Patent ID: 7440759

Claim:
A method of dynamically allocating channels in a wireless communication system including multiple sub-channels and multiple frame cells, each of the sub-channels being an assembly including a preset number of sub-frequency bands divided from an overall frequency band, the frame cells using each of the sub-channels as a basic transmission unit and having a frequency domain and a time domain occupied by the sub-channels, the method comprising the steps of: transmitting, by a mobile station, channel quality information according to frame cells to an access point; transmitting, by the access point, the channel quality information according to frame cells to an access router; determining, by the access router, channel allocation information about the multiple frame cells and the multiple sub-channels based on the channel quality information; transmitting, by the access router, the channel allocation information about the multiple frame cells and the multiple sub-channels to the access point; comparing, by the access point, the received channel allocation information about the multiple frame cells with newest channel quality information received from the mobile station; and allocating, by the access point, a sub-channel of a selected frame cell to the mobile station as a result of the comparisons, wherein the step of determining the channel allocation information about the multiple frame cells and the multiple sub-channels comprises the steps of: sequentially arranging the multiple frame cells according to the channel quality information received from the mobile station; and determining a predetermined number of frame cells from among the arranged frame cells in an order based on superior channel quality.