公开(公告)号：US20200295912A1

公开(公告)日：2020-09-17

申请号：US16820193

申请日：2020-03-16

Applicant: Kumu Networks, Inc.

Inventor： Sundeep Venkatraman ,  Rajendra Tushar Moorti

IPC: H04L5/14 ,  H04B1/525 ,  H04L27/26 ,  H04L25/03 ,  H04L25/02 ,  G06F17/14

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.

公开(公告)号：US20190312609A1

公开(公告)日：2019-10-10

申请号：US16450092

申请日：2019-06-24

Applicant: Kumu Networks, Inc.

Inventor： Rajendra Tushar Moorti ,  Kumar Viswanatha

IPC: H04B1/56 ,  H04L25/02 ,  H04B1/12 ,  H04B1/525

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.

公开(公告)号：US10103774B1

公开(公告)日：2018-10-16

申请号：US15937605

申请日：2018-03-27

Applicant: Kumu Networks, Inc.

Inventor： Rajendra Tushar Moorti ,  Kumar Viswanatha

IPC: H04B1/56 ,  H04B1/12 ,  H04L25/02 ,  H04L5/14 ,  H04L27/26

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.

公开(公告)号：US11121737B2

公开(公告)日：2021-09-14

申请号：US17024427

申请日：2020-09-17

Applicant: Kumu Networks, Inc.

Inventor： Rajendra Tushar Moorti ,  Kumar Viswanatha

IPC: H04B1/56 ,  H04B1/12 ,  H04L25/02 ,  H04B1/525 ,  H04L5/14 ,  H04L27/26

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.

公开(公告)号：US10547346B2

公开(公告)日：2020-01-28

申请号：US16450092

申请日：2019-06-24

Applicant: Kumu Networks, Inc.

Inventor： Rajendra Tushar Moorti ,  Kumar Viswanatha

IPC: H04B1/56 ,  H04L25/02 ,  H04B1/12 ,  H04B1/525 ,  H04L5/14 ,  H04L27/26

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.

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.

公开(公告)号：US20180278290A1

公开(公告)日：2018-09-27

申请号：US15937605

申请日：2018-03-27

Applicant: Kumu Networks, Inc.

Inventor： Rajendra Tushar Moorti ,  Kumar Viswanatha

IPC: H04B1/56 ,  H04B1/12 ,  H04L25/02

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.

公开(公告)号：US11562045B2

公开(公告)日：2023-01-24

申请号：US17087208

申请日：2020-11-02

Applicant: Kumu Networks, Inc.

Inventor： Sundeep Venkatraman ,  Rajendra Tushar Moorti

IPC: H04L12/28 ,  G06F17/14 ,  H04L5/14 ,  H04B1/525 ,  H04L25/03 ,  H04L25/02 ,  H04L27/26 ,  H04J1/16

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.

公开(公告)号：US10541840B2

公开(公告)日：2020-01-21

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 ,  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.

公开(公告)号：US09276682B2

公开(公告)日：2016-03-01

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

IPC: H04B15/00 ,  H04L5/14 ,  H04B1/38

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。