Patents by Inventor Xiaohan Wang

Xiaohan Wang 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: 20250226870
    Abstract: This application describes a channel information feedback method and a communication apparatus. The method includes a terminal device that receives configuration information sent by a network device, where the configuration information is used to configure a feedback mode of channel information. The terminal device may feed back current channel information to the network device when the feedback mode configured by using the configuration information is a first mode. The terminal device may alternatively feeds back predicted channel information to the network device when the feedback mode configured by using the configuration information is a second mode. System performance is therefore improved by the method described in this application because channel information feedback requirements in different scenarios can be met.
    Type: Application
    Filed: January 3, 2025
    Publication date: July 10, 2025
    Inventors: Xiang REN, Huangping JIN, Xiaohan WANG, Shibin GE, Yiling YUAN
  • Publication number: 20250219701
    Abstract: The present disclosure relates to methods and communications apparatuses. One example method include generating and sending a channel state information (CSI) report. The CSI report indicates M space-frequency units and a weighting coefficient of a part or all of the M space-frequency units, each of the M space-frequency units corresponds to one space domain vector and one frequency domain vector, and a weighted sum of the part or all of the M space-frequency units is usable for determining a precoding matrix of a plurality of frequency domain units.
    Type: Application
    Filed: March 21, 2025
    Publication date: July 3, 2025
    Inventors: Huangping JIN, Xiaohan WANG, Xiaoyan BI
  • Publication number: 20250212206
    Abstract: Example parameter configuration methods and apparatus are described. One example method includes generating an indication of a first mapping relationship, where the first mapping relationship indicates a reporting quantity L0 of spatial domain vectors, a reporting quantity M0 of frequency domain vectors, and a ratio between a quantity K0 and 2L0×M0. A preconfigured first mapping relationship group includes at least one mapping relationship, and the at least one mapping relationship includes the first mapping relationship. Both L0 and M0 are positive integers, and K0 represents a quantity of space-frequency vector pairs that are in two polarization directions and that are for constructing a precoding vector. The method further includes sending the indication of the first mapping relationship.
    Type: Application
    Filed: March 10, 2025
    Publication date: June 26, 2025
    Inventors: Xiaohan WANG, Huangping JIN, Xiaoyan BI
  • Publication number: 20250202560
    Abstract: The present invention provides a communication method and apparatus, to reduce CSI feedback overheads of a plurality of frequency bands. The method includes: inputting channel information of a first frequency band and channel information of K second frequency bands to a first encoder, to determine first channel state indication information corresponding to the first frequency band, where the channel information of the K second frequency bands is correlated with the channel information of the first frequency band, and K is a positive integer; and sending the first channel state indication information.
    Type: Application
    Filed: February 26, 2025
    Publication date: June 19, 2025
    Inventors: Jiaxuan CHEN, Haicun HANG, Xiaohan WANG
  • Publication number: 20250202561
    Abstract: Embodiments of this application provide a method and a communications apparatus. The method includes: sending first indication information that configures reporting bandwidth comprising a plurality of first-type frequency domain units on which reporting of a channel quality indicator (CQI) is based, the plurality of first-type frequency domain units comprise one or more first frequency domain units and one or more second frequency domain units, a granularity of a first frequency domain unit of the one or more first frequency domain units is less than a preconfigured first granularity, a granularity of a second frequency domain unit of the one or more second frequency domain units is the first granularity, and the first granularity is a frequency domain granularity preconfigured for reporting the CQI; and determining a plurality of second-type frequency domain units on which reporting of a precoding matrix indicator (PMI) is based under different conditions.
    Type: Application
    Filed: March 5, 2025
    Publication date: June 19, 2025
    Inventors: Xiaohan WANG, Yongping ZHANG, Huangping JIN, Xiang GAO, Xiaoyan BI
  • Publication number: 20250175229
    Abstract: This application provides a channel state information (CSI) feedback method and apparatus. In the method, configuration information indicates an association relationship between a plurality of frequency bands and a plurality of TRPs. The plurality of TRPs are associated with a first frequency band, and at least one TRP in the plurality of TRPs is further associated with a second frequency band. In this way, a terminal can feed back, in a targeted manner, CSI corresponding to the plurality of TRPs associated with each frequency band by using coherent joint transmission, for example, CSI corresponding to the plurality of TRPs on the first frequency band, and CSI corresponding to the at least one TRP on the second frequency band.
    Type: Application
    Filed: January 28, 2025
    Publication date: May 29, 2025
    Inventors: Didi Zhang, Xiaohan Wang, Huangping Jin, Mengying Ding, Jinlin Peng
  • Publication number: 20250141520
    Abstract: This application provides a channel state information (CSI) feedback method, a terminal device, and an access network device. The method includes: The terminal device sends first CSI to the access network device, where the first CSI includes indication information of a first basis of statistical eigen subspace, and a period for sending the first CSI is a first period. The terminal device sends second CSI to the access network device, where the second CSI includes indication information of a first linear combination coefficient, and a period for sending the second CSI is a second period. The terminal device updates a second basis to the first basis based on trigger information. The terminal device sends third CSI to the access network device, where the third CSI includes indication information of a second linear combination coefficient, and the third CSI is generated based on the updated second basis.
