FEEDBACK METHOD AND SYSTEM OF CORRELATION MATRIX FOR ANTENNA ARRAY

摘要

The present invention is correlated to the antenna array, and provides a feedback method and system of the matrix. The method includes: in accordance with predetermined criteria to indicate a correlation matrix is feedback from the receiver, including a plurality of predetermined code word correlation - selecting one of the code word from the matrix codebook (300); And the predetermined correlation - and the index of the selected codeword in the codebook matrix comprises the step (302) for feeding back to the transmitting end, each codeword is a codeword matrix, to approximate the correlation matrix of the antenna array at the transmitter. On the basis of the present invention, close-in arrangement, and preferably using a ULA antenna and the characteristics of its spatial correlation, the corresponding quantization and feedback codebook can be designed, it is possible to reduce the feedback overhead and computation complexity, Thus, such as MIMO system, and improves system performance of spatial correlation secondary system. ;