Abstract: A method for obtaining a precoding matrix includes obtaining a joint precoding matrix of M terminals based on statistical autocorrelation matrices respectively corresponding to N terminals in the M terminals, where M and N are positive integers, M?2, and 1?N?M. The method further includes outputting information that is useable to indicate the joint precoding matrix. The N terminals include a terminal nj, wherein a statistical autocorrelation matrix Rnj corresponding to the terminal nj is obtainable by filtering an autocorrelation matrix Rnj corresponding to the terminal nj in a frequency domain or a time domain, j is a positive integer, 1?j?N, and the autocorrelation matrix Rnj corresponding to the terminal nj is obtainable based on a channel estimation result Hnj corresponding to the terminal nj.

Abstract: A precoding weight calculation method and a related apparatus to provide improved communication quality. First channel estimation values and a plurality of second channel estimation values are obtained based on a resource block group. A first equalization coefficient is obtained based on the first channel estimation values. A second equalization coefficient is obtained based on the second channel estimation values. A plurality of first equivalent channel coefficients are obtained based on the first equalization coefficient. A plurality of second equivalent channel coefficients are obtained based on the second equalization coefficient. A first precoding weight and a second precoding weight are obtained based on the plurality of first equivalent channel coefficients and the plurality of second equivalent channel coefficients.

Abstract: This application provides a method for obtaining a precoding matrix and an apparatus. The method includes: respectively obtaining autocorrelation matrices of N terminals based on channel estimation results of the N terminals, where the autocorrelation matrices are filtered in frequency domain and/or time domain to obtain statistical autocorrelation matrices; obtaining a joint precoding matrix of M terminals based on the statistical autocorrelation matrices respectively corresponding to the N terminals; and outputting information that indicates the joint precoding matrix, where the N terminals belong to the M terminals, M?2, 1?N?M, and M and N are both positive integers.

Abstract: A precoding weight calculation method and a related apparatus to provide improved communication quality. First channel estimation values and a plurality of second channel estimation values are obtained based on a resource block group. A first equalization coefficient is obtained based on the first channel estimation values. A second equalization coefficient is obtained based on the second channel estimation values. A plurality of first equivalent channel coefficients are obtained based on the first equalization coefficient. A plurality of second equivalent channel coefficients are obtained based on the second equalization coefficient. A first precoding weight and a second precoding weight are obtained based on the plurality of first equivalent channel coefficients and the plurality of second equivalent channel coefficients.