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：US10412698B2

公开(公告)日：2019-09-10

申请号：US15599294

申请日：2017-05-18

Applicant: Samsung Electronics Co., Ltd.

Inventor： Tiangao Gou ,  Pranav Dayal ,  Niranjan Ratnakar ,  Gennady Feygin ,  Jungwon Lee

IPC: H04W56/00

Abstract: A method for providing IQ mismatch (IQMM) compensation includes: sending a single tone signal at an original frequency; determining a first response of an impaired signal at the original frequency and a second response of the impaired signal at a corresponding image frequency; determining an estimate of a frequency response of the compensation filter at the original frequency based on the first response and the second response; repeating the steps of sending the single tone signal, determining the first response and the second response, and determining the estimate of the frequency response of the compensation filter by sweeping the single tone signal at a plurality of steps to determine a snapshot of the frequency response of the compensation filter; converting the frequency response of the compensation filter to a plurality of time-domain filter taps of the compensation filter by performing a pseudo-inverse of a time-to-frequency conversion matrix; and determining a time delay that provides a minimal LSE for the corresponding time domain filter taps.

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.

公开(公告)号：US20180242269A1

公开(公告)日：2018-08-23

申请号：US15599294

申请日：2017-05-18

Applicant: Samsung Electronics Co., Ltd.

Inventor： Tiangao Gou ,  Pranav Dayal ,  Niranjan Ratnakar ,  Gennady Feygin ,  Jungwon Lee

IPC: H04W56/00

CPC classification number: H04W56/004 ,  H03D3/009 ,  H03D2200/0045 ,  H04L27/364

Abstract: A method for providing IQ mismatch (IQMM) compensation includes: sending a single tone signal at an original frequency; determining a first response of an impaired signal at the original frequency and a second response of the impaired signal at a corresponding image frequency; determining an estimate of a frequency response of the compensation filter at the original frequency based on the first response and the second response; repeating the steps of sending the single tone signal, determining the first response and the second response, and determining the estimate of the frequency response of the compensation filter by sweeping the single tone signal at a plurality of steps to determine a snapshot of the frequency response of the compensation filter; converting the frequency response of the compensation filter to a plurality of time-domain filter taps of the compensation filter by performing a pseudo-inverse of a time-to-frequency conversion matrix; and determining a time delay that provides a minimal LSE for the corresponding time domain taps.