Patents by Inventor Xiaogang Chen

Xiaogang Chen 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: 11509413
    Abstract: For example, an apparatus may include a segment parser to parse scrambled data bits of a PPDU into a first plurality of data bits and a second plurality of data bits, the PPDU to be transmitted in an OFDM transmission over an aggregated bandwidth comprising a first channel in a first frequency band and a second channel in a second frequency band; a first baseband processing block to encode and modulate the first plurality of data bits according to a first OFDM MCS for transmission over the first channel in the first frequency band; and a second baseband block to encode and modulate the second plurality of data bits according to a second OFDM MCS for transmission over the second channel in the second frequency band.
    Type: Grant
    Filed: June 28, 2018
    Date of Patent: November 22, 2022
    Assignee: INTEL CORPORATION
    Inventors: Alexander W. Min, Thomas J. Kenney, Laurent Cariou, Shahrnaz Azizi, Xiaogang Chen, Robert J. Stacey, Qinghua Li
  • Patent number: 11510098
    Abstract: Methods, computer readable media, and apparatus for determining a receive (Rx) number of spatial streams (NSS) for different bandwidths (BWs) and modulation and control schemes (MCSs) are disclosed. An apparatus is disclosed comprising processing circuitry configured to decode a supported HE-MCS and a NSS set field, the supported HE-MSC and NSS set field received from an high-efficiency (HE) station. The processing circuitry may be further configured to determine a first maximum value of N receive (Rx) SS for a MCS and a bandwidth (BW), where the first maximum value of N Rx SS is equal to a largest number of Rx SS that supports the MCS for the BW as indicated by the supported HE-MCS and NSS set field; and, determine additional maximum values based on an operating mode (OM) notification frame, and a value of an OM control (OMC) field. Signaling for BW in 6 GHz is disclosed.
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: November 22, 2022
    Assignee: Intel Corporation
    Inventors: Yaron Alpert, Laurent Cariou, Po-Kai Huang, Xiaogang Chen, Arik Klein, Danny Ben-Ari, Robert J. Stacey
  • Patent number: 11483838
    Abstract: A wireless communication device, method and system. The device includes a memory, and a processing circuitry coupled to the memory. The processing circuitry is to: decode at least one signal field portion of a signal field of a Physical Layer Convergence Protocol (PLCP) Data Unit (PPDU) received over a bonded channel, the bonded channel comprising a plurality of subchannels including a punctured subchannel, the signal field portion on at least one unpunctured subchannel of the plurality of subchannels; determine, from the at least one signal field portion, information on a resource allocation for the device, the resource allocation indicating at least one resource unit (RU) used in a data field of the PPDU for the device; and decode a data field portion of the data field of the PPDU, the data field portion received on a part of the punctured subchannel based on the resource allocation.
    Type: Grant
    Filed: June 13, 2018
    Date of Patent: October 25, 2022
    Assignee: Intel Corporation
    Inventors: Laurent Cariou, Xiaogang Chen, Qinghua Li, Robert J. Stacey, Huaning Niu
  • Patent number: 11480668
    Abstract: Embodiments of an access point (AP), station (STA) and method of communication are generally described herein. In a null data packet (NDP) based ranging procedure between a responding STA and an initiating STA that is unassociated with the responding STA, the responding STA may: transmit a broadcast frame that indicates one or more ranging parameters; receive, from the initiating STA, an NDP announcement (NDPA) frame that indicates transmission of a first NDP from the initiating STA; detect the first NDP from the initiating STA; transmit a second NDP for transmission to the initiating STA; and transmit, to the initiating STA, a location measurement report (LMR) that indicates: a reception time of the first NDP at the responding STA, and a transmission time of the second NDP at the responding STA.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: October 25, 2022
    Assignee: Intel Corporation
    Inventors: Feng Jiang, Qinghua Li, Jonathan Segev, Bahareh Sadeghi, Thomas J. Kenney, Xiaogang Chen, Gadi Shor, Po-Kai Huang, Robert J. Stacey, Laurent Cariou
  • Publication number: 20220338011
    Abstract: This disclosure describes systems, methods, and devices related to an invalid location measurement report (LMR) indication. A device may identify a first null data packet (NDP) received from a first station device during, wherein the first NDP is used for channel sounding. The device may perform a time of arrival (ToA) calculation based on the NDP. The device may determine an invalid indication associated with the first NDP based on the ToA calculation. The device may generate an LMR comprising of the invalid measurement indication. The device may cause to send the LMR to the first device.
