Patent · US Active

Systems and methods for configurable hybrid self-interference cancellation

US10425115B2 · kind B2 · utility

3Cited by

175References

24Claims

0Family size

Assignee

Kumu Networks, Inc. · US

Inventors

Wilhelm Steffen Hahn · Schonach, DE
Alfred Riddle · Sunnyvale, US
Ernie Landi · Sunnyvale, US
Dai Sieh · Palo Alto, US
Jung-Il Choi · Sunnyvale, US
Mayank Jain · Sunnyvale, US

Key dates

Filing date	Feb 27, 2019
Grant date	Sep 24, 2019
Priority date	—
Expiry date	Feb 27, 2039

Classification

Technology area (CPC H)Electricity
CPC primaryH04L5/14
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

A system for self-interference cancellation includes a frequency downconverter that decomposes a sampled RF transmit signal into an in-phase transmit signal and a quadrature transmit signal; a first analog vector modulator that scales the transmit signals to generate first scaled transmit signals; a second analog vector modulator that scales delayed transmit signals to generate second scaled transmit signals; a frequency upconverter that recomposes the scaled transmit signals into an RF self-interference cancellation signal; and a receive coupler that that combines the RF self-interference cancellation signal with a RF receive signal to reduce self-interference.

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