铁路大型枢纽地区GSM-R网络无线资源的管理

铁路大型枢纽如编组站通常以办理大量列车到达、解体、编组出发、直通和其他列车作业等业务为主,邻近区域汇接有大量相互交叉的线路,这些相互交叉的部分,无线网络可能相互重叠并引起干扰,实现大容量无线覆盖有一定难度.为解决铁路编组站地区特殊的地理条件和组织形式下的无线资源管理问题,本文首先明确了编组站GSM-R系统的基本构成,分析了编组站无线资源管理存在的问题,结合编组站频率规划、交叉线路无线覆盖等问题进行了研究.研究结果表明,微蜂窝和紧密频率复用有条件为枢纽地区提供更好的无线覆盖质量.最后提出了适合枢纽地区GSM-R频率规划和无线覆盖要求的技术方案.

Research of GSM-R Radio Resource Management in the Hub of Railway

There are a large number of dispatch communication services in the hub of railways to deal with much more trains organization.For many cross lines coming into these areas,overlapped wireless networks often cause interferences,and it is difficult to implement wireless coverage with huge communication capacity.In order to improve radio management under these special situations,we defined an architecture of GSM-R for marshalling yard,which is a typical example in the railway hub.The frequency planning and wireless coverage in the cross lines were deeply studied.The research shows that the technology of micro-celluar and compact reused frequency could give more good performance.Finally,a scheme of optimization solution suited for GSM-R frequency planning and wireless coverage has been given for the hub of railway.