GSM-R网络服务质量对CTCS-3级列控系统影响研究

发布时间：2018-07-06 07:53

本文选题：GSM-R网络 + 服务质量　；参考：《中国铁道科学研究院》2017年硕士论文

【摘要】：GSM-R通信网络是铁路专用的第二代数字移动通信系统,它基于公网成熟的GSM技术,在GSM规范协议的基础上添加了位置寻址和功能寻址等功能以适应铁路专用调度通信的需要。CTCS-3级列控业务是GSM-R通信网络承载的重要业务之一,RBC发出的行车许可、临时限速等重要数据通过GSM-R通信网络发送到列车上。GSM-R通信网络服务质量QoS下降可能对CTCS-3级列控系统造成各种影响,例如误码、丢包、无线连接超时等,是影响CTCS-3级列控系统可靠运行的重要因素之一。本文首先分析了 GSM-R网络服务质量的评价体系,系统研究了 GSM-R网络性能指标、业务应用质量、服务质量、场强覆盖等关键技术指标的评价方法。在此基础上,深入研究了GSM-R网络服务质量对CTCS-3级列控系统的影响,探索实现网络性能监控、CTCS-3级列控业务无线连接超时预警的办法,以达到预判、预防CTCS-3级列控业务无线连接超时故障的目标,提升GSM-R通信系统的可靠性和CTCS-3级列控业务的稳定性。最后,本文深入分析西安铁路局CTCS-3级列控业务无线超时案例,结合GSM-R网络性能统计指标和GSM-R网络接口监测数据,分析了 CTCS-3级列控业务无线连接超时预警技术在GSM-R网络维护中的应用。
[Abstract]:GSM-R communication network is the second generation digital mobile communication system dedicated to railway. It is based on the mature GSM technology of public network. On the basis of GSM specification protocol, some functions, such as location addressing and function addressing, are added to meet the needs of railway special dispatching communication. CTCS-3 train control service is one of the important services carried by GSM-R communication network, which is issued by RBC. Some important data, such as temporary speed limit and so on, are sent to the train via GSM-R communication network. The quality of service (QoS) of the GSM-R communication network may have a variety of effects on CTCS-3 train control system, such as error code, packet loss, wireless connection timeout, etc. It is one of the important factors that affect the reliable operation of CTCS-3 train control system. This paper first analyzes the evaluation system of GSM-R network service quality, and systematically studies the evaluation methods of GSM-R network performance index, service application quality, service quality, field strength coverage and other key technical indicators. On this basis, the influence of GSM-R network quality of service on CTCS-3 train control system is deeply studied, and the method of realizing network performance monitoring CTCS-3 train control service wireless connection timeout warning is explored in order to achieve advance judgment. The aim of preventing CTCS-3 train control service from wireless connection overtime fault is to improve the reliability of GSM-R communication system and the stability of CTCS-3 train control service. Finally, this paper deeply analyzes the case of CTCS-3 train control service wireless timeout in Xi'an Railway Administration, combining with GSM-R network performance statistics index and GSM-R network interface monitoring data, This paper analyzes the application of CTCS-3 level train control service wireless connection timeout warning technology in GSM-R network maintenance.
【学位授予单位】：中国铁道科学研究院
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：U284.48;TN929.5

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