Patents by Inventor Li Chai

Li Chai 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: 20220232495
    Abstract: Disclosed are a method and device for scheduling and transmission, a terminal, a communication node, and a storage medium. The method comprises: a first communication node acquiring clock information; and sending m types of clock information to a terminal on the basis of the acquired clock information, where m is greater than or equal to 1.
    Type: Application
    Filed: April 26, 2020
    Publication date: July 21, 2022
    Inventors: Li CHAI, Min WU
  • Publication number: 20220210782
    Abstract: This application relates to the field of system information transmission technologies, and in particular, to a method for transmitting system information and an apparatus. A related method for receiving system information includes: determining, by a terminal device, resource information, where the terminal device uses one beam to perform communication on a resource indicated by the resource information; and receiving, by the terminal device based on the resource information, system information on the resource indicated by the resource information. According to the method for transmitting system information and the apparatus in this application, a probability of successfully receiving system information by a terminal device can be increased.
    Type: Application
    Filed: March 18, 2022
    Publication date: June 30, 2022
    Inventors: Li Chai, Jian Zhang, Kunpeng Liu
  • Patent number: 11330602
    Abstract: A wireless communication method, a terminal device, and a network device are provided. The terminal device receives a first indication message sent by the network device, so that the terminal device may select, according to the first indication message, to fly in an appropriate cell. This ensures communication between the terminal device and the network device. The method includes: receiving, by the terminal device, the first indication message sent by the network device. The first indication message includes at least one of: flight zone restriction information of at least one cell, flight altitude information of the at least one cell, flight speed information of the at least one cell, volume information of a flight device, and weight information of the flight device, and/or the first indication message includes information about a flight transmission characteristic supported by the at least one cell.
    Type: Grant
    Filed: November 5, 2019
    Date of Patent: May 10, 2022
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Xun Tang, Wei Quan, Jian Zhang, Li Chai, Jinhua Miao
  • Patent number: 11310684
    Abstract: A signal processing method and an apparatus are provided, and the method includes: measuring, by a terminal device, signal quality of one or more cells, to generate a first measurement report; and sending, by the terminal device, the first measurement report to a first base station, where the first measurement report includes measurement information of the one or more cells so that the first base station sends the first measurement report to a second base station, and the first base station implements, by using the first measurement report, uplink interference cancellation or downlink interference cancellation for the terminal device.
    Type: Grant
    Filed: November 4, 2019
    Date of Patent: April 19, 2022
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Xun Tang, Wei Quan, Jian Zhang, Li Chai, Jinhua Miao
  • Patent number: 11304054
    Abstract: A communication method and a device, the method including obtaining, by a terminal device, a security key, where the terminal device performs the obtaining while the terminal device is in a state in which the terminal device has disconnected a radio resource control (RRC) connection from a first network device, and in which the terminal device retains context information for a context, in the first network device, of the terminal device, and sending, by the terminal device, a first message to a second network device, where the first message includes an identifier of the terminal device and at least one of encrypted uplink data or encrypted signaling, the at least one of encrypted uplink data or encrypted signaling is encrypted by using the security key, and where the second network device is different from the first network device.
    Type: Grant
    Filed: September 23, 2019
    Date of Patent: April 12, 2022
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Li Chai, Jian Zhang, Bingzhao Li, Wei Quan
  • Patent number: 11284395
    Abstract: This application relates to the field of system information transmission technologies, and in particular, to a method for transmitting system information and an apparatus. A related method for receiving system information includes: determining, by a terminal device, resource information, where the terminal device uses one beam to perform communication on a resource indicated by the resource information; and receiving, by the terminal device based on the resource information, system information on the resource indicated by the resource information. According to the method for transmitting system information and the apparatus in this application, a probability of successfully receiving system information by a terminal device can be increased.
    Type: Grant
    Filed: February 5, 2019
    Date of Patent: March 22, 2022
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Li Chai, Jian Zhang, Kunpeng Liu
  • Patent number: 11265770
    Abstract: A communication method and apparatus are provided. The method can be performed by a first access network device. Under the method, first data transmission information sent by a terminal device can be received. The first data transmission information carries a first identifier and uplink data, and the first identifier includes an identifier identifying an anchor access network device and an identifier identifying the terminal device in the anchor access network device. First processing can be performed on the received uplink data based on channel configuration information of the terminal device. The first processing includes at least one of: physical layer processing, medium access control layer processing, or radio link control layer processing. The first processing includes no decryption and/or integrity check. Second data transmission information can be sent. The second data transmission information carries the first identifier and uplink data obtained after the first processing.
