公开(公告)号：US20250016754A1

公开(公告)日：2025-01-09

申请号：US18753199

申请日：2024-06-25

Applicant: Samsung Electronics Co., Ltd.

Inventor： Youngwook Son ,  Hyeonjun Kim ,  Jung Woon Lee ,  Hyunbae Jeon

IPC: H04W72/0453

Abstract: An operating method of a receiver includes detecting a signal received from a transmitter at a plurality of sub-bands constituting the frequency band, determining first frequency offsets for the signal at reception sub-bands at which the signal has been detected among the plurality of sub-bands, and determining second frequency offsets by calibrating carrier frequency offsets based on a distance of each of the reception sub-bands from a center frequency of the frequency band.

公开(公告)号：US11907629B2

公开(公告)日：2024-02-20

申请号：US17552819

申请日：2021-12-16

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Soonwoo Choi ,  Jung Woon Lee ,  Junyoung Jeong

IPC: G06F30/33 ,  G06F30/323 ,  G06F30/333

CPC classification number: G06F30/33 ,  G06F30/323 ,  G06F30/333

Abstract: A computing system configured to verify design of an integrated circuit (IC) includes a memory and a processor. The memory is configured to store computer executable instructions. The processor is configured to generate a first coverage model for at least two high-level parameters from the Institute of Electrical and Electronics Engineers (IEEE) 802.11 standard or hardware description language (HDL) code by executing the computer executable instructions, generate a second coverage model for low-level internal signals from the HDL code by executing the computer executable instructions, and generate a plurality of test packets for a regression test by using at least one of the first coverage model or the second coverage model by executing the computer executable instructions.

公开(公告)号：US20240214175A1

公开(公告)日：2024-06-27

申请号：US18543379

申请日：2023-12-18

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Minki Ahn ,  Jung Woon Lee

IPC: H04L5/00 ,  H04B1/30 ,  H04B17/336

CPC classification number: H04L5/0098 ,  H04B1/30 ,  H04B17/336 ,  H04B2001/305

Abstract: A first wireless communication apparatus includes a transceiver including a direct current (DC) component filter configured to remove a DC component of a first data signal received from a second wireless communication apparatus via a channel and output a corresponding second data signal, and a measurement circuit configured to determine a target subcarrier set based on a carrier frequency offset with respect to the second data signal, and measure noise and a signal-to-noise ratio (SNR) of the second data signal using the target subcarrier set.

公开(公告)号：US20250031164A1

公开(公告)日：2025-01-23

申请号：US18773964

申请日：2024-07-16

Applicant: Samsung Electronics Co., Ltd.

Inventor： Eunhye Park ,  Jinmin Kim ,  Jung Woon Lee

IPC: H04W56/00 ,  H04L25/02

Abstract: An operation method of a wireless communication device includes receiving a first signal including a first reference signal group, calculating a first residual frequency offset based on the first signal, receiving a second signal that is subsequent to the first signal and includes a second reference signal group, compensating a phase of the second signal based on the first residual frequency offset, estimating a first channel based on first channel characteristics, the first reference signal group, and the first signal, estimating a second channel based on second channel characteristics, the second reference signal group, and the second signal of which the phase is compensated, and calculating a second residual frequency offset based on the first channel estimation and the second channel estimation.

公开(公告)号：US20240214017A1

公开(公告)日：2024-06-27

申请号：US18397760

申请日：2023-12-27

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Minki AHN ,  Sungsoo Kim ,  Jung Woon Lee

IPC: H04B1/12 ,  H04B1/00 ,  H04B1/16

CPC classification number: H04B1/12 ,  H04B1/0096 ,  H04B1/1607

Abstract: A first wireless communication apparatus includes: a transceiver configured to: receive a radio frequency (RF) signal via a channel from a second wireless communication apparatus, and downconvert the RF signal to generate a received signal that has a lower frequency than a frequency of the RF signal; and a processing circuit configured to: compare the received signal with a reference signal to generate a compensation index based on a comparison result, and compensate an initial first arrival path (FAP) time index of the received signal based on the compensation index to generate a final FAP time index.

公开(公告)号：US20230164015A1

公开(公告)日：2023-05-25

申请号：US18057423

申请日：2022-11-21

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jinmin Kim ,  Hyeonjun Kim ,  Hyunbae Jeon ,  Jung Woon Lee

IPC: H04L27/26 ,  H04W56/00

CPC classification number: H04L27/2657 ,  H04W56/0035

Abstract: A method includes calculating first correlation values corresponding to a first symbol duration based on input samples, the input samples being generated from a received signal; calculating phase differences respectively corresponding to the input samples based on the first correlation values and second correlation values corresponding to a second symbol duration preceding the first symbol duration; updating accumulative phase differences respectively corresponding to the input samples based on the phase differences; and detecting a symbol boundary based on the updated accumulative phase differences.