公开(公告)号：US20240405834A1

公开(公告)日：2024-12-05

申请号：US18805458

申请日：2024-08-14

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Huangping Jin ,  Xiaohan Wang ,  Xiaoyan Bi

IPC: H04B7/06

Abstract: This application provides a precoding matrix indicating and determining method and a communications apparatus. The method includes: generating, by a terminal device, first indication information, and sending the first indication information to a network device, where the first indication information indicates a spatial domain vector, a frequency domain vector, and a weighting coefficient that are used to construct a precoding matrix. When a value of a rank Z is greater than 2, Z transport layers include at least one first-type transport layer, and a maximum quantity M1 of frequency domain vectors reported for the first-type transport layer satisfies: M 1 = ⌊ p 1 × N 3 R ⌋ , wherein p1 is a preconfigured coefficient for determining the maximum quantity of frequency domain vectors reported for the first-type transport layer, 1≥p1>0, R is a preconfigured value, N3 is a length of a frequency domain vector, Z>2, and R, N3, and Z are all positive integers.

公开(公告)号：US20240356615A1

公开(公告)日：2024-10-24

申请号：US18759146

申请日：2024-06-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ting Li ,  Xiaohan Wang ,  Huangping Jin

IPC: H04B7/06

CPC classification number: H04B7/0639 ,  H04B7/0617 ,  H04B7/0634

Abstract: This application discloses a channel state information feedback method and apparatus, a medium, and a program product. A terminal obtains a long-period reporting amount of a precoding matrix indicator (PMI) in channel state information. N1 characteristic subspace beams are represented by a linear combination of M1 DFT base vectors in a first group of DFT base vectors, and N2 characteristic subspace beams are represented by a linear combination of M2 DFT base vectors in a second group of DFT base vectors. The long-period reporting amount includes indication information of the M1 DFT base vectors, indication information of the M2 DFT base vectors, a linear combination coefficient of the M1 DFT base vectors, and a linear combination coefficient of the M2 DFT base vectors. The terminal sends the long-period reporting amount of the PMI to an access network device.

公开(公告)号：US12015464B2

公开(公告)日：2024-06-18

申请号：US17541997

申请日：2021-12-03

Applicant: Huawei Technologies Co., Ltd.

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

IPC: H04B7/06 ,  H04B7/0456

CPC classification number: H04B7/0626 ,  H04B7/0456 ,  H04B7/0639

Abstract: A channel measurement method and a communications apparatus, the method including generating, by a terminal device, first indication information, where the first indication information indicates one or more component features of a time-varying feature, and further indicates a weighting coefficient of each component feature of the one or more component features, and the one or more component features and the weighting coefficient of each component feature represent the time-varying feature of a channel, and sending, by the terminal device, the first indication information to a network device.

公开(公告)号：US20230379020A1

公开(公告)日：2023-11-23

申请号：US18362982

申请日：2023-08-01

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiaohan Wang ,  Huangping Jin ,  Haicun Hang

IPC: H04B7/0456 ,  H04L5/00

CPC classification number: H04B7/0456 ,  H04L5/0048

Abstract: This disclosure provides a precoding method and apparatus, to improve precision of an uplink precoding matrix. The method includes: receiving a plurality of precoded downlink reference signals; measuring the plurality of downlink reference signals and determining an uplink precoding vector corresponding to an uplink data stream. This can reduce signal interference between multiple users, and improve signal quality.

公开(公告)号：US20230262728A1

公开(公告)日：2023-08-17

申请号：US18309454

申请日：2023-04-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ye Wu ,  Huangping Jin

IPC: H04W72/232 ,  G06N20/00

CPC classification number: H04W72/232 ,  G06N20/00

Abstract: This application provides a communication method. In an embodiment a communication method includes receiving first downlink control information (DCI) from a network device, wherein the first DCI is for activating a training process, and wherein the training process is for training a model corresponding to target information.

公开(公告)号：US20230239028A1

公开(公告)日：2023-07-27

申请号：US18157808

申请日：2023-01-20

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Huangping Jin ,  Haicun Hang ,  Xiaohan Wang ,  Xiaoyan Bi

IPC: H04B7/06 ,  H04B7/0456

CPC classification number: H04B7/0626 ,  H04B7/0456 ,  H04B7/0639

Abstract: A channel measurement method and a communication apparatus are provided. The method includes: generating channel information, where the channel information indicates one or more receive beam vectors and one or more weighting coefficients, each of the one or more weighting coefficients corresponds to one receive beam vector, the one or more receive beam vectors and the one or more weighting coefficients corresponding to the one or more receive beam vectors are used to determine a channel of at least one frequency domain unit between a terminal device and a network device, the one or more receive beam vectors are selected from a receive beam vector set, and the receive beam vector set is determined based on a predefined base vector set; and sending the channel information.

公开(公告)号：US11588524B2

公开(公告)日：2023-02-21

申请号：US17349364

申请日：2021-06-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Huangping Jin ,  Zhimeng Zhong ,  Haitan Yin ,  Xiaoyan Bi

IPC: H04W72/04 ,  H04B7/0456 ,  H04B7/0413

Abstract: A channel measurement method and a communications apparatus. The method includes: a terminal device receives precoded reference signals from a network device, where the precoded reference signals are obtained by precoding reference signals based on K angle vectors; and generates and sends first indication information, where the first indication information is used to indicate P weighting coefficients corresponding to P angle-delay pairs, the P weighting coefficients are determined based on the precoded reference signals, each of the P angle-delay pairs includes one angle vector and one delay vector corresponding to the angle vector, a delay vector corresponding to each angle vector is preconfigured, each angle vector and the delay vector corresponding to each angle vector are obtained through uplink channel measurement, and the P angle-delay pairs and the P weighting coefficients corresponding to the P angle-delay pairs are used to determine a precoding matrix.

公开(公告)号：US11411623B2

公开(公告)日：2022-08-09

申请号：US17347850

申请日：2021-06-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Haifan Yin ,  Huangping Jin ,  Zhimeng Zhong ,  Xiaoyan Bi ,  Li Fan

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

Abstract: One example method includes receiving one or more precoded reference signals, where the one or more precoded reference signals are obtained by precoding one or more reference signals based on K angle vectors. First indication information can then be generated, where the first indication information is used to indicate at least one delay vector and P weighting coefficients corresponding to P angle-delay pairs, the at least one delay vector and the P weighting coefficients are determined based on the one or more precoded reference signals, each of the P angle-delay pair includes one of the K angle vectors and one of the at least one delay vector, and the P angle-delay pairs and the P weighting coefficients are used to determine a precoding matrix, where P and K are positive integers, and where P≥1, K≥1. The first indication information can then be sent.

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.