公开(公告)号：US11914648B2

公开(公告)日：2024-02-27

申请号：US17667302

申请日：2022-02-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Chaorui Zhang ,  Wei Han ,  Bo Bai ,  Gong Zhang

IPC: G06F16/901

CPC classification number: G06F16/9024

Abstract: A graph refactorization method is provided, and relate to the field of communication technologies, to implement parallel graph processing with load balancing, low communication costs, and short execution time. The method includes: A first machine selects a first vertex from a local vertex set of a subgraph (S801). If a degree of the first vertex is less than or equal to a first preset threshold, the first machine fuses the first vertex and an adjacent vertex within a preset quantity of hops of the first vertex in the local vertex set into a super-vertex (S802). If the degree of the first vertex is greater than or equal to a second preset threshold, the first machine copies the first vertex to obtain N sub-vertices, and divides edges of the first vertex in the subgraph of the first machine into N parts to respectively connect to the N sub-vertices (S803).

公开(公告)号：US20240053448A1

公开(公告)日：2024-02-15

申请号：US18496237

申请日：2023-10-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wei Han ,  Kai An ,  Hongliang Wang

IPC: G01S7/481 ,  G01S17/42

CPC classification number: G01S7/4817 ,  G01S7/4815 ,  G01S17/42

Abstract: In a detection apparatus, in addition to a laser transceiver module configured to perform target detection, a reflector and a synchronous transceiver module that implements a synchronization function are further disposed. The reflector is configured to reflect an emitted light beam from the laser transceiver module to a detection area, and reflect a reflected light beam from the detection area to the laser transceiver module.

公开(公告)号：US11303490B2

公开(公告)日：2022-04-12

申请号：US16801496

申请日：2020-02-26

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Hongzhe Shi ,  Wei Han ,  Yi Qin ,  Jianqin Liu ,  Peng Jiang

IPC: H04L12/28 ,  H04L27/26 ,  H04L1/00 ,  H04L1/16 ,  H04L5/00 ,  H04W24/10 ,  H04W72/04 ,  H04W80/08 ,  H04J1/16

Abstract: This application discloses a reference signal configuration method and apparatus. Before a network device sends reference signals aperiodically, the network device sends configuration information to a terminal device, where the configuration information is used to indicate a timeslot offset of one or more reference signal resource sets. Therefore, the network device can flexibly send reference signals in different timeslots, thereby reducing a quantity of times of reference signal triggering and measurement result reporting, and improving efficiency of a communications system.

公开(公告)号：US11165480B2

公开(公告)日：2021-11-02

申请号：US16805271

申请日：2020-02-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Huangping Jin ,  Xiaoyan Bi ,  Min Zhang ,  Wei Han

IPC: H04B7/06 ,  H04B7/0417 ,  H04B7/0456

Abstract: This application provides a data transmission method and apparatus. The method includes: receiving, by a terminal device, a first reference signal sent by a network device; measuring, by the terminal device, a downlink channel based on the first reference signal, to obtain a channel status of the downlink channel; determining, by the terminal device, a target mode from a plurality of modes based on the channel status of the downlink channel, where information that is used to feed back channel state information (CSI) and that is sent by the terminal device in different modes of the plurality of modes is different; and sending, by the terminal device, indication information to the network device, where the indication information is used to indicate the target mode. The data transmission method and apparatus in the embodiments of this application are conducive to improve flexibility of feeding back CSI.

公开(公告)号：US11139869B2

公开(公告)日：2021-10-05

申请号：US16938582

申请日：2020-07-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiaohan Wang ,  Huangping Jin ,  Xiang Ren ,  Wei Han ,  Xiaoyan Bi

IPC: H04L25/02 ,  H04B7/0417 ,  H04B7/0456

Abstract: Embodiments of this application disclose a channel estimation method and apparatus, and relate to the field of communications technologies, to help reduce indication overheads. The method may include: generating and sending indication information, where the indication information is used to indicate M N-dimensional precoding vectors, each precoding vector is applied to one of M frequency bands, the M N-dimensional precoding vectors form a space-frequency matrix, and the space-frequency matrix is generated by performing weighted combination on a plurality of space-frequency component matrices, where the space-frequency matrix is an M×N-dimensional space-frequency vector or an X×Y space-frequency matrix, X and Y are one and the other of M and N, M≥1, N≥2, and both M and N are integers.

