公开(公告)号：US20220201533A1

公开(公告)日：2022-06-23

申请号：US17444981

申请日：2021-08-12

Applicant: Samsung Electronics Co., Ltd.

Inventor： Abhishek Sehgal ,  Guanbo Chen ,  Wenxun Qiu

IPC: H04W28/02 ,  H04W52/02 ,  H04W24/08

Abstract: A wireless communication device comprising a processor configured to obtain first information on network conditions and second information on packets delivered to another communication device during a current target wake time (TWT) session, and to update a TWT service period (SP) duration for a future TWT session based on the first information and the second information.

公开(公告)号：US20210270936A1

公开(公告)日：2021-09-02

申请号：US17184450

申请日：2021-02-24

Applicant: Samsung Electronics Co., Ltd.

Inventor： Guanbo Chen ,  Wenxun Qiu ,  Boon Loong Ng

IPC: G01S7/41 ,  G06F3/01

Abstract: A method includes receiving from a transceiver, at a processor of an electronic device, a radar signal, the radar signal including a set of signal strength values across a range of Doppler frequency shift values and a range of time values. The method further includes extracting a time series of frequency features from the radar signal, wherein frequency features of the time series of frequency features include a determined Doppler frequency shift value for each time value of the range of time values, identifying segments within the time series of frequency features, analyzing the segments to determine a start time for a classification engine, at the start time, analyzing, by the classification engine, at least one of a subset of the time series of frequency features or a subset of the radar signal to identify a control gesture, and triggering a control input associated with the control gesture.

公开(公告)号：US20250102616A1

公开(公告)日：2025-03-27

申请号：US18821948

申请日：2024-08-30

Applicant: Samsung Electronics Co., Ltd.

Inventor： Guanbo Chen ,  Songwei Li ,  Yuming Zhu ,  Vishnu Vardhan Ratnam

IPC: G01S7/00 ,  G01S7/41 ,  G01S13/52 ,  H04W24/02 ,  H04W84/12

Abstract: A computer-implemented method for multi-device sensing at a first device in a wireless network, comprising: determining, by the first device, whether the first device operates in a mode in which the first device and a second device coordinate to simultaneously transmit and receive radio frequency (RF) signals and the first device is within a distance of the second device, exchanging, by the first device, RF signals with the second device, obtaining, by communicating with the second device, signal information from the exchanged RF signals, and performing sensing based on the signal information

公开(公告)号：US20250004122A1

公开(公告)日：2025-01-02

申请号：US18752605

申请日：2024-06-24

Applicant: Samsung Electronics Co., Ltd.

Inventor： Songwei Li ,  Guanbo Chen ,  Yuming Zhu ,  Vishnu Vardhan Ratnam ,  Viet Nguyen

IPC: G01S13/56 ,  G01S7/00 ,  G01S7/41 ,  G01S13/00

Abstract: One embodiment provides a method for presence detection based on wireless signal analysis, the method comprising extracting features from wireless signals transmitted between a plurality of stations (STAs) and at least one access-point (AP) located within a space comprising a plurality of portions, wherein the AP is located in a particular portion of the space and a plurality of STAs are located in different portions in the space such that there are non-line-of-sight (NLOS) signals between the AP and the plurality of STAs as a result of signal obstructions within the space, processing the features using feature analysis, and detecting a location of a user motion within a particular portion of the plurality of portions of the space based on the feature analysis.

公开(公告)号：US20240236860A1

公开(公告)日：2024-07-11

申请号：US18493724

申请日：2023-10-24

Applicant: Samsung Electronics Co., Ltd.

Inventor： Khuong N. Nguyen ,  Abhishek Sehgal ,  Hao Chen ,  Guanbo Chen

IPC: H04W52/02

CPC classification number: H04W52/0248

Abstract: Embodiments of the present disclosure provide methods and apparatuses for predicting a quality of experience (QoE) of a user and adjusting target wake time (TWT) operations for the user based on the predicted quality of experience in a wireless local area network communications system. The apparatuses include a communication device comprising a transceiver and a processor operably connected to the transceiver. The transceiver is configured to receive traffic over a wireless network for an application in a TWT operation. The processor is configured to determine network statistics from the traffic, estimate a QoE value for the application based on the network statistics, and determine new TWT parameters for the TWT operation based on the estimated QoE value.

