Patents by Inventor Abhishek Sehgal

Abhishek Sehgal has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240121724
    Abstract: Methods and apparatuses for prioritization handling for mid packet wake up protection after OBSS PD spatial reuse are disclosed. A method for wireless communication performed by a communication device comprises transmitting and receiving traffic for an application in an overlapping basic service set preamble detection (OBSS-PD) operation; and reducing a transmission power of the communication device, to reduce adding interference to an inter-basic service set (inter-BSS) physical layer protocol data unit (PPDU) that the communication device is transmitting over, based on energy detection (ED) and in accordance with a channel access procedure or a transmission power reduction procedure.
    Type: Application
    Filed: October 2, 2023
    Publication date: April 11, 2024
    Inventors: Abhishek Sehgal, Vishnu Vardhan Ratnam, Hao Chen, Boon Loong Ng
  • Patent number: 11924397
    Abstract: A method for generating content includes receiving information regarding electronic devices respectively capturing content associated with an event. The method also includes identifying, based on the received information, one or more parameters for the electronic devices to use in capturing the content, the one or more parameters identified to assist in generating multi-view content for the event from the captured content. The method further includes identifying, based on the received information, a common resolution for the electronic devices to use in capturing the content. Additionally, the method includes identifying, based on the received information, a common frame rate for the electronic devices to use in capturing the content. The method also includes sending information indicating the one or more parameters, the common resolution, and the common frame rate to the electronic devices.
    Type: Grant
    Filed: July 20, 2021
    Date of Patent: March 5, 2024
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Indranil Sinharoy, Abhishek Sehgal, Nishith Tripathi, Madhukar Budagavi, Esmaeil Faramarzi
  • Patent number: 11910225
    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.
    Type: Grant
    Filed: August 12, 2021
    Date of Patent: February 20, 2024
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Abhishek Sehgal, Guanbo Chen, Wenxun Qiu
  • Publication number: 20240027572
    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.
    Type: Application
    Filed: July 6, 2023
    Publication date: January 25, 2024
    Inventors: Abhishek Sehgal, Vishnu Vardhan Ratnam, Guanbo Chen, Hao Chen
  • Patent number: 11864107
    Abstract: Embodiments of the present disclosure provide methods and apparatuses for updating a target wake time (TWT) service period and interval. The apparatuses include a communication device comprising a transceiver and a processor. The transceiver is configured to transmit and receive higher layer data packets in a TWT operation during a time period. The processor is configured to determine, based on PHY data rates during the time period, effective higher layer data rates, estimate an initial data transceiving time based on the effective higher layer data rates and total lengths of the data packets, adjust the initial data transceiving time to obtain a higher layer data transceiving time based on an estimated network congestion level, an estimated re-transmission rate, and a total amount of TWT overhead during the time period, and determine a new TWT service period and interval based on the higher layer data transceiving time.
    Type: Grant
    Filed: December 23, 2021
    Date of Patent: January 2, 2024
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Guanbo Chen, Abhishek Sehgal, Wenxun Qiu, Hao Chen
  • Publication number: 20230387994
    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.
    Type: Application
    Filed: May 22, 2023
    Publication date: November 30, 2023
    Inventors: Vishnu Vardhan Ratnam, Hao Chen, Abhishek Sehgal, Hao-Hsuan Chang
  • Publication number: 20230284269
    Abstract: Methods and apparatuses for enabling reuse, by a node in a basic service set (BSS), of a channel medium that is in use by devices of an overlapping BSS (OBSS) in a wireless local area network. A method of wireless communication performed by a first node includes the steps of obtaining, based on transmissions from other nodes in at least one of a BSS or an OBSS, network context information for a network environment around the first node, updating an OBSS packet detection (PD) threshold for spatial reuse (SR) based on the network context information, and performing, for a transmission to one of the other nodes in the BSS, an SR clear channel assessment (CCA) using the updated OBSS PD threshold for detection of packets transmitted by the nodes in the OBSS.
    Type: Application
    Filed: March 2, 2023
    Publication date: September 7, 2023
    Inventors: Abhishek Sehgal, Ahmed Atef Ibrahim Ibrahim, Hao Chen, Boon Loong Ng
  • Publication number: 20230232324
    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.
