公开(公告)号：US20190312761A1

公开(公告)日：2019-10-10

申请号：US16464485

申请日：2016-12-29

Applicant: Intel Corporation

Inventor： Shaul Shulman ,  Nathan Goichberg

IPC: H04L27/00 ,  H04L27/26

Abstract: A device includes a digital frontend. The digital frontend is configured to digitally modulate symbols for digital signals of a plurality of channels according to a transmission protocol. Each channel is associated with at least one respective carrier frequency within a transmission bandwidth. The digital frontend is further configured to combine the digital signals to obtain a digital output signal. The device further includes an analog frontend having a digital-to-analog converter configured to convert the digital output signal into an analog output signal. The analog frontend also includes a programmable gain amplifier configured to apply an analog gain to the analog output signal. The device further includes a control logic configured to determine the analog gain based on calibration data indicative of the frequency response of the analog frontend across a transmission bandwidth.

公开(公告)号：US10243681B2

公开(公告)日：2019-03-26

申请号：US15717285

申请日：2017-09-27

Applicant: Intel Corporation

Inventor： Nathan Goichberg ,  Shaul Shulman ,  Thushara Hewavithana

IPC: H04B1/10 ,  H04J3/06 ,  H04L5/14 ,  H04L25/03

Abstract: Synchronizing methods and architectures for cable modems to transmit and receive Full Duplex (FDX) resource block allocations (RBAs) using filter switching and coordinated updating of equalization coefficients. A cable modem including a block of switchable filters, an analog front end (AFE) and a PHY/MAC System on a Chip (SoC) tuner to, at least in part, provide signals to switch the switchable filters in accordance with the RBA changes and synchronize updating tuner equalizations to match filter switching in a coordinated manner by marking received data at the AFE.

公开(公告)号：US11012269B2

公开(公告)日：2021-05-18

申请号：US16464485

申请日：2016-12-29

Applicant: Intel Corporation

Inventor： Shaul Shulman ,  Nathan Goichberg

IPC: H04L27/00 ,  H04L27/26 ,  H03G3/30 ,  H04B1/04 ,  H04L5/06

Abstract: A device includes a digital frontend. The digital frontend is configured to digitally modulate symbols for digital signals of a plurality of channels according to a transmission protocol. Each channel is associated with at least one respective carrier frequency within a transmission bandwidth. The digital frontend is further configured to combine the digital signals to obtain a digital output signal. The device further includes an analog frontend having a digital-to-analog converter configured to convert the digital output signal into an analog output signal. The analog frontend also includes a programmable gain amplifier configured to apply an analog gain to the analog output signal. The device further includes a control logic configured to determine the analog gain based on calibration data indicative of the frequency response of the analog frontend across a transmission bandwidth.

公开(公告)号：US20200021380A1

公开(公告)日：2020-01-16

申请号：US16274645

申请日：2019-02-13

Applicant: Intel Corporation

Inventor： Nathan Goichberg ,  Shaul Shulman ,  Thushara Hewavithana

IPC: H04J3/06 ,  H04L25/03 ,  H04L5/14

Abstract: Synchronizing methods and architectures for cable modems to transmit and receive Full Duplex (FDX) resource block allocations (RBAs) using filter switching and coordinated updating of equalization coefficients. A cable modem including a block of switchable filters, an analog front end (AFE) and a PHY/MAC System on a Chip (SoC) tuner to, at least in part, provide signals to switch the switchable filters in accordance with the RBA changes and synchronize updating tuner equalizations to match filter switching in a coordinated manner by marking received data at the AFE.

公开(公告)号：US20190058540A1

公开(公告)日：2019-02-21

申请号：US15717285

申请日：2017-09-27

Applicant: Intel Corporation

Inventor： Nathan Goichberg ,  Shaul Shulman ,  Thushara Hewavithana

IPC: H04J3/06 ,  H04L5/14 ,  H04L25/03

Abstract: Synchronizing methods and architectures for cable modems to transmit and receive Full Duplex (FDX) resource block allocations (RBAs) using filter switching and coordinated updating of equalization coefficients. A cable modem including a block of switchable filters, an analog front end (AFE) and a PHY/MAC System on a Chip (SoC) tuner to, at least in part, provide signals to switch the switchable filters in accordance with the RBA changes and synchronize updating tuner equalizations to match filter switching in a coordinated manner by marking received data at the AFE.

