公开(公告)号：US20200314140A1

公开(公告)日：2020-10-01

申请号：US16901176

申请日：2020-06-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yong Wang ,  Li Hu ,  Jing Chen

IPC: H04L29/06 ,  H04W24/08 ,  H04W12/12 ,  H04W60/06

Abstract: This disclosure provides a device monitoring method and apparatus and a deregistration method and apparatus. The device monitoring apparatus has a capability of obtaining signaling plane data exchanged between a core network element and a terminal device, and after obtaining the signaling plane data, the device monitoring apparatus can determine, by analyzing attribute information of the signaling plane data, a device that may initiate a DoS attack.

公开(公告)号：US20250063363A1

公开(公告)日：2025-02-20

申请号：US18937228

申请日：2024-11-05

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xuwen Zhao ,  Li Hu

IPC: H04W12/106 ,  H04W8/08 ,  H04W36/00 ,  H04W76/25 ,  H04W76/27

Abstract: A user plane integrity protection method comprises sending user plane integrity protection information of a user equipment (UE) to a first network device, wherein the user plane integrity protection information indicates whether the UE supports a user plane integrity protection, and enabling, when the UE supports the user plane integrity protection and after receiving first information from the first network device, the user plane integrity protection according to a user plane integrity protection algorithm.

公开(公告)号：US12212966B2

公开(公告)日：2025-01-28

申请号：US17520716

申请日：2021-11-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yang Xin ,  Li Hu ,  Xiaobo Wu ,  Weiwei Chong

IPC: H04W12/108 ,  H04W12/68 ,  H04W48/16 ,  H04W48/20

Abstract: Embodiments of this application provide a terminal information processing method for determining exception information of a terminal. The method includes: obtaining, by a data analytics network element, data of a first terminal on an application function network element, where the data includes exception information of the first terminal; obtaining, by the data analytics network element, first terminal information of the first terminal on one or more network elements; and determining, by the data analytics network element, exception information of a second terminal based on the exception information of the first terminal and the first terminal information.

公开(公告)号：US12200810B2

公开(公告)日：2025-01-14

申请号：US17554242

申请日：2021-12-17

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Li Hu

IPC: H04W76/30 ,  H04W28/02

Abstract: This application provides a congestion control method and an apparatus. According to the method, a control node may determine that a data processing node is in a congested state, where the data processing node is configured to process data sent by a terminal apparatus. The control node may send a first message to a first terminal apparatus corresponding to a terminal apparatus identifier in a list stored in the control node. The first terminal apparatus identifier in the list is of the first terminal apparatus in a first terminal apparatus abnormal state. The first terminal apparatus identifier is received by the control node. The first message indicates to release a user plane connection, and the user plane connection is used to transmit data of the first terminal apparatus.

公开(公告)号：US12170888B2

公开(公告)日：2024-12-17

申请号：US17548251

申请日：2021-12-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Li Hu ,  Yinghao Jin ,  Rui Wang

IPC: H04W36/00 ,  H04W36/30 ,  H04W36/36

Abstract: When triggering a handover request, a source network device requests a measurement indication from a target access network device using the handover request, where the measurement indication indicates the terminal device to measure a channel state of a target cell. In this way, the source network device sends the measurement indication to the terminal device using an RRC reconfiguration message. Then, the terminal device measures the specified channel state of the target cell based on the measurement indication, to obtain a measurement result, and then determines, depending on whether the measurement result meets a handover condition, whether to perform cell handover.

公开(公告)号：US20240080665A1

公开(公告)日：2024-03-07

申请号：US18506304

申请日：2023-11-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yishan Xu ,  Hualin Zhu ,  Haoren Zhu ,  Li Hu

IPC: H04W12/06

CPC classification number: H04W12/06

Abstract: This application provides a communication method and a communication apparatus. The method includes: A first core network device obtains a target credential and attribute information of the target credential, and sends the target credential to a terminal device. The first core network device triggers, based on the attribute information of the target credential, the terminal device to perform, by using the target credential, an authentication procedure corresponding to the target credential. According to the communication method provided in this application, the terminal device can learn of a specific authentication procedure that should be performed by using an obtained credential. In other words, according to the method, the terminal device can perform, by using the obtained credential, the authentication procedure corresponding to the credential.

