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文章从重叠区域对网络结构的影响、用户体验角度的语音承载情况、多普勒频偏、及对GL1800SDR基站在高铁上实测情况几个维度对2G+4G与3G+4G在高铁上组网进行对比,并给出相应的规划建设建议。
The article from the overlapping area on the network structure, the voice experience of the user experience, Doppler frequency offset, and GL1800SDR base station measured in the high-speed rail several dimensions of 2G + 4G and 3G + 4G in the high-speed rail network Contrast, and give the appropriate planning and construction recommendations.