Supporting high dimensional MU-MIMO beamforming by sounding multiple frames with different sets of antenna patterns
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United States of America Patent
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Jan 16, 2018
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app pub date -
Aug 31, 2015
filing date -
Feb 19, 2014
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Abstract
In some aspects, the disclosure is directed to methods and systems for performing channel estimation between a beamformer and a beamformee. A beamformer can determine 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 can be less than a plurality of transmit spatial streams of the beamformer. The beamformer can determine a plurality of subsets of transmit spatial streams from the plurality of transmit spatial streams. The beamformer can send a plurality of sounding frames to the beamformee for channel estimation based at least on the determined plurality of subsets of transmit spatial streams.
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