Method of beamforming

Mechanisms of reducing beamforming feedback reporting sizes in WIFI communication. At a beamformee STA, beamforming feedback matrices generated from channel estimation are subject to two compression processes: first compressed to angles through Givens rotation and then further compressed by using so...

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Bibliographic Details
Main Author LIU, JIAN-HAN
Format Patent
LanguageChinese
English
Published 16.04.2020
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Summary:Mechanisms of reducing beamforming feedback reporting sizes in WIFI communication. At a beamformee STA, beamforming feedback matrices generated from channel estimation are subject to two compression processes: first compressed to angles through Givens rotation and then further compressed by using source coding. The double compressed feedback information is transmitted in a report to the beamformer. Accordingly, the beamformer reconstructs the feedback matrices by first decompressing the reported information by source decoding and then further decompressing based on the Givens rotation. In some other embodiments, the beamformee STA uses a beambook to map the beamforming feedback matrices to predetermined beamforming vectors. The associated indices of the vectors, which may be compressed, are transmitted in a beamforming feedback report.
Bibliography:Application Number: TW20198135782