公开(公告)号：US20220014936A1

公开(公告)日：2022-01-13

申请号：US17448837

申请日：2021-09-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiaoli Shi ,  Qinghai Zeng ,  Chunhua You

IPC: H04W16/28 ,  H04W24/10 ,  H04B7/06 ,  H04W56/00 ,  H04W52/36

Abstract: A coverage adjustment method, apparatus, and system are provided. The method includes: A first network device obtains measurement information for measuring a cell by a terminal device, where the measurement information includes channel state information CSI, radio resource management RRM information, and location information of the terminal device; and the first network device determines a beam coverage adjustment parameter of the first network device based on the measurement information. Accuracy of network coverage adjustment is improved.

公开(公告)号：US11116013B2

公开(公告)日：2021-09-07

申请号：US16677304

申请日：2019-11-07

Applicant: Huawei Technologies Co., Ltd.

Inventor： Chunhua You ,  Qufang Huang ,  Mingzeng Dai ,  Qinghai Zeng

IPC: H04W74/08 ,  H04W52/24 ,  H04W52/36 ,  H04W72/04

Abstract: Embodiments disclose a random access method, a device, and a system, and relate to the field of communications technologies, to resolve a problem of how to implement network access when two or more uplink frequency bands exist in a 5G system. A specific solution is as follows: A terminal receives, from an access network device, random access configurations corresponding to at least two uplink frequency bands, and initiates random access based on at least one of the random access configurations corresponding to the at least two uplink frequency bands. The embodiments are used for a random access process.

公开(公告)号：US11089596B2

公开(公告)日：2021-08-10

申请号：US16577905

申请日：2019-09-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Chunhua You ,  Qufang Huang

IPC: H04W72/04 ,  H04W76/11 ,  H04W80/02 ,  H04W74/08 ,  H04W74/02 ,  H04W76/27

Abstract: This application provides a method for transmitting data and a terminal device. The method includes: receiving, by a terminal device, first control information transmitted by a network device, where the first control information includes identity information of at least one uplink beam, and the first control information is used to indicate whether the at least one uplink beam is valid; and if the first control information indicates that the at least one uplink beam is valid, determining, by the terminal device, that the at least one uplink beam is valid in preset duration; or if the first control information indicates that the at least one uplink beam is invalid, skipping, by the terminal device, transmitting data in the at least one uplink beam.

公开(公告)号：US10924220B2

公开(公告)日：2021-02-16

申请号：US16269283

申请日：2019-02-06

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Chunhua You ,  Qufang Huang

IPC: H04L1/08 ,  H04L1/18 ,  H04W76/28 ,  H04W72/04 ,  H04W72/14 ,  H04W74/08

Abstract: Embodiments of the present invention provide a hybrid automatic repeat request method and a terminal device. The method includes: obtaining a first uplink grant (UL grant) sent by a base station, where the first uplink grant is carried in a media access control MAC message; transmitting uplink data based on the first uplink grant, and starting a first timer; starting a second timer after the first timer expires; and listening to a physical downlink control channel PDCCH based on the second timer. According to the hybrid automatic repeat request method and the terminal device in the embodiments of the present invention, electricity can be saved, and a retransmission delay can be reduced.

公开(公告)号：US10798746B2

公开(公告)日：2020-10-06

申请号：US16186580

申请日：2018-11-11

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Chunhua You ,  Qufang Huang ,  Yi Guo

IPC: H04W4/00 ,  H04W74/08 ,  H04L1/18

Abstract: Embodiments of the present invention provide a communication method used for random access, including: receiving, by a terminal, random access preamble information sent by a base station; and before sending random access to the base station based on the random access preamble information, receiving, by the terminal, a random access response sent by the base station, where the random access response includes an uplink asynchronous hybrid automatic repeat request HARQ process identifier, and the uplink asynchronous HARQ process identifier is used by the terminal to send uplink data to the base station. Compared with the prior art, the communication method provided in the embodiments of the present invention can ensure to some extent that uplink data is transmitted timely and can effectively improve uplink data transmission reliability.

