基于5G的3.5 GHz和2.1 GHz混合组网的高铁覆盖规划研究  

Study on coverage planning of high-speed railway based on 5G 3.5 GHz and 2.1 GHz hybrid network

作　　者：王凌风 卢国潇 WANG Ling-feng;LU Guo-xiao(Huaxin Consulting Design and Research Institute Co.,Ltd.,Hangzhou 310052,China)

机构地区：[1]华信咨询设计研究院有限公司,杭州310052

出　　处：《电信工程技术与标准化》2020年第10期17-23,共7页Telecom Engineering Technics and Standardization

摘　　要：5G 3.5 GHz和2.1 GHz的混合组网,通过高低频网络的协同,可以达到下行低频段的广覆盖或上行增强覆盖的目的。本文针对高铁场景高速移动、长距离连续覆盖和高穿透损耗等特征,通过3.5 GHz和2.1 GHz独立组网和协同组网的对比分析,并结合高低频组网工程建设方案和接入参数的设置分析,探讨了高低频组网在5G高铁覆盖场景的应用。5G 3.5 GHz and 2.1 GHz hybrid network can achieve wide coverage in downlink low frequency band or up-link enhanced coverage through coordination of high and low frequency networks.Based on the characteristics of high-speed moving,long-distance continuous coverage and high transmission loss in high-speed railway scenes,comparative analysis of 3.5 GHz and 2.1 GHz independent networking and collaborative networking.At the same time,it combines the construction plan of high and low frequency networking engineering and the analysis of access parameter settings,the application of high-low frequency network in the scene of 5G high-speed railway coverage is discussed.

关 键 词：超级上行 子载波间隔 PRACH 

分 类 号：TN929.5[电子电信—通信与信息系统]