One prematch coding method of information gathering and transmission equipment

摘要

embodiments of the present invention reveal a method of collecting pre-coding information and a transmission device and relate to the communications field in order to improve the performance of a wireless communications system. a specific solution is: to pre-code, on the one hand, a first pilot signal according to a first pre-coding matrix, and to send a first pre-coded pilot signal to a receiving side, where the first pre-coding is the same as a pre-coding matrix used for current data transmission; pre-coding, on the transmission side, n second pilot signals according to n second pre-coding matrices, and sending n second pre-coded pilot signals to the receiving side, where n is an integer greater than or equal to 1, the second precoding arrays used for precoding the second pilot signals are different from each other, and the n second precoding arrays are different from the first precoding array; and receiving, on the transmission side, pre-coding feedback information sent from the receiving side. the present invention is used in a data transmission process.