The Metaverse depicts a parallel digitalized world where virtuality and reality are fused. It has economic and social systems like those in the real world and provides intelligent services and applications. In this paper, we introduce the Metaverse from a new technology perspective, including its essence, corresponding technical framework, and potential technical challenges. Specifically, we analyze the essence of the Metaverse from its etymology and point out breakthroughs promising to be made in time, space, and contents of the Metaverse by citing Maslow's Hierarchy of Needs. Subsequently, we conclude four pillars of the Metaverse, named ubiquitous connections, space convergence, virtuality and reality interaction, and human-centered communication, and establish a corresponding technical framework. Additionally, we envision open issues and challenges of the Metaverse in the technical aspect. The work proposes a new technology perspective of the Metaverse and will provide further guidance for its technology development in the future.

翻译：元体描述了一个平行的数字化世界,虚拟和现实融合在一起,它拥有像现实世界那样的经济和社会体系,并提供智能服务和应用。在本文件中,我们从新技术的角度介绍元体,包括它的本质、相应的技术框架和潜在的技术挑战。具体地说,我们从元体学的角度分析元体的本质,指出元体在时间、空间和内容方面有望实现的突破,引用马斯洛的 " 需求等级 " 。随后,我们总结了 " 元体 " 的四大支柱,称为无处不在的联系、空间融合、虚拟和现实互动以及以人为本的通信,并建立了一个相应的技术框架。此外,我们设想了 " 元体 " 在技术方面的公开问题和挑战。工作提出了 " 元体 " 的新技术视角,并将为其未来的技术发展提供进一步指导。