公开(公告)号：US20250150307A1

公开(公告)日：2025-05-08

申请号：US18905944

申请日：2024-10-03

Applicant: Samsung Electronics Co., Ltd.

Inventor： Xiaochuan Ma ,  Yan Xin ,  Yong Ren ,  Daoud Burghal ,  Hao Chen ,  Jianzhong Zhang

IPC: H04L25/02

Abstract: An apparatus includes a transceiver configured to receive, over a wireless communication channel, at least one controlled-noise signal. The apparatus also includes a processor, operatively coupled to the transceiver. The processor is configured to train, based on the at least one controlled-noise signal, a noise prediction model for the wireless communication channel, and generate, based on the trained noise prediction model, a noise prediction for the wireless communication channel. The processor is also configured to determine, based on the received at least one controlled-noise signal and the noise prediction, a score function for the wireless communication channel.

公开(公告)号：US20250130327A1

公开(公告)日：2025-04-24

申请号：US18898486

申请日：2024-09-26

Applicant: Samsung Electronics Co., Ltd.

Inventor： Lianjun Li ,  Han Wang ,  Hao Chen ,  Wei Sun ,  Satvir S. Bhatia ,  Andrea M. Small ,  Russell Douglas Ford

IPC: G01S13/56 ,  H04W84/12

Abstract: Methods and systems for user presence detection using wireless technology. A computer-implemented method includes receiving one or more data signals from at least one WiFi-node-to-Access-Point (AP) link or at least one WiFi-node-to-node link, performing a signal pre-processing process on the one or more data signals to generate one or more pre-processed data signals, performing the signal pre-processing process including performing a uniform sampling process, a power normalization process, an anomaly sample removal process, and a filtering process, extracting one or more features using the one or more pre-processed data signals, and using the one or more features to determine whether a user is present in the home and identify a specific room in which the user is located.

公开(公告)号：US20250106592A1

公开(公告)日：2025-03-27

申请号：US18883976

申请日：2024-09-12

Applicant: Samsung Electronics Co., Ltd.

Inventor： Haofan Lu ,  Vishnu Vardhan Ratnam ,  Hao Chen ,  Lianjun Li ,  Pranav Madadi

IPC: H04W4/02 ,  H04B7/06

Abstract: Methods and systems for user velocity tracking using wireless technology. A computer-implemented method includes sending one or more frames to one or more transceivers to initiate a process of frame exchanges, receiving, based on the frame exchanges, channel state information (CSI) having one or more CSI impairments, processing the CSI to adjust the one or more CSI impairments of the CSI to generate a plurality of cleaned CSI metrics, and estimating a velocity of a user using the plurality of cleaned CSI metrics.

公开(公告)号：US20240430828A1

公开(公告)日：2024-12-26

申请号：US18590922

申请日：2024-02-28

Applicant: Samsung Electronics Co., Ltd.

Inventor： Feng Qi ,  Abhishek Sehgal ,  Hao Chen ,  Jianzhong Zhang

IPC: H04W56/00

Abstract: A method includes calibrating, at a wireless device, a wireless fidelity (Wi-Fi) chipset-level timer based on a time synchronization function (TSF) frame received from a Wi-Fi access point. The method also includes performing, at the wireless device, a coarse synchronization of a microcontroller-level or CPU-level timer based on the calibrated Wi-Fi chipset-level timer. The method further includes performing, at the wireless device, a fine synchronization of the microcontroller-level or CPU-level timer after the coarse synchronization. The fine synchronization is performed according to a first time scale measured in first time units and the coarse synchronization is performed according to a second time scale measured in second time units that are a multiple of the first time units.

公开(公告)号：US12160829B2

公开(公告)日：2024-12-03

申请号：US17810280

申请日：2022-06-30

Applicant: Samsung Electronics Co., Ltd.

Inventor： Rebal Al Jurdi ,  Rubayet Shafin ,  Hao Chen ,  Boon Loong Ng

IPC: H04W4/02 ,  H04B1/7163 ,  H04W52/02 ,  H04W72/10 ,  H04W84/12

Abstract: A method includes obtaining a sleep-wake schedule associated with Wi-Fi communication of a Wi-Fi station (STA). The method also includes obtaining UWB-related information associated with ultra-wide band (UWB)-communication of a ranging capable device (RDEV). The method also includes determining a UWB ranging timeline based on a comparison of the sleep-wake schedule and the UWB-related information. The method also includes instructing the RDEV to use the UWB ranging timeline in a UWB ranging event.

公开(公告)号：US20240165370A1

公开(公告)日：2024-05-23

申请号：US18490657

申请日：2023-10-19

Applicant: Samsung Electronics Co., Ltd.

