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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
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.
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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.
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公开(公告)号：US11792056B2
公开(公告)日：2023-10-17
申请号：US17453917
申请日：2021-11-08
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Jinyong Lee , Hyeonjun Kim , Hyunbae Jeon , Sungsoo Kim
CPC classification number: H04L27/0014 , H04L27/266 , H04L27/2675 , H04L2027/0042
Abstract: The present disclosure includes a method of performing synchronization and frequency offset estimation The method includes an input signal corresponding to a single received training sequence. Phase information and a phase index are generated by performing an auto-correlation function (ACF) on the input signal. A templet signal associated with a sample index of the input signal is generated based on at least one pre-stored look-up table (LUT), the phase index, a frequency bandwidth of the input signal, and the sample index. Power associated with the sample index is calculated by performing a matched filtering on the input signal based on the templet signal. A synchronization timing and a frequency offset for the input signal are simultaneously determined based on a result of the matched filtering.
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公开(公告)号：US20220200828A1
公开(公告)日：2022-06-23
申请号：US17453917
申请日：2021-11-08
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Jinyong Lee , Hyeonjun Kim , Hyunbae Jeon , Sungsoo Kim
Abstract: The present disclosure includes a method of performing synchronization and frequency offset estimation The method includes an input signal corresponding to a single received training sequence. Phase information and a phase index are generated by performing an auto-correlation function (ACF) on the input signal. A templet signal associated with a sample index of the input signal is generated based on at least one pre-stored look-up table (LUT), the phase index, a frequency bandwidth of the input signal, and the sample index. Power associated with the sample index is calculated by performing a matched filtering on the input signal based on the templet signal. A synchronization timing and a frequency offset for the input signal are simultaneously determined based on a result of the matched filtering.
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