公开(公告)号：US20250097830A1

公开(公告)日：2025-03-20

申请号：US18792479

申请日：2024-08-01

Applicant: Samsung Electronics Co., Ltd.

Inventor： Vishnu Vardhan Ratnam ,  Abhishek Sehgal ,  Boon Loong Ng ,  Yuming Zhu

IPC: H04W48/16 ,  H04L45/302

Abstract: Techniques for using contextual information from a host STAs in the context of a wireless network having at least one non-AP station (STA) are disclosed. The host STA uses transmitted fields from the AP to determine a make of the AP. The host STA sends a request message to control one or more AP parameters to the AP. The host STA, if the AP accepts the message, sends another message identifying the STAs in its network. The host STA also acquires, via a message from the AP, details about the STAs associated with the AP. When receiving contextual information from itself or otherwise, the host STA determines an appropriate action, and transmits an action request message for the AP to take the action. The AP confirms once the action is taken.

公开(公告)号：US20250063591A1

公开(公告)日：2025-02-20

申请号：US18781981

申请日：2024-07-23

Applicant: Samsung Electronics Co., Ltd.

Inventor： Vishnu Vardhan Ratnam ,  Boon Loong Ng ,  Rubayet Shafin ,  Peshal Nayak ,  Yue Qi ,  Elliot Jen ,  Abhishek Sehgal

IPC: H04W72/543 ,  H04W52/02

Abstract: Methods and apparatuses for link recommendation for meeting QoS requirements. A method of wireless communication performed by an AP associated with an AP MLD, the method comprising: receiving an indication of quality of service (QoS) requirements from a non-AP MLD; determining whether an existing target wake time (TWT) or existing links are sufficient to meet QoS requirements; when the existing TWT or existing links are not sufficient to meet the QoS requirements, transmitting a message to the non-AP MLD indicating a need to negotiate additional TWT service periods (SPs) or to transition additional enabled links to an active mode or enable additional links with the AP MLD; and when the existing TWT or existing links are sufficient to meet the QoS requirements, scheduling uplink or downlink resources to meet the QoS requirements.

公开(公告)号：US20250024327A1

公开(公告)日：2025-01-16

申请号：US18755563

申请日：2024-06-26

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kyeong Jin Kim ,  Abhishek Sehgal ,  Bilal Sadiq ,  Yuming Zhu

IPC: H04W28/08

Abstract: A method performed by an apparatus capable of multi-link operations with respect to a plurality of channels, comprising determining a fast channel and a slower channel, transmitting a packet in a packet queue using the fast channel without using the slower channel when a number of data packets waiting in the packet queue is smaller than a first threshold number, and transmitting a packet in the packet queue using both the fast channel and the slower channel when the number of data packets waiting in the packet queue is equal to or greater than the first threshold number.

公开(公告)号：US12160298B2

公开(公告)日：2024-12-03

申请号：US18321614

申请日：2023-05-22

Applicant: Samsung Electronics Co., Ltd.

Inventor： Vishnu Vardhan Ratnam ,  Hao Chen ,  Abhishek Sehgal ,  Hao-Hsuan Chang

IPC: H04B7/06 ,  H04L5/00 ,  H04L25/02 ,  H04W72/0446

Abstract: A method includes receiving CSI frames among P CSI frames transmitted from another electronic device. The method includes estimating a CSI from each of the received CSI frames as an available CSI estimate. The method includes identifying an impairment model accounting for inclusion of amplitude or phase errors of an estimated CSI corresponding to a p-th CSI frame among the P CSI frames. The method includes compensating, via the impairment model, for the errors in amplitude and phase of P CSI estimates. Compensating for the errors in amplitude and phase of the P CSI estimates can be based on: approximating a missing CSI estimate based on the available CSI estimates; determining an AGC gain value; or computing the errors in the phase based on a weighted least-squares solution. The method includes estimating a breathing rate of a subject based on different spatial dimensions of the P compensated CSI estimates.

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：US20240223484A1

公开(公告)日：2024-07-04

申请号：US18486906

申请日：2023-10-13

Applicant: Samsung Electronics Co., Ltd.

