Patent ID: 7496384
Filing Date: 2009-02-24
Classification: H01Q,H04B,H04J,H04W

Abstract:
1. A radio communication system comprising: a radio communication terminal; a base station for performing radio communication with the radio communication terminal; and a control station connected to the base station via an optical transmission line; said base station comprising an array antenna comprising a plurality of antenna elements, and a feedback unit configured to feed respective transmitted signals corresponding to said antenna elements transmitted from said control station via said optical transmission line back to said control station via said optical transmission; and said control station comprising a comparing detection unit configured to compare at least two signals among said respective transmitted signals fed back from said feedback unit, and detecting a phase difference and/or an amplitude fluctuation amount, and a compensation unit configured to compensate for the respective transmitted signals corresponding to said plurality of antenna elements based on the phase difference and/or the amplitude fluctuation amount detected by said comparing detection unit.