Patent ID: 8521087
Filing Date: 2013-08-27
Classification: H04W

Abstract:
1. A method for facilitating radio communications, the method comprising: receiving, at a cognitive station (CS) from a cognitive central station (CCS), a message comprising a candidate list of one or more candidate frequencies and information which indicates that the CS is designated as a group leader of a CS group, wherein each frequency of the candidate list is a frequency at which each of a terminal, the CCS, and a primary station in communication range of the terminal is configured to operate; receiving, at the CS, a transmission parameter from each CS of the CS group; determining, at the CS, based upon the transmission parameter a target frequency list indicating which frequency or frequencies of the candidate list is available for communication between the terminal and the CCS; and providing, to the terminal, an allocation message identifying one or more frequencies of the target frequency list at which the terminal is permitted to communicate with the CCS.