【作者】 臧有克；

【导师】 彭朋；

【作者基本信息】 北京交通大学 ， 通信与信息系统， 2007， 硕士

【摘要】 GSM-R是建立在GSM基础上的铁路专用系统,该系统作为铁路综合通信平台,主要肩负着列控等涉及安全问题的应用,因此网络的运行性能和质量成为铁路运营的关键因素之一,研究铁路环境下GSM-R网络数据传输服务质量问题就显得极为重要。本文主要介绍了电路域QoS测试中传输干扰率的指标,通过对指标的分析指导测试软件的开发和应用。第一章引言对GSM-R系统在列控中的应用现状做了简单的介绍,之后又介绍了传输干扰率的应用状况。第二章介绍了GSM-R数据传输的模式和过程,然后对QoS以及关键性能指标作了介绍,最后分析了两个参数,端到端传输延迟和传输干扰率。第三章首先介绍了数据链路层的协议,其次对传输干扰率作重点分析。第四章在前几章分析的理论基础上,对测试分析软件的设计和开发作了一个介绍,最后附上了一个具体的测试流程作为论证。第五章对全文做出总结,以及提出未来的研究方向。更多还原

【Abstract】 On the basis of GSM, GSM-R is one of specifically systems for the railway. As the platform of the railway integrated communication, it has a great role for the application in the safety field, such as the train control etc. One of the key factors for the railway operation is the performance and quality of the network. To research the quality problem of the GSM-R network data transmission offering in the railway is of great important. This paper mainly describes the index of transmission interference rate during the Qos testing in the circuit domain and Guide the development and application of the testing software by analyzing the index.Chapter I Introduction briefly introduces the application status of the GSM-R in train control. Next, introduce the status of transmission interference rate.Chapter II Introduce the module and process of the GSM-R data transmission, then introduce the Qos and the key performance index. Finally analyze two parameter, end-to-end transfer delay and transmission interference rate.Chapter III Firstly introduces the protocol of the data link layer. Secondly focuses on the analysis of the transmission interference rate.Chapter V On the basis of the analyzing theory in previous chapters, this chapter introduces the design and development of the testing analysis software. At last attach a specific testing process as the demonstration.Chapters VI have a summary for this paper and the research direction for future.更多还原