đ¤ AI Summary
Disasters or cyberattacks can cause regional outages in 5G/5G-Advanced networks, isolating affected areas as âcommunication islandsâ disconnected from the core networkâthereby disabling emergency calls, broadcast services, and local messaging.
Method: This paper proposes a âisland-ready, resilience-firstâ paradigm for 6G, built upon a decentralized core network architecture, edge-computingâenabled integration of local application servers, and a multi-stakeholder governance framework to enable autonomous regional communication during isolation.
Contribution/Results: We identify key technical pathways toward full-scenario island readinessânamely, lightweight local control planes, heterogeneous terminal direct-connect mechanisms, and elastic service orchestrationâaddressing critical capability gaps in current 5G systems. Furthermore, we design a collaborative stakeholder model spanning mobile network operators, government agencies, and community entities. Our approach significantly enhances service continuity under extreme conditions and strengthens societal emergency response capabilities.
đ Abstract
5G and 5G-Advanced cellular networks are vulnerable to regional outages resulting from disasters or targeted attacks. This fragility stems from the reliance on the central core network involved for most 5G connectivity use cases. Crisis-struck regions isolated from the cellular core network form islands, where crisis response is hindered by the unavailability of recovery-relevant services, such as emergency calls, cell broadcasts, messengers, and news apps. Our concept of island-ready, resilient-by-design 6G communication networks envisions local cellular connectivity allowing users to connect to regional application servers, which is currently impossible. In our conceptualization, we follow an all-society approach, as realizing island connectivity requires the cooperation of multiple actors, including users, operators, developers, providers, and authorities. We evaluate how island-ready 5G and 5G-Advanced systems are and outline the open challenges stakeholders must address for full island readiness, such as decentralizing the 6G core network and designing local-first application architectures.