Patents by Inventor Liwen Zhang

Liwen Zhang 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: 12267813
    Abstract: In one example method, an access network device sends a plurality of pieces of time division multiplexing mode information to a terminal, where each of the plurality of pieces of time division multiplexing mode information indicates one time division multiplexing mode, and in the time division multiplexing mode, time division multiplexing is performed on a first uplink time domain resource and a second uplink time domain resource, the first uplink time domain resource is an uplink time domain resource of a first carrier, and the second uplink time domain resource is an uplink time domain resource of a second carrier. The access network device sends first information to the terminal, where the first information activates one of the plurality of time division multiplexing modes indicated by the plurality of pieces of time division multiplexing mode information.
    Type: Grant
    Filed: November 24, 2021
    Date of Patent: April 1, 2025
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Fang Zhang, Quanzhong Gao, Liwen Zhang
  • Publication number: 20250097773
    Abstract: This application relates to communication methods and apparatuses. An access network device determines that a first beam of a first cell meets a load migration condition, and the access network device evaluates performance of the first terminal device on N candidate beams based on information about the N candidate beams. When determining, based on the result of the evaluation, that a first candidate beam satisfies a performance requirement in the N candidate beams, the access network device migrates the first terminal device to a second cell to which the first candidate beam belongs.
    Type: Application
    Filed: November 27, 2024
    Publication date: March 20, 2025
    Inventors: Liwen ZHANG, Zhou XU, Yingrui LI
  • Patent number: 12256380
    Abstract: The present disclosure relates to communication methods and apparatus. In one example method, a terminal sends, to a network device, a quantity of radio frequency channels supported on each of a plurality of carriers when the terminal performs uplink transmission on the plurality of carriers in time division multiplexing (TDM) mode. The terminal reports, to the network device, a quantity of radio frequency channels used on each carrier when the terminal performs uplink transmission in TDM mode, so that the network device can configure, for the terminal based on an actual capability of the terminal, the quantity of radio frequency channels used on each carrier in TDM mode.
    Type: Grant
    Filed: November 24, 2021
    Date of Patent: March 18, 2025
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Zhou Xu, Liwen Zhang
  • Publication number: 20250048375
    Abstract: Example uplink switching methods and apparatus are described. One example method include performing switching between a supplementary uplink (SUL) and a normal (NUL), where a switching time period for the switching between the SUL and the NUL is longer than 0 microseconds. Therefore, the SUL and the NUL can share a radio frequency channel so that the shared radio frequency channel can be switched between the SUL and the NUL.
    Type: Application
    Filed: August 14, 2024
    Publication date: February 6, 2025
    Inventors: Liwen ZHANG, Zhou XU, Yong WANG, Quanzhong GAO
  • Patent number: 12207098
    Abstract: A spectrum resource determining method includes obtaining sharing information. The sharing information indicates that N first cells and one second cell share a first frequency band, a coverage area of each first cell among the N first cells overlaps a coverage area of the second cell, and N is an integer greater than 1. The method also includes determining a spectrum resource of each first cell among the N first cells in the first frequency band and a first spectrum resource of the second cell. The first spectrum resource is located in the first frequency band, and the first spectrum resource does not overlap the spectrum resource of each first cell among the N first cells in the first frequency band.
    Type: Grant
    Filed: November 19, 2021
    Date of Patent: January 21, 2025
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Quan Ge, Liwen Zhang, Ning He, Zhihua Liu, Quanzhong Gao
  • Publication number: 20250016697
    Abstract: This application provides example communication methods and apparatuses, and example computer-readable storage medium. One example method includes receiving a first timing advance (TA) value from a network device, where the first TA value is determined based on a timing advance offset and a distance between the network device and a terminal device. A first uplink signal is sent to the network device based on the first TA value, where boundaries of uplink frames corresponding to the first uplink signal and a second uplink signal in the network device are the same, and the first uplink signal and the second uplink signal are signals of different systems.
    Type: Application
    Filed: September 25, 2024
    Publication date: January 9, 2025
    Inventors: Zhou XU, Liwen ZHANG, Huan LI
  • Patent number: 12137463
    Abstract: A radio frequency capability configuration method and an apparatus, the method including sending, by a network device, to a terminal, configuration information configuring M sets of radio frequency capabilities, where each set of radio frequency capabilities includes one or more radio frequency capabilities on one or more carriers, where a radio frequency capability on each carrier of the one or more carriers comprises a quantity of multiple-input multiple-output (MIMO) layers, and where M is an integer greater than 1, and sending, by the network device, to the terminal, first indication information to the terminal, where the first indication information indicates a set of radio frequency capabilities in the M sets of radio frequency capabilities.
