公开(公告)号：US20240178893A1

公开(公告)日：2024-05-30

申请号：US18431523

申请日：2024-02-02

Applicant: Huawei Technologies Co., Ltd.

Inventor： Junhui Gao ,  Shibin Ge ,  Huangping Jin ,  Yiling Yuan ,  Li Fan ,  Didi Zhang

IPC: H04B7/06 ,  H04B7/0456

CPC classification number: H04B7/0626 ,  H04B7/0456

Abstract: Embodiments of this application provides a channel information feedback method and a communication apparatus. In the method, first information and a strongest coefficient indicator (SCI) have a same priority in uplink control information (UCI) sent by a terminal device. The first information indicates a second frequency domain discrete Fourier transform (DFT) vector set selected by the terminal device, and the SCI indicates a space-frequency vector corresponding to a strongest coefficient in a first space-frequency vector set corresponding to the second frequency domain DFT vector set and channel state information reference signal (CSI-RS) ports selected by the terminal device. In other words, the SCI indicates the space-frequency vector that corresponds to the second frequency domain DFT vector set selected by the terminal device and that corresponds to the strongest coefficient.

公开(公告)号：US20240022307A1

公开(公告)日：2024-01-18

申请号：US18478412

申请日：2023-09-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yiling Yuan ,  Shibin Ge ,  Li Fan ,  Junhui Gao ,  Huangping Jin

IPC: H04B7/06 ,  H04L27/26

CPC classification number: H04B7/0634 ,  H04B7/0626 ,  H04L27/265

Abstract: This application relates to the field of communication technologies, and provides an information transmission method and an apparatus. In this method, a radio access network device sends, to a terminal device, first indication information indicating first information and second information and second indication information indicating a first quantity of DFT vectors, the first information indicates a first quantity of to-be-selected ports, and the second information indicates a first compression factor. The radio access network device further sends a reference signal to the terminal device. The terminal device sends downlink channel state information to the radio access network device based on the first indication information, the second indication information, and the reference signal. The compression factor is a compression factor of a complex coefficient matrix. There is a correspondence between the compression factor and a quantity of transport layers.

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：US12244382B2

公开(公告)日：2025-03-04

申请号：US17887209

申请日：2022-08-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shibin Ge ,  Huangping Jin ,  Xiaohan Wang ,  Yiling Yuan ,  Xiaoyan Bi

IPC: H04B7/06 ,  H04B7/0456

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.

公开(公告)号：US20240204844A1

公开(公告)日：2024-06-20

申请号：US18433363

申请日：2024-02-05

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Li Fan ,  Shibin Ge ,  Yiling Yuan ,  Junhui Gao ,  Didi Zhang ,  Zhimeng Zhong

IPC: H04B7/06 ,  H04B7/0452

CPC classification number: H04B7/0626 ,  H04B7/0452

Abstract: Embodiments of this application disclose an information feedback method and a related apparatus. A terminal device sends first information to a network apparatus, where the first information includes a total quantity of nonzero coefficients at all spatial layers of the terminal device, and the nonzero coefficients are used to constitute a weighting coefficient matrix in a codebook. The first information further includes first indication information, and the first indication information indicates whether second information sent by the terminal device to the network apparatus carries indication information of a location of a nonzero coefficient. In this way, a coding bit rate of the indication information sent by the terminal device to the network apparatus is reduced while correct data transmission is ensured.

公开(公告)号：US20230164004A1

公开(公告)日：2023-05-25

申请号：US18158216

申请日：2023-01-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yiling Yuan ,  Shibin Ge ,  Huangping Jin ,  Xiaoyan Bi

IPC: H04L25/02

CPC classification number: H04L25/0224

Abstract: Embodiments of this application disclose methods and apparatuses for obtaining channel parameters. In an implementation, a method includes, sending, by a network device, a precoded reference signal and indication information indicating K selected frequency domain bases, wherein the precoded reference signal is generated on P ports by mapping K virtual ports associated with the K selected frequency domain bases to each of the P ports through beamforming, wherein K is an integer greater than 1, and wherein the P ports are precoded channel state information reference signal (CSI-RS) ports of the network device and user equipment, and receiving, by the network device, a linear superposition coefficient sent by the user equipment, wherein the linear superposition coefficient corresponds to M frequency domain bases in the K selected frequency domain bases and T ports in the P ports, wherein 1≤T≤P, and 1≤M≤K.

公开(公告)号：US12244381B2

公开(公告)日：2025-03-04

申请号：US17852957

申请日：2022-06-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiang Ren ,  Huangping Jin ,  Xiaohan Wang ,  Shibin Ge ,  Yiling Yuan

IPC: H04B7/06

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. In particular, a problem that data transmission performance deteriorates because channel information expires in a moving scenario can be resolved by feeding back the predicted channel information.

公开(公告)号：US20240244606A1

公开(公告)日：2024-07-18

申请号：US18620135

申请日：2024-03-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Didi Zhang ,  Shibin Ge ,  Yongping Zhang ,  Yiling Yuan ,  Junhui Gao ,  Li Fan ,  Huangping Jin

IPC: H04W72/0453

CPC classification number: H04W72/0453

Abstract: In accordance with an embodiment, a method includes obtaining Mv frequency domain components, where the Mv frequency domain components are a subset of N candidate frequency domain components, and Mv is a positive integer; and sending first indication information, where the first indication information indicates the Mv frequency domain components, the first indication information occupies




⌈


log
2

⁢


(




N
-
1







M
v

-
1




)


⌉




bits, and N is a positive integer greater than Mv.

公开(公告)号：US20240235628A1

公开(公告)日：2024-07-11

申请号：US18615384

申请日：2024-03-25

Applicant: Huawei Technologies Co., Ltd.

Inventor： Didi Zhang ,  Shibin Ge ,  Yiling Yuan ,  Junhui Gao ,  Li Fan ,  Huangping Jin

IPC: H04B7/0456 ,  H04B7/06

CPC classification number: H04B7/0456 ,  H04B7/0626

Abstract: This application provides a communication method and an apparatus. A terminal device receives a first indication information from a network device, where the first indication information indicates a first parameter combination including at least two of the following: a first value of Mv, a first value of β, and a first value of α. The first parameter combination is for determining that a first coefficient matrix to be indicated by the terminal device includes a maximum of K0 non-zero elements, and K0 is determined based on the first values of Mv, β, and α. The terminal device sends a second information indication to the network device, where the second indication information indicates K2 non-zero elements in the first coefficient matrix, and K2 is less than or equal to K0.