A channel allocation method in a BS that communicates on at least two channels in a wireless communication system is provided. The BS receives information related to the data rates of the available channels from the MSs within its cell area, calculates the variance of the data rates for each channel,...http://www.google.com/patents/US20050085235?utm_source=gb-gplus-sharePatent US20050085235 - Apparatus and method for allocating channel in a wireless communication system