公开(公告)号：US20220369232A1

公开(公告)日：2022-11-17

申请号：US17657940

申请日：2022-04-04

Applicant: Samsung Electronics Co., Ltd.

Inventor： Guanbo Chen ,  Abhishek Sehgal ,  Wenxun Qiu

IPC: H04W52/02 ,  H04L47/2441

Abstract: A method includes obtaining statistical information of incoming network traffic. The method also includes using a state machine to classify the incoming network traffic as a traffic pattern based on the statistical information. The method further includes using the traffic pattern to adapt one or more Target Wakeup Time (TWT) parameters to optimize power consumption of a Wi-Fi station. The traffic pattern includes at least one of bursty traffic, random traffic, and stable traffic.

公开(公告)号：US20240329227A1

公开(公告)日：2024-10-03

申请号：US18595135

申请日：2024-03-04

Applicant: Samsung Electronics Co., Ltd.

Inventor： Guanbo Chen ,  Yuming Zhu ,  Hao-Hsuan Chang ,  Hao Chen ,  Songwei Li ,  Hoang Viet Nguyen ,  Siddharth K. Advani

IPC: G01S13/56 ,  H04B17/309

CPC classification number: G01S13/56 ,  H04B17/309

Abstract: A method includes obtaining wireless fidelity (Wi-Fi) based channel state information (CSI). The method also includes filtering the CSI to remove radio frequency (RF) interference. The method further includes executing a motion detection module that detects for motion in a space based on whether macro-movements are present in the filtered CSI, and provides an indication that the space is occupied upon detecting motion in the space. The method also includes, in response to the indication that the space is occupied, executing an occupancy detection module that detects whether the space is still occupied based on whether micro-movements and breath signals are present in the filtered CSI, retains the indication that the space is occupied upon detecting that the space is still occupied, and provides an indication that the space is not occupied upon detecting that the space is no longer occupied.

公开(公告)号：US11910225B2

公开(公告)日：2024-02-20

申请号：US17444981

申请日：2021-08-12

Applicant: Samsung Electronics Co., Ltd.

Inventor： Abhishek Sehgal ,  Guanbo Chen ,  Wenxun Qiu

IPC: H04W28/02 ,  H04W24/08 ,  H04W52/02

CPC classification number: H04W28/0221 ,  H04W24/08 ,  H04W52/0216

Abstract: A wireless communication device comprising a processor configured to obtain first information on network conditions and second information on packets delivered to another communication device during a current target wake time (TWT) session, and to update a TWT service period (SP) duration for a future TWT session based on the first information and the second information.

公开(公告)号：US20240027572A1

公开(公告)日：2024-01-25

申请号：US18348256

申请日：2023-07-06

Applicant: Samsung Electronics Co., Ltd.

Inventor： Abhishek Sehgal ,  Vishnu Vardhan Ratnam ,  Guanbo Chen ,  Hao Chen

IPC: G01S7/00 ,  G01S7/02 ,  G01S13/10

CPC classification number: G01S7/006 ,  G01S7/0235 ,  G01S13/106 ,  H04W84/12

Abstract: A method includes obtaining radar pulse configuration information at an electronic device. The method also includes generating a data unit of a Wi-Fi communications protocol based on the radar pulse configuration information, the data unit comprising a preamble and a data field. The method also includes transmitting at least one radar pulse within a duration of the data field. The method also includes receiving at least one reflection of the at least one radar pulse within the duration of the data field. The method also includes processing the at least one reflection to determine a distance between an object and the electronic device.

公开(公告)号：US20230232324A1

公开(公告)日：2023-07-20

申请号：US18147650

申请日：2022-12-28

Applicant: Samsung Electronics Co., Ltd.

Inventor： Guanbo Chen ,  Abhishek Sehgal ,  Hao Chen ,  Khuong N. Nguyen

IPC: H04W52/02

CPC classification number: H04W52/0216

Abstract: Methods and apparatuses for detecting conditions associated with a target wake time (TWT) parameter adjustment. A communication device comprises a transceiver and a processor operably coupled to the transceiver. The transceiver is configured to receive information including packets associated with a TWT. The processor is configured to determine a network service type based on the packets, and when the determined network service type is a real-time service type: determine whether a condition associated with the TWT is satisfied, and modify the TWT based on the condition.