公开(公告)号：US20230292388A1

公开(公告)日：2023-09-14

申请号：US18185762

申请日：2023-03-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Li Hu ,  Bingzhao Li ,  Jing Chen ,  Tingting Geng

IPC: H04W76/18 ,  H04W76/34 ,  H04W12/04 ,  H04W12/10

CPC classification number: H04W76/18 ,  H04W76/34 ,  H04W12/04 ,  H04W12/10

Abstract: A connection resume request method includes generating, by a terminal, a new access stratum key; sending, by the terminal to a target base station, a connection resume request message requesting to resume a radio resource control (RRC) connection; receiving, by the terminal, a connection resume rejection message from the target base station, wherein the connection resume rejection message indicates that the resuming of the RRC connection is rejected; and resuming, by the terminal, the new access stratum key to a previous access stratum key, wherein the previous access stratum key is an access stratum key that is used, before the apparatus enters an inactive state, by the terminal and the source base station.

公开(公告)号：US11671884B2

公开(公告)日：2023-06-06

申请号：US17245183

申请日：2021-04-30

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Rui Wang ,  Li Hu ,  Mingzeng Dai ,  Qinghai Zeng

IPC: H04W36/00 ,  H04W76/19 ,  H04L9/08 ,  H04W12/02 ,  H04W12/04

CPC classification number: H04W36/0079 ,  H04L9/0891 ,  H04W12/02 ,  H04W12/04 ,  H04W36/0038 ,  H04W76/19 ,  H04L2209/80

Abstract: The present disclosure relates to connection reestablishment methods and apparatus. In one example method, when a handover fails, a terminal reverts back to a source configuration, and obtains a selected cell. The terminal sends a connection reestablishment request to a selected radio access network device. The terminal receives a first message from the selected radio access network device, where the first message includes indication information used to indicate to derive an access network key based on a core network key. The terminal obtains a first core network key based on the indication information, and derives a first access network key based on the first core network key. The terminal communicates with the selected radio access network device by using the first access network key.

公开(公告)号：US11589220B2

公开(公告)日：2023-02-21

申请号：US16712712

申请日：2019-12-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiaoying Xu ,  Hao Bi ,  Li Hu ,  Qinghai Zeng ,  Qufang Huang

IPC: H04L29/06 ,  H04W12/037 ,  H04W76/30 ,  H04W76/27 ,  H04L9/08 ,  H04W12/06 ,  H04W28/02 ,  H04W12/69

Abstract: An embodiment of this application provides a communications method. The method includes: generating, by an first base station, a radio resource control release message on which encryption and integrity protection are performed by using a new key; and sending, by the first base station, the radio resource control release message to a second base station, thereby improving security of communication between the serving device and the terminal and reducing signaling overheads for performing key negotiation over an air interface.

公开(公告)号：US20230007472A1

公开(公告)日：2023-01-05

申请号：US17867939

申请日：2022-07-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： He Li ,  Li Hu ,  Rong Wu

IPC: H04W12/033 ,  H04W76/19 ,  H04W12/0431 ,  H04W12/041 ,  H04W12/10

Abstract: A communication method and a communications apparatus, where the method includes: after receiving an RRC resume request message from a UE, determining, by a target access network device, a first user plane security protection method between the target access network device and the UE based on a context information obtaining response from a source access network device; determining a first user plane security key between the target access network device and the UE; when receiving first uplink user plane data from the UE, performing user plane security deprotection on the first uplink user plane data based on the first user plane security key and the first user plane security protection method, to obtain uplink user plane data; and sending the uplink user plane data.