Research On Functional And Interoperability Testing Of E-interface In GSM-R Network

The objective of GSM-R network development is to establish a unified national mobile telecommunications network in China, and the equipment interoperability between the different manufacturers is a prerequisite for achieving goals. Research on interoperability testing technology is the foundation to finish the testing work well. Based on GSM-R network E -interface interoperability testing, this paper do in-depth studies from the two aspects of functionality and interoperability.On the aspect of functional testing, this paper represents the concept of functional testing and focuses on the functional test suite design. Based on the in-depth study of GSM-R network E-interface services and considering the completeness and redundancy of the test suite, equivalence class method is used to design the test suite, and then an analysis of its inadequate is conducted and a new design method is proposed .The two methods are compared and a suggestion on how to design a GSM-R network interoperability test suite is given.On the aspect of interoperability testing, this paper introduces the actuality of interoperability testing development and relations between interoperability test and functional test. Research the application of interoperability testing technology on the GSM-R network E-interface, including the case design, test environment configuration, analysis of test case. Then analyze the above artificial test methods' defects and point out that its formal description is the most important issue to eliminate defects, and finally introduce the concept of communication multi-port state machine and give a voice group call interoperability model.The case design methods and testing methods in this paper contribute to a better test for interoperability testing work.