1. A method implemented in a wireless apparatus configured for communication in a network, the method comprising: determining an area within which the wireless apparatus is located; identifying a plurality of regions, each region corresponding to a portion of the area; receiving information regarding the plurality of regions, wherein the information is indicative of one or more communication channels being allocated for communication within one or more of the plurality of regions; sensing for communications on the one or more communication channels; and determining availability of the one or more communication channels based on the sensing.