    Type: Grant
    Filed: November 5, 2019
    Date of Patent: March 1, 2022
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Bingzhao Li, Wei Quan, Jian Zhang, Li Chai
  • Publication number: 20220061022
    Abstract: A method includes: determining, by a communications device, information about a target beam; determining a target monitoring occasion based on the information about the target beam and a mapping relationship between information about a beam and a monitoring occasion, where the target monitoring occasion is in a system information window, and the system information window is used for OSI; and monitoring downlink control information in the target monitoring occasion. This application is applicable to a process of information transmission between a network device and the communications device.
    Type: Application
    Filed: November 8, 2021
    Publication date: February 24, 2022
    Inventors: Lei Chen, Bingzhao Li, Li Chai
  • Patent number: 11172465
    Abstract: This application provides an information transmission method and an apparatus and relates to the field of communications technologies, to resolve a problem of power waste caused when a communications device blindly monitors downlink control information in all monitoring occasions. The method includes: determining, by a communications device, information about a target beam; determining a target monitoring occasion based on the information about the target beam and a mapping relationship between information about a beam and a monitoring occasion, where the target monitoring occasion is in a system information window, and the system information window is used for OSI; and monitoring downlink control information in the target monitoring occasion.
    Type: Grant
    Filed: September 24, 2019
    Date of Patent: November 9, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Lei Chen, Bingzhao Li, Li Chai
  • Patent number: 11153931
    Abstract: This application describes a data transmission method, a terminal device, and a network device. The method may include determining, by a medium access control (MAC) layer of a terminal device, a first MAC control element and a second MAC control element. The method may also include simultaneously transmitting, by the terminal device, the first MAC control element and the second MAC control element on different uplink transmission resources. The data transmission method, the terminal device, and the network device in embodiments of this application help to improve data transmission reliability.
    Type: Grant
    Filed: November 4, 2019
    Date of Patent: October 19, 2021
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Bin Xu, Zhenzhen Cao, Bingzhao Li, Li Chai, Wei Quan
  • Patent number: 11109357
    Abstract: A semi-persistent scheduling method includes: determining a semi-persistent scheduling (SPS) configuration parameter, where the SPS configuration parameter includes an SPS period length, symbol information, and an SPS activation command, where the SPS activation command is used to indicate a system frame number and a subframe number of a first time-frequency resource available for sending or receiving SPS data, and the symbol information is used to indicate a location of a symbol that is in a subframe and that is occupied by the first time-frequency resource; determining resource locations of time-frequency resources available for sending or receiving the SPS data based on the SPS period length, the symbol information, and the SPS activation command; and sending, by the network device, the SPS configuration parameter to a terminal device. Resource utilization of semi-persistent scheduling can be improved, and a transmission delay of the SPS data can be reduced.
    Type: Grant
    Filed: August 2, 2019
    Date of Patent: August 31, 2021
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Jinhua Miao, Wei Quan, Bin Xu, Li Chai, Jian Zhang
  • Patent number: 11082965
    Abstract: The method may include: after receiving, through a first interface or a second interface, resource allocation information of a neighboring cell of a serving cell in which UE is located, a network device may allocate a resource to the UE based on the resource allocation information of the neighboring cell, so as to prevent the UE from using a same resource as UE located in the neighboring cell, and reduce interference to the neighboring cell; or allocate, to the UE, a resource with relatively small interference to the UE, so as to reduce interference of the neighboring cell to the UE. The first interface is an interface that performs communication by using a UE-to-UE communications technology. The second interface is an interface that performs communication by using a UE-to-network device communications technology.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: August 3, 2021
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Li Chai, Hong Wang, Jian Zhang, Wei Quan, Zhenzhen Cao
  • Patent number: 11076399
    Abstract: A service transmission method is provided. A first base station, which establishes an RRC connection with a UE, sends a request message to a second base station which is at least one of base stations serving the UE, where the request message includes service information, where the service information includes QoS information of a service and/or configuration information of an RB, and the request message instructs the second base station to perform resource configuration according to service information. The first base station sends a configuration message to the UE, where the configuration message includes configuration list information of the RB and/or cell information of the offload base station.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: July 27, 2021
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Li Chai, Bo Lin, Liangliang Zhang
  • Publication number: 20210219104
    Abstract: Embodiments of this application disclose a positioning method and an apparatus, to reduce a quantity of transmission points, thereby reducing positioning calculation complexity. The method in the embodiments of this application includes: receiving, by a terminal, positioning assistance information sent by a positioning entity, where the positioning assistance information includes a cell identity of a cell in which a to-be-measured transmission point is located, an identity of the to-be-measured transmission point, and positioning reference signal configuration information of the to-be-measured transmission point; measuring, by the terminal, the to-be-measured transmission point based on the positioning assistance information, to obtain a measurement result, where the measurement result includes positioning reference signal information of the to-be-measured transmission point; and sending, by the terminal, the measurement result.
