Inter-PLMN Mobility Management Challenges for Supporting Cross-Border Connected and Automated Mobility (CAM) Over 5G

As the first 5G networks are being deployed across world, new services enabled by superior performance of in terms throughput, latency and reliability emerging. Connected Automated Mobility (CAM) perhaps among most demanding applications that will have to support their deployment, potential for improvement has been well investigated over past few years. However, CAM operation multi-operator environments inevitable inter-PLMN handover caused inherent mobility not studied length. Moreover, multiple domains, multi-vendor components high cross-border vehicular environment, introduce challenges network management dynamic slicing, making Zero-touch Service Management (ZSM) solutions an attractive alternative these environments. The work presented this study attempts analyse requirements five main use cases selected 3GPP, based on input from key European stakeholders (Network Operators, vendors, Automotive Manufacturers etc.). A detailed analysis categorization into four categories service provisioning is performed, namely Telecommunication, Application, Security/Privacy Regulatory issues, while existing upcoming technological enablers discussed each them. role standardization relevant regulatory administrative bodies analysed, leading insights regarding promising future research directions field services.