Inventor： Vishnu Vardhan Ratnam ,  Bilal Sadiq ,  Hao Chen ,  Abhishek Sehgal ,  Boon Loong Ng ,  Jianzhong Zhang

IPC: H04L43/0864 ,  H04L25/02 ,  H04L27/26 ,  H04L43/0829

CPC classification number: H04L43/0864 ,  H04L25/0202 ,  H04L27/2659 ,  H04L27/266 ,  H04L43/0841

Abstract: A method includes obtaining Wi-Fi channel state information (CSI) parameters measured at an anchor and a target device from Wi-Fi frames transmitted between the anchor and the target device, the CSI parameters comprising, for each of the anchor and the target device, frame transmission and reception times, a carrier phase of the CSI, a crystal offset factor, and a packet detection time error. The method also includes determining a round trip time (RTT) estimate or a relative change in the RTT estimate as a function of the CSI parameters. The method further includes estimating a range between the anchor and the target device as a function of the RTT estimate, or estimating a change in the range between the anchor and the target device as a function of the relative change in the RTT estimate.

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：US11017209B2

公开(公告)日：2021-05-25

申请号：US16586441

申请日：2019-09-27

Applicant: Samsung Electronics Co., Ltd.

Inventor： Abhishek Sehgal ,  Wenxun Qiu ,  Boon Loong Ng

IPC: G06K9/00 ,  G06F21/32 ,  H04W12/06 ,  G01J3/36 ,  G06K9/20

Abstract: An electronic device, a method and computer readable medium for multimodal authentication are disclosed. The method includes receiving a request for authentication, facial signature data generated based on an input from a radar source of the electronic device, and facial image data generated based on an input from a camera of the electronic device. The method also includes identifying an illumination condition and a sensor condition associated with the electronic device. The method additionally includes assigning a weight associated with the camera and the radar source based on the illumination condition and the sensor condition. The method further includes granting the request when at least one of the facial signature data and the facial image data are within a threshold of similarity with a preregistered facial data associated with the weight.

公开(公告)号：US20200293753A1

公开(公告)日：2020-09-17

申请号：US16586441

申请日：2019-09-27

Applicant: Samsung Electronics Co., Ltd.

Inventor： Abhishek Sehgal ,  Wenxun Qiu ,  Boon Loong Ng

IPC: G06K9/00 ,  G06F21/32 ,  G06K9/20 ,  G01J3/36 ,  H04W12/06

Abstract: An electronic device, a method and computer readable medium for multimodal authentication are disclosed. The method includes receiving a request for authentication, facial signature data generated based on an input from a radar source of the electronic device, and facial image data generated based on an input from a camera of the electronic device. The method also includes identifying an illumination condition and a sensor condition associated with the electronic device. The method additionally includes assigning a weight associated with the camera and the radar source based on the illumination condition and the sensor condition. The method further includes granting the request when at least one of the facial signature data and the facial image data are within a threshold of similarity with a preregistered facial data associated with the weight.

公开(公告)号：US20200037392A1

公开(公告)日：2020-01-30

申请号：US16520152

申请日：2019-07-23

Applicant: Samsung Electronics Co., Ltd.

Inventor： Wenxun Qui ,  Hao Chen ,  Matthew Tonnemacher ,  In-sick Jung ,  Jihoon Sung ,  Khuong N. Nguyen ,  Abhishek Sehgal ,  Jianhua Mo ,  Jianzhong Zhang ,  Junyeop Jung ,  John Wensowitch ,  Eric Johnson ,  Namjoon Park

IPC: H04W76/38 ,  H04W76/10 ,  H04W24/08 ,  H04W76/25 ,  H04L29/08

Abstract: A method of an electronic device for a connection management is provided. The method comprises: establishing a communication link with an access point (AP); receiving a triggering indication based on link information measured by the electronic device; determining a quality of the communication link between the electronic device and the AP based on the received triggering indication; comparing, based on the determined quality of the communication link, at least two Q values fetched from a Q table that is determined according to context in which in the electronic device is being used; setting a quantized aggressive index (QAI) value based on the compared at least two Q values; and generating a disconnection command based on the QAI value, wherein the disconnection command is a physical disconnection command or a virtual disconnection command of the communication link between the electronic device and the AP.