| 南京地铁1号线无线场强改造 |
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| 引用本文： | 刘为苹,汪曙明.南京地铁1号线无线场强改造[J].现代城市轨道交通,2011(2):30-32. |
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| 作者姓名： | 刘为苹 汪曙明 |
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| 作者单位： | 南京地铁运营分公司,助理工程师,江苏,南京,210012 |
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| 摘 要： | 南京地铁1号线无线系统采用EADS公司800M数字集群系统,由交换机、基站、直放站等设备组成,有地下漏缆和地面天线两种无线网络覆盖方式.经过运营使用一段时间后发现无线网络中存在弱场区和通话不良区域,造成越区切换通话中断,主要是覆盖设计不合理的问题.通过时网络原有漏缆及覆盖方式优化改造,使场强友盖达到-85dB以上(95...
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| 关 键 词： | 地铁通信 无线集群 网络覆盖 通话质量 |
Improvement of Wireless Field Strength for Nanjing Metro |
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| Liu Weiping,Wang Shuming.Improvement of Wireless Field Strength for Nanjing Metro[J].Modern Urban Transit,2011(2):30-32. |
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| Authors: | Liu Weiping Wang Shuming |
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| Institution: | Liu Weiping,Wang Shuming |
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| Abstract: | 800M digital cluster system of wireless system in Nanjing metro Line 1 is composed of switches,base stations and repeater stations.This system has two kinds of wireless coverage modes, underground leakage cable and ground antenna.Weak field and loose contact areas are found in wireless network during operation. After the optimization of coverage mode for leakage cable,the field strength coverage would reach more than 85dB,so as to improve the voice quality |
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