    Type: Application
    Filed: January 21, 2022
    Publication date: October 20, 2022
    Inventors: Feng Jiang, Qinghua Li, Jonathan Segev, Assaf Gurevitz, Danny Alexander, Xiaogang Chen
  • Publication number: 20220338260
    Abstract: An access point station (AP) communicates with a plurality of non-AP stations (STAs) within a synchronized transmission opportunity (S-TXOP). The S-TXOP may comprise an S-TXOP trigger followed by a plurality of S-TXOP slots. After transmission of the S-TXOP trigger, the AP may encode, for transmission within an S-TXOP slot, a downlink (DL) multi-user physical layer protocol data unit (DL MU-PPDU). The DL MU-PPDU may include a preamble followed by a data field. To indicate that a previously signaled resource unit (RU) allocation is to be used during the S-TXOP slot, the AP may encode the preamble to include an allocation ID of the previously signaled RU allocation in a signal field (SIG) of the preamble and to include a SIG-2 presence indicator to indicate that a second signal field (SIG-2) is not included in the preamble.
    Type: Application
    Filed: June 20, 2022
    Publication date: October 20, 2022
    Inventors: Dave A. Cavalcanti, Dibakar Das, Laurent Cariou, Dmitry Vadimovich Akhmetov, Shahrnaz Azizi, Xiaogang Chen, Gadi Shor, Ehud Reshef, Juan Fang
  • Patent number: 11477807
    Abstract: This disclosure describes systems, methods, and devices related to signal detection. A device may determine a physical layer protocol data unit (PPDU). The device may append a preamble to the PPDU. The device may generate a frame. The device may send the frame.
    Type: Grant
    Filed: December 29, 2017
    Date of Patent: October 18, 2022
    Assignee: INTEL CORPORATION
    Inventors: Xiaogang Chen, Robert Stacey, Huaning Niu, Laurent Cariou, Qinghua Li, Feng Jiang
  • Publication number: 20220303052
    Abstract: An apparatus and system for decreasing packet error rate (PER) in a station (STA) are described. The STA determines that an Extremely High Throughput (EHT) physical layer protocol data unit (PPDU) is to be constructed for transmission and that Low-Density Parity-Check (LDPC) encoding is to be used to encode a data field of the EHT PPDU. In response, the STA constructs the EHT PPDU in accordance with a construction constraint of the data field of the EHT PPDU when a LDPC codeword (CW) size 648 is to be used for the data field of the EHT PPDU. The construction constraint includes using bit level interleaving or preventing use of LDPC CW size 648 for a modulation coding scheme (MCS) that is larger than 256 quadrature amplitude modulation (QAM) or 64 QAM or for all QAMs.
    Type: Application
    Filed: June 13, 2022
    Publication date: September 22, 2022
    Inventors: Xiaogang Chen, Shlomi Vituri, Qinghua Li, Thomas J. Kenney
  • Patent number: 11438729
    Abstract: Methods, apparatuses, and computer readable media for report identification and power control for ranging in a wireless network are disclosed. An apparatus of a responding station (RSTA) is disclosed, where the apparatus comprises processing circuitry configured to perform ranging with a initiating stations (ISTAs) and maintain a separate sounding dialogue token for each of the ISTAs and transmit a corresponding sounding dialogue token for a ISTA in a trigger frame for ranging and sounding or a null data packet announcement (NDPA) frame, and in a responding to initiating location measurement report. Apparatuses of RSTAs and ISTAS are disclosed that perform power control management during non-trigger-based ranging.
