Patent ID: 7496131
Filing Date: 2009-02-24
Classification: H04B

Abstract:
1. A radio reception system for receiving signals from a plurality of transmitters using a plurality of antennas at a single base station site, comprising: signal processing means for applying a predetermined signal processing on the signals received with said plurality of antennas; signal extraction means for extracting a signal component corresponding to a particular transmitter among said plurality of transmitters according to the signals output from said signal processing means, wherein the signal component is extracted by adaptive array processing for each transmitter; and interference removal means for removing an interference signal component by a signal component of another transmitter included in the signal component extracted by said signal extraction means, wherein said interference removal means includes: estimation means for estimating a plurality of parameter information associated with signal components from said plurality of transmitters included in the signal component extracted by said signal extraction means, a plurality of multiplication means for multiplying the signals of said plurality of transmitters by said plurality of parameter information, means for subtracting output signals of said plurality of multiplication means from the signal component extracted by said signal extraction means, error estimation means for estimating an error according to an output signal of said subtraction means, and selecting means for selecting and providing a series of signals with the smallest error estimated by said error estimation means.