Patents by Inventor Li-Hsiang Sun

Li-Hsiang Sun 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).

  • Patent number: 12004084
    Abstract: Methods and apparatuses are described herein for network discovery. A wireless transmit/receive unit (WTRU) may transmit, to a first access point (AP), via a Primary Connectivity Radio (PCR), a request indicating that on a condition that the WTRU is disassociated from the first AP, the WTRU will enter a wake-up radio (WUR) only discovery mode. The WTRU may receive, from the first AP, via the PCR, a management frame that has WUR discovery elements including an indication of at least one channel used by a second AP. The WTRU may perform disassociation from the first AP. The WTRU may activate a WUR and deactivate the PCR. On a condition that the WTRU is disassociated from the first AP, the WTRU may receive, from the second AP, via the WUR, a WUR frame over the at least one channel to enable the WTRU to activate the PCR to initiate association.
    Type: Grant
    Filed: July 19, 2022
    Date of Patent: June 4, 2024
    Assignee: INTERDIGITAL PATENT HOLDINGS, INC.
    Inventors: Xiaofei Wang, Li-Hsiang Sun, Hanqing Lou, Oghenekome Oteri, Joseph S. Levy, Rui Yang, Alphan Sahin
  • Patent number: 12003441
    Abstract: Methods and apparatuses are described herein for feedback based midamble adaptation. For example, a first station (STA) may transmit, to a second STA, a request frame that includes an indicator indicating a request for midamble information. The first STA may receive, from the second STA, a response frame that includes the midamble information determined by the second STA based on one or more channel measurements associated with the second STA. The midamble information may include a midamble report, a Doppler measurement report, or the like. The midamble report or the Doppler measurement report may include at least one of a midamble periodicity, a mobility/Doppler level, or the like. Based on the midamble information, the first STA may generate a physical layer convergence procedure (PLCP) protocol data unit (PPDU) that includes at least one midamble within a data portion of the PPDU.
    Type: Grant
    Filed: July 10, 2020
    Date of Patent: June 4, 2024
    Assignee: INTERDIGITAL PATENT HOLDINGS, INC.
    Inventors: Hanqing Lou, Li-Hsiang Sun, Rui Yang, Joseph S. Levy, Xiaofei Wang
  • Publication number: 20240179547
    Abstract: A communication device is provided herein. The communication device may include a processor and the transceiver configured to monitor for one or more frames in a plurality of beamforming sectors during a time interval. The processor and the transceiver may be configured to receive at least one frame in at least one the plurality of beamforming sectors during the time interval. The processor and the transceiver may be configured to transmit a response frame using beamforming parameters based on one of the plurality of beamforming sectors in which the at least one frame is received, wherein the response frame is transmitted using a subsequent time interval associated with the one of the plurality of beamforming sectors. The processor and the transceiver may be configured to operate in an unlicensed frequency band.
    Type: Application
    Filed: February 5, 2024
    Publication date: May 30, 2024
    Applicant: InterDigital Patent Holdings, Inc.
    Inventors: Hanqing Lou, Xiaofei Wang, Li Hsiang Sun, Oghenekome Oteri, Rui Yang
  • Publication number: 20240172275
    Abstract: Methods, apparatuses and systems for using at least one sub-channel of a physical channel for uplink communication, the physical channel including a set of resources within first and second channel boundaries such that the physical channel includes a plurality of sub-channels, each sub-channel comprising a subset of the resources of the physical channel and having at least one sub-channel boundary which is not coincident with the first or the second channel boundaries, are provided. One representative apparatus includes a Station (STA) including: a processor, and a transmit/receive unit configured to: transmit, via an uplink, control information including a sub-channel SIG field indicating an identity of the STA, receive a trigger frame indicating one or more sub-channels available form among a plurality of sub-channels, determine which of the one or more sub-channels to acquire, and transmit data, via the uplink, using the one or more acquired sub-channels.
    Type: Application
    Filed: February 1, 2024
    Publication date: May 23, 2024
    Applicant: InterDigital Patent Holdings, Inc.
    Inventors: Oghenekome Oteri, Li-Hsiang Sun, Nirav B Shah, Xiaofei Wang, Rui Yang, Guodong Zhang, Robert L Olesen
  • Publication number: 20240163019
    Abstract: A method for use in a wireless transmit/receive unit (WTRU). The method comprises: receiving LRRE information from an AP; determining whether a first condition is satisfied by the WTRU, wherein the first condition is satisfied by the WTRU, on a condition that the first condition is satisfied, sending a mode change request to the AP to change an operation mode to a LRRE HARQ mode; receiving a response regarding the mode change request from the AP; and communicating with the AP using a plurality of PPDUs, each of the PPDUs comprising at least one field enabling transmissions between the WTRU and the AP under the first condition and a LRRE HARQ mode indication.
