A radio transmission station comprising multiple transmitting antennas, a beamformer, a beam-discovery signal generator, an arrangement pattern determiner, a radio receiver and a weight determiner characterized by: the multiple transmitting antennas configured to convert electrical signals into radio waves and emit the radio waves; the beamformer configured to control directions of beams of the radio waves emitted from the transmitting antennas by giving beamforming weights to the electrical signals supplied to the transmitting antennas; the beam-discovery signal generator configured to generate a beam-discovery signal that enables a radio reception station, after the radio reception station receiving the beams, to identify the directions of the beams, and configured to supply the beam-discovery signal to the beamformer in order for the transmitting antennas to emit the beams corresponding to the beam-discovery signal in multiple directions; the arrangement pattern determiner configured to determine, based on at least a situation of the radio reception station, from among pre-prepared multiple candidates, an arrangement pattern with which multiple resource points to which the beam-discovery signal is mapped are arranged, the resource points being among communication resources, the resource points and the communication resources being defined by frequencies and times; the radio receiver configured to receive a signal from the radio reception station; and the weight determiner configured to determine, based on information that indicates a suitable direction among the directions of the beams corresponding to the beam-discovery signal, a suitable beamforming weight that is to be given in the beamformer to a data signal addressed to the radio reception station, the information being reported from the radio reception station and then received by the radio receiver, wherein the situation of the radio reception station is at least one of the moving speed of the radio reception station, a moving image that is taken by a camera of the radio reception station, the location of the radio reception station, the distance from the radio transmission station to the radio reception station and a moving distance of the radio reception station. the multiple transmitting antennas configured to convert electrical signals into radio waves and emit the radio waves; the beamformer configured to control directions of beams of the radio waves emitted from the transmitting antennas by giving beamforming weights to the electrical signals supplied to the transmitting antennas; the beam-discovery signal generator configured to generate a beam-discovery signal that enables a radio reception station, after the radio reception station receiving the beams, to identify the directions of the beams, and configured to supply the beam-discovery signal to the beamformer in order for the transmitting antennas to emit the beams corresponding to the beam-discovery signal in multiple directions; the arrangement pattern determiner configured to determine, based on at least a situation of the radio reception station, from among pre-prepared multiple candidates, an arrangement pattern with which multiple resource points to which the beam-discovery signal is mapped are arranged, the resource points being among communication resources, the resource points and the communication resources being defined by frequencies and times; the radio receiver configured to receive a signal from the radio reception station; and the weight determiner configured to determine, based on information that indicates a suitable direction among the directions of the beams corresponding to the beam-discovery signal, a suitable beamforming weight that is to be given in the beamformer to a data signal addressed to the radio reception station, the information being reported from the radio reception station and then received by the radio receiver, wherein the situation of the radio reception station is at least one of the moving speed of the radio reception station, a moving image that is taken by a camera of the radio reception station, the location of the radio reception station, the distance from the radio transmission station to the radio reception station and a moving distance of the radio reception station.