Patent Number: 7,043,275

Title: Radio communication apparatus using adaptive antenna

Abstract: In a radio communication apparatus, delay profiles of a desired wave and delay waves thereof are estimated by plural delay profile estimation sections for each of received signals from directional antennas constituting an array antenna. Received signals from the antennas selected by a reception antenna selector on the basis of the delay profile are subjected to a temporal/spatial equalization processing by an adaptive signal processing section and a path diversity combining section, thereby obtaining a reception output. An arrival angle range of the desired wave is estimated by a DOA estimation section from the delay profile estimated by the delay profile estimation section. Based on the arrival angle range, the antenna for transmission is selected by a transmission antenna selection section, and transmission signals are sent out.

Inventors: Matsuoka; Hidehiro (Yokohama, JP), Shoki; Hiroki (Kawasaki, JP)

Assignee: Kabushiki Kaisha Toshiba

International Classification: H04B 1/38 (20060101)

Expiration Date: 5/09/02018