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0引言4G移动通信作为移动通信行业中的新兴事物,在得到快速发展的同时,其安全性问题也得到了更多的关注,尤其是在安全接入方面,得到的关注度更高,也吸引大量的研究人员对此进行研究。所谓4G无线网络安全接入,是指用户在使用4G无线网络时,身份信息、用户信息等不被窃取或监听,保证用户相关信息的安全和完整。1 4G通信网络结构3G正朝着无处不在、全IP化的4G演进。4G网络体系结构
0 Introduction 4G mobile communications, as a newcomer to the mobile communications industry, has gained a lot of attention due to its rapid development. Especially in terms of secure access, it attracts more attention A large number of researchers study this. The so-called 4G wireless network security access, refers to the user using the 4G wireless network, identity information, user information is not stolen or monitored, to ensure the safety and integrity of the user-related information. 1 4G communication network structure 3G is moving toward ubiquitous, all-IP 4G evolution. 4G network architecture