南京地铁宁高线LTE系统综合业务承载方案

宁高城际禄高段为南京地铁首条采用LTE系统实现车地无线通信系统的线路,也是全国首条在120 km/h高速下采用该技术综合承载信号CBTC、PIS、车载CCTV、车辆状态信息等业务的线路。分析宁高城际禄高段LTE车地无线通信系统综合业务承载技术方案,对LTE综合承载业务、无线资源配置情况及宁高线LTE系统网络架构进行论述;并从系统网络优化、区段运行、干扰风险、网络单点可靠性及综合承载网络性能5个方面对应用方案进行测试,有效验证LTE综合业务承载的合理性与适用性。宁高城际禄高段所积累的经验可供同类工程参考借鉴。

LTE Multi-Service Capacity Scheme of Nanjing Metro Line S9

The LTE system was first used in Nanjing metro line s9 to realize a wireless communication system. This metro line is also the first in the country to adopt this technology to provide services such as CBTC, PIS, CCTV, and TCMS when the traveling speed is as high as 120 km/h. This paper analyzes the integrated service-capacity technology scheme of the LTE vehicle wireless communication system in the Ninggao Intercity Lugao section and discusses its radio resource allocation and Ninggao LTE system network architecture. Then, an application scheme is tested from five aspects: system network optimization, segment operation, interference risk, network single point reliability, and integrated capacity network performance, the results of which effectively verify the rationality and applicability of LTE integrated service-capacity technology. Nanjing metro line s9 can be used as reference for similar projects.