While the fifth generation (5G) is bringing an innovative fabric of breakthrough technologies, enabling smart factories, cities, and Internet-of-Things (IoT), the unprecedented strain on communication networks put by these applications, in terms of highly cognitive, agile architectures and the support of massive connectivity, energy efficiency, and extreme ultralow latency, is pushing 5G to their limits. As such, the focus of academic and industrial efforts has shifted toward beyond 5G (B5G) and the conceptualization of sixth generation (6G) systems. This article discusses four main digital and societal use cases (UCs) that will drive the need to reconcile a new breed of network requirements. Based on this, we provide our vision of the fundamental architectural ingredients that will enable the promise of 6G networks of bringing the unification of experiences across the digital, physical, and human worlds. We outline key disruptive technological paradigms that will support 6G materialize a bouquet of unique expectations and redefine how we live and protect our planet. Finally, we adopt the recently envisaged ecosystem of the Internet-of-Musical Things (IoMusT) to depict how the discussed UCs and technological paradigms may be exploited to realize this ecosystem.

翻译：尽管第五代（5G）移动通信正带来突破性技术的创新矩阵，支撑着智能工厂、智慧城市和物联网（IoT）的构建，但这些应用对通信网络提出的前所未有的压力——体现在高度认知型敏捷架构需求、大规模连接支持、能源效率以及极致超低时延等方面——正将5G推向其性能极限。为此，学术界与产业界的焦点已转向后5G（B5G）及第六代（6G）系统的概念化研究。本文探讨了四大核心数字与社会用例（UCs），这些用例将驱动新型网络需求体系的协调统一。基于此，我们提出了实现6G网络承诺（即融合数字世界、物理世界与人类世界的统一体验）所需的基础架构要素愿景。我们概述了支撑6G实现独特期望集合的关键颠覆性技术范式，这些范式将重新定义人类生活方式与地球保护模式。最后，我们采用最新设想的音乐物联网（IoMusT）生态系统，阐释如何运用所讨论的用例与技术范式来实现该生态系统。