基于5G的地铁覆盖技术  

Metro Coverage Technology Based on 5G

作　　者：高松 苏雷 程永明 GAO Song;SU Lei;CHENG Yongming(China Mobile Group Shandong Co.,Ltd.,Ji'nan 250001,China;China Mobile Group Design Institute Shandong Co.,Ltd.,Ji'nan 250100,China)

机构地区：[1]中国移动通信集团山东有限公司,山东济南250001 [2]中国移动通信集团设计院有限公司山东分公司,山东济南250100

出　　处：《移动通信》2020年第12期29-33,共5页Mobile Communications

摘　　要：从覆盖规划、容量规划、切换规划、干扰控制四个方面,重点关注多普勒频偏、频繁切换、穿损大、瞬时容量冲击大等给地铁5G网络覆盖带来的问题。结合不同场景制定解决方案,针对站台、站厅场景,采用新型室分的建设方式,满足热点区域的覆盖及容量需求;区间隧道采用高品质辐射型泄漏电缆进行覆盖,有源设备通过POI与漏缆相连,上、下行泄漏电缆高度控制在列车车窗范围内,实现最佳覆盖效果。通过对地铁5G网络覆盖实施过程中的技术难点进行深入研究,总结值得归纳的经验,供同行参考和研究。This paper focuses on the coverage problems in metro 5 G networks caused by Doppler frequency offset, frequent switching, large penetration loss and large instantaneous capacity in terms of coverage planning, capacity planning, switching planning and interference control. The solutions are designed based on different scenarios. For platform and station hall scenarios, a novel construction method of room distribution system is adopted to meet the coverage and capacity requirements of hotspot regions. For interval tunnel scenarios, high-quality radiation type leakage cable is used to provide coverage, where active equipment is connected with leakage cable through POI and the heights of uplink and downlink leakage cables are controlled within the train window range to achieve the best coverage effect. Through the in-depth study on the technical difficulties in the implementation process of metro 5 G network coverage, the experience worthy of generalization is summarized for peer reference and research.

关 键 词：新型室分 泄漏电缆 切换分析 

分 类 号：TN915.81[电子电信—通信与信息系统]