    Type: Application
    Filed: December 28, 2022
    Publication date: July 20, 2023
    Inventors: Guanbo Chen, Abhishek Sehgal, Hao Chen, Khuong N. Nguyen
  • Publication number: 20230216760
    Abstract: A method includes obtaining input features based on network traffic received during a time window. The method also includes generating multiple network service type predictions about the network traffic during the time window using a machine learning (ML) classification system operating on the input features. The method also includes storing the multiple network service type predictions in different time steps in a first-in first-out (FIFO) buffer and generating decisions about a presence of each of multiple service types in the network traffic using a voting algorithm. The method also includes reducing fluctuations in the generated decisions using a logic-based stabilizer module to generate a final network service type decision.
    Type: Application
    Filed: October 17, 2022
    Publication date: July 6, 2023
    Inventors: Khuong N. Nguyen, Guanbo Chen, Hao Chen, Abhishek Sehgal, Rebal Al Jurdi
  • Publication number: 20230109057
    Abstract: A method includes obtaining Wi-Fi channel state information (CSI) data on a transmit antenna/receive antenna pair over a time period. The method also includes removing one or more anomalies present in the CSI data. The method also includes performing at least one of phase compensation and amplitude compensation on the CSI data to generate clean CSI data. The method also includes detecting a number of distinct respiration rates based on the clean CSI data. The method also includes, for each of the distinct respiration rates, determining a number of people that have that distinct respiration rate.
    Type: Application
    Filed: September 28, 2022
    Publication date: April 6, 2023
    Inventors: Hao-Hsuan Chang, Hao Chen, Vishnu Vardhan Ratnam, Abhishek Sehgal, Jianzhong Zhang
  • Publication number: 20230109149
    Abstract: A method includes receiving CSI data for at least one communication link between a first electronic device (ED1) and a Wi-Fi device in a 3D space. The method includes preprocessing the CSI data; and determining whether a motion of an object is detected within a threshold distance to the ED1 based on the preprocessed CSI data. The detection of the motion of the object corresponds to a determination that the object is present in the space. The detection of no motion of the object corresponds to a determination that the object is not present in the space. The method includes outputting at least one of: a first indicator indicating that the space is empty, in response to the determination that the object is not present in the space; or a second indicator indicating that the space is occupied, in response to the determination that the object is present in the space.
    Type: Application
    Filed: September 29, 2022
    Publication date: April 6, 2023
    Inventors: Hao Chen, Guanbo Chen, Hao-Hsuan Chang, Dong Li, Abhishek Sehgal
  • Patent number: 11550031
    Abstract: An electronic device, a method, and computer readable medium are disclosed. The method includes transmitting radar signals via a radar transceiver. The method also includes identifying signals of interest that represent biometric information of a user based on reflections of the radar signals received by the radar transceiver. The method further includes generating an input based on the signals of interest that include the biometric information. The method additionally includes extracting a feature vector based on the input. The method also includes authenticating the user based on comparison of the feature vector to a threshold of similarity with preregistered user data.
    Type: Grant
    Filed: November 18, 2019
    Date of Patent: January 10, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Khuong N. Nguyen, Wenxun Qiu, Boon Loong Ng, Vutha Va, Abhishek Sehgal
  • Publication number: 20220417856
    Abstract: A method includes determining one or more active slots and inactive slots in an ultra-wide band (UWB) ranging round. The method also includes determining multiple UWB silent periods in the ranging round based on an arrangement of the inactive slots. The method also includes determining a sleep-wake-up schedule that aligns with at least one selected silent period of the multiple UWB silent periods in the ranging round, the sleep-wake-up schedule to be used for Wi-Fi communication. The method also includes waking up a Wi-Fi station (STA) for the Wi-Fi communication during the at least one selected silent period, then going back to sleep according to the sleep-wake-up schedule.
