Patent ID: 7145942

Claim:
A radio reception system capable of receiving signals from a plurality of users using a plurality of antennas, comprising: signal processing means for performing a prescribed signal processing on the signals received by said plurality of antennas; a plurality of first signal extracting means for extracting signal components corresponding to said plurality of users, respectively, based on a signal output from said signal processing means; a plurality of first estimating means for estimating parameter information related to relation between the signal components extracted by said first signal extracting means and the received signal output from said signal processing means; a plurality of first error determining means for determining whether the signal components corresponding to the plurality of users extracted by said first signal extracting means include a demodulation error or not, respectively; and first operating means for subtracting, from the signal output from said signal processing means, said extracted signal component determined by said first error determining means not to include any demodulation error, in consideration of corresponding said parameter information.