METHOD, USER EQUIPMENT AND BASE STATION FOR TRANSMITTING FOUR-ANTENNA PRE-CODING MATRIX

摘要

The present invention discloses a method for transmitting a 4-antenna precoding matrix, a user equipment, and a base station. The method includes: determining a rank used for indicating the number of transmission layers; determining a first precoding matrix in a codebook set corresponding to the rank; determining a first PMI and a second PMI used for indicating the first precoding matrix; and sending the first PMI and the second PMI used for indicating the first precoding matrix to a base station. By means of the method for transmitting a 4-antenna precoding matrix, the user equipment, and the base station according to embodiments of the present invention, more precoding matrices that are applicable to a uniform linear array antenna may be indicated without changing a feedback mode or feedback bits, and it may be ensured that performance for application of a dual-polarized antenna is not affected, so that system performance may be improved and user experience may be enhanced.