    Type: Application
    Filed: June 14, 2022
    Publication date: December 29, 2022
    Inventors: Rebal Al Jurdi, Hao Chen, Khuong N. Nguyen, Abhishek Sehgal, Boon Loong Ng
  • Patent number: 11506753
    Abstract: A method and electronic device for radar-based face authentication anti-spoofing for determining access to the electronic device. The electronic device includes a radar transceiver and at least one processor. The at least one processor is configured to transmit, via the transceiver, a first set of signals, generate a channel impulse response (CIR) based on receipt of reflections of the first set of signals, detect a first CIR tap in the CIR, determine a selection of CIR data based on the detected first CIR tap, determine a profile matching metric based on comparison of the selection of CIR data to a set of predetermined reference signals, and determine whether to allow access to the electronic device based on comparison of the profile matching metric to a profile matching threshold.
    Type: Grant
    Filed: October 7, 2019
    Date of Patent: November 22, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Wenxun Qiu, Abhishek Sehgal, Kuldeep Gill, Vutha Va, Boon Loong Ng
  • Publication number: 20220369224
    Abstract: A method includes determining one or more active slots and inactive slots in an ultra-wide band (UWB) ranging round. The method also includes determining multiple silent periods in the ranging round based on an arrangement of the inactive slots. The method also includes determining a target silent period in the ranging round, among the multiple silent periods, to be used for WiFi communication. The method also includes determining multiple target wake time (TWT) parameters such that a TWT session period defined by the TWT parameters overlaps with the target silent period. The method also includes determining one or more second silent periods preceding the target silent period in which the TWT parameters can be negotiated with an access point (AP) for the WiFi communication. The method also includes negotiating the TWT parameters with the AP during the one or more second silent periods.
    Type: Application
    Filed: May 11, 2022
    Publication date: November 17, 2022
    Inventors: Rebal Al Jurdi, Abhishek Sehgal, Hao Chen, Boon Loong Ng, Yuming Zhu
  • Publication number: 20220369232
    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.
    Type: Application
    Filed: April 4, 2022
    Publication date: November 17, 2022
    Inventors: Guanbo Chen, Abhishek Sehgal, Wenxun Qiu
  • Publication number: 20220217630
    Abstract: Embodiments of the present disclosure provide methods and apparatuses for updating a target wake time (TWT) service period and interval. The apparatuses include a communication device comprising a transceiver and a processor. The transceiver is configured to transmit and receive higher layer data packets in a TWT operation during a time period. The processor is configured to determine, based on PHY data rates during the time period, effective higher layer data rates, estimate an initial data transceiving time based on the effective higher layer data rates and total lengths of the data packets, adjust the initial data transceiving time to obtain a higher layer data transceiving time based on an estimated network congestion level, an estimated re-transmission rate, and a total amount of TWT overhead during the time period, and determine a new TWT service period and interval based on the higher layer data transceiving time.
    Type: Application
    Filed: December 23, 2021
    Publication date: July 7, 2022
    Inventors: Guanbo Chen, Abhishek Sehgal, Wenxun Qiu, Hao Chen
  • Publication number: 20220201533
    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.
    Type: Application
    Filed: August 12, 2021
    Publication date: June 23, 2022
    Inventors: Abhishek Sehgal, Guanbo Chen, Wenxun Qiu
  • Patent number: 11284473
    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.
    Type: Grant
    Filed: July 23, 2019
    Date of Patent: March 22, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Wenxun Qiu, 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
  • Publication number: 20220030214
    Abstract: A method for generating content includes receiving information regarding electronic devices respectively capturing content associated with an event. The method also includes identifying, based on the received information, one or more parameters for the electronic devices to use in capturing the content, the one or more parameters identified to assist in generating multi-view content for the event from the captured content. The method further includes identifying, based on the received information, a common resolution for the electronic devices to use in capturing the content. Additionally, the method includes identifying, based on the received information, a common frame rate for the electronic devices to use in capturing the content. The method also includes sending information indicating the one or more parameters, the common resolution, and the common frame rate to the electronic devices.
    Type: Application
    Filed: July 20, 2021
    Publication date: January 27, 2022
    Inventors: Indranil Sinharoy, Abhishek Sehgal, Nishith Tripathi, Madhukar Budagavi, Esmaeil Faramarzi