城市轨道交通车地综合通信系统（LTE-M）枢纽换乘站频段规划方案研究
彭传贤
Research on Frequency Band Planning Scheme of LTE-M System in Urban Rail Transit Hub Interchange Station
PENG Chuanxian
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作者信息:中铁第四勘察设计院集团有限公司，430063，武汉
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Affiliation:China Railway Siyuan Survey and Design Group Co., Ltd., 430063, Wuhan, China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.2023.05.024
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中图分类号/CLCN:U285.5+4
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栏目/Col:研究报告
摘要:
城市轨道交通车地综合通信系统（LTE-M）在枢纽换乘站存在同频干扰问题，需研究干扰源头——枢纽换乘站基站的频率配置方案。以昆明轨道交通4号线和5号线枢纽换乘站火车北站两线LTE-M系统频段规划方案为例，基于LTE-M系统承载业务需求和频段使用实际情况，分析了枢纽换乘站LTE-M系统基站的不同频段异频和同频段异频2种规划方案，以及同频段的全部同频、部分同频和无线网络共享3种规划方案，并比较了各种规划方案的优缺点，提出了各种规划方案的适用性建议。
Abstracts:
Co-frequency interference problem exists in urban rail transit hub interchange station LTE-M (long term evolution-metro) system. The interference source—frequency configuration scheme of hub interchange station base station should be studied. Taking the LTE-M system frequency band planning scheme of Kunming Rail Transit Line 4 and Line 5 hub interchange station Kunming North Railway Station as example, based on the service requirements and actual use of LTE-M system frequency band, two planning schemes of different frequencies in different frequency bands and in the same bands of the LTE-M system are analyzed. For three planning schemes of co-frequency, partial co-frequency and wireless network sharing in the same frequency band, their advantages and disadvantages are compared, and the applicability suggestions of each planning scheme are proposed.
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