    Type: Grant
    Filed: January 26, 2021
    Date of Patent: September 6, 2022
    Assignee: Intel Corporation
    Inventors: Dibakar Das, Jonathan Segev, Chittabrata Ghosh, Ganesh Venkatesan, Feng Jiang, Qinghua Li, Xiaogang Chen, Eran Segev, Huaning Niu, Shlomi Vituri, Elad Oren, Chen Kojokaro
  • Patent number: 11438968
    Abstract: Methods, apparatuses, and computer readable media for non-contiguous resource units for wireless local-area networks (WLANs). An apparatus of an access point (AP) or station (STA) comprising processing circuitry configured to decode or encode a physical layer (PHY) protocol data unit (PPDU) in accordance with an aggregated (A) resource unit (RU)(A-RU) where the A-RU includes RUs, the RUs including tones that are contiguous, and where at least two of the RUs are non-contiguous with one another.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: September 6, 2022
    Assignee: Intel Corporation
    Inventors: Xiaogang Chen, Qinghua Li, Feng Jiang, Thomas J. Kenney, Chen Kojokaro, Ziv Avital
  • Patent number: 11438104
    Abstract: This disclosure describes systems, methods, and devices related to extremely high throughput (EHT) multiuser hybrid automatic repeat request (HARQ). A device may determine one or more medium access control (MAC) protocol data unit (MPDUs) to be sent to a first station device of one or more station devices, wherein the one or more MAC protocol data units (MPDUs) comprise a first MPDU. The device may segment the first MPDU into a plurality of segments, wherein the one or more segments include a first segment and a second segment. The device may cause to send the plurality of segments to the first station device. The device may identify a feedback frame received from the first station device, wherein the feedback frame comprises error information associated with the plurality of segments. The device may cause to retransmit at least one of the plurality of segments based on the error information.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: September 6, 2022
    Assignee: INTEL CORPORATION
    Inventors: Laurent Cariou, Xiaogang Chen, Po-Kai Huang, Javier Perez-Ramirez, Shahrnaz Azizi, Ravikumar Balakrishnan, Daniel Bravo, Feng Jiang, Thomas J. Kenney, Qinghua Li, Robert Stacey
  • Patent number: 11395185
    Abstract: This disclosure describes systems, methods, and devices related to an extreme high throughput (EHT) signaling structure. A device may establish a communication channel with one or more station devices (STAs). The device may generate an extreme high throughput signal field (EHT-SIG) of a header, wherein the EHT-SIG field comprises information associated with resource allocations (RUs). The device may generate a frame comprising the header. The device may assign a first RU to a first station device. The device may assign a second RU to the first station device, wherein the first RU or the second RU is an aggregation of a 26-tome RU and a neighboring RU. The device may cause to send the frame to the first station device.
    Type: Grant
    Filed: June 5, 2020
    Date of Patent: July 19, 2022
    Assignee: Intel Corporation
    Inventors: Xiaogang Chen, Qinghua Li, Thomas J. Kenney, Feng Jiang, Laurent Cariou, Ziv Avital, Chen Kojokaro, Robert Stacey
  • Publication number: 20220224362
    Abstract: This disclosure describes systems, methods, and devices related to over-puncture mitigation. A device may generate a frame comprising a payload having a payload size associated with a number of bits. The device may determine a low-density parity-check (LDPC) codeword size based on the payload size. The device may calculate a number of codewords based on the payload size. The device may calculate a number of shortening bits and a number of LDPC padding bits based on the number of codewords. The device may calculate a number of orthogonal frequency division multiplexing (OFDM) symbols for containing the number of codewords. The device may cause to send the frame with the number of OFDM symbols to a station device.
    Type: Application
    Filed: March 29, 2022
    Publication date: July 14, 2022
    Inventors: Xiaogang Chen, Thomas J. Kenney, Qingua Li, Robert Stacey, Shlomi Vituri
  • Patent number: 11374797
    Abstract: This disclosure describes systems, methods, and devices related to multi-user uplink channel sounding. A device may determine a channel sounding sequence with one or more access points (APs), wherein the channel sounding sequence comprises a null data packet announcement (NDPA) communicated with at least one of the one or more APs. The device may determine a first group of station devices (STAs) associated with a first basic service set (BSS). The device may cause to send a trigger frame to the first group of STAs to solicit an uplink NDP from each STA of the first group of STAs. The device may identify a first uplink NDP received from a first STA of the first group of STAs. The device may identify a second uplink NDP received from a second STA of a second group of STAs.
    Type: Grant
    Filed: February 19, 2020
    Date of Patent: June 28, 2022
    Assignee: Intel Corporation
    Inventors: Roya Doostnejad, Juan Fang, Feng Jiang, Laurent Cariou, Dave Cavalcanti, Xiaogang Chen, Timothy F. Cox, Jeffrey Foerster, Po-Kai Huang, Qinghua Li, Javier Perez-Ramirez
  • Patent number: 11366219
    Abstract: This disclosure describes systems, methods, and devices related to passive location measurement in wireless communications. A device may perform a ranging measurement with a first device and a second device. The device may identify a first uplink (UL) location measurement report (LMR) received from the first device. The device may identify a second UL LMR received from the second device. The device may cause to send a first broadcast LMR comprising information associated with the ranging determination of the first device and the second device. The device may cause to send a second broadcast LMR comprising the measurement information carried in the first UL LMR and the second UL LMR.