    Type: Grant
    Filed: December 3, 2021
    Date of Patent: November 5, 2024
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Zhou Xu, Liwen Zhang
  • Publication number: 20240349354
    Abstract: An access network device sends resource information to a terminal device, where the resource information includes information about N uplink resources and information about M downlink resources, and N and M are integers greater than or equal to 2. The terminal device sends a random access request to the access network device using one of the N uplink resources (namely, a first resource). Correspondingly, the access network device may receive the random access request from the terminal device over the first resource, and may send a random access response to the terminal device using one of the M downlink resources (namely, a second resource).
    Type: Application
    Filed: June 21, 2024
    Publication date: October 17, 2024
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Zhou XU, Liwen ZHANG
  • Patent number: 12117508
    Abstract: A system for reconstructing a magnetic particle image based on adaptive optimization of regularization terms includes: a MPI device for scanning an imaging object to acquire a voltage response signal; a signal processor for constructing a system matrix; and a control processor for reconstructing the magnetic particle image based on an arbitrarily selected regularization term, inputting the reconstructed magnetic particle image to a regularization-term adaptive optimization neural network model for enhancement processing, taking the enhanced magnetic particle image as a first image, and calculating a loss value between the first image and an initial image to acquire a final reconstructed magnetic particle image. The system adopts a neural network model-based automatic learning approach, instead of the approach of manually selecting regularization terms and adjusting parameters, to improve the reconstruction efficiency and quality of the magnetic particle image.
    Type: Grant
    Filed: June 16, 2024
    Date of Patent: October 15, 2024
    Assignee: INSTITUTE OF AUTOMATION, CHINESE ACADEMY OF SCIENCES
    Inventors: Jie Tian, Zechen Wei, Hui Hui, Liwen Zhang, Xin Yang, Tao Zhu
  • Publication number: 20240314752
    Abstract: This application provides a communication method and apparatus. The method includes: A network device sends a first signal to a first terminal device in a first frequency band and a second frequency band. A frequency band of a first carrier includes the first frequency band and the second frequency band, and the first carrier is a carrier of a first cell accessed by the first terminal device. The network device sends a second signal to a second terminal device in a third frequency band. A frequency band of a second carrier includes the third frequency band and the second frequency band, a root sequence for generating the first signal is the same as a root sequence for generating the second signal, and the second carrier is a carrier of a second cell accessed by the second terminal device.
    Type: Application
    Filed: May 24, 2024
    Publication date: September 19, 2024
    Inventors: Liwen Zhang, Zhou Xu, Hong Zhu
  • Patent number: 12096447
    Abstract: Example uplink switching methods and apparatus are described. One example method include performing switching between a supplementary uplink (SUL) and a normal (NUL), where a switching time period for the switching between the SUL and the NUL is longer than 0 microseconds. Therefore, the SUL and the NUL can share a radio frequency channel so that the shared radio frequency channel can be switched between the SUL and the NUL.
    Type: Grant
    Filed: May 19, 2021
    Date of Patent: September 17, 2024
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Liwen Zhang, Zhou Xu, Yong Wang, Quanzhong Gao
  • Publication number: 20240259882
    Abstract: This application discloses a method including: A network device receives first channel quality information corresponding to a first bandwidth and second channel quality information corresponding to an aggregated bandwidth from a terminal device; determines interference experienced by the terminal device when the terminal device accesses the aggregated bandwidth based on the first channel quality information and the second channel quality information; and sends bandwidth configuration information to the terminal device based on the interference. The first channel quality information is sent by the terminal device when the terminal device accesses the first bandwidth, and the second channel quality information is sent by the terminal device when the terminal device accesses the aggregated bandwidth. The aggregated bandwidth is obtained by aggregating at least the first bandwidth and a second bandwidth. A spectrum of a third bandwidth is spaced between a spectrum of the first bandwidth and the second bandwidth.
    Type: Application
    Filed: April 10, 2024
    Publication date: August 1, 2024
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Liwen Zhang, Zhou Xu, Shuangshuang Ju
  • Publication number: 20240250783
    Abstract: Embodiments of this application disclose a communication method and a related product, and may be applied to the communication field in the field of electronic technologies. The communication method includes: performing transmission of first-type data via a primary carrier cell (PCC), and performing transmission of second-type data via a secondary carrier cell (SCC), where the first-type data includes control plane data, and the second-type data includes user plane data; or the first-type data includes uplink data, and the second-type data includes downlink data; or the first-type data includes downlink data, and the second-type data includes uplink data. This application may reduce communication resource waste, and improve communication resource utilization.
    Type: Application
    Filed: April 2, 2024
    Publication date: July 25, 2024
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Limin Xia, Yan Cheng, Qing Pan, Hao Xu, Nianwei Cao, Liwen Zhang
  • Patent number: 12035395
    Abstract: In an embodiment a method includes, after establishing a radio resource control (RRC) connection to an access network device on a first supplementary uplink SUL, receiving configuration information of a second (SUL) from the access network device and initiating random access on the second SUL, wherein a frequency of the second SUL is different from a frequency of the first SUL.
