Patent ID: 8665808

Claim:
A method for allocating a radio-resource mode to a mobile station in a wireless access system, the method performed by the mobile station, the method comprising: transmitting a first message for requesting a mode switching from a first radio-resource mode allocated to the mobile station to a second radio-resource mode, the first message including Carrier to Interference and Noise Ratio (CINR) information of the second radio-resource mode; and transmitting a third message through a high-speed feedback channel when a second message approving the mode switching is not received within a predetermined time; wherein the third message indicating that the mode switching has not been normally performed; wherein the second message is a MAP control message including channel quality information channel (CQICH) allocation information when downlink data is present and a REP-REQ (response-request) message requesting the CINR information when the downlink data is absent.