    Type: Grant
    Filed: January 30, 2019
    Date of Patent: June 21, 2022
    Assignee: Intel Corporation
    Inventors: Feng Jiang, Qinghua Li, Jonathan Segev, Xiaogang Chen, Robert Stacey
  • Publication number: 20220182870
    Abstract: This disclosure describes systems, methods, and devices related to null data packet (NDP) frame format. A device may cause to send a null data packet announcement (NDPA) frame to a responding station device (RSTA). The device may cause to send a first sounding NDP frame comprising one or more fields formatted to support 2.4 gigahertz (GHz) and 5 GHz bands in a non-trigger-based ranging measurement with the RSTA. The device may identify after a passage of a short inter-frame space (SIFS) time a second NDP frame received from the RSTA. The device may identify a location measurement report frame from the RSTA.
    Type: Application
    Filed: February 25, 2022
    Publication date: June 9, 2022
    Applicant: Intel Corporation
    Inventors: Feng Jiang, Qinghua Li, Jonathan Segev, Xiaogang Chen, Robert Stacey
  • Publication number: 20220182803
    Abstract: For example, a Next Generation Vehicular (NGV) wireless communication station (STA) may be configured to generate an NGV Physical Layer (PHY) Protocol Data Unit (PPDU) including an NGV preamble, the NGV preamble comprising a non High-Throughput (non-HT) Short Training Field (L-STF), a non-HT Long Training Field (L-LTF) after the L-STF, a non-HT Signal (L-SIG) field after the L-LTF, a Repeated L-SIG (RL-SIG) field after the L-SIG field, and an NGV Signal (NGV-SIG) field after the RL-SIG field, the NGV-SIG field including a version field configured to identify a version of the NGV PPDU; and to transmit the NGV PPDU over an NGV channel in an NGV wireless communication frequency band; and a memory to store information processed by the processor.
    Type: Application
    Filed: March 1, 2022
    Publication date: June 9, 2022
    Applicant: INTEL CORPORATION
    Inventors: Thomas J. Kenney, Xiaogang Chen, Qinghua Li, Feng Jiang, Laurent Cariou, Bahareh Sadeghi
  • Publication number: 20220182981
    Abstract: A station (STA) may operate as a first peer-to-peer (P2P) client (P2P1) for P2P operations with dual-stage triggering. The STA may decode a primary frame trigger frame (TF) from an access point (AP) operating as a coordinator. The primary TF may allocate resources in an initial portion of a time-duration allocation to the P2P1 for the P2P operations with one or more other peer stations, including a second P2P client (P2P2) and a third P2P client (P2P3). The primary TF may further allocate resources in a subsequent portion of the time-duration allocation to the P2P2 for the P2P operations. The STA may also encode a first secondary TF for transmission within the initial portion of the time-duration allocation. The first secondary TF may allocate specific resource units (RUs) to the one or more other peer stations. The STA may also decode a TB physical layer protocol data unit (TB PPDU) encoded in accordance with a multi-user orthogonal frequency division multiple access (MU OFDMA) frame format.
    Type: Application
    Filed: December 17, 2021
    Publication date: June 9, 2022
    Inventors: Jonathan Segev, Qinghua LI, Xiaogang Chen, Ofer HAREUVENI, David Birnbaum
  • Publication number: 20220174729
    Abstract: This disclosure describes systems, methods, and devices related to uplink (UL) null data packet (NDP) format for passive location. A device may cause to send a trigger frame that solicits poll response to one or more anchor stations involved in a passive ranging measurement. The device may identify one or more polling response frames received from the one or more anchor stations. The device may cause to send a trigger frame that solicits uplink null data packet (NDP) to the one or more anchor stations, wherein the uplink NDP comprises an indication of a high efficiency (HE) single user (SU) frame type.
    Type: Application
    Filed: February 16, 2022
    Publication date: June 2, 2022
    Applicant: Intel Corporation
    Inventors: Feng Jiang, Dibakar Das, Xiaogang Chen, Chittabrata Ghosh, Qinghua Li, Jonathan Segev, Robert Stacey, Ganesh Venkatesan
  • Publication number: 20220167307
    Abstract: The application provides a method, including: generating a Physical Layer (PHY) Protocol Data Unit (PPDU) comprising both information for one or more first-generation stations (R1 STAs) and information for one or more second-generation stations (R2 STAs); and transmitting the PPDU to the one or more R1 STAs and the one or more R2 STAs, wherein a preamble portion of the PPDU comprises Resource Unit (RU) allocation entries corresponding to the one or more R1 STAs and RU allocation entries corresponding to the one or more R2 STAs.
    Type: Application
    Filed: November 20, 2020
    Publication date: May 26, 2022
    Applicant: Intel Corporation
    Inventors: Xiaogang Chen, Thomas Kenney, Qinghua Li