全自动运行车辆段运用库库内LTE系统网络布署方案研究
刘斌王子毅
Research on Network Deployment Scheme of LTE System in Fully Automatic Operation Depot Application Library
LIU BinWANG Ziyi
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作者信息:苏州市轨道交通集团有限公司，215004，苏州
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Affiliation:Suzhou Rail Transit Group Co., Ltd., 215004, Suzhou, China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.2022.05.003
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中图分类号/CLCN:U283.2
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栏目/Col:研究报告
摘要:
LTE(长期演进)技术更能够满足城市轨道交通全自动运行系统的需求。全自动运行车辆段运用库内需要高容量的无线数据传输系统，在RRU(远端射频单元)小区带宽资源有限的情况下，可以通过增加RRU小区的方式实现扩容。介绍了全自动运行车辆段不同情况下的LTE系统网络布署方案。建议在运用库设计初期，需考虑LTE系统的容量上限与运用库中间布署物理分隔的必要性。在充分考虑运用库列车并发数据传输需求、带宽资源条件和LTE容量上限的情况下，通过在运用库内增加RRU小区数量及设置物理分隔，可大幅降低同频干扰，可使数据传输速率接近理论峰值，在带宽资源有限的情况下满足数据传输的容量需求。
Abstracts:
LTE (long-term evolution) technology can better meet the needs of urban rail transit FAO (fully automatic operation) system. High-capacity wireless data transmission system is required in FAO depot application library. When the bandwidth resources of the RRU (remote radio unit) cell are limited, capacity can be expanded by adding RRU cells. The network deployment scheme of LTE system under different conditions of FAO depot is introduced. It is suggested that in the early stage of the application library design, the upper limit of LTE system capacity and the necessity of physical separation in the middle of the application library should be considered. In the case of fully considering application library train concurrent data transmission requirements, bandwidth resource conditions and LTE capacity upper limit, by increasing the number of RRU cells and setting up physical separation in the application library, the cochannel interference can be greatly reduced, and the data transmission rate can be close to the theoretical peak value, and the capacity demand of data transmission can be met in the case of limited bandwidth resources.
引文 / Ref:
刘斌, 王子毅. 全自动运行车辆段运用库库内LTE系统网络布署方案研究. 城市轨道交通研究, 2022, 25(5): 12.
LIU Bin, WANG Ziyi. Research on network deployment scheme of LTE system in fully automatic operation depot application library. Urban Mass Transit, 2022, 25(5): 12.
LIU Bin, WANG Ziyi. Research on network deployment scheme of LTE system in fully automatic operation depot application library. Urban Mass Transit, 2022, 25(5): 12.
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