公开(公告)号：US20220416912A1

公开(公告)日：2022-12-29

申请号：US17903450

申请日：2022-09-06

Applicant: Kumu Networks, Inc.

Inventor： Mayank Jain ,  Wilhelm Steffen Hahn ,  Jung-Il Choi ,  Jeffrey Mehlman

IPC: H04B15/02 ,  H04B1/525 ,  H04L5/14

Abstract: A system for enhancing isolation in coexisting time-division duplexed (TDD) transceivers includes: a blocker canceller that transforms a transmit signal of a TDD transceiver into a blocker cancellation signal configured to remove transmit-band interference in a receive signal; a first filter that filters the blocker cancellation signal; a second filter that filters the transmit signal; and a transmit-noise canceller that transforms the filtered transmit signal into a transmit noise cancellation signal configured to remove receive-band interference in the receive signal.

公开(公告)号：US10673519B2

公开(公告)日：2020-06-02

申请号：US16118979

申请日：2018-08-31

Applicant: Kumu Networks, Inc.

Inventor： Steven Hong ,  Jeffrey Mehlman ,  Joel Brand ,  Jung-Il Choi ,  Mayank Jain

IPC: H04B1/525 ,  H04B7/155 ,  H04B7/0413

Abstract: An optically-enhanced relay including a first transmitter that converts a first digital transmit signal to a first analog transmit signal, a first receiver that converts a first analog receive signal to a first digital receive signal, a second transmitter that converts a second digital transmit signal to a second analog transmit signal, a second receiver that converts a second analog receive signal to a second digital receive signal, and an optically-enhanced analog self-interference canceller that generates a first self-interference cancellation signal based on at least one of the first digital transmit signal and the first analog transmit signal, and combines the first self-interference cancellation signal with at least one of the first digital receive signal and the first analog receive signal.

公开(公告)号：US20190158193A1

公开(公告)日：2019-05-23

申请号：US16197200

申请日：2018-11-20

Applicant: Kumu Networks, Inc.

Inventor： Mayank Jain ,  Wilhelm Steffen Hahn ,  Jung-II Choi ,  Jeffrey Mehlman

IPC: H04B15/02 ,  H04L5/14 ,  H04B1/525

Abstract: A system for enhancing isolation in coexisting time-division duplexed (TDD) transceivers includes: a blocker canceller that transforms a transmit signal of a TDD transceiver into a blocker cancellation signal configured to remove transmit-band interference in a receive signal; a first filter that filters the blocker cancellation signal; a second filter that filters the transmit signal; and a transmit-noise canceller that transforms the filtered transmit signal into a transmit noise cancellation signal configured to remove receive-band interference in the receive signal.

公开(公告)号：US10177836B2

公开(公告)日：2019-01-08

申请号：US14473653

申请日：2014-08-29

Applicant: Kumu Networks, Inc.

Inventor： Steven Hong ,  Jeffrey Mehlman ,  Joel Brand ,  Jung-Il Choi ,  Mayank Jain

IPC: H04B7/0413 ,  H04B7/155

Abstract: A relay including a first transmitter that converts a first digital transmit signal to a first analog transmit signal, a first receiver that converts a first analog receive signal to a first digital receive signal, a second transmitter that converts a second digital transmit signal to a second analog transmit signal, a second receiver that converts a second analog receive signal to a second digital receive signal, and a self-interference canceller that generates a first self-interference cancellation signal based on at least one of the first digital transmit signal and the first analog transmit signal, and combines the first self-interference cancellation signal with at least one of the first digital receive signal and the first analog receive signal.

公开(公告)号：US20150280893A1

公开(公告)日：2015-10-01

申请号：US14670321

申请日：2015-03-26

Applicant: Kumu Networks, Inc.

Inventor： Jung-Il Choi ,  Mayank Jain ,  Dinesh Bharadia ,  Jeffrey Mehlman ,  Steven Hong

IPC: H04L5/14 ,  H04B1/12

CPC classification number: H04L5/14 ,  H04B1/525

Abstract: A method for self-interference canceller tuning for a near band radio includes receiving, in a first frequency band, an RF transmit signal of the near band radio; receiving, in a second frequency band, an RF receive signal of the near band radio; generating a self-interference cancellation signal from the RF transmit signal based on a set of configuration parameters; combining the self-interference cancellation signal with the RF receive signal to create a composite receive signal; and adapting the set of configuration parameters based on the composite receive signal.

