A wireless communication device arranged to communicate with a first wireless communication device, the first wireless communication device being capable of communicating with first terminals compliant with a first standard, second terminals compliant with a second standard and third terminals compliant with a third standard, the wireless communication device comprising: a receiver configured to receive a first frame from the first wireless communication device, the first frame includes a first field, a second field and a third field, the first field includes a first identifier and a first information to assign a first bandwidth narrower than a maximum bandwidth up to which a predetermined channel can be extended to the first terminals, and the second field includes a second identifier and a second information to assign a second bandwidth narrower than a maximum bandwidth by which the predetermined channel can be extended to the second terminals, and the third field includes a third identifier and a third information to assign channels different from any channel assigned to the first bandwidth or the second bandwidth among a plurality of channels in the maximum bandwidth; and controlling circuitry (20, 60) configured to control communication with the first wireless communication device, wherein the wireless communication device is one of the third terminals compliant with the third standard, the first identifier can be interpreted by the first terminals, and the second terminals and the third terminals, the second identifier can be interpreted by the second terminals, and the third identifier can be interpreted by the third terminals, the controlling circuitry is configured to extract the third information from the third field by detecting the third identifier in the third field of the first frame and specify a plurality of channels for use in communication with the first wireless communication device based on the extracted third information. a receiver configured to receive a first frame from the first wireless communication device, the first frame includes a first field, a second field and a third field, the first field includes a first identifier and a first information to assign a first bandwidth narrower than a maximum bandwidth up to which a predetermined channel can be extended to the first terminals, and the second field includes a second identifier and a second information to assign a second bandwidth narrower than a maximum bandwidth by which the predetermined channel can be extended to the second terminals, and the third field includes a third identifier and a third information to assign channels different from any channel assigned to the first bandwidth or the second bandwidth among a plurality of channels in the maximum bandwidth; and the first frame includes a first field, a second field and a third field, the first field includes a first identifier and a first information to assign a first bandwidth narrower than a maximum bandwidth up to which a predetermined channel can be extended to the first terminals, and the second field includes a second identifier and a second information to assign a second bandwidth narrower than a maximum bandwidth by which the predetermined channel can be extended to the second terminals, and the third field includes a third identifier and a third information to assign channels different from any channel assigned to the first bandwidth or the second bandwidth among a plurality of channels in the maximum bandwidth; and controlling circuitry (20, 60) configured to control communication with the first wireless communication device, wherein the wireless communication device is one of the third terminals compliant with the third standard, the first identifier can be interpreted by the first terminals, and the second terminals and the third terminals, the second identifier can be interpreted by the second terminals, and the third identifier can be interpreted by the third terminals, the controlling circuitry is configured to extract the third information from the third field by detecting the third identifier in the third field of the first frame and specify a plurality of channels for use in communication with the first wireless communication device based on the extracted third information.