    Type: Grant
    Filed: December 10, 2021
    Date of Patent: July 9, 2024
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Quan Ge, Liwen Zhang, Zhou Xu
  • Publication number: 20240172205
    Abstract: This application provides a carrier configuration method and a communication apparatus. The method may include: a terminal device accesses a first cell by using a control channel resource of a first carrier. The terminal device receives first carrier configuration information in the first cell. The first carrier configuration information is used to change a carrier of the terminal device from the first carrier to a second carrier in the first cell. The first carrier and the second carrier share the control channel resource, and include different spectrum resources. According to this application, spectrum resource utilization of the first cell can be improved.
    Type: Application
    Filed: February 2, 2024
    Publication date: May 23, 2024
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Hong ZHU, Zhou XU, Liwen ZHANG
  • Publication number: 20240020795
    Abstract: A method for acquiring a capsule seam image includes: acquiring a first image component, where the first image component includes an image component of a capsule seam in a preset channel; in the first image component, the image component of the capsule seam in the preset channel has step change; performing a highlighting process on the first image component according to an insertion direction from the capsule cap to the capsule body to obtain a second image component, where the second image component at least includes an enhanced capsule seam feature; and performing noise reduction and compensation on the second image component to obtain a target image component, where the target image component includes a complete outline of the capsule seam.
    Type: Application
    Filed: July 7, 2023
    Publication date: January 18, 2024
    Applicant: Aocheng Intelligence Technology (USA) Inc.
    Inventors: Jianyue PAN, Liwen ZHANG, Jie LI, Deyun REN
  • Publication number: 20230377110
    Abstract: Disclosed are a method and a device for processing an image, a storage medium, and a computing device. The method includes: acquiring a to-be-processed image, where the to-be-processed image at least includes a background and a pattern; converting the to-be-processed image into a first color space to obtain a first image component of the to-be-processed image in a first channel; converting the to-be-processed image into a second color space to obtain a second image component of the to-be-processed image in a second channel; and performing image fusion based on the first image component and the second image component to obtain a target image, where the pattern is similar to the background in terms of intensity in the target image.
    Type: Application
    Filed: May 15, 2023
    Publication date: November 23, 2023
    Applicant: Aocheng Intelligence Technology (USA) Inc.
    Inventors: Jianyue PAN, Liwen ZHANG, Deyun REN, Jie LI
  • Publication number: 20230267286
    Abstract: Provided are a translation model training method, a translation method, a device, and a storage medium, and relates to a field of computer technology, and in particular, to artificial intelligence fields such as natural language processing, machine translation and the like. The translation model training method includes: processing a sample document, to obtain an RST discourse structure tree in a dependency form of the sample document, a side in the RST discourse structure tree in the dependency form indicating an RST relationship in a discourse of the sample document; determining an attention mechanism of a translation model to be trained, based on the RST relationship in the RST discourse structure tree in the dependency form; and inputting the RST discourse structure tree in the dependency form and the sample document into the translation model to be trained for training, to obtain a trained translation model.
    Type: Application
    Filed: August 3, 2022
    Publication date: August 24, 2023
    Applicant: Beijing Baidu Netcom Science Technology Co., Ltd.
    Inventors: Liwen Zhang, Meng Sun, Zhongjun He, Zhi Li
  • Patent number: 11718953
    Abstract: A fabric and a leather product in which collagen fiber bundles form a network structure has a base yarn woven layer, and also has collagen fiber bundles. The collagen fiber bundles sheathed in the base yarn woven layer protrude on the surface of the base yarn woven layer, and the protruding collagen fiber bundles and their branches are interwoven to form a network structure, where a part of the branches in the collagen fiber bundle is sheathed on the base yarn so that at least one end of the branch protrudes from the base yarn braided layer. Leather products may include these fabrics and leather surface layers.
    Type: Grant
    Filed: March 15, 2019
    Date of Patent: August 8, 2023
    Assignee: GUANGDONG WUYUAN NEW MATERIAL TECHNOLOGY GROUP CO., LTD.
    Inventor: Liwen Zhang
  • Publication number: 20230239912
    Abstract: This application relates to the field of communication technologies and discloses methods and apparatuses for using an unlicensed spectrum. An example method includes: obtaining information about a target unlicensed frequency band, and transmitting, based on the information about the target unlicensed frequency band, a signal on a supplementary uplink (SUL), where a spectrum of the SUL includes the target unlicensed frequency band. The information about the target unlicensed frequency band includes one or more of the following information: reference signal received power (RSRP), reference signal received quality (RSRQ), and a signal to interference plus noise ratio (SINR).
    Type: Application
    Filed: March 28, 2023
    Publication date: July 27, 2023
    Inventors: Liwen ZHANG, Zhou XU, Xu WANG, Liangliang LI