西安机场线LTE-M系统干扰保护及网络优化
王鹏
Interference Protection and Network Optimization of LTE-M System on Xi′an Airport Intercity Railway
WANG Peng
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作者信息:中铁第一勘察设计院集团有限公司通信信号设计院， 710043， 西安
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Affiliation:Department of Communication Signal, China Railway First Survey and Design Institute Group Ltd., 710043, Xi′an, China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.2021.05.010
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中图分类号/CLCN:U285.21
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栏目/Col:研究报告
摘要:
各城市轨道交通LTE-M(城市轨道交通车地综合通信系统)系统线网级应用的雏形已经形成。在1.8 GHz频率资源有限且半私有的前提下，实现线路间信号干扰保护，已备受轨道交通建设各方的高度关注。鉴于西安机场线LTEM系统工程实施条件的特殊性及复杂性，以机场线工程应用实践经验为例，阐述主要干扰保护措施和网络优化方案。综合运用理论计算、软件仿真、现场实测、系统网优等手段提升LTE-M系统的抗干扰能力，为其他城市LTEM系统线网级应用的频率规划、工程设计、网络优化提供参考。
Abstracts:
The prototype of the network-level application of the urban rail transit LTE-M system has been formed. Under the premise that 1.8 GHz frequency resources are limited and semi-private, how to achieve signal interference protection between lines has attracted great attention from all parties in urban rail transit construction. In view of the particularity and complexity of the implementation conditions of the LTE-M system project of Xi’an Airport Intercity Railway, taking its practical experience in engineering application as an example, the main interference protection measures and network optimization schemes are elaborated. Theoretical calculations, software simulations, field measurements, system network optimization and other means are comprehensively adopted to enhance the anti-interference ability of the LTE-M system, providing references for frequency planning, engineering design and network optimization of LTE-M system network-level application in other cities.
引文 / Ref:
王鹏.西安机场线LTE-M系统干扰保护及网络优化[J].城市轨道交通研究，2021，24（5）：47.
WANG Peng.Interference Protection and Network Optimization of LTE-M System on Xi′an Airport Intercity Railway[J].Urban mass transit，2021，24（5）：47.
WANG Peng.Interference Protection and Network Optimization of LTE-M System on Xi′an Airport Intercity Railway[J].Urban mass transit，2021，24（5）：47.
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