摘要
5G网络已经正式商用,以更大带宽为主要特征之一的5G网络引入了更高的频段,这对于基于传统室分系统的5G应用带来了很大的难度:在更高频段部署的5G信号在穿墙覆盖室内场景时面临更大的链路损耗,导致室内深度覆盖不足;传统室分多数无源器件无法支持3.5GHz以上的更高频段等问题,导致从现有的传统室分到5G的演进面临许多挑战。文章就解决上述问题的5G-NR多输入多输出单缆覆盖设备分析了其工作原理及其关键射频指标,并在技术上讨论了可行性的研究。
5G network has been officially commercialized,and 5G network,which is characterized by larger bandwidth,has introduced higher frequency band,which brings great difficulty to 5G application based on traditional room subsystem:5G signal deployed in higher frequency band faces greater link loss when covering indoor scene through wall,resulting in insufficient indoor depth coverage;most passive components in traditional room subsystem cannot support There are many challenges in the evolution of 5g from the existing conventional cell division due to the problems of higher frequency band above 3.5GHz.This paper analyzes the working principle and key RF index of 5G-NR multi input and multi output single cable coverage equipment to solve the above problems,and discusses the feasibility study in technology.
作者
闫旭鹏
张亚宁
刘梅
YAN Xupeng;ZHANG Yaning;LIU Mei(China Academy of Information and Communications Technology-CTTL,Beijing 100045,China)
出处
《数字通信世界》
2020年第10期11-14,共4页
Digital Communication World
