5G AgiLe and fLexible integration of SaTellite And cellulaR (5G‐ALLSTAR) is a Korea‐Europe (KR‐EU) collaborative project for developing multi‐connectivity (MC) technologies that integrate cellular and satellite networks to provide seamless, reliable, and ubiquitous broadband communication services and improve service continuity for 5G and beyond. The main scope of this project entails the prototype development of a millimeter‐wave 5G New Radio (NR)‐based cellular system, an investigation of the feasibility of an NR‐based satellite system and its integration with cellular systems, and a study of spectrum sharing and interference management techniques for MC. This article reviews recent research activities and presents preliminary results and a plan for the proof of concept (PoC) of three representative use cases (UCs) and one joint KR‐EU UC. The feasibility of each UC and superiority of the developed technologies will be validated with key performance indicators using corresponding PoC platforms. The final achievements of the project are expected to eventually contribute to the technical evolution of 5G, which will pave the road for next‐generation communications.

中文翻译：

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5G及更高版本的蜂窝，卫星和集成系统的设计

SaTellite和cellulaR（5G‐ALLSTAR）的5G敏捷和灵活集成是韩国-欧洲（KR-EU）的合作项目，旨在开发将蜂窝和卫星网络集成在一起的多连接（MC）技术，以提供无缝，可靠和无所不在的宽带通讯服务，并改善5G及更高版本的服务连续性。该项目的主要范围包括基于毫米波5G新无线电（NR）的蜂窝系统的原型开发，基于NR的卫星系统及其与蜂窝系统集成的可行性研究以及频谱研究MC的共享和干扰管理技术。本文回顾了最近的研究活动，并提出了初步结果以及三个代表性用例（UC）和一个KR-EU联合UC的概念证明（PoC）计划。每个UC的可行性和开发技术的优越性将通过使用相应的PoC平台的关键性能指标进行验证。该项目的最终成果有望最终为5G的技术发展做出贡献，这将为下一代通信铺平道路。