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公开(公告)号：US20210006286A1
公开(公告)日：2021-01-07
申请号：US17024427
申请日：2020-09-17
Applicant: Kumu Networks, Inc.
Inventor： Rajendra Tushar Moorti , Kumar Viswanatha
Abstract: 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.
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公开(公告)号：US10200217B2
公开(公告)日：2019-02-05
申请号：US15648332
申请日：2017-07-12
Applicant: Kumu Networks, Inc.
Inventor： Rajendra Tushar Moorti , Jung-Il Choi , Mayank Jain
IPC: H04L25/03 , H04L27/26 , H04L12/801 , H04L25/02
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.
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公开(公告)号：US20170310508A1
公开(公告)日：2017-10-26
申请号：US15648332
申请日：2017-07-12
Applicant: Kumu Networks, Inc.
Inventor： Rajendra Tushar Moorti , Jung-Il Choi , Mayank Jain
IPC: H04L25/03 , H04L12/801 , H04L27/26
CPC classification number: H04L25/03006 , 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.
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公开(公告)号：US20230111317A1
公开(公告)日：2023-04-13
申请号：US18080874
申请日：2022-12-14
Applicant: Kumu Networks, Inc.
Inventor： Sundeep Venkatraman , Rajendra Tushar Moorti
Abstract: An efficiently-transformed digital self-interference canceller, preferably including an FD transformer, a TD transformer, a channel estimator, a composer, and a controller. The canceller can optionally include a channel memory, a predictor, and/or an extender. A method for digital self-interference cancelation, preferably including receiving inputs, transforming the inputs, generating outputs based on the transformed inputs, transforming the outputs, and/or generating a cancellation signal based on the outputs.
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公开(公告)号：US20210075583A1
公开(公告)日：2021-03-11
申请号：US17087208
申请日：2020-11-02
Applicant: Kumu Networks, Inc.
Inventor： Sundeep Venkatraman , Rajendra Tushar Moorti
Abstract: An efficiently-transformed digital self-interference canceller, preferably including an FD transformer, a TD transformer, a channel estimator, a composer, and a controller. The canceller can optionally include a channel memory, a predictor, and/or an extender. A method for digital self-interference cancelation, preferably including receiving inputs, transforming the inputs, generating outputs based on the transformed inputs, transforming the outputs, and/or generating a cancellation signal based on the outputs.
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Patent Agency Ranking
公开(公告)号：US10382089B2
公开(公告)日：2019-08-13
申请号：US16125269
申请日：2018-09-07
Applicant: Kumu Networks, Inc.
Inventor： Rajendra Tushar Moorti , Kumar Viswanatha
Abstract: 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; and a channel memory that stores the past self-interference channel estimates.
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公开(公告)号：US20190007089A1
公开(公告)日：2019-01-03
申请号：US16125269
申请日：2018-09-07
Applicant: Kumu Networks, Inc.
Inventor： Rajendra Tushar Moorti , Kumar Viswanatha
CPC classification number: H04B1/56 , H04B1/12 , H04B1/123 , H04B1/525 , H04L5/14 , H04L25/0202 , H04L27/2628 , H04L27/2647
Abstract: 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; and a channel memory that stores the past self-interference channel estimates.
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公开(公告)号：US09742593B2
公开(公告)日：2017-08-22
申请号：US15362289
申请日：2016-11-28
Applicant: Kumu Networks, Inc.
Inventor： Rajendra Tushar Moorti , Jung-Il Choi , Mayank Jain
IPC: H04L25/03 , H04L27/26 , H04L12/801
CPC classification number: H04L25/03006 , H04L25/0204 , H04L25/0328 , H04L27/265 , H04L47/29
Abstract: A method for adaptively-tuned digital self-interference cancellation comprises receiving a digital transmit signal; receiving a transform configuration; generating a set of signal components from the digital transmit signal; transforming the set of signal components into a digital self-interference cancellation signal according to the transform configuration; combining the digital self-interference cancellation signal with a receive signal to form a digital residue signal; detecting a trigger; in response to detecting the trigger: computing a ratio of the digital residue signal to the digital transmit signal; converting the ratio to the frequency-domain to form a frequency-domain-converted ratio; computing a frequency-domain self-interference channel between the transmitter and the receiver based on the frequency-domain-converted ratio; computing an inverse discrete Fourier transform matrix based on a portion of the discrete Fourier transform matrix; converting the frequency-domain self-interference channel to form a time-domain self-interference channel; and updating the transform configuration based on the time-domain self-interference channel.
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公开(公告)号：US20170180160A1
公开(公告)日：2017-06-22
申请号：US15362289
申请日：2016-11-28
Applicant: Kumu Networks, Inc.
Inventor： Rajendra Tushar Moorti , Jung-Il Choi , Mayank Jain
IPC: H04L25/03 , H04L12/801 , H04L27/26
CPC classification number: H04L25/03006 , H04L25/0204 , H04L25/0328 , H04L27/265 , H04L47/29
Abstract: A method for adaptively-tuned digital self-interference cancellation comprises receiving a digital transmit signal; receiving a transform configuration; generating a set of signal components from the digital transmit signal; transforming the set of signal components into a digital self-interference cancellation signal according to the transform configuration; combining the digital self-interference cancellation signal with a receive signal to form a digital residue signal; detecting a trigger; in response to detecting the trigger: computing a ratio of the digital residue signal to the digital transmit signal; converting the ratio to the frequency-domain to form a frequency-domain-converted ratio; computing a frequency-domain self-interference channel between the transmitter and the receiver based on the frequency-domain-converted ratio; computing an inverse discrete Fourier transform matrix based on a portion of the discrete Fourier transform matrix; converting the frequency-domain self-interference channel to form a time-domain self-interference channel; and updating the transform configuration based on the time-domain self-interference channel.
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20.发明申请公开(公告)号：US20150341125A1
公开(公告)日：2015-11-26
申请号：US14722087
申请日：2015-05-26
Applicant: Kumu Networks, Inc.
Inventor： Dinesh Bharadia , Jung-Il Choi , Mayank Jain , Rajendra Tushar Moorti
CPC classification number: H04B1/62 , H04B1/00 , H04B1/123 , H04B1/38 , H04B1/48 , H04B1/525 , H04B15/00 , H04B2001/485 , H04L5/14 , H04L27/32
Abstract: A system for multi-rate digital self-interference cancellation including a signal component generation system coupled to a digital transmit signal of a communication system that generates a set of signal components from the digital transmit signal; a multi-rate adaptive filter that transforms the set of signal components into a digital self-interference cancellation signal, according to a transform configuration, to form an interference-reduced receive signal; and a transform adaptor that dynamically sets the transform configuration in response to changes in the interference-reduced receive signal.
Abstract translation: 一种用于多速率数字自干扰消除的系统，包括耦合到通信系统的数字发射信号的信号分量产生系统，其从数字发射信号产生一组信号分量; 多速率自适应滤波器，其根据变换配置将所述信号分量集合变换为数字自干扰消除信号，以形成干扰减小的接收信号; 以及变换适配器，其响应于减少干扰的接收信号的变化而动态地设置变换配置。
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