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本文概述了第四代移动通信技术的概念、关键技术及主要优势,并简要介绍了目前4G通信技术的发展现状,并对其面临的挑战进行讨论。
This paper outlines the concept, key technologies and main advantages of the fourth generation mobile communication technology. It also briefly introduces the current status of 4G communication technology and discusses the challenges it faces.