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：US20230378994A1

公开(公告)日：2023-11-23

申请号：US18230505

申请日：2023-08-04

Applicant: Kumu Networks, Inc.

Inventor： Jung-il Choi ,  Mayank Jain ,  Wilhelm Steffen Hahn ,  Alfred Riddle

IPC: H04B1/50 ,  H04B1/10 ,  H04B1/525 ,  H04B1/00

CPC classification number: H04B1/50 ,  H04B1/1027 ,  H04B1/525 ,  H04B1/0067 ,  H04B2001/1045 ,  H04B1/0057

Abstract: A system for interference mitigation includes: a transmit coupler; a receive coupler; a duplexer; and an interference cancellation module that includes a receive-band filter, a transmit-band filter, and an interference cancellation system.

公开(公告)号：US11764825B2

公开(公告)日：2023-09-19

申请号：US17972414

申请日：2022-10-24

Applicant: Kumu Networks, Inc.

Inventor： Jung-il Choi ,  Mayank Jain ,  Wilhelm Steffen Hahn ,  Alfred Riddle

IPC: H04B1/50 ,  H04B1/10 ,  H04B1/525 ,  H04B1/00

CPC classification number: H04B1/50 ,  H04B1/0067 ,  H04B1/1027 ,  H04B1/525 ,  H04B1/0057 ,  H04B2001/1045

Abstract: A system for interference mitigation includes: a first transmit coupler; a receive-band noise cancellation system; a first transmit-band filter; a second transmit coupler; a first receive coupler; a transmit-band noise cancellation system; a first receive-band filter; and a second receive coupler.

公开(公告)号：US20230188182A1

公开(公告)日：2023-06-15

申请号：US18077995

申请日：2022-12-08

Applicant: Kumu Networks, Inc.

Inventor： Jung-Il Choi ,  Mayank Jain

IPC: H04B7/0413 ,  H04B17/12

CPC classification number: H04B7/0413 ,  H04B17/12

Abstract: A system for interference cancellation, preferably including a plurality of analog taps. Each analog tap preferably includes one or more scalers and/or phase shifters, and can optionally include one or more delays. The system for interference cancellation can optionally be integrated with and/or otherwise associated with a MIMO communication system. A method for interference cancellation, preferably including: determining operation parameters and operating based on the determined parameters. The method is preferably performed using the system for interference cancellation (e.g., and/or an associated MIMO communication system), but can additionally or alternatively be performed using any other suitable system.

公开(公告)号：US11515906B2

公开(公告)日：2022-11-29

申请号：US17088438

申请日：2020-11-03

Applicant: Kumu Networks, Inc.

Inventor： Jung-il Choi ,  Mayank Jain ,  Wilhelm Steffen Hahn ,  Alfred Riddle

IPC: H04B1/50 ,  H04B1/10 ,  H04B1/525 ,  H04B1/00

Abstract: A system for interference mitigation includes: a first transmit coupler; a receive-band noise cancellation system; a first transmit-band filter; a second transmit coupler; a first receive coupler; a transmit-band noise cancellation system; a first receive-band filter; and a second receive coupler.

公开(公告)号：US11082074B2

公开(公告)日：2021-08-03

申请号：US16786066

申请日：2020-02-10

Applicant: Kumu Networks, Inc.

Inventor： Jung-Il Choi ,  Mayank Jain ,  Christian Hahn

IPC: H04B1/04 ,  H04B1/10

Abstract: A system for linearized-mixer interference mitigation includes first and second linearized frequency downconverters; a sampling analog interference filtering system that, in order to remove interference in the transmit band, filters the sampled BB transmit signal to generate a cleaned BB transmit signal; an analog interference canceller that transforms the cleaned BB transmit signal to a BB interference cancellation signal; and a first signal coupler that combines the BB interference cancellation signal and the BB receive signal in order to remove a first portion of receive-band interference.

公开(公告)号：US20210143917A1

公开(公告)日：2021-05-13

申请号：US17153010

申请日：2021-01-20

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：US10931383B2

公开(公告)日：2021-02-23

申请号：US16653057

申请日：2019-10-15

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：US20190181908A1

公开(公告)日：2019-06-13

申请号：US16248679

申请日：2019-01-15

Applicant: Kumu Networks, Inc.

Inventor： Jung-il Choi ,  Mayank Jain ,  Wihelm Steffen Hahn ,  Alfred Riddle

IPC: H04B1/50 ,  H04B1/00

Abstract: A system for interference mitigation includes: a first transmit coupler; a receive-band noise cancellation system; a first transmit-band filter; a second transmit coupler; a first receive coupler; a transmit-band noise cancellation system; a first receive-band filter; and a second receive coupler.

公开(公告)号：US20190123940A1

公开(公告)日：2019-04-25

申请号：US16229906

申请日：2018-12-21

Applicant: Kumu Networks, Inc.

Inventor： Rajendra Tushar Moorti ,  Jung-Il Choi ,  Mayank Jain

IPC: H04L25/03 ,  H04L12/801 ,  H04L27/26 ,  H04L25/02

CPC classification number: H04L25/03006 ,  H04B1/525 ,  H04B1/56 ,  H04L5/14 ,  H04L5/1461 ,  H04L25/0204 ,  H04L25/0328 ,  H04L27/265 ,  H04L47/29

Abstract: A method for adaptively-tuned digital self-interference cancellation includes generating a digital self-interference cancellation signal from a digital transmit signal based on a transform configuration; combining the digital self-interference cancellation signal with a receive signal to form a digital residue signal; generating a composite residue signal from the digital residue signal and the digital transmit signal; and updating the transform configuration based on the composite residue signal.