    Type: Application
    Filed: January 23, 2024
    Publication date: May 16, 2024
    Applicant: InterDigital Patent Holdings, Inc.
    Inventors: Xiaofei Wang, Hanqing Lou, Oghenekome Oteri, Li-Hsiang Sun
  • Patent number: 11963224
    Abstract: A wireless local area network (WLAN) protocol having a non-zero backoff procedure which is bounded by setting a backoff counter to a random value greater than or equal to at least one backoff slot in starting to contend for a channel. This is preferably utilized in combination with setting the Arbitration Inter-Frame Spacing (AIFS) time to an amount less than that utilized for a legacy backoff. The parameters controlling the non-zero backoff may be set by the station performing the contention, or by an associated Access Point (AP), or in response to negotiation between the station and the AP. In some cases the station can switch between enabling and disabling the non-zero backoff procedure during different periods of time.
    Type: Grant
    Filed: October 24, 2021
    Date of Patent: April 16, 2024
    Assignees: SONY GROUP CORPORATION, SONY CORPORATION OF AMERICA
    Inventors: Liangxiao Xin, Mohamed Abouelseoud, Li-Hsiang Sun, Qing Xia
  • Publication number: 20240120970
    Abstract: Systems, methods, and devices for beamforming (BF) training are disclosed. In some examples, a receiver is configured to receive sector sweep (SSW) training frames from an initiator device that each indicate an antenna sector of the initiator device. A transmitter is configured to transmit sector sweep (SSW) training frames to the initiator device that indicate a best received antenna sector of the initiator device. The receiver receives a sector sweep feedback (SSW FB) frame from the initiator device, and the transmitter transmits transmit a sector sweep acknowledgement (SSW ACK) frame to the initiator device that indicates an antenna sector of the initiator device that is different from the antenna sector indicated by the SSW FB frame, if the SSW FB frame was best received by an antenna not corresponding to the best received antenna sector of the initiator device.
    Type: Application
    Filed: December 20, 2023
    Publication date: April 11, 2024
    Applicant: InterDigital Patent Holdings, Inc.
    Inventors: Hanqing Lou, Li Hsiang Sun, Oghenekome Oteri, Xiaofei Wang, Rui Yang
  • Publication number: 20240120972
    Abstract: Methods and apparatuses for multiple input-multiple output (MIMO) channel access are provided herein. A method performed by a station (STA) may include receiving, from an initiating STA, a frame including information indicating a broadcast address and a control trailer. The control trailer may include information indicating that a multi-user multiple input-multiple output (MU-MIMO) frame is to be received from the initiating STA, and information indicative of a plurality of STAs, the plurality of STAs including the STA. The method may include transmitting a response frame to the indicated broadcast address based on the received frame and receiving the MU-MIMO frame from the initiating STA.
    Type: Application
    Filed: December 12, 2023
    Publication date: April 11, 2024
    Applicant: INTERDIGITAL PATENT HOLDINGS, INC.
    Inventors: Frank La Sita, Hanqing Lou, Oghenekome Oteri, Alphan Sahin, Li Hsiang Sun, Xiaofei Wang, Rui Yang
  • Publication number: 20240121071
    Abstract: Methods and apparatuses are described herein for multiple access schemes for Wireless Local Area Network (WLAN) with full-duplex radios. For example, an access point (AP), in response to receiving a request to send (RTS) from a first station (STA), may transmit a full-duplex clear to send (FD CTS) to the first STA and a full-duplex request to send (FD RTS) to a second STA. In response to transmitting the FD RTS to the second STA, the AP may receive a clear to send (CTS) from the second STA. The AP may transmit, to both the first STA and the second STA, a FD trigger frame that includes scheduling information to enables FD communication with the first STA for uplink (UL) data and the second STA for downlink (DL) data at a same time. The scheduling information may include timing information and channel information for the FD communication.
    Type: Application
    Filed: December 19, 2023
    Publication date: April 11, 2024
    Applicant: INTERDIGITAL PATENT HOLDINGS, INC.
    Inventors: Oghenekome Oteri, Hanqing Lou, Li Hsiang Sun, Alphan Sahin, Robert L. Olesen, Xiaofei Wang, Rui Yang
  • Patent number: 11946593
    Abstract: Provided is a grease injection system including a plurality of grease injection devices and a host. The grease injection devices uses control information to output lubricating grease, and output a plurality of pieces of status information. The host receives the pieces of status information from the grease injection devices, and generates the control information based on the pieces of status information.