    Type: Application
    Filed: January 3, 2025
    Publication date: May 1, 2025
    Inventors: Ting LI, Xiaohan WANG, Huangping JIN
  • Patent number: 12284018
    Abstract: Example precoding vector indication methods, precoding vector determining methods, and communications apparatus to reduce feedback overheads are described. One example method includes generating and sending a channel state information (CSI) report by a terminal device. A network device determines a precoding vector of one or more frequency domain units based on the CSI report. The CSI report is used to indicate M space-frequency units and a weighting coefficient of a part or all of the M space-frequency units, each of the M space-frequency units corresponds to one beam vector and one frequency domain vector, and a weighted sum of the part or all of the M space-frequency units is used to determine the precoding vector of the one or more frequency domain units.
    Type: Grant
    Filed: April 27, 2021
    Date of Patent: April 22, 2025
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Huangping Jin, Xiaohan Wang, Xiaoyan Bi
  • Publication number: 20250125996
    Abstract: A reference signal indication method and an apparatus are disclosed. The method includes: a terminal device receives a plurality of pieces of first information from a plurality of network devices, where each of the plurality of pieces of first information indicates that at least one reference signal of the corresponding network device is for estimating a joint equivalent channel; receives a plurality of pieces of second information from the plurality of network devices, where each of the plurality of pieces of the second information indicates a port of the at least one reference signal; receives a plurality of pieces of coherent joint transmission data from the plurality of network devices, where one of the plurality of pieces of coherent joint transmission data includes at least one data stream and the at least one corresponding reference signal; and determines at least one joint equivalent channel based on the at least one reference signal of the plurality of network devices.
    Type: Application
    Filed: December 27, 2024
    Publication date: April 17, 2025
    Inventors: Hanqing WANG, Xiaohan WANG, Huangping JIN
  • Patent number: 12279267
    Abstract: This application provides a multi-downlink control information (DCI)-based transmission method. In the method, a terminal reports information about a capability of the terminal to support multi-DCI transmission, or a network device sends indication information of the types or the quantity of multi-DCI-based transmissions to a terminal. The network device performs resource scheduling on the terminal on this basis, thereby helping improve resource scheduling efficiency and reduce processing complexity of the terminal. In addition, this application also provides a corresponding solution for a scenario in which a carrier aggregation/dual connectivity (CA/DC) DCI-based transmission scenario coexists with multi-DCI (DCI)-based transmission, thereby helping the terminal share a multi-DCI DCI-based transmission capability and a CA/DC (DCI)-based transmission capability to improve a processing capability of the terminal.
    Type: Grant
    Filed: August 13, 2021
    Date of Patent: April 15, 2025
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Shibin Ge, Haicun Hang, Liuliu Ji, Xiaohan Wang, Xiaoyan Bi
  • Patent number: 12267829
    Abstract: This application provides a parameter configuration method and a communications apparatus. The method includes: receiving, by a terminal device, an indication of a first mapping relationship from a network device, where the first mapping relationship is a mapping relationship in a preconfigured first mapping relationship group, and the first mapping relationship group includes at least one mapping relationship, to indicate at least one correspondence between a reporting quantity of spatial domain vectors and a reporting quantity of frequency domain vectors; and determining, by the terminal device, the reporting quantity of spatial domain vectors and the reporting quantity of frequency domain vectors based on the first mapping relationship.
    Type: Grant
    Filed: July 8, 2021
    Date of Patent: April 1, 2025
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Xiaohan Wang, Huangping Jin, Xiaoyan Bi
  • Patent number: 12267135
    Abstract: The present disclosure relates to communication methods and communications apparatus. One example method includes determining a plurality of frequency domain units on which reporting of a precoding matrix indicator (PMI) is based in reporting bandwidth. The plurality of frequency domain units include one or more first frequency domain units and third frequency domain units obtained by dividing one or more second frequency domain units. A granularity of the first frequency domain unit is less than a preconfigured first granularity, a granularity of the second frequency domain unit is a first granularity, and a granularity of the third frequency domain unit is a predetermined second granularity. The first granularity is a granularity preconfigured for reporting a channel quality indicator (CQI), a second granularity is a granularity predetermined for reporting the PMI, and the second granularity is less than the first granularity.
    Type: Grant
    Filed: September 27, 2021
    Date of Patent: April 1, 2025
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Xiaohan Wang, Yongping Zhang, Huangping Jin, Xiang Gao, Xiaoyan Bi
  • Patent number: 12244382
    Abstract: A channel state information feedback method includes: a terminal receives first indication information from a network device, and the terminal sends channel state information to the network device. The first indication information is used to indicate a type of a right multiplication matrix in a first codebook, and the first codebook satisfies a formula (I). W is the first codebook, W1 is a port selection matrix, (II) is a linear superposition coefficient matrix, Wf is the right multiplication matrix, and (III) is a conjugate transpose of Wf, and is used by the terminal to determine the channel state information based on the first codebook. According to the method, when there are a plurality of codebooks, the codebook used by the terminal to obtain the CSI can be clearly indicated.
