Patent ID: 8718575

Claim:
A radio communication device having a plurality of antennas that is capable of transmitting and receiving radio signals to and from a radio station, the radio communication device comprising: a direction decision section that decides a direction vector that represents a direction from the radio communication device to said radio station based on the radio signals that are received from said radio station by said plurality of antennas and computes a plane on which the direction vector becomes a perpendicular line; a group decision section that extracts combinations of antennas of the plurality of antennas having a group number smaller than a number of said plurality of antennas and decides that the combinations are groups; a distance computation section that computes a distance between coordinates of the antennas that make up each of said groups projected on said plane in parallel with said direction vector and decides that a shortest distance of computed results of the distance between the coordinates of the antennas that make up each of said groups should be a group shortest distance; an identification section that identifies a group of the plurality of antennas in which said group shortest distance is the longest; and a plurality of communication sections that perform communication with said radio station using the plurality of antennas that make up the group identified by said identification section.