The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Sep. 05, 2017

Filed:

Oct. 11, 2016
Applicant:

Quantenna Communications, Inc., Fremont, CA (US);

Inventors:

Aykut Bultan, Santa Clara, CA (US);

Sigurd Schelstraete, Menlo Park, CA (US);

Simon John Duxbury, Piedmont, CA (US);

Assignee:

Quantenna Communications, Inc., Fremont, CA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04L 5/12 (2006.01); H04L 27/28 (2006.01); H04B 7/0417 (2017.01); H04L 5/00 (2006.01); H04B 7/0452 (2017.01); H04W 88/08 (2009.01);
U.S. Cl.
CPC ...
H04B 7/0417 (2013.01); H04B 7/0452 (2013.01); H04L 5/006 (2013.01); H04L 5/0007 (2013.01); H04W 88/08 (2013.01);
Abstract

A WAP including: a sounding mode module, a sounding matrix generator, a sounding aggregator, a gain normalizer and a beamforming expansion module. The sounding mode module determines whether a number of communication streams supported by the WAP matches the number of streams contained in a sounding response from a station, and initiates a composite set of soundings when those capabilities do not match. The sounding matrix generator generates linearly independent spatial mapping matrices each associated with a corresponding one of the set of composite soundings and at least one reference SMM. The sounding aggregator aggregates partial sounding feedback matrices received from the targeted station node in response to the composite soundings. The gain normalizer normalizes the partial sounding feedback matrices utilizing the reference SMM. The beamforming expansion module expands the aggregated sounding feedback matrices into a full beamforming matrix for spatially mapping downlink communications.


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