免授权长期演进系统辅助城市轨道交通长期演进系统进行综合承载的研究  

Research on Comprehensive Carrying System of Urban Rail Transit LTE System Aided by LTE in Unlicensed Spectrum

作　　者：吴可 WU Ke(Beijing National Railway Research&Design Institute of Signal&Communication Group Co.,Ltd.,100070,Beijing,China)

机构地区：[1]北京全路通信信号研究设计院集团有限公司,北京助理工程师100070

出　　处：《城市轨道交通研究》2018年第10期92-95,共4页Urban Mass Transit

摘　　要：针对济南市轨道交通使用城市轨道交通长期演进系统进行车地无线综合承载系统建设时遇到的问题,分析了城市轨道交通长期演进系统在实际应用中遇到的困难,提出了一种新的建设方案,并对免授权频谱长期演进系统目前存在的问题进行了分析。结合城市轨道交通建设的实际情况,做出了适合于城市轨道交通车地无线综合承载系统建设的组网方案。该研究有助于解决频率资源不足导致的传输速率无法满足未来城市轨道交通业务多元化、安全可视化需求的问题,为智慧地铁打下基础。Focusing on problems in the construction of wireless train/ground comprehensive carrying system in Jinan rail transit where the urban rail transit LTE system is applied,the practical difficulties are analyzed and a new construction scheme is proposed,the current problems existing in unlicensed spectrum LTE are analyzed.Based on the actual conditions of urban rail transit construction,a network scheme suitable for urban wireless train/ground comprehensive carrying system construction is developed.This research contributes to the solution of insufficient frequency resources,that lead to lower transmission speed and fail to meet the diversification and security visualization requirements for future urban transit operation,and lays the foundation of building an intelligent metro system.

关 键 词：城市轨道交通 车地无线综合承载系统 免授权频谱长期演进系统 城市轨道交通长期演进系统 

分 类 号：U231.7[交通运输工程—道路与铁道工程]