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1. 发明授权

US11515906B2 Systems and methods for tunable out-of-band interference mitigation 有权
公开(公告)号：US11515906B2
公开(公告)日：2022-11-29
申请号：US17088438
申请日：2020-11-03
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.

2. 发明授权

US11121737B2 Systems and methods for intelligently-tuned digital self-interference cancellation 有权
公开(公告)号：US11121737B2
公开(公告)日：2021-09-14
申请号：US17024427
申请日：2020-09-17
申请人： Kumu Networks, Inc.
发明人： Rajendra Tushar Moorti , Kumar Viswanatha
IPC分类号： H04B1/56 , H04B1/12 , H04L25/02 , H04B1/525 , H04L5/14 , H04L27/26
摘要： A system for digital self-interference cancellation includes a filter that generates a reduced-noise digital residue signal; a channel estimator that generates a current self-interference channel estimate from a digital transmit signal, the reduced-noise digital residue signal, and past self-interference channel estimates; a controller that dynamically sets the digital transform configuration in response to changes in a controller-sampled digital residue signal; a predictor that modifies output of the channel estimator to compensate for a first time delay incurred in tuning the system for digital self-interference cancellation; and a channel memory that stores the past self-interference channel estimates.

3. 发明授权

US11082074B2 Systems and methods for linearized-mixer out-of-band interference mitigation 有权
公开(公告)号：US11082074B2
公开(公告)日：2021-08-03
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.

4. 发明申请

US20210143917A1 SYSTEMS AND METHODS FOR ENHANCED-ISOLATION COEXISTING TIME-DIVISION DUPLEXED TRANSCEIVERS 有权
公开(公告)号：US20210143917A1
公开(公告)日：2021-05-13
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.

5. 发明授权

US10965260B1 Systems and methods for split-frequency amplification 有权
公开(公告)号：US10965260B1
公开(公告)日：2021-03-30
申请号：US17011524
申请日：2020-09-03
申请人： Kumu Networks, Inc.
发明人： Wilhelm Steffen Hahn , Ernest Landi
IPC分类号： H03F3/193 , H03B5/12 , H03D7/12
摘要： A system for split-frequency amplification, preferably including: one or more primary-band amplification stages, one or more secondary-band amplification stages, one or more band-splitting filters, and/or one or more signal couplers. An analog canceller including one or more split-frequency amplifiers. A mixer including one or more split-frequency amplifiers. A voltage-controlled oscillator including one or more split-frequency amplifiers. A method for split-frequency amplification, preferably including: receiving an input signal, separating the input signal into signal portions, and/or amplifying the signal portions, and optionally including combining the amplified signal portions and/or providing one or more output signals.

6. 发明授权

US10931383B2 Systems and methods for enhanced-isolation coexisting time-division duplexed transceivers 有权
公开(公告)号：US10931383B2
公开(公告)日：2021-02-23
申请号：US16653057
申请日：2019-10-15
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.

7. 发明授权

US10547346B2 Systems and methods for intelligently-tuned digital self-interference cancellation 有权
公开(公告)号：US10547346B2
公开(公告)日：2020-01-28
申请号：US16450092
申请日：2019-06-24
申请人： Kumu Networks, Inc.
发明人： Rajendra Tushar Moorti , Kumar Viswanatha
IPC分类号： H04B1/56 , H04L25/02 , H04B1/12 , H04B1/525 , H04L5/14 , H04L27/26
摘要： A system for digital self-interference cancellation includes a filter that generates a reduced-noise digital residue signal; a channel estimator that generates a current self-interference channel estimate from a digital transmit signal, the reduced-noise digital residue signal, and past self-interference channel estimates; a controller that dynamically sets the digital transform configuration in response to changes in a controller-sampled digital residue signal; a predictor that modifies output of the channel estimator to compensate for a first time delay incurred in tuning the system for digital self-interference cancellation; and a channel memory that stores the past self-interference channel estimates.

8. 发明授权

US09755692B2 Systems and methods for phase noise mitigation 有权
公开(公告)号：US09755692B2
公开(公告)日：2017-09-05
申请号：US14704746
申请日：2015-05-05
申请人： Kumu Networks, Inc.
发明人： Jung-Il Choi , Mayank Jain , Jeffrey Mehlman , Joseph Shalizi
IPC分类号： H04B1/50 , H04B1/525 , H04B1/48 , H04B7/0413
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.

9. 发明授权

US09712312B2 Systems and methods for near band interference cancellation 有权
公开(公告)号：US09712312B2
公开(公告)日：2017-07-18
申请号：US14670321
申请日：2015-03-26
申请人： Kumu Networks, Inc.
发明人： Jung-Il Choi , Mayank Jain , Dinesh Bharadia , Jeffrey Mehlman , Steven Hong
IPC分类号： H04L5/14 , H04B1/525
CPC分类号： H04L5/14 , H04B1/525
摘要： 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 compo-site receive signal.

10. 发明授权

US09054795B2 Systems and methods for phase noise mitigation 有权
标题翻译：相位噪声抑制系统和方法
公开(公告)号：US09054795B2
公开(公告)日：2015-06-09
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.
摘要翻译：一种用于相位噪声减轻通信的系统，包括将数字发射信号转换为模拟发射信号的主发射机，接收模拟接收信号并将模拟接收信号转换为数字接收信号的主接收机，模拟自干扰消除器对模拟发送信号进行采样，基于模拟发送信号产生模拟自干扰消除信号，并将模拟自干扰消除信号与模拟接收信号组合，并对数字发送信号进行采样的数字自干扰消除器，基于数字发送信号产生数字自干扰消除信号，并将数字自干扰消除信号与数字接收信号组合。

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