公开(公告)号：US09036749B2

公开(公告)日：2015-05-19

申请号：US14456367

申请日：2014-08-11

申请人： Kumu Networks, Inc.

发明人： Jung-Il Choi ,  Mayank Jain ,  Joseph Shalizi ,  Jeff Mehlman

IPC分类号： H03D1/04 ,  H03D1/06 ,  H03K5/01 ,  H03K6/04 ,  H04B1/10 ,  H04B1/12 ,  H04L5/14 ,  H04L27/26

CPC分类号： H04B1/12 ,  H04B1/525 ,  H04L5/14 ,  H04L5/143 ,  H04L5/1461 ,  H04L27/2691

摘要： A system and method for analog self-interference cancellation that includes receiving an RF transmit signal of a full-duplex radio; frequency downconverting the RF transmit signal to an IF transmit signal; transforming the IF transmit signal into an IF self-interference signal using an IF analog self-interference cancelling circuit; frequency upconverting the IF self-interference signal to an RF self-interference signal; and combining the RF self-interference signal with an RF receive signal of the full-duplex radio.

摘要翻译： 一种用于模拟自干扰消除的系统和方法，包括：接收全双工无线电的RF发射信号; 将RF发射信号下变频到IF发射信号; 使用IF模拟自干扰消除电路将IF发射信号变换成IF自干扰信号; 将IF自干扰信号上变频到RF自干扰信号; 以及将RF自干扰信号与全双工无线电的RF接收信号组合。

公开(公告)号：US20150049834A1

公开(公告)日：2015-02-19

申请号：US14460218

申请日：2014-08-14

申请人： Kumu Networks, Inc.

发明人： Jung-Il Choi ,  Mayank Jain ,  Jeffrey Mehlman

IPC分类号： H04B15/00 ,  H04L5/14

CPC分类号： H04B1/525 ,  H04B1/48 ,  H04B7/0413 ,  H04B15/00 ,  H04B2001/485 ,  H04L5/14

摘要： A system for phase noise mitigated communication including a primary transmitter that converts a digital transmit signal to an analog transmit signal, a primary receiver that receives an analog receive signal and converts the analog receive signal to a digital receive signal, an analog self-interference canceller that samples the analog transmit signal, generates an analog self-interference cancellation signal based on the analog transmit signal, and combines the analog self-interference cancellation signal with the analog receive signal and a digital self-interference canceller that samples the digital transmit signal, generates a digital self-interference cancellation signal based on the digital transmit signal, and combines the digital self-interference cancellation signal with the digital receive signal.

公开(公告)号：US11742900B2

公开(公告)日：2023-08-29

申请号：US18077995

申请日：2022-12-08

申请人： Kumu Networks, Inc.

发明人： Jung-Il Choi ,  Mayank Jain

IPC分类号： H04B7/0413 ,  H04B17/12

CPC分类号： H04B7/0413 ,  H04B17/12

摘要： 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：US20230246703A1

公开(公告)日：2023-08-03

申请号：US18123544

申请日：2023-03-20

申请人： Kumu Networks, Inc.

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

IPC分类号： H04B7/155 ,  H04B1/525

CPC分类号： H04B7/15585 ,  H04B1/525 ,  H04B7/0413

摘要： 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：US20230051798A1

公开(公告)日：2023-02-16

申请号：US17972414

申请日：2022-10-24

申请人： Kumu Networks, Inc.

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

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

摘要： 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：US20220394642A1

公开(公告)日：2022-12-08

申请号：US17890095

申请日：2022-08-17

申请人： Kumu Networks, Inc.

发明人： Mayank Jain ,  Jung-Il Choi ,  Tanvi Jadhav

IPC分类号： H04W56/00 ,  H04W72/04 ,  H04W72/12 ,  H04L5/14

摘要： A repeater system, preferably including one or more radio transceivers, such as a 5G NR transceiver configured to communicate with other elements of a 5G NR communication network such as user equipment and/or gNBs, and a signal processor. A method for repeater operation, preferably including determining synchronization information, operating in a synchronized repeater mode, and maintaining synchronization (such as by monitoring periodic signal timing and adjusting operation timing based on the monitoring), and optionally including operating in a fallback repeater mode.

公开(公告)号：US11469828B2

公开(公告)日：2022-10-11

申请号：US17153010

申请日：2021-01-20

申请人： Kumu Networks, Inc.

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

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

摘要： 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：US11128329B2

公开(公告)日：2021-09-21

申请号：US17005683

申请日：2020-08-28

申请人： Kumu Networks, Inc.

发明人： Wilhelm Steffen Hahn ,  Alfred Riddle ,  Ernie Landi ,  Dai Sieh ,  Jung-Il Choi ,  Mayank Jain

IPC分类号： H04B1/10 ,  H04L5/14 ,  H04B1/40

摘要： 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.

公开(公告)号：US20200259555A1

公开(公告)日：2020-08-13

申请号：US16859625

申请日：2020-04-27

申请人： Kumu Networks, Inc.

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

IPC分类号： H04B7/155 ,  H04B1/525

摘要： 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：US20200177217A1

公开(公告)日：2020-06-04

申请号：US16786066

申请日：2020-02-10

申请人： Kumu Networks, Inc.

发明人： Jung-Il Choi ,  Mayank Jain ,  Christian Hahn

IPC分类号： H04B1/04 ,  H04B1/10

摘要： 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.