Patent ID: 8311160
Filing Date: 2012-11-13
Classification: H04B,H04L

Abstract:
1. A method, comprising: determining, in hardware, channel state information (CSI) for a single data stream transmitted via a plurality of antennas; determining, in hardware, cophasing angles for the plurality of antennas using the CSI; quantizing, in hardware, the cophasing angles; selecting, in a controller coupled to the hardware, either steering vector feedback or explicit beamforming feedback for transmission; generating, in the controller, the steering vector feedback based on the quantized cophasing angles when the steering vector feedback is selected for transmission; and generating, in the controller, the explicit beamforming CSI feedback based on using the quantized cophasing angles as indices into a look-up table when the explicit beamforming CSI feedback is selected for transmission.