Patents by Inventor Lei Wan

Lei Wan 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: 11729754
    Abstract: A first access network device determines a timing offset of a first carrier and a second carrier. The timing offset is an offset between timing of downlink communication of the first carrier and timing of uplink communication of the second carrier. The first carrier is a carrier using a first radio access technology (RAT), and the second carrier is an uplink frequency division duplex (FDD) carrier using the first RAT and a second RAT. The first access network device sends first indication information to a terminal. The first indication information indicates the timing offset, and the timing offset is used to determine the timing of the second carrier. Based on this scheme, the terminal can use a shared frequency band resource of LTE, thereby improving resource utilization.
    Type: Grant
    Filed: July 5, 2019
    Date of Patent: August 15, 2023
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Wei Sun, Lei Wan, Zhiheng Guo, Xingqing Cheng, Xinqian Xie
  • Publication number: 20230131840
    Abstract: Disclosed are a soft bistable magnetic actuator, a fabrication method thereof, a fatigue testing device, and an auto underwater vehicle. The method for fabricating the soft bistable magnetic actuator includes the following operations: casting a soft precursor by injection molding, wherein the soft precursor consists of a soft deformable portion and a soft peripheral portion surrounded, the soft deformable portion is made of magnetic particles and polymer, and the soft peripheral portion is made of a magnetic particle, a mixture of organic liquid, and polymer; and extracting the organic liquid by an organic solvent shrinks the soft peripheral portion, buckles the soft deformable portion towards one side.
    Type: Application
    Filed: March 22, 2022
    Publication date: April 27, 2023
    Applicant: UNIVERSITY OF HONG KONG SHENZHEN FUTIAN RESEARCH INSTITUTE
    Inventors: Jian LU, Zhou CHEN, Lei WAN, Yunhu HE
  • Publication number: 20230128778
    Abstract: A method for forming a complex shape three-dimensional ceramic article by printing a first layer of a first material having a first fraction of first ceramic particles and a first fraction of a first polymeric ceramic precursor. A second layer is printed such that it is at least partially disposed on the first layer of a second material having a second fraction of second ceramic particles and a second fraction of a second polymeric ceramic precursor. A composite of the first layer and the second layer is heated at a temperature sufficient to decompose the first and second polymeric ceramic precursors and sinter the article. During the sintering process, the first and second layers with different fractions of ceramic particles undergo different degrees of shrinkage, resulting in a tuneable mismatch of the bilayer structure and accurately achieving a targeted geometry.
    Type: Application
    Filed: October 27, 2021
    Publication date: April 27, 2023
    Inventors: Jian LU, Lei WAN, Zhou CHEN, Zhengyi MAO
  • Patent number: 11631716
    Abstract: A memory device includes a cross-point array of spin-torque transfer MRAM cells. First rail structures laterally extend along a first horizontal direction. Each of the first rail structures includes a vertical stack including, from bottom to top, a first electrically conductive line, a reference layer having a fixed magnetization direction, and a tunnel barrier layer. Second rail structures laterally extend along a second horizontal direction. Each of the second rail structures includes a second electrically conductive line that overlies the first rail structures. A two-dimensional array of pillar structures is located between a respective one of the first rail structures and a respective one of the second rail structures. Each of the pillar structures includes a free layer having energetically stable magnetization orientations that are parallel or antiparallel to the fixed magnetization direction.
    Type: Grant
    Filed: September 17, 2021
    Date of Patent: April 18, 2023
    Assignee: WESTERN DIGITAL TECHNOLOGIES, INC.
    Inventors: Lei Wan, Jordan Katine, Tsai-Wei Wu
  • Publication number: 20230107190
    Abstract: A magnetic tunnel junction may include a platinum-containing layer including at least one of Ir, Hf or Ru in contact with a free layer, or a combination of a platinum layer and a Hf or Ir layer formed on opposite sides of a free layer.
    Type: Application
    Filed: December 13, 2022
    Publication date: April 6, 2023
    Inventors: Alan KALITSOV, Bhagwati PRASAD, Rajesh CHOPDEKAR, Lei WAN, Tiffany SANTOS
  • Publication number: 20230016462
    Abstract: A navigation method is disclosed. The method includes: obtaining first information including reference position information of the first device and/or satellite-related information, and determining a position of the first device based on the first information; and navigating the first device based on the position of the first device. In embodiments of this application, the first device obtains the first information, determines the position of the first device based on the first information, and then navigates the first device based on the position of the first device. The first information includes the reference position information of the first device and/or the satellite-related information, to help the first device quickly perform positioning or satellite searching, thereby improving efficiency of the first device in restoring navigation.
