Patent · US Active

Systems and methods for modified frequency-isolation self-interference cancellation

US10230422B2 · kind B2 · utility

1Cited by

136References

21Claims

0Family size

Assignee

Kumu Networks, Inc. · US

Inventors

Dinesh Bharadia · Stanford, US
Jeffrey Mehlman · Sunnyvale, US
Wilhelm Steffen Hahn · Schonach, DE

Key dates

Filing date	Aug 24, 2017
Grant date	Mar 12, 2019
Priority date	—
Expiry date	Aug 24, 2037

Classification

Technology area (CPC H)Electricity
CPC primaryH04L5/1461
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

A system for frequency isolation modified self-interference cancellation includes a transmit coupler, that samples an RF transmit signal; an RF self-interference canceller that transforms the sampled RF transmit signal to an RF self-interference cancellation signal; a receive coupler that combines the RF self-interference cancellation signal with the RF receive signal to form a reduced-interference receive signal; and a frequency shifter that frequency shifts only one of the RF transmit signal and the reduced-interference receive signal.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.