公开(公告)号：US11818714B2

公开(公告)日：2023-11-14

申请号：US16986167

申请日：2020-08-05

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shibin Ge ,  Xiaohan Wang ,  Yong Liu ,  Huangping Jin ,  Xiaoyan Bi

IPC: H04W72/12 ,  H04L1/18 ,  H04W72/04 ,  H04L1/1812 ,  H04W72/23

CPC classification number: H04W72/1278 ,  H04L1/1812 ,  H04W72/23

Abstract: A transmission control method includes: receiving N pieces of transmission control information; and generating, based on the N pieces of transmission control information, transmission feedback information corresponding to transport blocks respectively scheduled by using the N pieces of transmission control information. Transport blocks can be accurately distinguished based on different effective transmission parameter group fields, and an effective feedback is provided.

公开(公告)号：US11811471B2

公开(公告)日：2023-11-07

申请号：US17982239

申请日：2022-11-07

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04W72/23 ,  H04B7/0456 ,  H04L5/00 ,  H04L25/02

CPC classification number: H04B7/0456 ,  H04L5/0048 ,  H04L25/0202 ,  H04W72/23

Abstract: Example channel measurement methods and communications apparatus are described. One example method includes receiving a precoded reference signal by a terminal device, where the precoded reference signal is obtained by precoding a reference signal based on K angle vectors and L delay vectors. First indication information is generated and sent, where the first indication information indicates P weighting coefficients corresponding to P angle-delay pairs. The P weighting coefficients are determined by using the precoded reference signal. The P angle-delay pairs and the P weighting coefficients corresponding to the P angle-delay pairs are used to determine a precoding matrix. Each angle-delay pair includes one of the K angle vectors and one of the L delay vectors. The K angle vectors and the L delay vectors are determined based on uplink channel measurement.

公开(公告)号：US11784853B2

公开(公告)日：2023-10-10

申请号：US17707323

申请日：2022-03-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Huangping Jin ,  Shibin Ge ,  Zhimeng Zhong ,  Yong Liu ,  Xiaoyan Bi ,  Li Fan

IPC: H04B17/364 ,  H04L25/02 ,  H04W56/00

CPC classification number: H04L25/0228 ,  H04W56/0055

Abstract: Example channel measurement methods and a communication apparatus are described. One example method include receiving a precoded reference signal and indication information by a terminal device, where the indication information is used to indicate a relative delay between a first delay and a second delay, and the first delay and the second delay are determined through uplink channel measurement. The terminal device performs channel measurement based on the precoded reference signal and the indication information.

公开(公告)号：US20230239014A1

公开(公告)日：2023-07-27

申请号：US18192632

申请日：2023-03-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiaohan Wang ,  Huangping Jin ,  Haicun Hang

IPC: H04B7/0456 ,  H04W72/232 ,  H04L5/00 ,  H04L25/02

CPC classification number: H04B7/0456 ,  H04W72/232 ,  H04L5/0048 ,  H04L25/0228

Abstract: This disclosure discloses an information indication method and an apparatus, to resolve a problem that indication precision of an uplink precoding matrix is low. The method includes: receiving a downlink reference signal sent by a network device on a first transmission resource; performing channel estimation based on the downlink reference signal, to obtain a downlink equivalent channel corresponding to the first transmission resource; and determining, based on the downlink equivalent channel, to-be-indicated information corresponding to a terminal device, where the to-be-indicated information indicates an uplink precoding matrix used when a first terminal device sends uplink data on the first transmission resource. The downlink equivalent channel is obtained by performing channel estimation based on the downlink reference signal.

公开(公告)号：US11689256B2

公开(公告)日：2023-06-27

申请号：US17347903

申请日：2021-06-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04W72/04 ,  H04B7/0456 ,  H04L5/00 ,  H04L25/02 ,  H04W72/23

CPC classification number: H04B7/0456 ,  H04L5/0048 ,  H04L25/0202 ,  H04W72/23

Abstract: Example channel measurement methods and communications apparatus are described. One example method includes receiving a precoded reference signal by a terminal device, where the precoded reference signal is obtained by precoding a reference signal based on K angle vectors and L delay vectors. First indication information is generated and sent, where the first indication information is used to indicate P weighting coefficients corresponding to P angle-delay pairs. The P weighting coefficients are determined by using the precoded reference signal. The P angle-delay pairs and the P weighting coefficients corresponding to the P angle-delay pairs are used to determine a precoding matrix. Each angle-delay pair includes one of the K angle vectors and one of the L delay vectors. The K angle vectors and the L delay vectors are determined based on uplink channel measurement.

