公开(公告)号：US20230232470A1

公开(公告)日：2023-07-20

申请号：US18155604

申请日：2023-01-17

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiaoying XU ,  Xiaoxiao ZHENG ,  Lingli PANG ,  Li YANG

IPC: H04W76/11 ,  H04W48/00 ,  H04W48/16 ,  H04W76/27 ,  H04W4/70

CPC classification number: H04W76/11 ,  H04W72/23 ,  H04W48/00 ,  H04W48/16 ,  H04W72/20 ,  H04W72/1268 ,  H04W76/27 ,  H04W72/0453 ,  H04W4/70

Abstract: Embodiments of the present disclosure provide a data transmission method, terminal, and base station, relate to the communications field, and can improve data packet transmission efficiency. The data transmission method includes: receiving, by a terminal in an idle state, a first resource sent from a base station, where the first resource is used by the terminal to send an uplink application layer data packet to the base station; and sending, by the terminal, on the first resource, the uplink application layer data packet to the base station. The data transmission method is applied to the data transmission system.

公开(公告)号：US20230041246A1

公开(公告)日：2023-02-09

申请号：US17961104

申请日：2022-10-06

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Chunhua YOU ,  Xiaoying XU ,  Qinghai ZENG

IPC: H04W76/19 ,  H04W76/30 ,  H04W76/12 ,  H04W72/14

Abstract: Embodiments of this application provide example communication methods and apparatuses. One example method includes receiving, by a first network device, a first request message and uplink data from a terminal, where the first request message is for requesting to resume a suspended radio resource control (RRC) connection. The first network device can then send a second request message to a second network device based on the first request message and the uplink data, where the second network device is a network device previously serving the terminal, and the second request message includes information about the uplink data, where the second request message is for requesting the second network device to release a first data channel between the second network device and a core network device, or the second request message is for requesting the second network device to send a context of the terminal to the first network device.

公开(公告)号：US20230036797A1

公开(公告)日：2023-02-02

申请号：US17966087

申请日：2022-10-14

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiaoying XU ,  Kaiyang QU

IPC: H04W56/00

Abstract: The technology of this application relates to the field of communication technologies, and discloses a time synchronization method and an apparatus. The method includes a CU determines reference time of a terminal device at a reference point, and sends first information to the terminal device, where the first information is used to indicate the reference time of the terminal device at the reference point. After receiving the first information, the terminal device may perform time synchronization based on the reference time of the terminal device at the reference point. In this manner, the terminal device may obtain the reference time of the terminal device at the reference point from the CU, so that processing complexity of the terminal device can be effectively reduced, and power consumption of the terminal device can be reduced.

公开(公告)号：US20220338298A1

公开(公告)日：2022-10-20

申请号：US17855166

申请日：2022-06-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiaoying XU ,  Chunhua YOU ,  Qinghai ZENG ,  Qufang HUANG ,  Chong LOU

IPC: H04W76/27 ,  H04W76/32

Abstract: A context management method and an apparatus are provided. The method includes: When a distributed unit DU of a network side device receives a first message from a centralized unit CU of the network side device, the distributed unit DU of the network side device may store a context of the terminal side device in an inactive state. The first message includes a second message, and the second message is used to indicate the terminal side device to enter the inactive (inactive) state and release a connection to the network side device.

公开(公告)号：US20220248260A1

公开(公告)日：2022-08-04

申请号：US17683996

申请日：2022-03-01

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiaoying XU ,  Jun CHEN ,  Qufang HUANG ,  Qinghai ZENG

IPC: H04W28/02 ,  H04L47/32 ,  H04L47/625 ,  H04W72/04 ,  H04W80/08

Abstract: The present disclosure relates to data transmission methods, network devices. One example data transmission method includes: a first network node sends a first indication information to a second network node, the first indication information includes information about an uplink data volume of a buffer of a terminal device, or the first indication information indicates a relationship between an uplink data volume of a buffer of a terminal device and a predefined data volume threshold.

公开(公告)号：US20220159100A1

公开(公告)日：2022-05-19

申请号：US17591855

申请日：2022-02-03

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiaoying XU ,  Qufang HUANG ,  Qiang FAN ,  Chong LOU

IPC: H04L69/04

Abstract: Example communication methods and apparatus are described. One example method includes obtaining a first compression dictionary by a compression node. The compression node compresses a first data packet by using a first compression dictionary, and sends a first compressed data packet to the decompression node. The compression node compresses a second data packet by using the first compression dictionary, and sends a second compressed data packet to the decompression node.

公开(公告)号：US20220124826A1

公开(公告)日：2022-04-21

申请号：US17563815

申请日：2021-12-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Chunhua YOU ,  Qufang HUANG ,  Xiaoying XU ,  Yinghao GUO ,  Chong LOU

IPC: H04W74/08

Abstract: This application provides a random access method and a communication apparatus. The method includes: receiving, by a terminal device, a response message from a network device; determining, by the terminal device, a message format of the response message, where the message format includes a first format or a second format; and parsing, by the terminal device, the response message based on the determined message format, where the response message in the first format includes a contention resolution identity and a control plane message; and the response message in the second format includes a contention resolution identity and includes no control plane message. A two-step random access method provided in this application includes two message formats of a random access response.

公开(公告)号：US20210378021A1

公开(公告)日：2021-12-02

申请号：US17401625

申请日：2021-08-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Chunhua YOU ,  Qufang HUANG ,  Yinghao GUO ,  Xiaoying XU ,  Kaiyang QU

IPC: H04W74/08

Abstract: The present disclosure discloses example random access methods and apparatuses. One example method includes a terminal receiving a random access configuration from a network device. Indication information from the network device is received by the terminal, where the indication information determines a target random access configuration in the random access configuration. Random access to the network device is initiated by the terminal based on the indication information by using the target random access configuration.

公开(公告)号：US20210218489A1

公开(公告)日：2021-07-15

申请号：US17213576

申请日：2021-03-26

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiaoying XU ,  Qufang HUANG ,  Qinghai ZENG ,  Chong LOU

IPC: H04J3/06 ,  H04W56/00

Abstract: A reference time determining method and apparatus are provided, to prevent aberrations in a control instruction execution time caused by inconsistency between a reference time of a terminal and a reference time of a control device in the conventional technology. In this application, the terminal may receive a plurality of pieces of time reference information sent by the network device. When the terminal receives indication information from the network device, the terminal may select, based on the indication information, one piece of time reference information from the plurality of pieces of time reference information as first time reference information. The indication information indicates the first time reference information. After determining the first time reference information, the terminal may determine the reference time of the terminal based on the first time reference information.

公开(公告)号：US20200260283A1

公开(公告)日：2020-08-13

申请号：US16859699

申请日：2020-04-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Li HU ,  Bingzhao LI ,  Xiaoying XU ,  Jing CHEN ,  He LI

IPC: H04W12/10 ,  H04W12/00 ,  H04W12/04 ,  H04L9/14 ,  H04W36/08 ,  H04W76/27

Abstract: This application provides an RRC connection resume method and apparatus. In the method, when a terminal moves to a target base station, the target base station may reselect, based on a capability and a requirement of the target base station, a first encryption algorithm and a first integrity protection algorithm that are used when the target base station communicates with the terminal, and send the first encryption algorithm and the first integrity protection algorithm to the terminal. On one hand, a security algorithm used for communication between the terminal and the target base station is flexibly selected. On the other hand, because the base station connected to the terminal changes, communication security can be improved by using a new encryption algorithm and integrity protection algorithm.