    Type: Grant
    Filed: August 12, 2022
    Date of Patent: March 4, 2025
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Shibin Ge, Huangping Jin, Xiaohan Wang, Yiling Yuan, Xiaoyan Bi
  • Patent number: 12244381
    Abstract: This application describes a channel information feedback method and a communication apparatus. The method includes a terminal device that receives configuration information sent by a network device, where the configuration information is used to configure a feedback mode of channel information. The terminal device may feed back current channel information to the network device when the feedback mode configured by using the configuration information is a first mode. The terminal device may alternatively feeds back predicted channel information to the network device when the feedback mode configured by using the configuration information is a second mode. System performance is therefore improved by the method described in this application because channel information feedback requirements in different scenarios can be met.
    Type: Grant
    Filed: June 29, 2022
    Date of Patent: March 4, 2025
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Xiang Ren, Huangping Jin, Xiaohan Wang, Shibin Ge, Yiling Yuan
  • Patent number: 12224822
    Abstract: This disclosure provides methods and apparatuses for precoding in wireless communications. In an implementation, a method includes: receiving, from a terminal device, first indication information, wherein the first indication information indicates L1 space domain vectors in a space domain vector set, K1 frequency domain vectors in a frequency domain vector set, and T1 space-frequency component matrices, wherein a precoding vector of one or more frequency domain units is determined by a weighted sum of the T1 space-frequency component matrices, wherein the L1 space domain vectors and the K1 frequency domain vectors correspond to M1 space-frequency component matrices that comprise the T1 space-frequency component matrices, and determining the precoding vector of the one or more frequency domain units based on the first indication information.
    Type: Grant
    Filed: November 6, 2023
    Date of Patent: February 11, 2025
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Xiaohan Wang, Huangping Jin, Xiaoyan Bi
  • Publication number: 20250039914
    Abstract: This application provides a method for reporting a terminal device capability and a communications apparatus. The method includes: The terminal device generates first indication information and sends the first indication information to a network device. The first indication information is used to indicate one or more frequency domain parameters and one or more of the following capability parameters associated with each frequency domain parameter: a port quantity, a spatial domain parameter, a reference signal resource quantity, and a total port quantity. The frequency domain parameter is used to indicate a maximum quantity of frequency domain units that can be supported by the terminal device. The frequency domain unit is a frequency domain unit based on which the terminal device feeds back a PMI. Each capability parameter group may be used to indicate one combination of a plurality of parameters that can be supported by the terminal device.
    Type: Application
    Filed: July 30, 2024
    Publication date: January 30, 2025
    Inventors: Yongping ZHANG, Baojin LI, Xiaohan WANG, Huangping JIN
  • Publication number: 20250014358
    Abstract: A method and device for image processing, and a storage medium are provided. The method includes the following operations. A video stream captured by an image capturing device installed on a traveling device is acquired, and a plurality of frames of image containing a specific traffic object are determined from the video stream. A category of a specific traffic object and a confidence level of the category in each of the plurality of frames of image are determined. Correction information of the category, the confidence level of which does not meet a preset condition, is determined based on a comparison result of the confidence levels of the categories of the specific traffic object in the plurality of frames of image.
    Type: Application
    Filed: September 23, 2024
    Publication date: January 9, 2025
    Inventors: Xiaohan WANG, Peiwen LIN, Kaname TOMITE
  • Publication number: 20250015852
    Abstract: This application provides a channel state information (CSI) transmission method, a communication apparatus, and a communication device. The method includes: obtaining CSI corresponding to N port groups, where the CSI includes first CSI corresponding to each of the N port groups, and N is an integer greater than 1; and sending first information and second information, where the first information includes first indication information, the first indication information indicates that the second information includes first CSI corresponding to each of K port groups, the N port groups include the K port groups, and K is a positive integer less than N.
    Type: Application
    Filed: September 17, 2024
    Publication date: January 9, 2025
    Inventors: Ting Li, Xiaohan Wang, Huangping Jin
  • Publication number: 20240421866
    Abstract: This application provides a channel state information feedback method and a communication apparatus. The method includes: A first apparatus generates indication information, and sends the indication information. The indication information is used to determine at least two precoding submatrices. Different precoding submatrices correspond to different port groups, and the different port groups may correspond to different stations. According to the channel state information feedback method provided in this application, the first apparatus may indicate the information for determining the at least two precoding submatrices, so that coherent joint transmission can be performed between a plurality of stations.
    Type: Application
    Filed: August 29, 2024
    Publication date: December 19, 2024
    Inventors: Ting Li, Xiaohan Wang, Huangping Jin
  • Patent number: 12166552
    Abstract: This application provides example channel measurement methods and example communication apparatuses. One example method includes determining L weighting coefficients for determining channels of K moments based on channels of M moments, where L, M, and K are all positive integers. Information about the L weighting coefficients can then be sent.
    Type: Grant
    Filed: February 25, 2022
    Date of Patent: December 10, 2024
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Xiang Ren, Shibin Ge, Huangping Jin, Xiaohan Wang, Peng Shang