公开(公告)号：US20190268186A1

公开(公告)日：2019-08-29

申请号：US16006403

申请日：2018-06-12

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hamed MALEKI ,  Pranav DAYAL ,  Kee-Bong SONG

IPC: 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：US20210360537A1

公开(公告)日：2021-11-18

申请号：US16936418

申请日：2020-07-22

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hamed MALEKI ,  Gennady FEYGIN ,  Pranav DAYAL ,  Kee-Bong SONG

IPC: H04W52/20 ,  H04L27/26 ,  H04L5/00 ,  H04W52/12 ,  H04L1/00 ,  H04W72/04

Abstract: According to one general aspect, an apparatus may include a pre-transmission circuit configured to encode a data signal for communication. The apparatus may include a peak-to-average-power ratio (PAPR) controlling circuit configured to set a power level for a level-adjusted data signal. In some embodiments, the PAPR circuit may be configured to set the power level by employing a multi-loop, multi-phase technique, wherein an inner loop employs multiple phases to constrain the PAPR and reduce at least one power-related error condition, and wherein an outer loop updates the power level. The apparatus may include a transmitter circuit configured to transmit the level-adjusted data 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.