| 高速铁路调度指挥GSM-R分组域通信承载能力研究 |
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| 引用本文： | 刘斌,左自辉,王开锋.高速铁路调度指挥GSM-R分组域通信承载能力研究[J].城市轨道交通研究,2017,20(10). |
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| 作者姓名： | 刘斌 左自辉 王开锋 |
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| 作者单位： | 1. 中国铁道科学研究院通信信号研究所,100081,北京;2. 中国铁道科学研究院铁道科学技术研究发展中心,100081,北京;3. 中国铁道科学研究院,100081,北京 |
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| 摘 要： | 通用分组无线业务(GPRS)是)高速铁路车地间数据通信的重要手段之一,随着GPRS承载数据量的增大,必然带来GPRS资源的竞争问题。从高速铁路GPRS应用需求出发,提出了铁路数字移动通信系统(GSM-R)分组域承载能力测试方法,测试不同数据包长度、不同终端数量、不同分组数据信道(PDCH)数量条件下GPRS最大吞吐量,并分析数据包长、GPRS终端数量、PDCH数量与吞吐量的关系,从而为GPRS业务规划提供参考。
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| 关 键 词： | 高速铁路 通用分组无线业务 铁路数字移动通信 承载能力 |
On the Bearing Capacity of GSM-R General Packet Radio Service in High-speed Railway Dispatching Command |
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| LIU Bin,ZUO Zihui,WANG Kaifeng.On the Bearing Capacity of GSM-R General Packet Radio Service in High-speed Railway Dispatching Command[J].Urban Mass Transit,2017,20(10). |
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| Authors: | LIU Bin ZUO Zihui WANG Kaifeng |
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| Abstract: | GPRS is one of the important means of data communication between train and ground for high-speed railway.With the increase of GPRS traffic load,the competition among GPRS resources will inevitably increase.In this paper,a method to test the bearing capacity of GPRS is proposed to meet the requirements of high-speed railway GPRS,it can test the maximum throughput of GPRS under different packet lengths,different user numbers and different PDCH (packet data channel) numbers,the relationship between them is analyzed to provide a reference for GPRS performance planning. |
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| Keywords: | high-speed railway GPRS (general packet radio service) GSM-R(global system for mobile communications-railway) bearing capacity |
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