公开(公告)号：US20240137795A1

公开(公告)日：2024-04-25

申请号：US18494510

申请日：2023-10-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Mao Yan ,  Huang Huang ,  Hua Shao ,  Lei Chen

IPC: H04W24/10 ,  H04L5/00 ,  H04L27/26

CPC classification number: H04W24/10 ,  H04L5/0051 ,  H04L27/26025

Abstract: This application relates to the field of communications technologies. A method includes: A first device receives first configuration information sent by a second device. The first configuration information includes at least one of information about a reference signal, frequency range information of a radio frequency signal, or bandwidth range information. The first device measures a first reference signal set, to obtain a first measured value. The first reference signal set includes at least two reference signals. The first device determines an expansion factor α based on the first configuration information. The first device determines a second measured value based on the first measured value and the expansion factor α.

公开(公告)号：US11902919B2

公开(公告)日：2024-02-13

申请号：US17307883

申请日：2021-05-04

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kuandong Gao ,  Huang Huang ,  Mao Yan ,  Hua Shao

IPC: H04W56/00 ,  H04W72/04 ,  H04W72/00 ,  H04J11/00 ,  H04W72/0446 ,  H04W72/30

CPC classification number: H04W56/001 ,  H04J11/0073 ,  H04J11/0076 ,  H04W56/006 ,  H04W72/0446 ,  H04W72/30

Abstract: Embodiments of this application provide a synchronization signal transmission method, a network device, and a terminal device. The method includes: determining, by a network device, time domain positions for sending m synchronization signal blocks, where the time domain positions are {s1, s2, . . . , sm}+n×T, s1 represents a start symbol index of the first synchronization signal block in a time unit, s2 represents a start symbol index of the second synchronization signal block in the time unit, sm represents a start symbol index of an mth synchronization signal block in the time unit, the time unit includes T symbols; and sending, by the network device, the synchronization signal blocks to a terminal device in the time domain positions of the synchronization signal blocks. The technical solutions provided in this application have relatively high flexibility, and can meet, to some extent, a synchronization signal block sending requirement for a high-frequency technology.

公开(公告)号：US11838783B2

公开(公告)日：2023-12-05

申请号：US17237658

申请日：2021-04-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Mao Yan ,  Huang Huang ,  Hua Shao ,  Lei Chen

IPC: H04W24/10 ,  H04L5/00 ,  H04L7/00 ,  H04W56/00 ,  H04W64/00 ,  H04L27/26

CPC classification number: H04W24/10 ,  H04L5/0051 ,  H04L27/26025

Abstract: This application relates to the field of communications technologies. A method includes: A first device receives first configuration information sent by a second device. The first configuration information includes at least one of information about a reference signal, frequency range information of a radio frequency signal, or bandwidth range information. The first device measures a first reference signal set, to obtain a first measured value. The first reference signal set includes at least two reference signals. The first device determines an expansion factor α based on the first configuration information. The first device determines a second measured value based on the first measured value and the expansion factor α.

公开(公告)号：US11736258B2

公开(公告)日：2023-08-22

申请号：US17895843

申请日：2022-08-25

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kuandong Gao ,  Huang Huang ,  Mao Yan ,  Hua Shao

IPC: H04L5/00 ,  H04W72/12 ,  H04W48/12 ,  H04W56/00 ,  H04W72/0446 ,  H04W72/23

CPC classification number: H04L5/0053 ,  H04W48/12 ,  H04W56/001 ,  H04W72/0446 ,  H04W72/23

Abstract: This application provides a system information redundancy version determining method and apparatus. A communications device determines at least one time-domain resource unit Ux, and determines a redundancy version RVx for system information on the time-domain resource unit Ux according to the time-domain resource unit Ux, where x is an identifier of the time-domain resource unit, the redundancy version RVx satisfies RVx=(Int1(X1/X2*(Int2(x/M) mod K))) mod L, x is a non-negative integer, X1 and X2 are non-zero real numbers, M is a positive real number, K and L are positive integers, mod indicates a modulo operation, Int1 indicates rounding up or rounding down, and Int2 indicates rounding up or rounding down.