公开(公告)号：US10701733B2

公开(公告)日：2020-06-30

申请号：US16045703

申请日：2018-07-25

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Chunhua You ,  Qufang Huang

IPC: H04W74/08 ,  H04W74/00 ,  H04W72/04

Abstract: A transmission resource obtaining method and user equipment are provided. The transmission resource obtaining method includes: receiving first configuration information sent by an base station, and obtaining request resources based on the first configuration information, where the request resources include a scheduling request (SR) resource and a physical random access channel (PRACH) resource; determining a target request resource from the request resources based on time information of user equipment, where the target request resource includes the SR resource and/or the PRACH resource; and sending an uplink resource request to the base station by using the target request resource. The technical solutions in the embodiments of the present invention help improve uplink transmission resource obtaining efficiency.

公开(公告)号：US20190223035A1

公开(公告)日：2019-07-18

申请号：US16366478

申请日：2019-03-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Chunhua You ,  Qufang Huang

IPC: H04W24/08 ,  H04W72/14 ,  H04W72/12

CPC classification number: H04W24/08 ,  H04W52/0212 ,  H04W72/1284 ,  H04W72/14 ,  Y02D70/00 ,  Y02D70/20

Abstract: Embodiments of the present application provide a data transmission method and a terminal device. The method includes: obtaining, by a terminal device, a first indication; and monitoring, by the terminal device, a physical channel within a preset first time region to obtain a second indication, where the first indication and the second indication are used by the terminal device to determine a resource for data transmission.

公开(公告)号：US20240389160A1

公开(公告)日：2024-11-21

申请号：US18785719

申请日：2024-07-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Qiang Fan ,  Chunhua You

IPC: H04W74/0833

Abstract: A method includes: determining a first RACH resource used for a current round of random access, where the first RACH resource includes a first random access preamble, a quantity N of repeated transmissions of the first preamble, and a first physical random access channel PRACH resource required for transmission of the first preamble each time, the first PRACH resource is located on a first transmission channel, and the first transmission channel is located on an unlicensed spectrum; before each attempt to perform transmission of the first preamble, performing listen before talk LBT detection on the first transmission channel on which the first PRACH resource is located; and when the LBT detection succeeds once, performing transmission of the first preamble once by using the first PRACH resource.

公开(公告)号：US12101818B2

公开(公告)日：2024-09-24

申请号：US17402401

申请日：2021-08-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiaoying Xu ,  Qufang Huang ,  Chunhua You ,  Qiang Fan ,  Yinghao Guo ,  Chong Lou

IPC: H04W74/08 ,  H04W74/00 ,  H04W74/0833 ,  H04W72/23

CPC classification number: H04W74/0833 ,  H04W74/006 ,  H04W72/23

Abstract: A random access method is provided including: a terminal side device obtains first uplink data from a first message buffer, wherein the first message buffer is a buffer specific to a first random access procedure, the first random access procedure is a procedure in which the terminal side device sends a first random access request, sends the first uplink data on a first uplink resource, and receives response information, and the response information is a first random access response to the first random access request or a response to the first uplink data. The terminal side device sends the first random access request to a network side device, and sends the first uplink data to the network side device on the first uplink resource. The terminal side device detects downlink control information, wherein the downlink control information indicates a resource of the response information.

公开(公告)号：US12052765B2

公开(公告)日：2024-07-30

申请号：US17513882

申请日：2021-10-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Chunhua You ,  Qufang Huang

IPC: H04W74/0833 ,  H04L1/1829 ,  H04W56/00 ,  H04W72/23

CPC classification number: H04W74/0833 ,  H04L1/1861 ,  H04W56/002 ,  H04W72/23

Abstract: This application provides an uplink transmission method and a communication apparatus. When a terminal device does not obtain a TA value in a two-step random access process, the terminal device can transmit, based on a preset TA value or a maintained TA value, uplink data on an uplink transmission resource assigned in the second step of random access, or perform, based on a preset TA value or a maintained TA value, a feedback for downlink data transmitted on a downlink transmission resource assigned in the second step of random access. In this way, uplink synchronization can be implemented when no TA value is assigned in a random access process.