Patents by Inventor Pengfei Xia
Pengfei Xia 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).
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Patent number: 11791956Abstract: Technologies directed to grant-free transmission communication methodology and systems are described. One method includes determining first data that is associated with data transmission between a communication device and a first user terminal (UT). The method further includes determining, based on the first data, second data. The second data indicates communication resources associated with an uplink to the communication system that is allocated to the first UT. The second data further indicates that the communication resources are available for sending additional data by other non-scheduled UTs. The method further includes sending the second data to the first UT and receiving third data using the communication resources. The method further includes identifying a first portion of the third data that is associated with data transmission by a second UT. The method further includes identifying a second portion of the third data that is associated with data transmission by the first UT.Type: GrantFiled: December 7, 2021Date of Patent: October 17, 2023Assignee: Amazon Technologies, Inc.Inventors: Pengfei Xia, Duong Anh Hoang, Timothy Leo Gallagher, Rod G. Fleck
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Publication number: 20230325864Abstract: A method and apparatus may be used to support coordinated and cooperative sectorized transmissions. Power control and clear channel assessment for sectorized transmissions may be used, along with sectorized beacon and associated procedures. Transmissions in a network may be protected by a first access point (AP) sending an omni-directional transmission and a beamformed or sectorized transmission to a station (STA), an overlapping basic service set (OBSS) confirming a spatially orthogonal (SO) condition based on the omni-directional transmission, and a second AP monitoring the omni-directional transmission and confirming the SO condition. The STA may be configured to receive a request-to-send (RTS) frame indicating data is available for transmission, and transmit a cooperative sectorized (CS) clear-to-send (CTS) frame indicating an ability for multiple AP reception.Type: ApplicationFiled: June 12, 2023Publication date: October 12, 2023Applicant: INTERDIGITAL PATENT HOLDINGS, INC.Inventors: Pengfei Xia, Oghenekome Oteri, Hanqing Lou, Nirav B. Shah, Monisha Ghosh, Robert Olesen
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Publication number: 20230291637Abstract: A method for operating an access node includes generating a configuration message including information specifying a set of reference signals of a first reference signal type and a set of reference signals of a second reference signal type used to identify a new beam, and information specifying random access channel resources allocated for transmitting preamble sequences, wherein each random access channel resource is associated with a reference signal of the first reference signal type, sending, to one or more user equipments (UEs), the configuration message, receiving, from a UE, a preamble sequence on one of the random access channel resources, and determining an identity of the UE in accordance with the preamble sequence and the one of the random access channel resources.Type: ApplicationFiled: March 23, 2023Publication date: September 14, 2023Inventors: Pengfei Xia, Bin Liu
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Patent number: 11757481Abstract: Technologies directed to co-channel interference detection using a signal correlation test are described. One method includes receiving a radio frequency (RF) signal and generating digital sample corresponding to the RF signal. The method further includes determining a first correlation coefficient using the digital samples, a first value, and a second value. The first value corresponds to a signal lag parameter and the second value corresponds to a cyclic frequency parameter. The method further includes determining a second correlation coefficient using the digital samples, the first value, and a third value corresponding to the cyclic frequency parameter. The second value and the third value are multiples of a fourth value. The method further includes determining, using the first correlation coefficient and the second correlation coefficient, that first RF signal comprises a first portion from a second communication device and a second portion from a third communication device.Type: GrantFiled: December 7, 2021Date of Patent: September 12, 2023Assignee: Amazon Technologies, Inc.Inventors: Pengfei Xia, Timothy Leo Gallagher, Danijela Cabric
