公开(公告)号：US11784770B2

公开(公告)日：2023-10-10

申请号：US17833478

申请日：2022-06-06

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lu Wu ,  Yong Liu ,  Xiaoyan Bi

IPC: H04W36/30 ,  H04W72/04 ,  H04L5/00

CPC classification number: H04L5/0048 ,  H04L5/005 ,  H04L5/0007 ,  H04L5/0044 ,  H04L5/0051 ,  H04L5/0023

Abstract: Embodiments of the present invention provide a method and an apparatus for sending a reference signal, and a method and an apparatus for obtaining a reference signal. The method for sending a reference signal includes: determining, based on a resource that is allocated to a reference signal in a basic pattern corresponding to the reference signal and a resource that is allocated to at least one basic pattern in a physical layer transmission unit, a resource occupied by the reference signal in the physical layer transmission unit; and sending the reference signal through the determined resource. It can be learned that, according to the technical solutions provided in the embodiments of the present invention, arrangement of the reference signal in the physical layer transmission unit can be flexibly set.

公开(公告)号：US20230308141A1

公开(公告)日：2023-09-28

申请号：US18325554

申请日：2023-05-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ting Wang ,  Huan Sun ,  Yong Liu ,  Xiaoyan Bi ,  Gaoning He

IPC: H04B7/04 ,  H04W72/0446 ,  H04W72/53 ,  H04B7/08 ,  H04B7/0413

CPC classification number: H04B7/04013 ,  H04W72/0446 ,  H04W72/53 ,  H04B7/088 ,  H04B7/0413

Abstract: A communication method, device, and system belong to the field of communication technologies. A first device may determine a frame structure and perform communication based on the frame structure, so that the first device may receive, in a receiving time unit, a setting instruction indicating a first state, and reflect a signal based on the first state in a reflection time unit.

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：US11419120B2

公开(公告)日：2022-08-16

申请号：US16861842

申请日：2020-04-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shengyue Dou ,  Shibin Ge ,  Ting Wang ,  Yuanjie Li ,  Xi Zhang ,  Xiaoyan Bi

IPC: H04W72/04 ,  H04W76/11 ,  H04L5/00

Abstract: This disclosure provides an information transmission method and a communications device. The method includes: when determining that higher layer signaling is not configured with a scrambling identifier, scrambling or descrambling, by a communications device, data by using a second initial scrambling value, where the scrambling identifier is used by the communications device to determine a first initial scrambling value used for data scrambling or descrambling, and the second initial scrambling value is related to at least one or two of a cell identifier, a radio network temporary identifier, and a reserved bit. Therefore, in the embodiments of this disclosure, when determining that the higher layer is not configured with the scrambling identifier, the communications device scrambles or descrambles the data by using the second initial scrambling value. This resolves a problem in the prior art that a terminal device cannot determine an initial scrambling value used for data scrambling.

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：US11190312B2

公开(公告)日：2021-11-30

申请号：US16665875

申请日：2019-10-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yong Liu ,  Xiaoyan Bi ,  Leiming Zhang

IPC: H04L5/00 ,  H04W76/27 ,  H04L25/02 ,  H04W72/04

Abstract: Embodiments of this application disclose a parameter configuration method and apparatus, relate to the field of communications technologies, and specifically provide a method and an apparatus for setting a resource unit bundling size, to help improve accuracy of a channel estimation result. The method may include: generating parameter configuration signaling, and sending the parameter configuration signaling. The parameter configuration signaling is used to indicate the resource unit bundling size. The resource unit bundling size may be applied to at least two inconsecutive time-frequency resources in frequency domain, and each time-frequency resource includes at least one consecutive resource unit in frequency domain; or may be applied to at least two inconsecutive time-frequency resources in time domain, and each time-frequency resource includes at least one consecutive resource unit in time domain.

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.