A wireless communication device which communicates with first terminals compliant with a first standard, second terminals compliant with a second standard and third terminals compliant with a third standard within a communication group, including the wireless communication device, comprising: a transmitter configured to transmit a first frame to the first terminals, the second terminals and the third terminals, the first frame is a frame for notification of operation information of the communication group and the first frame includes a first field, and at least one of a second field and a third field, wherein the first field includes a first identifier of the first field and a first information, the first information designating a first bandwidth narrower than a first maximum available bandwidth of the first terminal to the first terminal in the communication group, the second field includes a second identifier of the second field and a second information used in combination with the first information, the combination of the first information and the second information designating a second bandwidth equal to or narrower than a second maximum available bandwidth of the second terminal to the second terminal in the communication group, and, the third field includes a third identifier of the third field and a third information used in combination with the first information, the combination of the first information and the third information designating: a third bandwidth to the third terminal for use in the communication group if the third field exists in the first frame and designating the second bandwidth to the third terminal for use in the communication group if the third information does not exist in the first frame, the second bandwidth encompasses the first bandwidth, and the third bandwidth is broader than each of the first bandwidth and the second bandwidth and encompasses each of the first bandwidth and the second bandwidth; and controlling circuitry (20, 60) configured to control the transmitter, wherein the first identifier is interpreted by the first terminals, and the second terminals and the third terminals, the second identifier is interpreted by the second terminals and the third terminals, and is not interpreted by the first terminals, and the third identifier is interpreted by the third terminals and is not interpreted by the first terminals and the second terminals. a transmitter configured to transmit a first frame to the first terminals, the second terminals and the third terminals, the first frame is a frame for notification of operation information of the communication group and the first frame includes a first field, and at least one of a second field and a third field, wherein the first field includes a first identifier of the first field and a first information, the first information designating a first bandwidth narrower than a first maximum available bandwidth of the first terminal to the first terminal in the communication group, the second field includes a second identifier of the second field and a second information used in combination with the first information, the combination of the first information and the second information designating a second bandwidth equal to or narrower than a second maximum available bandwidth of the second terminal to the second terminal in the communication group, and, the third field includes a third identifier of the third field and a third information used in combination with the first information, the combination of the first information and the third information designating: a third bandwidth to the third terminal for use in the communication group if the third field exists in the first frame and designating the second bandwidth to the third terminal for use in the communication group if the third information does not exist in the first frame, the second bandwidth encompasses the first bandwidth, and the third bandwidth is broader than each of the first bandwidth and the second bandwidth and encompasses each of the first bandwidth and the second bandwidth; and controlling circuitry (20, 60) configured to control the transmitter, wherein the first identifier is interpreted by the first terminals, and the second terminals and the third terminals, the second identifier is interpreted by the second terminals and the third terminals, and is not interpreted by the first terminals, and the third identifier is interpreted by the third terminals and is not interpreted by the first terminals and the second terminals.