公开(公告)号：US20210273667A1

公开(公告)日：2021-09-02

申请号：US17321287

申请日：2021-05-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yibo Lv ,  Xu Li ,  Guangjian Wang ,  Jingjing Huang

IPC: H04B1/04 ,  H04B7/06

Abstract: This application relates to the field of communications technologies and discloses a transmitter device and a signal processing method. m transmit antenna groups of the transmitter are configured to send m training signals under control of the processor. A target feedback antenna of the transmitter is configured to receive, under control of the processor, a first mixed signal obtained by superimposing the m training signals in space, where a phase difference between the first mixed signal and a second mixed signal obtained by superimposing in space the m training signals received by a receiver device falls within a preset range. A processor of the transmitter is configured to: perform DPD parameter estimation and pre-distortion processing on a to-be-sent signal. The m transmit antenna groups are further configured to send, under control of the processor, the to-be-sent signal on which pre-distortion processing has been performed.

公开(公告)号：US12250750B2

公开(公告)日：2025-03-11

申请号：US17466238

申请日：2021-09-03

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jingjing Huang ,  Jun Chen ,  Peng Liu ,  Guangjian Wang

IPC: H04W48/10 ,  H04B7/185 ,  H04W8/00 ,  H04W64/00 ,  H04W72/044 ,  H04W72/541

Abstract: A communication method, a communications apparatus, a device, and a communications system. The method includes: a terminal device receives, by using a first beam, broadcast signals broadcast by N network devices, where each broadcast signal includes a current broadcast moment and identification information of a network device that broadcasts the broadcast signal, and N is a positive integer; the terminal device obtains a second beam corresponding to the broadcast signals, where a width of the first beam is greater than that of the second beam; the terminal device measures the broadcast signals of the N network devices by using the second beam corresponding to the broadcast signal; the terminal device obtains, based on a measurement result, a second beam corresponding to a target network device, where the target network device is one of the N network devices.

公开(公告)号：US12184330B2

公开(公告)日：2024-12-31

申请号：US17986492

申请日：2022-11-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xu Li ,  Jingjing Huang ,  Jiajin Luo

IPC: H04B10/516 ,  H04B10/116 ,  H04B10/548 ,  H04J14/00 ,  H04L27/26

Abstract: This application provides a signal transmission method and apparatus. The method includes: obtaining, by a transmitter side, a first signal with N points; performing signal separation on the first signal with N points, to obtain two groups of signals (for example, a second signal with N points and a third signal with N points); determining four signals with N/2 points based on the two groups of signals obtained through separation, and combining the four signals with N/2 points, to obtain a to-be-sent signal with 3N/2 points; and sending the signal with 3N/2 points to a receiver side, to enable the receiver to restore the first signal with N points from the received signal with 3N/2 points.

公开(公告)号：US12035267B2

公开(公告)日：2024-07-09

申请号：US17390317

申请日：2021-07-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Peng Liu ,  Jun Chen ,  Jingjing Huang ,  Guangjian Wang

IPC: H04W56/00 ,  H04W84/06

CPC classification number: H04W56/005 ,  H04W56/001 ,  H04W84/06

Abstract: A timing advance update method and device, where the method includes: A terminal obtains a transmission delay variation, where the transmission delay variation is a delay variation of transmission between the terminal and a network device; the terminal determines a new timing advance based on the transmission delay variation, a current timing advance, and a timing advance critical value, where the timing advance of the terminal is not greater than the timing advance critical value; and the terminal performs uplink transmission based on the new timing advance.

公开(公告)号：US11902073B2

公开(公告)日：2024-02-13

申请号：US17986406

申请日：2022-11-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xu Li ,  Jingjing Huang ,  Junping Zhang

IPC: H04L27/26 ,  H04L5/00

CPC classification number: H04L27/2628 ,  H04L5/0048 ,  H04L27/2634

Abstract: This application provides a signal transmission method and apparatus. The method includes: obtaining, by a transmitter side, a first signal with N points; performing signal separation on the first signal with N points, to obtain two groups of signals (for example, a second signal with N points and a third signal with N points); combining the two groups of signals obtained through separation, to obtain a to-be-sent signal with 3N/2 points; and sending the signal with 3N/2 points to a receiver side, to enable the receiver to restore the first signal with N points from the received signal with 3N/2 points.

公开(公告)号：US20220022152A1

公开(公告)日：2022-01-20

申请号：US17487679

申请日：2021-09-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Peng Liu ,  Jun Chen ,  Jingjing Huang ,  Guangjian Wang

IPC: H04W56/00 ,  H04W36/00

Abstract: This application provides methods and apparatuses for uplink timing synchronization. The method includes: determining, based on beam information of a first beam and ephemeris information of the satellite base station, an uplink timing frame number of a first cell corresponding to the first beam; determining timing information of a first terminal device in the first cell based on the uplink timing frame number of the first cell, where the timing information is used to indicate a timing advance or a timing lag; and outputting the timing information.