城市轨道交通5G公专网无线覆盖方案研究

Research on Urban Rail Transit 5G Public-private Network Wireless Coverage Scheme

[目的]城市轨道交通5G公专网是5G公网在城市轨道交通行业的垂直应用,其无线覆盖方案与5G公网仅需满足公众乘客对移动通信的需求存在较大差异。因此需研究城市轨道交通5G公专网无线覆盖方案。[方法]以城市轨道交通无线通信业务需求为前提,针对城市轨道交通的复杂应用环境,明确了5G公专网无线覆盖范围,提出了不同应用场景下无线覆盖技术指标要求;设计了隧道区域、地面区域和室内区域不同场景下的无线覆盖方式;探讨了无线网络容量优化和覆盖优化措施。[结果及结论]所形成的以业务需求为导向的城市轨道交通5G公专网无线覆盖方案是全场景、连续性的解决方案。城市轨道交通5G公专网无线覆盖方案还应统筹考虑运营商不同制式、多频段无线系统共建共享及系统之间干扰问题,以为城市轨道交通用户提供良好的5G公专网服务。

[Objective]The urban rail transit 5G public-private network(PPN)is a vertical application of 5G public network in urban rail transit industry,which differs significantly from the wireless coverage scheme of the 5G public network when only catering to the communication needs of the general public passengers.Therefore,it is necessary to study the wireless coverage scheme for urban rail transit 5G PPN.[Method]Based on the wireless communication service requirements of urban rail transit,considering its complex application environment,the wireless coverage range of the 5G PPN for urban rail transit is defined,and different requirements of wireless coverage technology index are proposed for various application scenarios.Different wireless coverage methods for tunnel areas,ground areas,and indoor areas are designed,and optimization measures for wireless network capacity and coverage are explored.[Result&Conclusion]The formed urban rail transit 5G PPN wireless coverage scheme,oriented towards service requirements,is a comprehensive and continuous solution for all scenarios.The scheme should also consider the coordination of different operator standards,multi-frequency band wireless system co-construction and sharing,and interference between systems to provide urban rail transit users with reliable 5G PPN services.