| 摘要 |
In order to measure accurate channel state information (CSI) in an interference rejection combining (IRC) receiver (10) that is capable of suppressing intercell interference, this IRC receiver (10) is provided with: a channel estimation unit (11) that estimates a channel matrix (H) by performing a channel estimation process; a transmit weight matrix generation unit (13) that generates a transmit weight matrix (WTX); a covariance matrix estimation unit (12) that estimates a covariance matrix (RI+N) and an interference signal covariance matrix (I) comprising and an interference signal component on the basis of a cell-specific reference signal (CRS); an IRC receive weight generation unit (14) that generates an IRC receive weight (WIRC) on the basis of the channel matrix (H), the transmit weight matrix (WTX) and the covariance matrix (RI+N); and a reception-signal-to-interference-plus-noise ratio (SINR) estimation unit (15) that estimates a reception SINR on the basis of the channel matrix (H), the interference signal covariance matrix (I), the transmit weight matrix (WTX) and the IRC receive weight (WIRC). |
