Patent ID: 7151808

Claim:
An MIMO receiver comprising an MIMO adaptive equalizer in which signals received by way of M antennas (where M is an integer equal to and greater than 2) for N signal sequences (where N is an integer equal to and greater than 2) transmitted on a common frequency band are subject to an adaptive equalization using an equalization start timing signal, an equalization duration signal and a channel status estimate to be divided into symbol sequences which corresponds to N transmitters; a signal sequence decoder for decoding N output symbol sequences from the MIMO adaptive equalizer; a training sequence generator for generating a training symbol sequence having the same symbol sequence as a training symbol sequence in the transmitted signal sequence; a first sync detector for receiving the training symbol sequence and a received signal as inputs to generate an equalization start timing signal and an equalization duration signal; a channel estimator for receiving the training symbol sequence, the equalization start timing signal, the equalization duration signal and the received signal as inputs to estimate a channel status; a replica generator for receiving the training symbol sequence, the equalization start timing signal, the equalization duration signal and the estimated channel status as inputs to generate a replica of the training symbol with respect to the received signal; an error signal generator for receiving the received signal and the received replica as inputs to subtract the received signal replica in the training symbol sequence from the received signal to generate an error signal; an adder for receiving the error signal and the received signal replica with respect to the training symbol sequence in at least one intended transmitted signal sequence as inputs to add them together to generate an interference suppression received signal which acts to suppress the received signals other than the intended transmitted signal sequence; and a second sync detector for receiving the interference suppression received signal and the training symbol sequence as inputs to generate the equalization start timing signal and the equalization duration signal.