Codebook configuration method and user equipment

[0179] The method in Embodiment 2 is also applicable to the configuration information of the codebook subset restriction of the antenna ports in the horizontal direction and the vertical direction. Correspondingly, the first configuration information is the enabling restriction information of the codebook group after all the precoding matrices in the codebook with the number of antenna ports X1 are grouped, and all the precoding matrices in the codebook with the number of antenna ports are X1 The grouping is predefined, and the second configuration information is enabling and restricting information of the precoding matrix in each codebook group. Or, the first configuration information is the enabling restriction information of the codebook group after all the precoding matrices in the codebook with the number of antenna ports being X2 are grouped, and the grouping of all the precoding matrices in the codebook with the number of antenna ports being X2 is predefined, and the se...

[0187] The method in the third embodiment is also applicable to the configuration information of the codebook subset restriction of the antenna ports in the horizontal direction and the vertical direction. Correspondingly, the first configuration information is the configuration information of the codebook subset restriction of X5 antenna ports, and the second configuration information is the configuration information of the codebook subset restriction of X6 antenna ports, where X1=X5+X6, and X5 =X6, X5 antenna ports and X6 antenna ports respectively correspond to different polarization directions. Or, the first configuration information is the configuration information of the codebook subset restriction of X7 antenna ports, and the second configuration information is the configuration information of the codebook subset restriction of X8 antenna ports, where X2=X7+X8, and X7= The X8, X7 antenna ports and the X8 antenna ports respectively correspond to different polarization di...