公开(公告)号：US20200281026A1

公开(公告)日：2020-09-03

申请号：US16875717

申请日：2020-05-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： Mao Yan ,  Huang Huang ,  Hua Shao

IPC: H04W74/08 ,  H04W72/04

Abstract: This application discloses a communication method and apparatus. A terminal device determines a frequency position of a random access resource based on at least one of an initial frequency offset, a random access resource configuration period, an uplink channel bandwidth, a bandwidth of the random access resource, a time period of a random access resource, a time period of the random access resource, and a frequency index of the random access resource that are configured by a network device, and the terminal device sends a random access signal to the network device at the determined frequency position.

公开(公告)号：US20250070815A1

公开(公告)日：2025-02-27

申请号：US18941859

申请日：2024-11-08

Applicant: Huawei Technologies Co., Ltd.

Inventor： Mao Yan ,  Huang Huang ,  Hua Shao ,  Lei Chen

IPC: H04B1/40

Abstract: Embodiments of this application disclose a backscatter communication method and a related apparatus. The method includes: receiving, by a backscatter device, a first signal from an excitation device, the first signal carries a first sequence determined by the excitation device; modulating, by the backscatter device, backscatter device data to the first signal to obtain a second signal, wherein the backscatter device data is scrambled by the first sequence; backscattering, by the backscatter device, the second signal to a receiving device.

公开(公告)号：US12143143B2

公开(公告)日：2024-11-12

申请号：US17455482

申请日：2021-11-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Mao Yan ,  Huang Huang ,  Hua Shao ,  Lei Chen

IPC: H04B1/40

Abstract: Embodiments of this application disclose a backscatter communication method and a related apparatus. The method includes: An excitation device determines a first sequence, generates a first signal, and sends the first signal, where the first signal carries the first sequence; after receiving the first signal, a backscatter device modulates backscatter device data onto the received first signal to obtain a second signal, and backscatters the second signal, to implement first scrambling on the backscatter device data by using the first sequence; and a receiving device determines the first sequence, receives the second signal from the backscatter device, and demodulates the received second signal based on the first sequence, to obtain the backscatter device data carried on the second signal.

公开(公告)号：US11838885B2

公开(公告)日：2023-12-05

申请号：US17986466

申请日：2022-11-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hua Shao ,  Zhe Liu ,  Huang Huang

IPC: H04W56/00 ,  H04L5/00 ,  H04W72/1268

CPC classification number: H04W56/0045 ,  H04L5/001 ,  H04W72/1268

Abstract: This application provides a method and an apparatus for determining an effective time of a timing advance (TA). The method includes: determining a first subcarrier spacing from M subcarrier spacings, where the M subcarrier spacings are subcarrier spacings of L carriers used by a terminal device, and L≥M≥2; and determining an effective time of a timing advance (TA) of each of the L carriers based on the first subcarrier spacing.

公开(公告)号：US11553532B2

公开(公告)日：2023-01-10

申请号：US17018729

申请日：2020-09-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hua Shao ,  Huang Huang ,  Mao Yan ,  Kuandong Gao

IPC: H04W74/08 ,  H04L5/00 ,  H04W74/00

Abstract: This application discloses a delay reduction method and apparatus, applied to a random access process. The method includes: sending, by a terminal device, a message 1 to a network device, where the message 1 is a random access preamble; receiving, by the terminal device, a message 2 sent by the network device; and sending, by the terminal device, a message 3 to the network device, where a time gap between receiving the message 2 and sending the message 3 is set by the terminal based on a timing advance (TA) value. In an embodiment, the TA value is related to a message 1 format of the terminal device and a cell radius or subcarrier spacing supported by the message 1. In this solution, a TA value is reduced, and random access efficiency is improved.

公开(公告)号：US11470563B2

公开(公告)日：2022-10-11

申请号：US16941137

申请日：2020-07-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Huang Huang ,  Kuandong Gao ,  Mao Yan ,  Hua Shao

IPC: H04W72/04 ,  H04W74/08 ,  H04W56/00 ,  H04L5/00 ,  H04W74/02

Abstract: This application discloses a communications method and apparatus. The method includes: obtaining, by a terminal device, downlink synchronization signal block index information; receiving, by the terminal device, information used to indicate an association relationship between a random access resource RO and a synchronization signal block; and accessing, by the terminal device, a network device based on the information on an RO corresponding to the synchronization signal block index information. This application further discloses a corresponding apparatus. A time-frequency location of a random access resource associated with each downlink synchronization signal is indicated, so that the terminal device obtains, through downlink synchronization, a time-frequency location for sending an uplink random access signal, to avoid a blind attempt of the terminal device and a beam mismatch of the network device occurring when the network device receives a random access signal, thereby improving efficiency.