公开(公告)号：US11115091B2

公开(公告)日：2021-09-07

申请号：US16728388

申请日：2019-12-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Huangping Jin ,  Peng Jiang ,  Xiaoyan Bi ,  Wei Han

IPC: H04L27/20 ,  H04B7/0456 ,  H04B7/06 ,  H04B7/10 ,  H04L7/00 ,  H04L5/14

Abstract: Embodiments of this application disclose channel state information feedback and receiving methods, a transmit-end device and a receive-end device, and relate to the field of communications technologies. The method includes: generating and sending, by a transmit-end device, codebook indication information of K transport layers, where K is an integer greater than or equal to 2; the codebook indication information includes: L pieces of beam information used by the K transport layers, and indication information used to indicate beam information associated with each of the K transport layers; L is an integer greater than or equal to 2, and a quantity of pieces of beam information associated with at least one of the K transport layers is less than L. Implementing a channel state information feedback and receiving technology provided in this application helps reduce feedback overheads of channel state information.

公开(公告)号：US11012128B2

公开(公告)日：2021-05-18

申请号：US16266635

申请日：2019-02-04

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lu Wu ,  Wei Han ,  Hongzhe Shi

IPC: H04B7/0456 ,  H04B7/06 ,  H04B7/0408 ,  H04L5/00

Abstract: Embodiments of this application disclose a precoding matrix determining method and apparatus, to determine a stage-1 precoding matrix based on indication information that is of a spatial correlation matrix and that is fed back by a terminal, thereby implementing three-dimensional precoding based on a channel state and increasing a channel capacity. The method includes: sending, by a base station, a plurality of groups of first reference signals, where the plurality of groups of first reference signals are in a one-to-one correspondence with a plurality of dimensions of an antenna array, and each of the plurality of groups of first reference signals is used by a terminal to estimate spatial correlation matrix information in a corresponding dimension; receiving the spatial correlation matrix information fed back by the terminal based on the plurality of groups of first reference signals; and determining a stage-1 precoding matrix based on the spatial correlation matrix information.

公开(公告)号：US10911109B2

公开(公告)日：2021-02-02

申请号：US16805374

申请日：2020-02-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Peng Jiang ,  Huangping Jin ,  Wei Han ,  Peng Shang

IPC: H04B7/06 ,  H04B7/0456

Abstract: This application disclose a method for indicating and determining a precoding vector related to precoding technologies to increase an overall system performance gain. The method may include: generating indication information, and sending the indication information. The indication information is used to indicate a plurality of component vectors of a precoding vector and a combination coefficient of each component vector. The combination coefficient of the component vector includes at least one of the following types: a wideband amplitude coefficient, a narrowband amplitude coefficient, and a narrowband phase coefficient.

公开(公告)号：US10886990B2

公开(公告)日：2021-01-05

申请号：US16400533

申请日：2019-05-01

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ye Wu ,  Wei Han ,  Xiaoyan Bi

IPC: H04B7/06 ,  H04L5/00 ,  H04L1/00 ,  H04W24/10

Abstract: Implementations of this application propose example methods and apparatuses for feeding back channel state information. In one example method applied to a wireless communications system, operations include receiving, by a user equipment, time configuration signaling and feedback configuration signaling, where the time configuration signaling is used to set a feedback time period and the feedback configuration signaling is used to configure one or more feedback cycles. The user equipment obtains and sends channel state information in one or more feedback cycles during the feedback time period.

公开(公告)号：US10608714B2

公开(公告)日：2020-03-31

申请号：US16576594

申请日：2019-09-19

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Peng Jiang ,  Huangping Jin ,  Wei Han ,  Peng Shang

IPC: H04B7/0456

Abstract: This application disclose a method for indicating and determining a precoding vector related to precoding technologies to increase an overall system performance gain. The method may include: generating indication information, and sending the indication information. The indication information is used to indicate a plurality of component vectors of a precoding vector and a combination coefficient of each component vector. The combination coefficient of the component vector includes at least one of the following types: a wideband amplitude coefficient, a narrowband amplitude coefficient, and a narrowband phase coefficient.