公开(公告)号：US12155430B2

公开(公告)日：2024-11-26

申请号：US18073608

申请日：2022-12-02

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jianbiao Xu ,  Gaoning He ,  Jianmin Lu

IPC: H04B7/02 ,  H04B7/0456

Abstract: This application provides a communication method and apparatus, and relates to the field of communication technologies. In the method, a first communication apparatus determines a first index indicating a first precoding vector, and sends the first index to a second communication apparatus. The second communication apparatus receives the first index from the first communication apparatus, determines the first precoding vector based on the first index, and precodes data based on the first precoding vector. The first precoding vector includes spatial angle information and spatial depth information of a channel between the first communication apparatus and the second communication apparatus.

公开(公告)号：US20230318675A1

公开(公告)日：2023-10-05

申请号：US18174380

申请日：2023-02-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianbiao Xu ,  Gaoning He ,  Jianmin Lu

IPC: H04B7/06 ,  H04B7/0456

CPC classification number: H04B7/0626 ,  H04B7/0456 ,  H04B7/0413

Abstract: A channel state information processing method and a communication apparatus. The method includes obtaining CSI information of a channel, where the CSI information includes an N-dimensional antenna domain coefficient, and N is an integer greater than 1; performing a beam domain transformation on the CSI information based on an array response feature, to obtain first CSI transformation information that includes an N-dimensional beam domain coefficient; performing a cluster sparse domain transformation on the first CSI transformation information based on a cluster sparse transformation basis, to obtain second CSI transformation information that includes an N-dimensional cluster sparse domain coefficient and the cluster sparse transformation basis is determined based on a channel prior statistical feature of the channel; and sending quantized values of L cluster sparse domain coefficients in the N-dimensional cluster sparse domain coefficient to a second communication apparatus, where L is a positive integer less tha

公开(公告)号：US11284368B2

公开(公告)日：2022-03-22

申请号：US16563378

申请日：2019-09-06

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jianbiao Xu ,  Liwei Ge ,  Youtuan Zhu ,  Yiping Qin

IPC: H04W56/00 ,  H04B7/024 ,  H04L5/00 ,  H04L27/26 ,  H04W72/04

Abstract: The present disclosure relates to coordinated multipoint wireless communications methods. One example method includes predicting a first delay difference between receiving, by a terminal device, downlink data from a beam A of a first node and receiving, by the terminal device, the downlink data from a beam B of a second node, where the terminal device is located in a coverage area in which the beam A intersects with the beam B, and determining a first adjustment time period based on the first delay difference, where the first adjustment time period is used to adjust a transmission time in which the first node transmits the downlink data to the terminal device by using the beam A.

公开(公告)号：US11234294B2

公开(公告)日：2022-01-25

申请号：US16749103

申请日：2020-01-22

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Quanzhong Gao ,  Heng Xu ,  Guochen Liu ,  Liwei Ge ,  Jianbiao Xu ,  Senbao Guo

IPC: H04W88/08 ,  H04W16/28 ,  H04W72/04 ,  H04W72/10

Abstract: This application provides example data dimension reduction methods, apparatus, and systems, computer devices, and storage mediums, and relates to the communications field. One example method includes receiving an antenna domain received signal, where the antenna domain received signal includes an uplink signal that is received from UE by an array antenna corresponding to an RRS, wherein the antenna domain received signal is a time domain signal, a dimension of the antenna domain received signal is N1, and N1 is an integer greater than 1. A received beam weight is obtained based on channel information of the UE. Dimension reduction is performed on the antenna domain received signal by using the received beam weight to obtain a beam domain received signal, where the beam domain received signal is a frequency domain signal, a dimension of the beam domain received signal is N2, and 0