Patent ID: 8804796
Filing Date: 2014-08-12
Classification: H04B,H04L

Abstract:
1. A wireless apparatus to transmit a signal by using a plurality of antennas, the wireless apparatus comprising: a transmitter configured to transmit the signal; a first switching unit configured to switch a transmit beam pattern of the transmitter; a first receiver configured to receive, from a wireless reception apparatus which receives the signal, a transmit beam pattern with better reception quality among transmit beam patterns switched to by the first switching unit; a generation unit configured to generate a transmit beam pattern obtained by rotating a phase of the transmit beam pattern received by the first receiver; a second switching unit configured to switch a transmit beam pattern of the transmitter between a transmit beam pattern received by the first receiver and a transmit beam pattern generated by the generation unit; a second receiver configured to receive, from the wireless reception apparatus, a transmit beam pattern of a combination with better reception quality out of combinations of the transmit beam patterns switched to by the second switching unit and receive beam patterns switched to by the wireless reception apparatus; and a setting unit configured to set a transmit beam pattern of the transmitter in the transmit beam pattern received by the second receiver.