公开(公告)号：US09722802B2

公开(公告)日：2017-08-01

申请号：US14804643

申请日：2015-07-21

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Wenjun Jin ,  Ying Xiong ,  Jiajia Chen ,  Jiangsheng Wang

IPC: H04L9/32 ,  H04L29/06

CPC classification number: H04L9/3268 ,  H04L63/0823 ,  H04L63/123

Abstract: Embodiments of the present invention disclose a method, an apparatus, and a system for increasing network security. The method for increasing network security includes: receiving, by a network management system, a certificate message reported by a network element; generating, by the network management system, a first list; when determining that a certificate corresponding to certificate information in the first list needs to be revoked, generating, by the network management system, a certificate revocation request file according to the certificate information, and removing the certificate information in the first list from the first list; and sending, by the network management system, the certificate revocation request file to a public key infrastructure (PKI) system.

公开(公告)号：US20210160748A1

公开(公告)日：2021-05-27

申请号：US17169408

申请日：2021-02-06

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Wenjun Jin ,  Xiaochun Xiong

IPC: H04W36/00 ,  H04W36/30

Abstract: A cell handover method, an apparatus, and a system are disclosed. In this application, a first base station sends a measurement control message to a terminal device, where the measurement control message includes information about a pilot signal allocated to the terminal device. After receiving a measurement response message from the terminal device, where the measurement response message includes signal quality of the pilot signal, and determining that the signal quality of the pilot signal satisfies a handover condition, the first base station performs a cell handover process for the terminal device. The first base station first determines that the signal quality, reported by the terminal device, of the pilot signal satisfies the handover condition, so that the terminal device is effectively prevented from directly accessing a fake base station, and it is also ensured that the terminal device can successfully access the second base station without a call drop.