Patent ID: 8208576
Filing Date: 2012-06-26
Classification: H04B,H04L

Abstract:
1. A method for transmitting signals at a transmitter of a Multi-Input Multi-Output (MIMO) system using a plurality of antennas, the method comprising: performing a precoding on one or more streams of signals at a precoder to map the one or more streams to the plurality of antennas using a precoding matrix with a subset index (i) selected from a subset of a codebook, wherein the subset index (i) cyclically increases every (v) contiguous resource indices within a range from 0 to (N wherein the codebook includes (N) precoding matrices of {P wherein the subset of the codebook includes (N {P wherein the subset index (i) of each (N wherein each of the subset indices of 0, 1, . . . , (N transmitting the precoded signals to a receiver.