Patent ID: 7676005
Filing Date: 2010-03-09
Classification: H04B

Abstract:
1. A wireless communication apparatus for conducting wireless communications according to a time division duplex (TDD) system, comprising: a plurality of antennas; a transmission circuit for transferring a transmission signal to the plurality of antennas; a reception circuit for transferring a reception signal from the plurality of antennas; a channel estimation unit which detects channel information using the reception signal from the reception circuit; a correction value detection unit which detects a correction value for correcting deviation occurring between the transmission circuit and the reception circuit using the channel information from the channel estimation unit, wherein the correction value detection unit detects the correction value using a correction signal transmitted from a second wireless communication apparatus with which the wireless communication apparatus conducts communications; a reception weight generation unit which generates reception weight using the channel information from the channel estimation unit; a reception signal weighting and combining unit which weights a plurality of reception signals from the reception circuit using the reception weight and combines the signals; a transmission weight generation unit which generates transmission weight using the reception weight and the correction value from the correction value detection unit; and a transmission signal weighting unit which weights transmission data using the transmission weight.