    Type: Grant
    Filed: September 1, 2022
    Date of Patent: April 2, 2024
    Assignee: DORCAS SHIN CO., LTD
    Inventors: Ming-Tan Hsu, Xin-Xin Lin, Li-Hsiang Sun, Wen-Chi Hsieh
  • Patent number: 11949477
    Abstract: Systems, methods, and instrumentalities are disclosed for adaptation of multiple input multiple output (MIMO) mode in mmW Wireless Local Area Network (WLAN) systems. A first station (STA) may receive a mode change request from a second STA. The mode change request may indicate a mode change for a MIMO mode, a polarization mode, and/or an orthogonal frequency-division multiple access (OFDMA) mode. The mode change request may include one or more STA fields. The one or more STA fields may include a STA field associated with the first STA. Each of the one or more STA fields may include a MIMO mode subfield, a polarization mode subfield, and/or an OFDMA mode subfield. The first STA may change the MIMO mode, the polarization mode, and/or the OFDMA mode, for example, based on the mode change request. The first STA may send a mode change response to the second STA.
    Type: Grant
    Filed: November 1, 2021
    Date of Patent: April 2, 2024
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Oghenekome Oteri, Hanqing Lou, Xiaofei Wang, Li-Hsiang Sun, Alphan Sahin, Rui Yang
  • Publication number: 20240107537
    Abstract: A method of multi-access point (multi-AP) communication performed by a wireless transmit/receive unit (WTRU) comprises: receiving a first trigger frame from a first access point (AP) of a plurality of APs, the first trigger frame comprising first information; receiving a second trigger frame from a second AP of the plurality of APs at a predetermined time duration after receiving the first trigger frame, the second trigger frame also comprising the first information of the first trigger frame; generating a synchronization frame based on the first trigger frame and the second trigger frame, the synchronization frame comprising synchronization information; transmitting the synchronization frame to at least the first AP and the second AP; and receiving a data transmission based on the synchronization information from each of the first AP and the second AP.
    Type: Application
    Filed: November 29, 2023
    Publication date: March 28, 2024
    Applicant: InterDigital Patent Holdings, Inc.
    Inventors: Oghenekome Oteri, Hanqing Lou, Li-Hsiang Sun, Xiaofei Wang, Alphan Sahin, Rui Yang, Frank LaSita
  • Publication number: 20240106585
    Abstract: A wireless station (STA) for parameterized spatial reuse (PSR) operation. The STA may receive, from a first access point (AP) that the STA is not associated with, a trigger frame. The trigger frame includes a signal (SIG) field that includes a PSR field. The PSR field includes a plurality of subfields each corresponding to a respective subchannel associated with the trigger frame. This information includes transmission power level information. The STA may then determine, for each subchannel, using the transmission power level information, transmission power upper bounds for each of the subchannels.
    Type: Application
    Filed: November 24, 2021
    Publication date: March 28, 2024
    Applicant: INTERDIGITAL PATENT HOLDINGS, INC.
    Inventors: Hanqing Lou, Zinan Lin, Xiaofei Wang, Rui Yang, Li Hsiang Sun
  • Patent number: 11937285
    Abstract: Methods and apparatus for interference discovery for simultaneous transmission and reception are provided. In an embodiment, a station (STA) receives a STR request message from an access point (AP). The STA transmits a first STR response message to the AP based on the received STR request message. The STA receives a second STR response message transmitted from a second STA to the AP. The STA determines a received power of the received second STR response message. The STA receives a first trigger message from the AP. The first trigger message indicates a STA role field. The STA transmits interference information to the AP. The interference information is based on the determined received power. The STA role field comprises an indication of at least one or more of a primary STA and a secondary STA. The STA aggregates the interference report with a data transmission to the AP in response to the first trigger message.
    Type: Grant
    Filed: November 1, 2022
    Date of Patent: March 19, 2024
    Assignee: Interdigital Patent Holdings, Inc.
    Inventors: Hanqing Lou, Alphan Sahin, Oghenekome Oteri, Li-Hsiang Sun, Xiaofei Wang, Rui Yang
  • Publication number: 20240080891
    Abstract: Protocol enhancements for IEEE 802.11 handling of Buffer Status Reports (BSRs) to provide real-time information on Quality of Service (QoS) requirements. A non-AP STA can report QoS status about portions of a buffer, which then allows the AP to schedule transmissions for those buffers toward satisfying their QoS requirements. The non-AP STA can also change parameters of the QoS characteristics element of an existing SCS to allow the AP to schedule transmission for the SCS traffic with the new parameters immediately. The non-AP STA can also report on buffers that should soon arrive to allow the AP to trigger the transmission before those buffers arrive. Additional benefits are also provided.
