Patent ID: 8249637

Claim:
A wireless communication device compliant with wireless communication schemes including a controlling channel shared by a plurality of wireless communication terminals linked to base stations, a first high-priority service channel, and a second low-priority service channel, the wireless communication device comprising: a controlling channel communication unit which performs communications through the controlling channel; a first service channel transmission/reception unit which performs communications through the first service channel; a second service channel transmission/reception unit which performs communications through the second service channel; a controlling unit; a frequency setting unit; and an interference detecting unit, wherein the controlling unit: decrypts a frame of the controlling channel received by the controlling channel communication unit; detects a communication priority of the frame if the decrypted frame is a communication request to its terminal; allows the interference detecting unit to detect a usage status of a frequency used on the basis of the communication priority; allows the frequency setting unit to set the operation frequency of the first service channel transmission/reception unit and allows the interference detecting unit to confirm the availability of the channel to be used when the high-priority frame can be coupled; and allows the frequency setting unit to set the operation frequency of the second service channel transmission/reception unit and allows the interference detecting unit to confirm the availability of the channel to be used when the low-priority frame can be coupled.