摘要
为解决交叉并线场景中无线网络覆盖优化周期长、效率低等运维问题,以西安北交叉并线场景中的GSM-R网络优化为典型应用案例,提出采用射线追踪技术进行无线网络覆盖优化的方案。首先使用射线追踪校正技术,根据实测数据对射线追踪模型进行校正;然后利用校正后的射线追踪模型,仿真复现交叉并线场景下的电磁环境,分析无线信号的覆盖情况。通过对交叉并线场景中的网络问题进行根因分析,提出相应的网络优化方案,并利用校正后追踪模型推演优化后的覆盖效果,对网络优化方案进行评估。实际的优化结果表明,射线追踪技术能够精确还原交叉并线场景中GSM-R网络的无线覆盖问题,预测网络优化方案的覆盖情况,相比基于反复人工测试验证的网络优化方案,降低了优化周期和成本,可供类似场景的网络优化参考。
In order to solve the operation and maintenance problems of long cycle and low efficiency of wireless network coverage optimization in cross and parallel line scenario,taking GSM-R network optimization in Northern Xi’an cross and parallel line scenario as a typical application case,a scheme of wireless network coverage optimization using ray tracing technology in cross and parallel line scenario is proposed.Firstly,the ray tracing correction technology is used to correct the ray tracing model based on the measurement data.Then,the corrected ray tracing model is used to simulate and reproduce the electromagnetic environment in the cross and parallel line scenario,and analyze the coverage situation of wireless signals.Through the root cause analysis of the network problem in the cross and parallel line scenario,the corresponding network optimization scheme is proposed.The corrected tracing model is used to deduce the coverage effect after optimization,and evaluate the network optimization scheme.The actual optimization results show that ray tracing technology can accurately restore the wireless coverage problem of GSM-R network in cross and parallel line scenarios and predict the coverage of network optimization scheme.Compared with the network optimization scheme based on repeated manual testing and verification,it reduces the optimization cycle and cost,and provides reference for network optimization in similar scenarios.
作者
孙鲁泉
刘静
张玉
SUN Luquan;LIU Jing;ZHANG Yu
出处
《铁道通信信号》
2024年第3期39-48,共10页
Railway Signalling & Communication
基金
中国铁路西安局集团有限公司科研课题(N2023022)。
