Patent ID: 8238296

Claim:
A method of scanning a frequency environment for an idle channel comprising: allocating a first frequency set, including at least a first frequency channel of the frequency channels, to be scanned, in the frequency environment, to a first peripheral device of a plurality of peripheral devices; allocating a second frequency set, including at least a second frequency channel of the frequency channels, to be scanned, in the frequency environment, to a second peripheral device of the plurality of peripheral devices; requesting the first and the second peripheral devices to scan states of frequency channels of the first and the second frequency sets, respectively; and receiving information on the states scanned by the first and the second peripheral devices in response to the requesting, wherein the first frequency set does not include a frequency channel included in the second frequency set and the second frequency set does not include a frequency channel included in the first frequency set, and wherein frequency channels in the first frequency set and frequency channels in the second frequency set are simultaneously scanned by the first peripheral device and the second peripheral device, respectively.