    Type: Application
    Filed: August 26, 2022
    Publication date: January 19, 2023
    Inventors: Lei WAN, Yong WU, Jianqin LIU, Mingchao LI
  • Patent number: 11546870
    Abstract: A method and an apparatus for transmitting or receiving information are provided. The method includes: receiving, by a terminal device, indication information from a network device, where the indication information indicates a timing adjustment parameter, the timing adjustment parameter is to be used by the terminal device to determine transmit timings on a first uplink carrier and a second uplink carrier, the first uplink carrier is an uplink carrier of a first radio access technology, and the second uplink carrier is an uplink carrier of a second radio access technology; and determining, by the terminal device, the timing adjustment parameter based on the indication information.
    Type: Grant
    Filed: May 15, 2020
    Date of Patent: January 3, 2023
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Zhiheng Guo, Xinqian Xie, Zukang Shen, Yi Long, Yang Zhao, Lei Wan, David Jean-Marie Mazzarese
  • Publication number: 20220412746
    Abstract: A positioning method and related apparatus are provided. The method includes obtaining information about a first coordinate system relative to a second coordinate system, wherein the first coordinate system is a coordinate system used by a measurement device, the second coordinate system is a coordinate system used by a map, and the information about the first coordinate system relative to the second coordinate system includes translation information and rotation information that are from the first coordinate system to the second coordinate system; obtaining, by the measurement device, a position of a measurement target in the first coordinate system through measurement; and determining a position of the measurement target in the second coordinate system based on the information about the first coordinate system relative to the second coordinate system and the position of the measurement target in the first coordinate system.
    Type: Application
    Filed: August 26, 2022
    Publication date: December 29, 2022
    Inventors: Yong WU, Lei WAN
  • Publication number: 20220405229
    Abstract: A PCIe-based communications method includes: a root complex writes identity information of a second node into a first node and writes routing table information into a third node, where the first node is a source node of first data, the second node is a destination node of the first data, and the third node is a node through which the first data arrives at the second node.
    Type: Application
    Filed: August 25, 2022
    Publication date: December 22, 2022
    Inventors: Lei WAN, Jiezuo ZHU, Xuehuan WANG, Pengxin BAO
  • Patent number: 11523400
    Abstract: A resource configuration method, apparatus and storage medium are disclosed. The method includes: sending, by a network device, first information to a terminal, where the first information is used by the terminal to determine not to send data and/or receive data on a first resource; and the first information includes first indication information used to indicate a first resource block (RB) and second indication information used to indicate a subcarrier occupied by the first resource on the first RB; or the first information includes third indication information used to indicate a first subcarrier, and the first subcarrier is used to determine the first resource. The resource configuration method and apparatus and the storage medium that are provided in the present disclosure can improve resource configuration flexibility.
    Type: Grant
    Filed: May 15, 2020
    Date of Patent: December 6, 2022
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Zhiheng Guo, Yongqiang Fei, Zukang Shen, Yi Long, Yang Zhao, Lei Wan, Wenping Bi
  • Publication number: 20220374385
    Abstract: A Peripheral Component Interconnect Express (PCIe) data transmission method includes a first node that obtains a transaction layer packet (TLP). The TLP includes a TLP header, a TLP extension header, and data. The TLP header includes a type field, an Fmt field, and a reserved bit, and where the type field, the Fmt field, the reserved bit, and the TLP extension header indicate a data type of the data and at least one piece of attribute information corresponding to the data type such that, information, the data type and the at least one piece of the attribute information, to transmit the data is indicated using the type field, the Fmt field, the reserved bit, and the TLP extension header in the TLP.
    Type: Application
    Filed: July 22, 2022
    Publication date: November 24, 2022
    Inventors: Lei Wan, Pengxin Bao
  • Publication number: 20220365895
    Abstract: A PCIe-based data transmission method and an apparatus are provided. The method includes the following: A first node obtains and sends a first TLP; and a switch receives the first TLP, and sends a second TLP to a second node. The first TLP includes a first TLP header and a first data payload, the second TLP includes a second TLP header and the first data payload, the first TLP header and the second TLP header are used to indicate a data type of the first data payload, and the data type of the first data payload includes at least one of audio, an image, control, data stream write, or security. The second node obtains the first data payload based on the data type of the first data payload. This helps reduce communication complexity in a high-speed communication scenario.
    Type: Application
    Filed: July 21, 2022
    Publication date: November 17, 2022
    Inventors: Lei WAN, Pengxin BAO
  • Publication number: 20220365899
    Abstract: A Peripheral Component Interconnect Express (PCIe)-based data transmission method includes that a first node obtains a transaction layer packet (TLP), where the TLP includes data, a type field, and at least one reserved bit, the type field and the at least one reserved bit indicate a first parameter set, and the first parameter set includes a data type of the data, and the first node sends the TLP to a second node.
