Cellular mobile communication network and packet data network protection method

A packet data network and cellular mobile technology, applied in the field of mobile communication, can solve the problem that the authentication and password protection strength of cellular mobile communication network terminals cannot meet the requirements of high security level users, cannot meet user security requirements, and the security function does not have sufficient and reliable evidence. Proof and other issues, to achieve the effect of convenient implementation, simple protocol, small calculation and protocol overhead

CN109286930AInactive Publication Date: 2019-01-29广州市科航通信科技有限公司
4 Cites 1 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2019-01-29
Estimated Expiration
Not applicable · inactive patent
Patent Text Reader

Abstract

The invention provides a cellular mobile communication network and packet data network protection method. The method includes the following steps that: a boundary line is defined between a cellular mobile communication network and a packet data network; a security boundary is defined inside a dedicated terminal in the cellular mobile communication network; the count value and enhanced count valueof a packet data network convergence protocol data packet are acquired, wherein the enhanced count value is logically a high bit of the count value, after the count value reaches a predetermined threshold value, the enhanced count value is increased by a predetermined numerical value; and security processing is performed on the above transmitted packet data network convergence protocol data packetaccording to the count value, the enhanced count value, and a security protection key. Compared with a network layer security protocol, the data link layer security protocol used in the method of thepresent invention has the advantages of simplicity, convenience in implementation, low computation and protocol overhead, and can better meet high security requirements especially in the field of information security.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a method for protecting a packet data network of a cellular mobile communication network, which belongs to the field of mobile communication. Background technique

[0002] In the prior art, as the cellular mobile communication network transitions from a voice-centric network to a data-centric network, the cellular mobile communication network constitutes the physical layer and data link layer of the computer network, and the cellular mobile communication network is no longer directly Provide specific services to users.

[0003] User data is still transmitted in clear text in the core network of the mobile communication network, and the terminal authentication and password protection strength of the cellular mobile communication network cannot meet the requirements of users with high security levels. In particular, the equipment of the cellular mobile communication network has not passed a high-level security assurance assessme...

Examples

Embodiment

[0025] Embodiment: determine the demarcation line between the cellular mobile communication network and the packet data network; determine the security boundary inside the dedicated terminal in the cellular mobile communication network; obtain the count value and the enhanced count value of the packet data network convergence protocol data packet, and enhance the count The value is logically the high bit of the count value. After the count value reaches the predetermined threshold value, the enhanced count value increases by a predetermined value; according to the count value, the enhanced count value and the security protection key, the packet data network aggregation protocol data packet transmitted to the upstream Perform security processing; provide security password service functions to dedicated terminals and border protection gateways; complete border protection of cellular mobile communication network packet data networks through border protection gateways according to s...