Research on security of proximity based service in 5G

doi:10.12267/j.issn.2096-5931.2022.08.004

Abstract

Abstract:

Starting from 3GPP release 13, UE to network relay (U2N 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 U2N Relay mode to access the network.With the introduction of the U2N control plane in 3GPP release 17, how to guarantee the control plane security in the U2N 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 U2N Relay mode, gives an overall security analysis of such mode, and provides some solutions to resolve the security issues of U2N Relay service.

Key words: proximity based service, UE to network relay, security, 5G

CLC Number:

TN929.11

LIU Yuze, XING Zhen, YOU Shilin, LIN Zhaoji. Research on security of proximity based service in 5G[J]. Information and Communications Technology and Policy, 2022, 48(8): 24-30.

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http://ictp.caict.ac.cn/EN/10.12267/j.issn.2096-5931.2022.08.004

http://ictp.caict.ac.cn/EN/Y2022/V48/I8/24

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Research on security of proximity based service in 5G

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