基于5G的非地面网络关键技术与标准化进展  

Key Technologies and Standardization of 5G-Based Non-terrestrial Networks

作　　者：徐霞艳 XU Xiayan(China Academy of Information and Communication Technology,Beijing 100191,China)

机构地区：[1]中国信息通信研究院,北京100191

出　　处：《移动通信》2020年第9期44-48,共5页Mobile Communications

摘　　要：利用卫星或无人机等平台构建基于5G的非地面通信网络,将进一步扩展5G技术的应用范围。介绍了5G非地面网络的主要用例与部署场景,基于其技术特点分析了5G非地面网络带来的技术挑战。在此基础上,分析对比了基于透明载荷和再生载荷的多种网络架构,对卫星波束与小区和跟踪区管理、移动性管理和物理层等关键技术进行了阐述,并总结了后续标准化的主要技术方向。The application of 5G technology will be further extended by 5G-based non-terrestrial networks built on satellite or UAV platforms.This paper introduces the main use cases and deployment scenarios of 5G-based non-terrestrial networks,and analyzes the technical challenges based on its technical characteristics.On this basis,the network architectures based on transparent payloads and regenerative payloads are analyzed and compared.Furthermore,the key technologies concerning the management of satellite beam,cell and tracking area,mobility management and physical layer are illustrated in detail,and the main technical direction of the subsequent standardization is summarized.

关 键 词：5G 新空口 非地面网络 

分 类 号：TN929.5[电子电信—通信与信息系统]