    Type: Application
    Filed: March 26, 2021
    Publication date: July 15, 2021
    Inventors: Lei CHEN, Bingzhao LI, Li CHAI
  • Publication number: 20210218516
    Abstract: The present disclosure relates to information processing methods, communications devices, systems, and storage medium. One example method includes generating, by a network device, first configuration information of an uplink reference signal, where the first configuration information includes a first mapping relationship between an uplink reference signal resource and first information, the first information is number information or index information about a downlink reference signal of a location measurement unit (LMU), and the LMU is different from the network device, and sending, by the network device, the first configuration information to a terminal.
    Type: Application
    Filed: March 26, 2021
    Publication date: July 15, 2021
    Inventors: Lei CHEN, Bingzhao LI, Li CHAI, Xuelong WANG
  • Publication number: 20210212047
    Abstract: Embodiments of the present disclosure provide a communication method, and a communications apparatus and system. User equipment can communicate with the network device by using a plurality of beams, the plurality of beams include a first beam and at least one second beam, the first beam is a serving beam used by the user equipment to listen to control information, and the second beam is a beam other than the serving beam. The method includes: determining, by the user equipment, that the serving beam is blocked; and obtaining, by the user equipment, a first message from the network device by using the first beam or the second beam.
    Type: Application
    Filed: March 23, 2021
    Publication date: July 8, 2021
    Inventors: Xun Tang, Li Chai
  • Patent number: 11039418
    Abstract: Example methods for processing a system message and network devices are described herein. One example method includes obtaining, by a user terminal, indication information, wherein the indication information indicates that a system message of a cell cluster has changed or whether a system message of a cell cluster has changed, wherein the cell cluster comprises a set of at least one cell. The user terminal can then determine whether currently used information about the cell cluster needs to be updated. In some instances, obtaining the indication information comprises obtaining a system information update message. In those instances, determining whether currently used information about the cell cluster needs to be updated can include updating the currently used information about the cell cluster or updating a system message of a cell in the currently used cell cluster based on the indication information in the system information update message.
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: June 15, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Li Chai, Jian Zhang, Wei Quan
  • Publication number: 20210168810
    Abstract: This application provides a communication method, an apparatus, and a communications system, and relates to the field of communications technologies. A terminal device receives system information broadcast by a network device, and determines a bandwidth of an initial BWP based on the system information. The system information includes first indication information. The first indication information indicates that the bandwidth of the initial BWP used for the terminal device is a first bandwidth or a second bandwidth. The first bandwidth is indicated by using a first bandwidth parameter carried in the system information. The second bandwidth is a bandwidth of a CORESET 0. The CORESET 0 is used to schedule the system information.
    Type: Application
    Filed: February 9, 2021
    Publication date: June 3, 2021
    Inventors: Lei Chen, Bingzhao Li, Zhenzhen Cao, Li Chai
  • Publication number: 20210160932
    Abstract: A random access preamble sequence generation method and user equipment are provided. The method includes the following: when receiving first notification signaling sent by a base station, determining, by UE, to calculate a cyclic shift value by using a first solution; obtaining a first logical root sequence number, and determining a root sequence based on the first logical root sequence number; and generating a random access preamble sequence based on the root sequence and the cyclic shift value, where the first solution is a solution of calculating the cyclic shift value when a Doppler shift of the UE is less than a first preset value and greater than a second preset value, the first preset value is less than twice of a physical random access channel (PRACH) subcarrier spacing, the second preset value is greater than the PRACH subcarrier spacing.
    Type: Application
    Filed: February 4, 2021
    Publication date: May 27, 2021
    Inventors: Yue ZHAO, Li CHAI, Zhiheng GUO, Xingqing CHENG
  • Patent number: 10999143
    Abstract: Disclosed are a cell measurement method, a cell resource sharing method, and a related device. The cell measurement method includes: a user equipment receives a measurement configuration message sent by a base station, wherein the measurement configuration message comprises at least one physical cell identity and CSI-RS configuration information corresponding to a measured cell, and wherein the physical cell identity is used to indicate the measured cell; measuring the CSI-RS corresponding to the measured cell according to the CSI-RS configuration information, and obtaining a measurement result of the measuring; sending the obtained measurement result of the measured cell and measurement object information of the measured cell to the base station via a measurement report. The technical solution provided by the present disclosure can effectively improve the accuracy of the measurement result, and enable the base station to distinguish different measurement results corresponding to different cells.
    Type: Grant
    Filed: January 16, 2020
    Date of Patent: May 4, 2021
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventor: Li Chai