Patent ID: 8670500
Filing Date: 2014-03-11
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: encoding input signals of an encoder to output (R) streams of signals, wherein (R) corresponds to a rank predetermined among {R1, R2, . . . , Rm}, wherein (m) is a predetermined integer number; performing a precoding on the (R) streams of signals at a precoder using a precoding matrix selected from a subset for (R) of a codebook, wherein the subset for (R) comprises (N transmitting the precoded signals to a receiver, wherein: (N Ri and Rjε{R1, R2, . . . , Rm}; and Ri<Rj.