an initial value of a predetermined opportunity index range, and the at least one first ranging channel And determining an opportunity index of the asynchronous ranging channel as a last value of the opportunity index range when the S-RCH is a synchronous ranging channel (S-RCH).