Patent ID: 7986682

Claim:
A method of registering with an access point in a terminal of a wireless communication system, the method comprising: sending a first ranging request message to the access point using an access interval of an uplink sub-frame of a frame of a plurality of frames, wherein the access interval is used to send the first ranging request message to the access point on a contention basis; receiving a first ranging response message allocating a ranging slot from the access point using a map message of a downlink sub-frame of a frame of the plurality of frames; sending a second ranging request message to the access point using the allocated ranging slot; receiving a second ranging response message from the access point; after receiving the second ranging response message, sending a registration request message to the access point using a second management connection interval of a frame of the plurality of frames; and receiving information on whether to permit the registering from the access point using a first management connection interval of a frame of the plurality of frames, wherein each frame of the plurality of frames comprises a downlink sub-frame and an uplink sub-frame, wherein the downlink sub-frame includes a broadcast interval and a first management connection interval, and the uplink sub-frame includes an access interval and a second management connection interval, the broadcast interval being used for transmitting a map message.