公开(公告)号：US11683076B2

公开(公告)日：2023-06-20

申请号：US16703607

申请日：2019-12-04

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ye Wu ,  Huangping Jin ,  Wei Han ,  Xiaoyan Bi

IPC: H04B7/0417 ,  H04B7/0456

CPC classification number: H04B7/0417 ,  H04B7/0456

Abstract: This application provides a data transmission method, so that data transmission reliability can be improved. The method includes: receiving, by the terminal device, a plurality of reference signals used for channel measurement; and sending, by the terminal device, a plurality of pieces of first indication information based on the at least one reference signal and a transmission scheme on which CSI feedback is based, where the plurality of pieces of first indication information are used to indicate x target precoding matrices, at least one of the plurality of pieces of first indication information is used to indicate one target precoding matrix, and the x target precoding matrices are determined based on the plurality of precoding matrices, where x is a quantity of target precoding matrices that need to be fed back, and x is an integer greater than 1.

公开(公告)号：US11652523B2

公开(公告)日：2023-05-16

申请号：US17110764

申请日：2020-12-03

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ye Wu ,  Hongzhe Shi ,  Huang Huang ,  Huangping Jin

IPC: H04B7/06 ,  H04W72/51 ,  H04B17/318 ,  H04L5/00

CPC classification number: H04B7/0617 ,  H04B17/318 ,  H04L5/0048 ,  H04W72/51

Abstract: The application provides a beam training method and a communications apparatus. The method includes: generating, by a terminal device, capability indication information, where the capability indication information is used to indicate that the terminal device can support simultaneous beam training in a maximum of N frequency bands, and N is an integer greater than or equal to 1; and sending, by the terminal device, the capability indication information. In this way, the network device may select a plurality of frequency bands at a time based on a capability of the terminal device to simultaneously perform beam training. Therefore, in an embodiments of this application, when the quantity N, of frequency bands for simultaneous training, supported by the terminal device is greater than 1, beam training may be simultaneously performed between the network device and the terminal device in a plurality of frequency bands.

公开(公告)号：US20230019630A1

公开(公告)日：2023-01-19

申请号：US17934693

申请日：2022-09-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hui Wang ,  Huangping Jin ,  Shibin Ge ,  Yiling Yuan ,  Xiaoyan Bi ,  Peng Shang

IPC: H04B7/0456 ,  H04L5/00 ,  H04W72/04

Abstract: Embodiments of this application provide an update method and a communications apparatus. The method includes: generating space domain vector update information, where the space domain vector update information is for updating a first group of space domain vectors to obtain a second group of space domain vectors, the space domain vector update information includes a plurality of groups of space domain vector coefficients, and each group of space domain vector coefficients is for performing weighted combination on the first group of space domain vectors, to obtain one space domain vector in the second group of space domain vectors; and sending the space domain vector update information.

公开(公告)号：US11411620B2

公开(公告)日：2022-08-09

申请号：US17176529

申请日：2021-02-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Huangping Jin ,  Xiaohan Wang ,  Haifan Yin ,  Peng Shang ,  Xiaoyan Bi

IPC: H04B7/04 ,  H04B7/0456

Abstract: This application provides methods and apparatuses for precoding vector indication and determination. One method includes: generating, by a first communications device, first indication information that indicates one or more port selection vectors, one or more frequency domain vectors, and one or more linear combination coefficients, wherein each of the one or more linear combination coefficients corresponds to a port selection vector and a frequency domain vector, each of the one or more port selection vectors indicates a port of a precoded reference signal, and each of the one or more frequency domain vectors indicates a variation pattern of a channel in a frequency domain; and sending the first indication information to a second communications device.

公开(公告)号：US11362707B2

公开(公告)日：2022-06-14

申请号：US17369513

申请日：2021-07-07

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Huangping Jin ,  Xiaohan Wang ,  Xiaoyan Bi

IPC: H04B7/02 ,  H04B7/0456

Abstract: The present disclosure relates to precoding vector indicating and determining methods and communications apparatus. In one example method, a 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 vectors and one or more weighting coefficients, where the one or more frequency domain vectors include a frequency domain vector reported for each of R frequency domain unit groups, the one or more weighting coefficients include a weighting coefficient reported for each of the R frequency domain unit groups, and a frequency domain vector and a weighting coefficient that are reported for an rth frequency domain unit group in the R frequency domain unit groups are used to construct a precoding vector corresponding to one or more frequency domain units in the rth frequency domain unit group.