A radio communication device is provided, including a radio control unit for achieving timing synchronization using frames having a fixed period, assigning a transmission and reception interval during which a report signal for informing state management information about each communication device and a control signal for controlling each radio communication device are transmitted and received to a fixed time interval at the head of each frame, for transmitting and receiving application data to and from a partner radio communication device during another time interval, and for reserving and securing some of communication band units, each of which has a fixed width and into which each frame is divided according to a difference between the transmission rate of the application data and that of a signal in a wireless section, on a unit-by-unit basis by using the report signal and the control signal.