    Type: Application
    Filed: July 21, 2022
    Publication date: November 17, 2022
    Inventors: Lei Wan, Pengxin Bao
  • Publication number: 20220368564
    Abstract: A Peripheral Component Interconnect Express (PCIe)-based data transmission method includes a first node that encapsulates first data into a first transaction layer packet (TLP) and sends the first TLP to a second node, where a TLP header of the first TLP includes a first field, the first field is used to indicate a data type of the first data, and the data type includes at least one of the following: an image type, a video type, a control type, a security type, and a stream write (SWRITE) type. In embodiments of this application, the first field in the TLP header is used to indicate information required for data transmission, for example, the data type, so that nodes can communicate with each other without using a root complex.
    Type: Application
    Filed: July 21, 2022
    Publication date: November 17, 2022
    Inventors: Lei Wan, Pengxin Bao
  • Publication number: 20220368781
    Abstract: A Peripheral Component Interconnect Express (PCIe)-based data transmission method and apparatus includes a first node that encapsulates data into a transaction layer packet (TLP) and then sends the TLP to a second node, where the TLP includes a packet header part, a first field and a second field of the packet header part that are used to indicate first encapsulation information, and the first encapsulation information includes a data type of the data and at least one encapsulation parameter corresponding to the data type.t The first field and the second field are used to indicate the information required for transmitting the data, so that the endpoints can communicate with each other even if the root is not used.
    Type: Application
    Filed: July 21, 2022
    Publication date: November 17, 2022
    Inventors: Lei Wan, Pengxin Bao
  • Publication number: 20220358074
    Abstract: A first node obtains a transaction layer packet (TLP); and the first node sends the TLP to a second node. The TLP includes data, a type field, and an extension header, and the type field and the extension header are used to indicate a data type of the data and one or more first attribute parameters corresponding to the data type.
    Type: Application
    Filed: July 21, 2022
    Publication date: November 10, 2022
    Inventors: Lei Wan, Pengxin Bao
  • Publication number: 20220358075
    Abstract: This application discloses a peripheral component interconnect express (PCIe)-based data transmission method and apparatus. The method includes: A first node encapsulates data into a transaction layer packet (TLP) and then sends the TLP to a second node. The TLP includes a packet header and an extension header. The packet header includes a first field and a second field. The first field, the second field, and the extension header are used to indicate first encapsulation information. The first encapsulation information includes a data type of the data and at least one encapsulation parameter corresponding to the data type. In some embodiments, the first field, the second field, and the extension header are used to indicate the information required for transmitting the data.
    Type: Application
    Filed: July 21, 2022
    Publication date: November 10, 2022
    Inventors: Lei WAN, Pengxin BAO
  • Publication number: 20220358070
    Abstract: A PCIe-based data transmission method and an apparatus are provided. The method includes the following: A first node obtains and sends a first TLP; and a switch receives the first TLP, and sends a second TLP to a second node. The first TLP includes a first TLP header and a first data payload, the second TLP includes a second TLP header and the first data payload, the first TLP header and the second TLP header are used to indicate a data type of the first data payload, and the data type of the first data payload includes at least one of audio, an image, control, data stream write, or security. The second node parses the first data payload based on the data type of the first data payload. This helps reduce communication complexity in a high-speed communication scenario.
    Type: Application
    Filed: July 21, 2022
    Publication date: November 10, 2022
    Inventors: Lei WAN, Pengxin BAO
  • Patent number: 11469852
    Abstract: A signal sending and receiving method and an apparatus is described. The method includes: receiving, by a terminal device, a first downlink signal from a network device in a first time unit of a first carrier, where the first carrier is a TDD carrier; determining, based on the first time unit, a second time unit used to send first feedback information for the first downlink signal on a second carrier, where the second carrier is an FDD uplink carrier; and sending the first feedback information to the network device on the second last symbol and/or the last symbol of the second time unit of the second carrier. Feedback information for a downlink signal on the first carrier is sent on the second carrier, so that a requirement of sending an uplink signal on the first carrier by the terminal device is reduced, thereby improving data transmission efficiency.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: October 11, 2022
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Zhiheng Guo, Lei Wan, Xinqian Xie
  • Patent number: RE49368
    Abstract: The present solution ensures that the UEs are able to make use of all the available reference signals that can be used in a cell for performing UE measurements, estimations or demodulations. That is achieved by indicating on a downlink common or shared channel, the MIMO mode settings associated with a specific network node. The indicated MIMO mode settings explicitly or implicitly indicate available common reference signals and/or dedicated reference signals to be used for said UE measurements, estimations or demodulations, which implies that measurements, estimations or demodulations can be performed based on said received indication.
    Type: Grant
    Filed: April 26, 2021
    Date of Patent: January 10, 2023
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Lei Wan, David Astely, Muhammad Kazmi