GSM-R现网组网方案与建设对比研究

作为承载列控安全信息的通道,GSM-R网络需具备极高的可靠性和安全性,其无线系统组网方案是GSM-R系统规划的重中之重。通过对GSM-R目前常见的两种同址双站和单网交织组网进行对比,从组网复杂度、可靠性、频率规划及网优、网络建设成本等几个方面对GSM-R无线组网进行分析和比较,采用可靠性数学建模方法对两种方案进行数学分析。可靠性对比结果表明系统冗余越多,可靠性越高,但是在实际工程实施时要从多方面综合考虑,并对未来大规模GSM-R改造项目的建设提出相关建议。

Comparative Study on Networking Scheme and Construction of Existing GSM-R Network

As a train operation control information channel,GSM-R( GSM for Railway) network should be highly reliable and safe and its wireless system network scheme is the key in GSM-R system planning.Based on the comparison between the co-located double-site and single network intertwined for GSM-R wireless networking,this paper analyzes and compares the wireless system networking scheme in terms of the networking complexity, reliability, frequency-planning and network optimization, network construction cost,and conducts mathematical analysis of the two schemes based on reliable mathematical modeling. The comparison results show that the more redundant of the system,the more reliable of the system,but comprehensive considerations are required in practical engineering. Relevant suggestions for the construction of future large-scale GSM-R renovation project are put forward.