5G非授权频谱技术与应用建议  

Consideration and Introduction of 5G NR in Unlicensed Spectrum

作　　者：卢斌[1] 陈兵[1] LU Bin;CHEN Bing(Guangdong Research Institute of China Telecom Co.,Ltd.,Guangzhou 510630,China)

机构地区：[1]中国电信股份有限公司研究院,广东广州510630

出　　处：《移动通信》2020年第8期49-55,共7页Mobile Communications

摘　　要：随着移动通信业务量的不断增长,授权频段的短缺问题日益明显,非授权频段的使用必要性不断提高。对现有非授权频谱资源进行分析,阐述了NR-U标准化研究进展、部署场景和其他非授权频谱主要技术,然后分析NR-U的主要增强技术,包括LBT(先听后说)、COT(占用时间)和上行信号变换技术等,最后对NR-U的应用进行思考和分析,并提出了相关建议,为NR-U技术业务发展提供参考。With the continuous growth of mobile communication traffic, the shortage of licensed frequency bands become increasingly obvious and the adoption of unlicensed frequency bands becomes increasingly necessary. This paper analyzes the current unlicensed spectrum resources, illustrates the standardization research progress, deployment scenarios, and other key unlicensed spectrum technologies. Then the key enhanced techniques of NR-U are analyzed including LBT(listen before talk), COT(channel occupancy time), and uplink signal conversion technology. Finally, the paper gives some considerations and suggestions about application of NR in unlicensed spectrum to provide reference for the development of NR-U technology and service.

关 键 词：NR-U 非授权频谱技术 LBT COT 

分 类 号：TN929.5[电子电信—通信与信息系统]