METHOD AND DEVICE FOR ACQUIRING PRECODING MATRIX

摘要

A method and device for acquiring a precoding matrix are provided by the present invention. The method for acquiring a precoding matrix includes: for each receiving end, selecting the interference vectors from the whole interference vectors as the interference space basis vectors, representing the remaining interference vectors as the linear combination of the interference space basis vectors, wherein the remaining interference vectors are the interference vectors in the whole interference vectors of the receiving end except the interference vectors which act as the interference space basis vectors (101); determining the precoding matrix used currently according to the linear combination of the interference space basis vectors represented by the remaining interference vectors of each receiving end and the current channel condition (102). The technical solution of the present invention can eliminate interference and do not generate Bit Error Rate (BER) floor.