Base wireless device and wireless communication method

A base wireless device (14) includes plural transmission buffers (46A, 46B) storing plural signals having transmission destinations that are different from each other, a transmission processing unit (26A) transmitting the signals to plural remote wireless devices (16) respectively, by transmitting the signals stored in the plural transmission buffers in a predetermined order, regardless of whether or not each transmission has been made successfully, and a storage control unit (28), wherein when a transmission of a signal (DPA) stored in one of the transmission buffers (46A) has been made successfully, the storage control unit overwrites the one transmission buffer (46A) from which the transmission has been made successfully, with another signal (DPC) to be transmitted to a transmission destination (16C) that is different from a transmission destination (16B) of a signal (DPB) stored in a transmission buffer (46B) other than the one transmission buffer (46A) from which the transmission has been made successfully, among the plural transmission buffers.