公开(公告)号：US20180234281A1

公开(公告)日：2018-08-16

申请号：US15586792

申请日：2017-05-04

Applicant: Samsung Electronics Co., Ltd.

Inventor： Amir DEZFOOLIYAN ,  Vignesh SETHURAMAN ,  Hamed MALEKl ,  Linbo LI ,  Kee-Bong SONG

IPC: H04L27/26

CPC classification number: H04L27/2662 ,  H04L27/2657 ,  H04L27/2672 ,  H04L27/2675

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：US20190363922A1

公开(公告)日：2019-11-28

申请号：US16536652

申请日：2019-08-09

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 a spectral phase ramp introduced by the TO, compensating the TO of the reference signal based on the estimated TO in the frequency domain by applying the spectral phase ramp to the received reference signal, and providing a TO compensated signal of the reference signal.

公开(公告)号：US20180167241A1

公开(公告)日：2018-06-14

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

CPC classification number: H04L25/03821 ,  H04L5/0048 ,  H04L25/0256 ,  H04L25/03159 ,  H04L27/148 ,  H04L27/2334 ,  H04L27/265 ,  H04L27/2657 ,  H04L27/2675

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.