A radio communication control method in a radio communication system, comprising a transmitter device provided with a precoder configured to carry out precoding by using a precoding matrix, a transmit beamformer configured to carry out transmit beamforming, in which variation in phase and amplitude corresponding to a transmit beamforming (BF) weight matrix is imparted to signals after precoding has been executed, and a number N T of transmission antennas (A T ) for transmitting the signals subjected to the transmit beamforming, and a receiver device provided with a number N R of reception antennas (A R ) for receiving signals that have been transmitted from the transmitter device and propagated through a space, a receive beamformer configured to carry out receive beamforming, in which variation in phase and amplitude corresponding to a receive BF weight matrix is imparted to the signals received by the plurality of reception antennas, and a postcoder configured to carry out, by using a postcoding matrix, postcoding on the signals that have been subjected to the analog receive beamforming, the method comprising: generating a receive BF output vector having a number N R of receive BF output components, by a number L R of receive beamforming circuits provided in the receive beamformer carrying out receive beamforming (N R /L R ) times in a time division manner with respect to a received signal vector received by the number N R of the reception antennas, wherein each receive BF output component corresponds to a first reference signal received by a different reception beam of a plurality of N R orthogonal reception beams; calculating reception power for each of the N R receive BF output components; and selecting the L R receive BF output components in decreasing order of reception power, and determining a suitable receive BF weight matrix including L R reception orthogonal BF weight vectors corresponding to the selected receive BF output components. a transmitter device provided with a precoder configured to carry out precoding by using a precoding matrix, a transmit beamformer configured to carry out transmit beamforming, in which variation in phase and amplitude corresponding to a transmit beamforming (BF) weight matrix is imparted to signals after precoding has been executed, and a number N T of transmission antennas (A T ) for transmitting the signals subjected to the transmit beamforming, and a receiver device provided with a number N R of reception antennas (A R ) for receiving signals that have been transmitted from the transmitter device and propagated through a space, a receive beamformer configured to carry out receive beamforming, in which variation in phase and amplitude corresponding to a receive BF weight matrix is imparted to the signals received by the plurality of reception antennas, and a postcoder configured to carry out, by using a postcoding matrix, postcoding on the signals that have been subjected to the analog receive beamforming, generating a receive BF output vector having a number N R of receive BF output components, by a number L R of receive beamforming circuits provided in the receive beamformer carrying out receive beamforming (N R /L R ) times in a time division manner with respect to a received signal vector received by the number N R of the reception antennas, wherein each receive BF output component corresponds to a first reference signal received by a different reception beam of a plurality of N R orthogonal reception beams; calculating reception power for each of the N R receive BF output components; and selecting the L R receive BF output components in decreasing order of reception power, and determining a suitable receive BF weight matrix including L R reception orthogonal BF weight vectors corresponding to the selected receive BF output components. <EOS>