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. 14, 2021

Filed:

Sep. 17, 2020
Applicant:

Kumu Networks, Inc., Sunnyvale, CA (US);

Inventors:

Rajendra Tushar Moorti, Sunnyvale, CA (US);

Kumar Viswanatha, Sunnyvale, CA (US);

Assignee:

Kumu Networks, Inc., Sunnyvale, CA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/56 (2006.01); H04B 1/12 (2006.01); H04L 25/02 (2006.01); H04B 1/525 (2015.01); H04L 5/14 (2006.01); H04L 27/26 (2006.01);
U.S. Cl.
CPC ...
H04B 1/56 (2013.01); H04B 1/12 (2013.01); H04B 1/123 (2013.01); H04B 1/525 (2013.01); H04L 25/0202 (2013.01); H04L 5/14 (2013.01); H04L 27/2628 (2013.01); H04L 27/2647 (2013.01);
Abstract

A system for digital self-interference cancellation includes a filter that generates a reduced-noise digital residue signal; a channel estimator that generates a current self-interference channel estimate from a digital transmit signal, the reduced-noise digital residue signal, and past self-interference channel estimates; a controller that dynamically sets the digital transform configuration in response to changes in a controller-sampled digital residue signal; a predictor that modifies output of the channel estimator to compensate for a first time delay incurred in tuning the system for digital self-interference cancellation; and a channel memory that stores the past self-interference channel estimates.


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