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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.
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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.
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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
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.
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4.发明公开
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
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.
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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.
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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
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.
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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
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.
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公开(公告)号：US11076348B2
公开(公告)日：2021-07-27
申请号：US16732232
申请日：2019-12-31
Applicant: Samsung Electronics Co., Ltd.
Inventor： Jeongho Jeon , Vishnu Vardhan Ratnam , Joonyoung Cho , Hao Chen , Jianhua Mo
Abstract: Methods and apparatuses for neighbor discovery and wireless inter-connection in a wireless communication system. A method for operating a base station (BS) in the wireless communication network includes generating measurement information regarding neighboring BSs of the BS in the wireless communication network; determining a first parent BS of the neighboring BSs to connect to based on the measurement information; performing an initial access procedure with the first parent BS to connect to the first parent BS; identifying an end-to-end route for the BS for transfer of data between a user equipment (UE) and a gateway via the wireless communication network; and transferring the data between the gateway and the UE based on the identified end-to-end route.
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9.发明申请
公开(公告)号：US20250071565A1
公开(公告)日：2025-02-27
申请号：US18791282
申请日：2024-07-31
Applicant: Samsung Electronics Co., Ltd.
Inventor： Aditya Dave , Indranil Sinharoy , Hao Chen , Daoud Burghal , Athul Prasad , Jianzhong Zhang
Abstract: A method includes identifying a zone blocked from line of sight (LOS) of a gNB; receiving a 3D spatial map of a first area including the zone and a second area that surrounds the zone and that is within both a coverage area and the LOS of the gNB; determining whether the second area includes a mountable surface to which a passive RF reflective metasurface is attachable; and determining whether the metasurface, if attached to the mountable surface, generates a reflection path to the zone, based on a determination that the second area includes the mountable surface and based on estimated propagation paths from the gNB to the zone. The method includes determining whether to add a metasurface to the second area based on: a determination result whether the reflection path from the metasurface attached to the mountable surface to the zone includes reflected signals satisfying a threshold bandwidth condition.
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公开(公告)号：US20250028016A1
公开(公告)日：2025-01-23
申请号：US18770486
申请日：2024-07-11
Applicant: Samsung Electronics Co., Ltd.
Inventor： Vishnu Vardhan Ratnam , Wei Sun , Bilal Sadiq , Hao Chen , Kyeong Jin Kim , Shunyao Wu , Boon Loong Ng , Jianzhong Zhang
Abstract: A method includes obtaining range estimates and carrier phase estimates from each of multiple anchors. The method also includes, in response to determining that a trilateration technique is to be performed, (i) obtaining improved range estimates using the carrier phase estimates and (ii) determining a first location estimate of a target device using the trilateration technique and the improved range estimates. The method also includes, in response to determining that a triangulation technique is to be performed, (i) obtaining differential range estimates using the carrier phase estimates and (ii) determining a second location estimate of the target device using the triangulation technique and the differential range estimates. The method also includes combining the first location estimate and the second location estimate to determine an overall location estimate of the target device.
