公开(公告)号：US11128330B2

公开(公告)日：2021-09-21

申请号：US16992702

申请日：2020-08-13

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hamed Maleki ,  Elina Nayebi ,  Pranav Dayal ,  Kee-Bong Song

IPC: H04B1/40 ,  H04B1/10 ,  H04L25/03 ,  H04B1/12 ,  H04B1/525 ,  H04B1/56 ,  H04L5/00 ,  H04L5/14 ,  H04L25/02

Abstract: A method for providing nonlinear self-interference cancellation of a wireless communication device includes: receiving digital samples of an interfering signal having a first sampling rate and a corrupted victim signal having a second sampling rate; generating a kernel vector based on the interfering signal, wherein the kernel vector has terms of nonlinear self-interference; estimating the nonlinear self-interference of the corrupted victim signal using the terms of the nonlinear self-interference; and providing an estimation of a desired signal by cancelling the nonlinear self-interference from the corrupted victim signal.

公开(公告)号：US10382244B2

公开(公告)日：2019-08-13

申请号：US15586792

申请日：2017-05-04

Applicant: Samsung Electronics Co., Ltd.

Inventor： Amir Dezfooliyan ,  Vignesh Sethuraman ,  Hamed Maleki ,  Linbo Li ,  Kee-Bong Song

IPC: H04L27/26

Abstract: A method and apparatus are provided. The method includes receiving a reference signal from a transceiver, estimating a time offset (TO) of the reference signal in the frequency domain based on an accumulation of subcarriers before cross-correlation, providing a TO compensated signal of the reference signal based on the estimated TO in the frequency domain, transforming the TO compensated signal into the time domain, and estimating a frequency offset (FO) based on the time domain TO compensated signal.

公开(公告)号：US10805125B2

公开(公告)日：2020-10-13

申请号：US16591033

申请日：2019-10-02

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hamed Maleki ,  Pranav Dayal ,  Kee-Bong Song

IPC: H03D1/04 ,  H04L25/03 ,  H04L27/26

Abstract: An apparatus and a method are provided in which a processor of a receiving apparatus regenerates time domain samples of an interfering data numerology from frequency domain received signals. The processor performs FFT, with a size corresponding to a desired data numerology, on the regenerated time domain samples to generate an interfering numerology cancellation signal. The processor subtracts the interfering numerology cancellation signal from a frequency domain received signal of the desired data numerology.

公开(公告)号：US10341066B2

公开(公告)日：2019-07-02

申请号：US15880419

申请日：2018-01-25

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hamed Maleki ,  Pranav Dayal ,  Kee-Bong Song

IPC: H04L5/00 ,  H04L5/12

Abstract: A system and method for transmitting an orthogonal frequency-division multiplexed signal with a group distributed phase tracking reference signal subcarrier structure, and for estimating, and compensating for, both common phase error, and inter-carrier interference.

公开(公告)号：US20200036562A1

公开(公告)日：2020-01-30

申请号：US16591033

申请日：2019-10-02

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hamed Maleki ,  Pranav Dayal ,  Kee-Bong Song

IPC: H04L25/03 ,  H04L27/26

Abstract: An apparatus and a method are provided in which a processor of a receiving apparatus regenerates time domain samples of an interfering data numerology from frequency domain received signals. The processor performs FFT, with a size corresponding to a desired data numerology, on the regenerated time domain samples to generate an interfering numerology cancellation signal. The processor subtracts the interfering numerology cancellation signal from a frequency domain received signal of the desired data numerology.

公开(公告)号：US10419248B2

公开(公告)日：2019-09-17

申请号：US15436309

申请日：2017-02-17

Applicant: Samsung Electronics Co., Ltd.

Inventor： Amir Dezfooliyan ,  Vignesh Sethuraman ,  Hyukjoon Kwon ,  Hamed Maleki ,  Linbo Li ,  Kee-Bong Song

IPC: H04L5/00 ,  H04L25/02 ,  H04L25/03 ,  H04L27/26 ,  H04L27/148 ,  H04L27/233

Abstract: Methods and apparatuses are provided in which a signal is received at a receiver. A processor of the receiver computes frequency offset (FO) inter-carrier interference (ICI) compensation, based on a real matrix part of an approximate ICI matrix and an FO estimated from the received signal. The processor applies the FO ICI compensation to the received signal in a frequency domain to produce an ICI compensated output. The processor applies a phase rotation to the ICI compensated output.

公开(公告)号：US10944520B2

公开(公告)日：2021-03-09

申请号：US16403889

申请日：2019-05-06

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hamed Maleki ,  Pranav Dayal ,  Kee-Bong Song

IPC: H04L5/00 ,  H04L5/12 ,  H04L25/03 ,  H04L27/26 ,  H04L25/02 ,  H04L27/00

Abstract: A system and method for transmitting an orthogonal frequency-division multiplexed signal with a group distributed phase tracking reference signal subcarrier structure, and for estimating, and compensating for, both common phase error, and inter-carrier interference.

公开(公告)号：US20200382148A1

公开(公告)日：2020-12-03

申请号：US16992702

申请日：2020-08-13

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hamed Maleki ,  Elina Nayebi ,  Pranav Dayal ,  Kee-Bong Song

IPC: H04B1/12 ,  H04B1/525 ,  H04B1/56 ,  H04L5/00 ,  H04L5/14 ,  H04L25/02 ,  H04L25/03

Abstract: A method for providing nonlinear self-interference cancellation of a wireless communication device includes: receiving digital samples of an interfering signal having a first sampling rate and a corrupted victim signal having a second sampling rate; generating a kernel vector based on the interfering signal, wherein the kernel vector has terms of nonlinear self-interference; estimating the nonlinear self-interference of the corrupted victim signal using the terms of the nonlinear self-interference; and providing an estimation of a desired signal by cancelling the nonlinear self-interference from the corrupted victim signal.

公开(公告)号：US10461966B2

公开(公告)日：2019-10-29

申请号：US16006403

申请日：2018-06-12

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hamed Maleki ,  Pranav Dayal ,  Kee-Bong Song

IPC: H03D1/04 ,  H04L25/03 ,  H04L27/26

Abstract: An apparatus and a method are provided in which a processor of a receiving apparatus regenerates time domain samples of an interfering data numerology from frequency domain received signals. The processor performs pre-fast Fourier transform (FFT) processing of a desired data numerology on the regenerated time domain samples of the interfering data numerology. The processor performs FFT, with a size corresponding to the desired data numerology, on the regenerated time domain samples after performing pre-FFT processing to generate an interfering numerology cancelation signal. The processor subtracts the interfering numerology cancelation signal from a frequency domain received signal of the desired data numerology to reduce an effect of interference of the interfering data numerology on the desired data numerology.

公开(公告)号：US20190044673A1

公开(公告)日：2019-02-07

申请号：US15880419

申请日：2018-01-25

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hamed Maleki ,  Pranav Dayal ,  Kee-Bong Song

IPC: H04L5/00 ,  H04L5/12

CPC classification number: H04L5/0007 ,  H04L5/005 ,  H04L5/0051 ,  H04L5/12 ,  H04L25/0202 ,  H04L25/03821 ,  H04L27/266 ,  H04L2027/0067

Abstract: A system and method for transmitting an orthogonal frequency-division multiplexed signal with a group distributed phase tracking reference signal subcarrier structure, and for estimating, and compensating for, both common phase error, and inter-carrier interference.