目前中国电信在城区的LTE建设已趋于饱和，建设重心逐步向乡镇农村倾斜，由于1800 MHz所处频段较高，在农村广覆盖时存在一定问题，而现有800 MHz的低频特性则相对更适合于广域覆盖。在相同的覆盖目标场景下，通过设定合理的工程参数和设备参数，计算800和1800 MHz 2种频段的最大路径损耗，并选取对应的传播模型，分析两者各自不同的覆盖能力；通过ATOLL仿真平台，结合现网站点参数进行仿真，分析2种频段的下行RSRP、SINR、FTP下载速率等指标差异，验证800 MHz LTE在覆盖上的优势。%At present,China Telecom’s LTE construction in the city has become saturated,the rural area became the focus of construc-tion. Because 1800 MHz is a high frequency,there are some problems in rural wide coverage,however the existing 800 MHz band is more suitable for wide area coverage. In the premise of the same scene,by setting reasonable project parameters and device parameters,calculating the MAPL on 800 MHz and 1800 MHz and selecting the appropriate propagation model,analyz-ing the different covering capacity between the two frequency bands,then according to the simulation results based on the parameters of the network,analyzing the index difference of RSRP,SINR,FTP download speed between the two frequency, verifying 800 MHz LTE advantage in coverage.
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