Patent ID: 9124317
Filing Date: 2015-09-01
Classification: H04B,H04L

Abstract:
1. A method for performing channel estimation, the method comprising: determining, by a beamformer, that a beamformee is configured to perform channel estimation for up to a pre-configured number of transmit spatial streams from the beamformer, the pre-configured number of transmit spatial streams is less than a plurality of transmit spatial streams of the beamformer; determining, by the beamformer, a plurality of subsets of transmit spatial streams from the plurality of transmit spatial streams, a first subset of the plurality of subsets having at least one transmit spatial stream from a same antenna of the beamformer as at least one transmit spatial stream in another subset from the plurality of subsets; and sending, by the beamformer, a plurality of sounding frames to the beamformee for channel estimation based at least on the determined plurality of subsets of transmit spatial streams.