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Patent number: 11743879Abstract: A method for operating a user equipment includes receiving a first frame on a first channel associated with a first beam identified during a beam failure recovery procedure, and determining that an assumed quasi-co-located relationship exists between the first channel and the first beam, and based thereon, decoding the first frame in accordance with a first reference signal on the first channel and using a first spatial domain receive filter that was used to decode the first beam.Type: GrantFiled: May 23, 2018Date of Patent: August 29, 2023Assignee: Futurewei Technologies, Inc.Inventors: Young Hoon Kwon, Pengfei Xia, Bin Liu
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Patent number: 11736153Abstract: A method and apparatus may be used in multi-AP and multi-wireless transmit/receive unit joint transmissions. The apparatus may be configured to transmit a joint transmission request on a first medium, and receive a joint transmission response on the first medium. In response, the apparatus my perform a joint transmission negotiation on a second medium and transmit data on the second medium based on the joint transmission negotiation. The apparatus may be configured to perform coordinated sectorized or beamformed transmissions through access point (AP)/PCP negotiations. The apparatus may provide an indication of support for joint transmission and coordinated sectorized or beamformed transmissions. The method and apparatus may also implement multi-AP/WTRU request-to-send (RTS)/clear-to-send (CTS) procedures. The apparatus may be configured to perform coordinated sectorized or beamforming grouping.Type: GrantFiled: February 22, 2022Date of Patent: August 22, 2023Assignee: INTERDIGITAL PATENT HOLDINGS, INC.Inventors: Xiaofei Wang, Guodong Zhang, Oghenekome Oteri, Pengfei Xia
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Patent number: 11729810Abstract: A method for operating an access node includes sending to a user equipment (UE) configuration information of a discontinuous reception (DRX) mode including DRX-ON periods for sending physical downlink control channels (PDCCHs) to the UE, and configuration information for an uplink transmission associated with a DRX-ON period, the uplink transmission is configured for beam quality confirmation of a PDCCH transmitted during the DRX-ON period associated with the uplink transmission, receiving the uplink transmission, wherein a receive beam used to receive the uplink transmission and a transmit beam used to transmit the PDCCH transmitted during the DRX-ON period are beam correspondent, and determining a beam quality measurement for a channel between the access node and the UE in accordance with the received uplink transmission.Type: GrantFiled: September 19, 2018Date of Patent: August 15, 2023Assignee: Huawei Technologies Co., Ltd.Inventors: Pengfei Xia, Young Hoon Kwon, Bin Liu
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Patent number: 11722916Abstract: A computer-implemented method includes sending, by an access node, to a user equipment (UE) configuration information for a beam quality reference signal (BQRS) that is associated with a discontinuous reception (DRX)-ON period used for sending a physical downlink control channel (PDCCH) to the UE, wherein the BQRS has a spatial quasi-collocated (QCL) relationship with either the PDCCH or a demodulation reference signal (DMRS) of the PDCCH. The method further includes sending, by the access node, the BQRS to the UE.Type: GrantFiled: September 24, 2018Date of Patent: August 8, 2023Assignee: Huawei Technologies Co., Ltd.Inventors: Pengfei Xia, Young Hoon Kwon, Bin Liu
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Patent number: 11711187Abstract: Embodiments of this disclosure provide techniques for receiving reference signals by a user equipment (UE) from a base station in a downlink channel, as well as transmitting a linear combination index from the UE to the base station. In particular, the linear combination index identifies a combination of beams selected from a set of beams in accordance with the RS.Type: GrantFiled: July 6, 2021Date of Patent: July 25, 2023Assignee: Futurewei Technologies, Inc.Inventors: Bin Liu, Pengfei Xia
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Patent number: 11696336Abstract: A method for operating an access node includes receiving a first random access preamble in a first random access resource, wherein the first random access preamble and the first random access resource at least partially identifies a first beam selected by a user equipment (UE), and wherein the first random access resource is one of a plurality of random access resources assigned to the UE, and determining that first additional information associated with the first beam is needed, and based thereon, sending a first message responsive to the first random access preamble, the first message including a first information set to request the additional information associated with the first beam, and receiving a second message including the first additional information associated with the first beam.Type: GrantFiled: April 30, 2021Date of Patent: July 4, 2023Assignee: Futurewei Technologies, Inc.Inventors: Young Hoon Kwon, Pengfei Xia, Bin Liu
