A wireless communication device, comprising: a receiver configured to receive a first frame for requesting transmission permission, a transmitter address of the first frame is an address of a first wireless communication device and a receiver address of the first frame is an address of the wireless communication device and the first frame is a MAC, Medium Access Control, frame; and a transmitter configured to transmit a second frame for permission of requested transmission a predetermined time of period after the first frame is received in response to receipt of the first frame, wherein the transmitter generates the second frame under one of a first address process or a second address process, and the second frame is a MAC, Medium Access Control, frame, wherein the first address process is a process to copy a value in a transmitter address field of the first frame, change a first region of the copied value to a predetermined first value, and set a resultant value in a receiver address field of the second frame, the second address process is a process to copy a value in a transmitter address field of the first frame and set the copied value in the receiver address field of the second frame, the predetermined first value is a value different from values in first regions of addresses of the first wireless communication device and a second wireless communication device, the second wireless communication device is capable of receiving the second frame, and the predetermined first value is identifiable by the first wireless communication device and the second wireless communication device and the transmitter is configured to select the first address process if a multi-user multiplexing transmission of the first wireless communication device and the second wireless communication device is permitted, and generate the second frame under the first address process and transmit the second frame select the second address process if a single user transmission of only the first wireless communication device is permitted, generate the second frame under the second address process and transmit the second frame. a receiver configured to receive a first frame for requesting transmission permission, a transmitter address of the first frame is an address of a first wireless communication device and a receiver address of the first frame is an address of the wireless communication device and the first frame is a MAC, Medium Access Control, frame; and a transmitter configured to transmit a second frame for permission of requested transmission a predetermined time of period after the first frame is received in response to receipt of the first frame, wherein the transmitter generates the second frame under one of a first address process or a second address process, and the second frame is a MAC, Medium Access Control, frame, wherein the first address process is a process to copy a value in a transmitter address field of the first frame, change a first region of the copied value to a predetermined first value, and set a resultant value in a receiver address field of the second frame, the second address process is a process to copy a value in a transmitter address field of the first frame and set the copied value in the receiver address field of the second frame, the predetermined first value is a value different from values in first regions of addresses of the first wireless communication device and a second wireless communication device, the second wireless communication device is capable of receiving the second frame, and the predetermined first value is identifiable by the first wireless communication device and the second wireless communication device and the transmitter is configured to select the first address process if a multi-user multiplexing transmission of the first wireless communication device and the second wireless communication device is permitted, and generate the second frame under the first address process and transmit the second frame select the second address process if a single user transmission of only the first wireless communication device is permitted, generate the second frame under the second address process and transmit the second frame.