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京沪高铁和沪宁城际并线和交叉区段,存在无线网络干扰及切换问题。由于并线区段及交叉区域的距离非常接近,从无线角度来讲若频率分配稍有不慎或周边地区突发干扰信号就会引起同频干扰、邻道干扰、互调干扰等各种情况的发生,给无线网络优化工作带来了极大的困难。通过对京沪高铁实际地理位置考察、GPS定位、QOS质量及场强图的分析,提出网络优化方案,有效地解决了网络干扰及切换问题。
Beijing-Shanghai high-speed rail and Shanghai-Nanjing intercity and cross-section, there is wireless network interference and handover problems. As the distance between the parallel section and the cross section is very close, if the frequency distribution is slightly inadvertently caused by radio or the interference signal in the surrounding area will cause the same-frequency interference, adjacent channel interference and intermodulation interference, etc. The occurrence of wireless network optimization work has brought great difficulties. Through the analysis of the actual geo-location of the Beijing-Shanghai high-speed railway, GPS positioning, QOS quality and the field strength map, the network optimization scheme is proposed to effectively solve the problem of network interference and handover.