    Type: Application
    Filed: August 17, 2023
    Publication date: March 7, 2024
    Applicants: SONY GROUP CORPORATION, SONY CORPORATION OF AMERICA
    Inventors: Liangxiao Xin, Li-Hsiang Sun, Qing Xia
  • Publication number: 20240072852
    Abstract: Methods and apparatus are described herein for dynamic allocation of multiple channels and data streams for multi-channel transmission and multiple-input and multiple-output (MIMO). For example, a station (STA) may receive an enhanced poll (EPoll) frame that includes a time offset, a channel offset and antenna/sector settings from an access point (AP). The STA may transmit, based on the received EPoll frame, an enhanced service period request (ESPR) frame that includes a MIMO control field and a multi-channel control field. The MIMO control field may indicate whether the STA supports MIMO transmission. The multi-channel control field may indicate whether the STA supports multi-channel transmission. Upon transmitting the ESPR frame, the STA may receive an enhanced grant frame from the AP. The enhanced grant frame may include an antenna configuration and a multi-channel allocation to enable the STA to perform the MIMO transmission and the multi-channel transmission.
    Type: Application
    Filed: September 5, 2023
    Publication date: February 29, 2024
    Applicant: INTERDIGITAL PATENT HOLDINGS, INC.
    Inventors: Hanqing LOU, Li Hsiang SUN, Oghenekome OTERI, Rui YANG
  • Patent number: 11916622
    Abstract: Systems, methods, and devices for beamforming (BF) training are disclosed. In some examples, a receiver is configured to receive sector sweep (SSW) training frames from an initiator device that each indicate an antenna sector of the initiator device. A transmitter is configured to transmit sector sweep (SSW) training frames to the initiator device that indicate a best received antenna sector of the initiator device. The receiver receives a sector sweep feedback (SSW FB) frame from the initiator device, and the transmitter transmits transmit a sector sweep acknowledgement (SSW ACK) frame to the initiator device that indicates an antenna sector of the initiator device that is different from the antenna sector indicated by the SSW FB frame, if the SSW FB frame was best received by an antenna not corresponding to the best received antenna sector of the initiator device.
    Type: Grant
    Filed: March 21, 2022
    Date of Patent: February 27, 2024
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Hanqing Lou, Li-Hsiang Sun, Oghenekome Oteri, Xiaofei Wang, Rui Yang
  • Publication number: 20240064634
    Abstract: Procedures and mechanisms for narrowband multi-channel transmission for wakeup radio (WUR) operation are disclosed. A station (STA) operating in WUR mode may have its a primary connectivity radio (PCR) turned off and its WUR turned and operating according to previously negotiated WUR operating parameters. The STA may monitor, for WUR beacons and frames over a first WUR channel, and determine that the first WUR channel does not support reliable transmission based on no beacons being received within a first duration. The STA may turn off the WUR, and turn on the PCR to send a first short WUR frame including a wakeup reason, and receive a second short WUR frame with a WUR channel assignment. The STA may turn off the PCR, turn on the WUR, and monitor for WUR signals on a second WUR channel according to the WUR channel assignment and the previously negotiated WUR operating parameters.
    Type: Application
    Filed: November 3, 2023
    Publication date: February 22, 2024
    Applicant: InterDigital Patent Holdings, Inc.
    Inventors: Hanqing Lou, Xiaofei J. Wang, Oghenekome Oteri, Alphan Sahin, Li-Hsiang Sun, Rui Yang
  • Patent number: 11909530
    Abstract: A method for use in a wireless transmit/receive unit (WTRU). The method comprises: receiving LRRE information from an AP; determining whether a first condition is satisfied by the WTRU, wherein the first condition is satisfied by the WTRU, on a condition that the first condition is satisfied, sending a mode change request to the AP to change an operation mode to a LRRE HARQ mode; receiving a response regarding the mode change request from the AP; and communicating with the AP using a plurality of PPDUs, each of the PPDUs comprising at least one field enabling transmissions between the WTRU and the AP under the first condition and a LRRE HARQ mode indication.
    Type: Grant
    Filed: January 10, 2020
    Date of Patent: February 20, 2024
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Xiaofei Wang, Hanqing Lou, Oghenekome Oteri, Li-Hsiang Sun
  • Patent number: 11901981
    Abstract: A method implemented by an apparatus having multiple antennas includes determining information that is associated with a baseband channel. The information indicating any of: measurement information and channel information. The apparatus transmits a signal for requesting baseband beam tracking. The signal transmission is based on a determination that system performance is degraded in a beamforming transmission and re-estimation of the baseband channel is part of a current link adaptation procedure.
    Type: Grant
    Filed: December 5, 2022
    Date of Patent: February 13, 2024
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Oghenekome Oteri, Rui Yang, Alphan Sahin, Hanqing Lou, Li Hsiang Sun