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Patent number: 11683215Abstract: A method for operating an access node includes generating a configuration message including information specifying a set of reference signals of a first reference signal type and a set of reference signals of a second reference signal type used to identify a new beam, and information specifying random access channel resources allocated for transmitting preamble sequences, wherein each random access channel resource is associated with a reference signal of the first reference signal type, sending, to one or more user equipments (UEs), the configuration message, receiving, from a UE, a preamble sequence on one of the random access channel resources, and determining an identity of the UE in accordance with the preamble sequence and the one of the random access channel resources.Type: GrantFiled: March 16, 2020Date of Patent: June 20, 2023Assignee: Futurewei Technologies, Inc.Inventors: Pengfei Xia, Bin Liu
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Patent number: 11678318Abstract: A method and apparatus may be used to support coordinated and cooperative sectorized transmissions. Power control and clear channel assessment for sectorized transmissions may be used, along with sectorized beacon and associated procedures. Transmissions in a network may be protected by a first access point (AP) sending an omni-directional transmission and a beamformed or sectorized transmission to a station (STA), an overlapping basic service set (OBSS) confirming a spatially orthogonal (SO) condition based on the omni-directional transmission, and a second AP monitoring the omni-directional transmission and confirming the SO condition. The STA may be configured to receive a request-to-send (RTS) frame indicating data is available for transmission, and transmit a cooperative sectorized (CS) clear-to-send (CTS) frame indicating an ability for multiple AP reception.Type: GrantFiled: April 12, 2022Date of Patent: June 13, 2023Assignee: InterDigital Patent Holdings, Inc.Inventors: Pengfei Xia, Oghenekome Oteri, Hanqing Lou, Nirav B. Shah, Monisha Ghosh, Robert Olesen
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Patent number: 11659496Abstract: Methods and apparatuses are described herein for adapting clear channel assessment (CCA) thresholds with or without Transmit Power Control (TPC) are disclosed. An IEEE 802.11 station (STA) may dynamically calculate a STA specific transmit power control (TPC) value and a STA specific clear channel assessment (CCA) value based on a target TPC parameter and a target CCA parameter. The target TPC parameter and the target CCA parameter may be received from an IEEE 802.11 cluster head configured to control TPC and CCA for a plurality of STAs associated with the BSS. The target TPC parameter and the target CCA parameter also may be related. The STA may then determine whether a carrier sense multiple access (CSMA) wireless medium of a wireless local area network (WLAN) basic service set (BSS) is occupied or idle based on the STA specific CCA value.Type: GrantFiled: June 1, 2021Date of Patent: May 23, 2023Assignee: InterDigital Patent Holdings, Inc.Inventors: Oghenekome Oteri, Pengfei Xia, Xiaofei Wang, Hanqing Lou, Monisha Ghosh, Robert L. Olesen, Nirav B. Shah, Frank La Sita
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Publication number: 20230145663Abstract: A method implemented by an access node includes transmitting, by the access node, a wake up signal (WUS) prior to a control channel occurring within an associated discontinuous reception (DRX) ON period, wherein the WUS is transmitted using a first beam, and transmitting, by the access node, the control channel during the associated DRX ON period, wherein the control channel is transmitted on a control resource set (CORESET) using a second beam, wherein the first and second beams share a common quasi-colocated (QCL) source.Type: ApplicationFiled: January 6, 2023Publication date: May 11, 2023Inventors: Young Hoon Kwon, Pengfei Xia
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Publication number: 20230129257Abstract: A computer-implemented method for sidelink beam sweeping includes transmitting, by a first electronic device and to a base station, uplink sounding reference signals (UL-SRSs) on N UL-SRS resources using N transmit beam patterns, where N is an integer greater than 1, receiving, by the first electronic device and from the base station, information associated with sidelink beam management (SL-BM), where the information associated with SL-BM indicates SL resources allocated to the first electronic device and beam pattern indices indicating transmit beam patterns for SL-BM, and transmitting, by the first electronic device and to a second electronic device, one or more sidelink beam management reference signals (SL-BMRSs), based on the received information associated with SL-BM, using one or more of the indicated transmit beam patterns.Type: ApplicationFiled: February 14, 2020Publication date: April 27, 2023Inventors: Pengfei Xia, Bin Liu, Young Hoon Kwon
