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）移动通信正在构建突破性技术的创新架构，推动智慧工厂、智慧城市和物联网（IoT）的发展，但这些应用在高度认知的敏捷架构、海量连接支持、能源效率以及极致超低时延方面给通信网络带来的前所未有的压力，正将5G推向其极限。因此，学术界和工业界的关注焦点已转向后5G（B5G）及第六代（6G）系统的概念化。本文探讨了推动新型网络需求协调的四大关键数字与社会用例（UC）。基于此，我们提出了核心架构要素的愿景，这些要素将实现6G网络融合数字、物理与人类世界体验的承诺。我们概述了支撑6G实现独特期望并重新定义人类生活方式及地球保护的关键颠覆性技术范式。最后，我们采用近期构想的音乐物联网（IoMusT）生态系统，描绘所讨论的用例与技术范式如何被应用于实现该生态系统。