公开(公告)号：US20190044555A1

公开(公告)日：2019-02-07

申请号：US15978213

申请日：2018-05-14

Applicant: Intel Corporation

Inventor： Thushara Hewavithana ,  Shaul Shulman ,  Noam Tal ,  Boaz Kol ,  Nathan Goichberg ,  David Barr

IPC: H04B1/04 ,  H04B3/20 ,  H04L27/26 ,  H04L5/14

Abstract: A method and apparatus for cancelling self-interference in a cable network implementing full duplex (FDX). A processor in a cable modem may obtain a frequency response of an echo channel for at least one sub-channel in an FDX band and calculate filter coefficients based on the frequency response, and an interference canceller cancels the self-interference in the downstream signal. The interference canceller includes filters in a digital domain to generate an interference cancellation signal from a reference signal. In another example, the processor may obtain frequency responses of an echo channel for all sub-channels in a FDX band, combine the frequency responses for the FDX band, and generate a channel impulse response for the FDX band from the combined frequency response. The interference canceller may then cancel the self-interference in the downstream signal in an analog domain based on the channel impulse response.

公开(公告)号：US20190007094A1

公开(公告)日：2019-01-03

申请号：US15719696

申请日：2017-09-29

Applicant: Intel Corporation

Inventor： Nathan Goichberg ,  Shaul Shulman

IPC: H04B3/06 ,  H04B1/38

Abstract: A cable modem transceiver includes a processor configured to derive an instant of time for an upstream calibration signal on basis of upstream scheduling information. Further, the cable modem transceiver includes a transmitter configured to generate the upstream calibration signal at the derived instant of time. The cable modem transceiver additionally includes a detector configured to determine a property of the generated upstream calibration signal. The processor is further configured to derive at least one calibration parameter for the transmitter on basis of the detected property.

公开(公告)号：US11838070B2

公开(公告)日：2023-12-05

申请号：US17905264

申请日：2020-03-30

Applicant: Intel Corporation

Inventor： Thushara Hewavithana ,  Nathan Goichberg

IPC: H04B3/38

CPC classification number: H04B3/38

Abstract: Examples relate to an amplification apparatus, device or method, to a Tap for a cable communication network comprising an amplification apparatus or device, and to a cable communication network comprising an amplification apparatus or device. The amplification apparatus comprises interface circuitry for exchanging a first version of a shared signal with a first component of the cable communication network. The shared signal is based on a frequency spectrum comprising at least a first frequency band and a second frequency band. The amplification apparatus comprises interface circuitry for exchanging a second version of the shared signal with a second component of the cable communication network. The amplification apparatus comprises amplifier circuitry configured to selectively amplify the first frequency band of the frequency spectrum of the shared signal, such that the first frequency band is amplified in the second version of the shared signal.

公开(公告)号：US11683064B2

公开(公告)日：2023-06-20

申请号：US17650860

申请日：2022-02-14

Applicant: Intel Corporation

Inventor： Nathan Goichberg

IPC: H04B1/40 ,  H04B17/318

CPC classification number: H04B1/40 ,  H04B17/318

Abstract: Examples relate to a cable modem, to an apparatus, device and method for a cable modem, and to an apparatus, device and method for a cable communication system. The apparatus or device for the cable modem comprises interface circuitry/communication means for communicating with transceiver circuitry/transceiving means of the cable modem, and processing circuitry/processing means. The processing circuitry/means is configured to determine information on a power level of received transmissions at a plurality of points in time in a plurality of frequency bands of an upstream spectrum via the transceiver circuitry, to determine, for each of the plurality of frequency bands, numeric information on an occurrence of one or more power levels of the received transmissions in the respective frequency band, and aggregate the numeric information on the occurrence of the one or more power levels of the received transmissions by frequency band.

公开(公告)号：US11251826B2

公开(公告)日：2022-02-15

申请号：US17124612

申请日：2020-12-17

Applicant: Intel Corporation

Inventor： Nathan Goichberg

IPC: H04B1/40 ,  H04B17/318

Abstract: Examples relate to a cable modem, to an apparatus, device and method for a cable modem, and to an apparatus, device and method for a cable communication system. The apparatus or device for the cable modem comprises interface circuitry/communication means for communicating with transceiver circuitry/transceiving means of the cable modem, and processing circuitry/processing means. The processing circuitry/means is configured to determine information on a power level of received transmissions at a plurality of points in time in a plurality of frequency bands of an upstream spectrum via the transceiver circuitry, to determine, for each of the plurality of frequency bands, numeric information on an occurrence of one or more power levels of the received transmissions in the respective frequency band, and aggregate the numeric information on the occurrence of the one or more power levels of the received transmissions by frequency band.