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Patent number: 11637611Abstract: A method includes receiving, from a second device, a signal using each beam of a first subset of beams of a beam set arranged in a layout, measuring a beam quality of the signal received using each beam of the first subset of beams, estimating a beam quality of the signal for each beam of a second subset of beams of the beam set, the first subset of beams and the second subset of beams comprising different beams, and the estimating being in accordance with the measured signal quality of the first subset of beams, selecting a beam from the beam set, selecting the beam being in accordance with the measured beam quality and the estimated beam quality, and communicating, with the second device, using the beam.Type: GrantFiled: November 7, 2019Date of Patent: April 25, 2023Assignee: Huawei Technologies Co., Ltd.Inventors: Pengfei Xia, Bin Liu, Young Hoon Kwon
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Publication number: 20230117103Abstract: A method for receiving device position determination includes receiving beamformed position reference signals (BF-PRSs) on a plurality of communications beams from at least two transmitting devices in accordance with a BF-PRS configuration, making at least one observed time difference of arrival (OTDOA) measurement in accordance with the BF-PRSs on the plurality of communications beams, and transmitting OTDOA feedback including the at least one OTDOA measurement.Type: ApplicationFiled: October 19, 2022Publication date: April 20, 2023Inventors: Richard Stirling-Gallacher, Nathan Edward Tenny, Bin Liu, Pengfei Xia, Aimin Justin Sang, Jian Luo
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Publication number: 20230101442Abstract: A method for sidelink beam acquisition for device to device (D2D) communication includes calculating, by a base station, one or more first directions, where the one or more first directions are directions of a second electronic device located relative to a first electronic device; calculating, by the base station, one or more second directions, where the one or more second directions are directions of the first electronic device located relative to the second electronic device; transmitting, by the base station and to the first electronic device, the one or more first directions; and transmitting, by the base station and to the second electronic device, the one or more second directions.Type: ApplicationFiled: March 13, 2020Publication date: March 30, 2023Inventors: Pengfei Xia, Bin Liu, Young Hoon Kwon
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Publication number: 20230094596Abstract: A computer-implemented method for wireless signal transmission and reception for device to device (D2D) communication includes obtaining, by a first electronic device, reference signal beam pattern information associated with multiple beam directions of a second electronic device, where the reference signal beam pattern information is stored in a beam pattern database (BPD) in the first electronic device, receiving or transmitting, between the first and second electronic devices, a plurality of reference signals in accordance with the reference signal beam pattern information, and determining, by the first electronic device, environment information surrounding the first electronic device and the second electronic device based on measurements of the reference signals, the obtained reference signal beam pattern information, and the BPD.Type: ApplicationFiled: February 19, 2020Publication date: March 30, 2023Inventors: Pengfei Xia, Bin Liu, Young Hoon Kwon
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Patent number: 11611965Abstract: When spatial quasi co-location is established between component carriers, beam management, e.g., beam configuration or reference signal configuration, of one component carrier may be performed based at least in part on beam management information of the other. Information specifying that component carriers or reference signals cross component carriers are spatially quasi co-located, or information about a SQCL group including spatially quasi co-located carriers, may be transmitted to a UE, e.g., using broadcast signaling, radio resource control (RRC) signaling, a media access control-control element (MAC-CE), downlink control information (DCI) signaling, or a combination thereof.Type: GrantFiled: February 16, 2021Date of Patent: March 21, 2023Assignee: Futurewei Technologies, Inc.Inventors: Bin Liu, Pengfei Xia