叙毕铁路GSM-R系统干扰排查案例分析

Case Analysis of Interference Investigation of GSM-R System in Xuyong-Bijie Railway

通过分析叙毕铁路GSM-R系统建设过程中出现的中国电信CDMA系统对GSM-R网络造成的上行干扰、中国移动GSM系统对GSM-R网络造成的下行干扰等典型案例,讨论GSM-R网络建设维护工作中的外网干扰排查、原因分析及现场试验、整改措施等关键问题,并对GSM-R区段铁路线路重点区域开展常态化干扰监控有关技术要求提出了建议,为工程实践提供参考。

By analyzing uplink interference caused by China Telecom's CDMA system to the GSM-R network,downlink interference caused by China Mobile's GSM system to the GSM-R network and other typical cases in the construction process of GSM-R system of Xuyong-Bijie Railway,this paper discusses the key problems of external network interference detection,cause analysis,field test and rectification measures in the construction and maintenance of GSM-R network,and puts forward suggestions on the technical requirements of normalized interference monitoring in key areas of GSM-R section,which provides reference for engineering practice.