A secure and flexible communication infrastructure for the use of broadband and IP-based services is becoming more and more important in the context of Public Protection and Disaster Relief (PPDR). Government agencies and emergency responders need to be able to react quickly to emergencies across the globe. In particular, satellite-based 5G mobile networks can support government agencies during their critical tasks. To support the standardization committees and the industry, it is required to evaluate new architectures for such networks by utilizing testbeds and field trials. In this article, we propose and investigate architectures for mobile PPDR networks with satellite backhaul to ensure Communication on-the-Move. The flexibility within the architectures comes with the distribution of the core network nodes at the edge of the network applying the Core-Edge Split concept. The presented results show that already existing interfaces of the Evolved Packet Core 3GPP standard allow satellite-based 5G networks tailored to the needs of government authorities.

中文翻译：

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移动中的紧急 5G 通信：用于公共保护和救灾的移动卫星回程的概念和现场试验

在公共保护和救灾 (PPDR) 的背景下，用于使用宽带和基于 IP 的服务的安全且灵活的通信基础设施变得越来越重要。政府机构和应急响应人员需要能够对全球的紧急情况做出快速反应。特别是，基于卫星的 5G 移动网络可以在政府机构的关键任务中提供支持。为了支持标准化委员会和行业，需要利用测试平台和现场试验来评估此类网络的新架构。在本文中，我们提出并研究了具有卫星回程的移动 PPDR 网络架构，以确保移动通信。架构中的灵活性来自应用核心-边缘拆分概念的网络边缘的核心网络节点分布。所呈现的结果表明，演进分组核心 3GPP 标准的现有接口允许根据政府当局的需求量身定制基于卫星的 5G 网络。