公开(公告)号：US20250007600A1

公开(公告)日：2025-01-02

申请号：US18344191

申请日：2023-06-29

Applicant: Intel Corporation

Inventor： Yang-Seok Choi ,  Sagar Dhakal ,  Husam Elfadil ,  Thushara Hewavithana ,  Xiaofeng Li ,  Peng Lu ,  Tariq Qureshi ,  Jan Schreck

IPC: H04B7/08 ,  H04B7/0426 ,  H04B7/06

Abstract: Techniques are disclosed to address issues related to the computation of channel state information (CSI) and angular spectrum (AS) to perform beamforming. The CSI and AS, as well as various statistical channel parameters of a wireless channel, may be computed using different techniques, which include the use of domain knowledge enhanced neural networks (DKE-NNs). The CSI and AS may be further utilized to perform beamforming using various techniques. One of these techniques may include the implementation of eigen beamforming, which provides artificially generated power at locations within the AS that are identified with estimated eigenvector beam locations. As a result of the artificially-generated power, the resulting vector decomposition used to provide the beamforming weights results in widened eigenvector beams.

公开(公告)号：US20240418825A1

公开(公告)日：2024-12-19

申请号：US18664048

申请日：2024-05-14

Applicant: INTEL CORPORATION

Inventor： Ofer Markish ,  Ophir Shabtay ,  Thushara Hewavithana ,  Arnaud Amadjikpe ,  Shengbo Xu

IPC: G01S7/35 ,  B60W60/00 ,  G01S13/89 ,  H01Q1/32 ,  H01Q21/22

Abstract: Some demonstrative aspects include radar apparatuses, devices, systems and methods. In one example, an apparatus may include a plurality of Transmit (Tx) antennas to transmit radar Tx signals, and a plurality of Receive (Rx) antennas to receive radar Rx signals. For example, the radar Rx signals may be based on the radar Tx signals. The apparatus may be implemented, for example, as part of a radar device, for example, as part of a vehicle including the radar device. In other aspects, the apparatus may include any other additional or alternative elements and/or may be implemented as part of any other device.

公开(公告)号：US20240014976A1

公开(公告)日：2024-01-11

申请号：US18472027

申请日：2023-09-21

Applicant: Intel Corporation

Inventor： Fatemeh Hamidi-Sepehr ,  Thushara Hewavithana ,  Mark Lehne ,  Qian Li

IPC: H04L5/00

CPC classification number: H04L5/0051 ,  H04L5/0007

Abstract: Various embodiments herein provide techniques related to a process to be performed by an electronic device. The electronic device may: identify a plurality of downlink positioning reference signal (DL-PRS) symbols related to sensing to be performed during a sensing operation; identify a plurality of orthogonal frequency division multiplexed (OFDM) symbols related to data; generate a cellular transmission that includes a symbol repetition interval (SRI) composed of the plurality of DL-PRS symbols and the plurality of OFDM symbols; and transmit the cellular transmission. Other embodiments may be described and/or claimed.

公开(公告)号：US11463126B2

公开(公告)日：2022-10-04

申请号：US16833818

申请日：2020-03-30

Applicant: Intel Corporation

Inventor： Bernard Arambepola ,  Thushara Hewavithana ,  Noam Tal ,  Shaul Shulman

IPC: H04B3/46 ,  H04B3/32 ,  H04B3/487 ,  H04N21/61 ,  H04L12/28 ,  H04L43/50 ,  H04B17/345 ,  H04L5/00

Abstract: A cable modem system for discovering interference groups (IGs) includes an infrastructure and a cable modem termination system (CMTS). The infrastructure is for transferring data. The CMTS is configured to initiate generation of test signals by a set of cable modems (CMs), obtain a set of test measurements for the set of CMs, discover interference groups (IGs) of the set of CMs based on the obtained set of test measurements and assign a plurality of upstream and downstream channels for the set of CMs that use orthogonal frequency division multiplexing (OFDM) based on the discovered IGs.

公开(公告)号：US10742264B2

公开(公告)日：2020-08-11

申请号：US15475448

申请日：2017-03-31

Applicant: Intel Corporation

Inventor： Bernard Arambepola ,  Thushara Hewavithana ,  Noam Tal ,  Shaul Shulman

IPC: H04B3/46 ,  H04B3/32 ,  H04B3/487 ,  H04N21/61 ,  H04L12/28 ,  H04L12/26 ,  H04B17/345 ,  H04L5/00

Abstract: A cable modem system for discovering interference groups (IGs) includes an infrastructure and a cable modem termination system (CMTS). The infrastructure is for transferring data. The CMTS is configured to initiate generation of test signals by a set of cable modems (CMs), obtain a set of test measurements for the set of CMs, discover interference groups (IGs) of the set of CMs based on the obtained set of test measurements and assign a plurality of upstream and downstream channels for the set of CMs that use orthogonal frequency division multiplexing (OFDM) based on the discovered IGs.

公开(公告)号：US10652055B2

公开(公告)日：2020-05-12

申请号：US16312686

申请日：2017-06-14

Applicant: Intel Corporation

Inventor： Bernard Arambepola ,  Thushara Hewavithana

IPC: H04L25/08 ,  H04B1/10 ,  H04L5/00 ,  H04L7/00 ,  H04L5/14 ,  H04L25/02 ,  H04L25/03

Abstract: Symbols are received on a downstream channel. A value of a channel synchronization parameter is determined based on the received symbols. An interference event on the downstream channel is detected. In response to detecting the interference event: an output signal is determined based on at least one cached value of the channel synchronization parameter, the at least one cached value being determined based on symbols received prior to and offset from the detecting of the interference event.

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：US10341046B2

公开(公告)日：2019-07-02

申请号：US15479878

申请日：2017-04-05

Applicant: Intel Corporation

Inventor： Bernard Arambepola ,  Noam Tal ,  Sahan S. Gamage ,  Thushara Hewavithana ,  Shaul Shulman

IPC: H04W4/00 ,  H04L1/00 ,  H04L5/00 ,  H04L27/00 ,  H04L27/26

Abstract: Mixed mode constellation mapping to map a data block to a block of sub-carriers based on a configurable set of one or more constellation mapping schemes, and corresponding mixed mode least likelihood ratio (LLR) de-mapping based on the configurable set of one or more modulation schemes. The set may be configurable to include multiple modulation schemes to provide to a SEvSNR measure that is a non-weighted or weighted average of SEvSNR measures of the multiple modulation schemes. Mixed mode constellation mapping may be useful be configurable to control spectral efficiency versus SNR (SEvSNR) over a range of SNR with relatively fine SNR granularity, and may be configurable to control SEvSNR over a range of SNR at a fixed FEC code rate, which may include a highest available or highest permitted code rate.

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.