Abstract translation: 用于近波段无线电的自干扰消除器调谐的方法包括在第一频带中接收近波段无线电的RF发射信号; 在第二频带中接收近波段无线电的RF接收信号; 基于一组配置参数从所述RF发射信号生成自干扰消除信号; 将自干扰消除信号与RF接收信号组合以产生复合接收信号; 以及基于所述复合接收信号来适配所述一组配置参数。

公开(公告)号：US10979131B2

公开(公告)日：2021-04-13

申请号：US16202830

申请日：2018-11-28

Applicant: Kumu Networks, Inc.

Inventor： Steven Hong ,  Jeffrey Mehlman ,  Joel Brand ,  Jung-Il Choi ,  Mayank Jain

IPC: H04B7/04 ,  H04B7/155 ,  H04B7/0413

Abstract: A relay including a first transmitter that converts a first digital transmit signal to a first analog transmit signal, a first receiver that converts a first analog receive signal to a first digital receive signal, a second transmitter that converts a second digital transmit signal to a second analog transmit signal, a second receiver that converts a second analog receive signal to a second digital receive signal, and a self-interference canceller that generates a first self-interference cancellation signal based on at least one of the first digital transmit signal and the first analog transmit signal, and combines the first self-interference cancellation signal with at least one of the first digital receive signal and the first analog receive signal.

公开(公告)号：US10230422B2

公开(公告)日：2019-03-12

申请号：US15686022

申请日：2017-08-24

Applicant: Kumu Networks, Inc.

Inventor： Dinesh Bharadia ,  Jeffrey Mehlman ,  Wilhelm Steffen Hahn

IPC: H03D1/04 ,  H04B1/525 ,  H04L5/14 ,  H04B1/10 ,  H04B1/04

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.

公开(公告)号：US20180375566A1

公开(公告)日：2018-12-27

申请号：US16118979

申请日：2018-08-31

Applicant: Kumu Networks, Inc.

Inventor： Steven Hong ,  Jeffrey Mehlman ,  Joel Brand ,  Jung-Il Choi ,  Mayank Jain

IPC: H04B7/155 ,  H04B7/0413 ,  H04B1/525

CPC classification number: H04B7/15585 ,  H04B1/525 ,  H04B7/0413

Abstract: An optically-enhanced relay including a first transmitter that converts a first digital transmit signal to a first analog transmit signal, a first receiver that converts a first analog receive signal to a first digital receive signal, a second transmitter that converts a second digital transmit signal to a second analog transmit signal, a second receiver that converts a second analog receive signal to a second digital receive signal, and an optically-enhanced analog self-interference canceller that generates a first self-interference cancellation signal based on at least one of the first digital transmit signal and the first analog transmit signal, and combines the first self-interference cancellation signal with at least one of the first digital receive signal and the first analog receive signal.

公开(公告)号：US09774405B2

公开(公告)日：2017-09-26

申请号：US14812552

申请日：2015-07-29

Applicant: Kumu Networks, Inc.

Inventor： Dinesh Bharadia ,  Jeffrey Mehlman ,  Wilhelm Steffen Hahn

IPC: H04B15/00 ,  H04B1/525 ,  H04L5/14

CPC classification number: H04B15/00 ,  H04B1/525 ,  H04L5/1461

Abstract: A system for frequency-isolated self-interference cancellation includes a transmit coupler, that samples an RF transmit signal to create a sampled RF transmit signal having a first RF carrier frequency, 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 an RF receive signal to form a reduced-interference receive signal, and a frequency shifter.

公开(公告)号：US11637623B2

公开(公告)日：2023-04-25

申请号：US16859625

申请日：2020-04-27

Applicant: Kumu Networks, Inc.

Inventor： Steven Hong ,  Jeffrey Mehlman ,  Joel Brand ,  Jung-Il Choi ,  Mayank Jain

IPC: H04B7/15 ,  H04B7/155 ,  H04B1/525 ,  H04B7/0413

Abstract: An optically-enhanced relay including a first transmitter that converts a first digital transmit signal to a first analog transmit signal, a first receiver that converts a first analog receive signal to a first digital receive signal, a second transmitter that converts a second digital transmit signal to a second analog transmit signal, a second receiver that converts a second analog receive signal to a second digital receive signal, and an optically-enhanced analog self-interference canceller that generates a first self-interference cancellation signal based on at least one of the first digital transmit signal and the first analog transmit signal, and combines the first self-interference cancellation signal with at least one of the first digital receive signal and the first analog receive signal.