Method and device for sending and receiving precoded signals on a wireless communication system

摘要: The present invention relates to a wireless communication system, and, more specifically, disclosed are method and device for sending receiving precoded signals. According one embodiment of the invention, whereby station transmits signal on system that supports multiple-antenna transmission comprises steps of: determining first matrix from codebook containing precoding matrices in which indicator is indicated, second PMI based matrix; carrying out by using so determined at least layer where be transmitted mapped; transmitting station. contained may respectively constituted block diagonal matrix, blocks independently each other, while an ancestor element child element, comprise phase rotation value.