5G邻近通信安全研究  

Research on security of proximity based service in 5G

作　　者：刘宇泽 邢真 游世林[1] 林兆骥[1] LIU Yuze;XING Zhen;YOU Shilin;LIN Zhaoji(ZTE Corporation,Shanghai 201203,China)

机构地区：[1]中兴通讯股份有限公司,上海201203

出　　处：《信息通信技术与政策》2022年第8期24-30,共7页Information and Communications Technology and Policy

摘　　要：从3GPP R13版本开始,UE to Network Relay(U2N Relay)模式被引入邻近通信。无论UE是否在基站覆盖范围内,UE都可以通过U2N Relay模式连接另一个中继UE从而接入网络。而在3GPP R17版本,随着U2N控制面的引入,如何保障U2N Relay模式下的控制面安全是一个亟需解决的问题。介绍了U2N Relay模式下2层中继和3层中继方式的不同,并对U2N Relay模式下的安全问题进行了分析;针对U2N Relay服务根密钥5GPRUK的更新问题,进行了研究并给出了方案。Starting from 3 GPP release 13,UE to network relay(U2 N Relay)was introduced in proximity based service(Prose).Whether or not a UE is within the coverage of the base station,the UE can connect to a relay UE via the U2 N Relay mode to access the network.With the introduction of the U2 N control plane in 3 GPP release 17,how to guarantee the control plane security in the U2 N Relay mode is becoming an urgent problem to be solved.This paper introduces the difference between the layer 2 relay and layer 3 relay in the U2 N Relay mode,gives an overall security analysis of such mode,and provides some solutions to resolve the security issues of U2 N Relay service.

关 键 词：邻近通信 UE to Network Relay 安全 5G 

分 类 号：TN929.11[电子电信—通信与信息系统]