摘要
GSM-R作为铁路专用的通信技术,正在世界铁路范围内得到越来越广泛的应用,推动着各国铁路行业的不断发展。随着GSM-R网络规划和建设工作的逐步展开,设备之间互操作性的重要程度将不断增加。
智能网SCP与MSC/SSP之间的L接口测试此次展开大规模测试属于首例,没有标准的测试规范和相关技术规范可参考,导致测试中出现了很多认识分歧问题。故对L接口的测试急待研究。
本文在一年的GSM-R综合数字通信网络互联互通测试工作基础上,理论结合实践,一方面提出了L接口的用例评估标准,并在此基础上形成一套L接口测试建议用例,从横向和纵向两方面完善现有的测试用例。另一方面,本文对L接口测试的关键技术进行研究,其中包括测试方法的研究,以及L接口的协议分析和关键业务的互操作性分析。首先在测试的方法和经验总结上提出一些测试方法供测试参考。然后按照测试用例的分类,对每一种业务测试时可能出现的问题进行总结,并针对每一种问题给出相应的协议参考。已有的只给出了规范名称,而本论文给出的详细协议都是现有规范中的空白部分,是在大量测试基础上分析研究出的协议。
本文对L接口整个测试过程进行了分析,从设计测试用例到研究测试方法再到分析各种可能出现的测试问题,并提出相应的解决方法,在此基础上研究总结了现有规范中部分空白的协议及未定义的业务,且解决了L接口遗留的测试问题。本论文得出的研究结果对今后的GSM-R综合数字通信网络互联互通L接口测试有较好的工程参考和指导作用。
As a special railway communications technology, GSM-R is now increasingly widely used in the field of the world railway, and contributes to the development of railway industry. As GSM-R Network layout and construction begins, the interoperation of defferent equipments becomes more and more important.
It's the first time such a large-scale testing of L interface-between Intelligent Network SCP and MSC/SSP. So there is not normal test specification and related technic specification to rely on. And many problems about realization bifurcation come out.
Basing on the deep analyzation and research on the GSM-R integrate digital communication network IOT test which last for one year, this paper bring forward the ecaluation criterion of L interface test cases, and form a a suit of more integrity and reasonable test cases on L interface, consummating the test cases by landscape and portrait orientation. Secondly, the paper research on the key points on L interface, including test methods and L interface protocol analyze and key service IOT analyze. According to the classification of test cases, summarize all possible problems come out when testing, and put forward the corresponding resolvent. The protocol exists in the specification just mentions the name, while the protocle this paper particularly describes is the research harvest basing on a great deal of testing, to fill up the bland of the specification in existence.
This paper analyze the whole process of L interface tesing, from designing test cases to how to test, and lastly how to resolve the problems comes out, including bring forward the new resolvement of the testing problems left. The research harvest can be used to engineering reference and guidance of GSM-R GSM-R digital communication network IOT L interface testing.
引文
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