6G Mobile Communication Network: Vision, Challenges and Key Technologies
Yajun Zhao, Guanghui Yu, Hanqing Xu

TL;DR
This paper explores the vision, challenges, and key technologies of 6G mobile communication, outlining its futuristic goals and technological innovations expected by the 2030s.
Contribution
It provides a comprehensive overview of 6G's vision, technical requirements, challenges, and potential key technologies, offering guidance for future research directions.
Findings
Defines 6G vision with four keywords: Intelligent, Deep, Holographic, Ubiquitous Connectivity.
Identifies key technical challenges including throughput, energy efficiency, and ubiquitous connectivity.
Classifies potential 6G technologies such as terahertz communication, visible light communication, and space-air-ground-sea integration.
Abstract
With the open of the scale-up commercial deployment of 5G network, more and more researchers and related organizations began to consider the next generation of mobile communication system. This article will explore the 6G concept for 2030s. Firstly, this article summarizes the future 6G vision with four keywords: "Intelligent Connectivity", "Deep Connectivity", "Holographic Connectivity" and "Ubiquitous Connectivity", and these four keywords together constitute the 6G overall vision of "Wherever you think, everything follows your heart ". Then, the technical requirements and challenges to realize the 6G vision are analyzed, including peak throughput, higher energy efficiency, connection every where and anytime, new theories and technologies, self-aggregating communications fabric, and some non-technical challenges. Then the potential key technologies of 6G are classified and presented:…
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