Inventor： Vutha Va ,  Hao Chen ,  Doyoon Kim ,  Jianzhong Zhang ,  Joonhyun Lee

IPC: A61M21/00 ,  A61B5/00 ,  G16H10/60

CPC classification number: A61M21/00 ,  A61B5/4809 ,  A61B5/4812 ,  A61B5/4815 ,  A61B5/7275 ,  G16H10/60

Abstract: An apparatus for monitoring sleep quality includes a plurality of sensors, a plurality of actuator modules, a transceiver, and a processor operatively coupled with the plurality of sensor modules, the plurality of actuator modules, and the transceiver. The processor is configured to monitor a sleep session of a user utilizing the apparatus. To monitor the sleep session, the processor is further configured to monitor a sleep state of the user, monitor a sleep stage of the user, and monitor a sleep condition. The processor is further configured to select a sleep facilitating action, control the sleep facilitating action based on the monitoring, and collect data related to the sleep session, and update a sleep history database associated with the user based on the data related to the sleep session.

公开(公告)号：US20230408678A1

公开(公告)日：2023-12-21

申请号：US18325896

申请日：2023-05-30

Applicant: Samsung Electronics Co., Ltd.

Inventor： Rebal Al Jurdi ,  Hao Chen ,  Boon Loong Ng ,  Kyu-Hui Han ,  Jianzhong Zhang

IPC: G01S13/87 ,  G01S13/76 ,  H04W64/00

CPC classification number: G01S13/878 ,  G01S13/76 ,  H04W64/00 ,  H04W84/12

Abstract: A method includes scanning for registered fine-time measurement (FTM)-enabled Wi-Fi nodes to generate a list of the FTM-enabled Wi-Fi nodes. The method also includes performing a ranging operation by (i) selecting nodes to range with from the list of the FTM-enabled Wi-Fi nodes and (ii) processing ranging responses from the selected nodes to generate distance measurements. The method further includes estimating a position of a device based on the distance measurements generated from the ranging operation.

公开(公告)号：US20230033259A1

公开(公告)日：2023-02-02

申请号：US17806068

申请日：2022-06-08

Applicant: Samsung Electronics Co., Ltd.

Inventor： Shiyang Leng ,  Hao Chen ,  Ahmed Atef Ibrahim Ibrahim ,  Namjeong Lee ,  Sooyoung Hur

IPC: H04B7/0456 ,  H04L1/00

Abstract: Apparatuses and methods for precoding matrix indicator (PMI)-based data beam nulling with a channel state information (CSI) report. An apparatus includes a transceiver configured to communicate via a wired or wireless communication medium and a processor coupled to the transceiver. The processor is configured to identify restricted PMI beams in a nulling direction for supported ranks; receive, via the transceiver from a user equipment (UE), a CSI report including a rank, a PMI, and channel quality indicator (CQI) feedback; and determine whether the reported PMI is restricted. The processor is further configured to select an alternative PMI among a number of unrestricted PMIs for the reported rank; boost a reported CQI if a reduced transmit power is configured; and select a modulation coding scheme (MCS) and generate a precoder for a data beam based on at least one of: the CSI report, the alternative PMI, and the boosted CQI.

公开(公告)号：US20220095267A1

公开(公告)日：2022-03-24

申请号：US17460022

申请日：2021-08-27

Applicant: Samsung Electronics Co., Ltd.

Inventor： Rubayet Shafin ,  Vishnu Vardhan Ratnam ,  Hao Chen ,  Yan Xin ,  Jianzhong Zhang

IPC: H04W64/00 ,  H04W24/10 ,  G06N20/00 ,  G01S5/02

Abstract: A method for performing line-of-sight (LoS)/non-line-of-sight (NLoS) filtering includes collecting, from at least one user equipment (UE) operating within a coverage area of a base station, a plurality of measurement reports from the at least one UE, wherein each measurement report of the plurality of measurement reports comprises a measured value of a signal parameter and location information of the at least one UE. The method further includes training a LoS/NLoS classification model on the plurality of measurement reports, obtaining a new measurement report from a UE operating at a first location within the coverage area of the base station and passing the new measurement report from the UE to the trained LoS/NLoS classification model to obtain a LoS/NLoS classification of the first location.

公开(公告)号：US11122497B2

公开(公告)日：2021-09-14

申请号：US15970115

申请日：2018-05-03

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hao Chen ,  Young-Han Nam ,  Chao He ,  Vikram Chandrasekhar ,  Hongbo Si ,  Boon Loong Ng

IPC: H04W48/10 ,  H04W8/08 ,  H04W24/10 ,  H04W56/00 ,  H04W48/16

Abstract: Apparatuses and methods for synchronization signal (SS) block index and timing indication in wireless communication systems. A method of operating a user equipment (UE) includes receiving, from a base station (BS), sets of higher-layer configuration information. When configured for mobility measurement on SS and physical broadcast channel (PBCH) (SS/PBCH) blocks, the UE identifies, based on one of the sets of higher-layer configuration information, a first set of SS/PBCH blocks configured for the mobility measurement; and measures and reports mobility measurement quantities for the first set of SS/PBCH blocks. When configured for receiving a physical downlink shared channel (PDSCH), the UE identifies, based on another of the sets of higher-layer configuration information, a second set of SS/PBCH blocks configured for the UE; and receives the PDSCH with rate matching around a SS/PBCH block included in the second set of SS/PBCH blocks.