APPARATUS AND METHOD FOR CONTROLLING OPERATIONAL STATES OF MEDIUM ACCESS CONTROL LAYER IN A BROADBAND WIRELESS ACCESS COMMUNICATION SYSTEM

摘要

Disclosed is a method for controlling an operational state of a medium access control layer, by an access terminal, in a broadband wireless access communication system. The method comprises the steps of performing an uplink access of a contention-based scheme to an access point (100) using resources required to perform the uplink access according to the contention-based scheme when data to be transmitted in an access state is detected, and being allocated resources required to perform an uplink access of a contention-free scheme from the access point in a case of failing in the uplink access of the contention-based scheme; and performing a state transition from the access state into the traffic state (219) in a case of having been allocated the resource required for the contention-free scheme, and performing the uplink access of the contention-free scheme to the access point (100) using the allocated resource in the traffic state (219).