Wireless communication apparatus and wireless communication method

Abstract

Provided is a wireless communication apparatus which prevents deterioration of communication characteristics because of a transmission weight of a greatest common factor and enhances the communication characteristics of feedback MIMO. A wireless communication apparatus having a plurality of antennas includes a reception unit for receiving signals of channels in a predetermined frequency band from another wireless communication apparatus and obtaining channel state information of the channels, a determination unit for determining a variation in the channel state, a channel state information calculation unit, if there is a variation in the channel state information, for calculating representative channel state information of the predetermined frequency band overall based on the variation, a transmission weight selection unit for selecting a transmission weight based on the representative channel state information, and a transmission unit for transmitting identification information of the transmission weight to the another wireless communication apparatus.

Dependencies are inferred from the claim text.