The Study And Design Of Lte Network Interfaces Conformance Test Based On TYCN-3

In this thesis, the background is a sub-project named "LTE network interface coherence protocol analyzer" of the national science and technology major projects "a new generation of broadband wireless communications network". This thesis is a study of convenient and simple testing tool for LTE core network and wireless network equipment, solving the problem of the LTE network interface consistency functional verification, speeding up the realization of the network interface consistency, promoting LTE networks to realize commercial and mature.In LTE network, elements greatly simplified, the the signaling data in S1/X2interface can reflect the network operating conditions very well. This thesis focus on the the consistency test case design and implementation of S1/X2interface, describe the testing process and expected results of the test cases in detail, and then design the implementation of each functional unit.Firstly, this thesis is focus on the study of the S1/X2interface protocol stack and the function of the network interface, and design the detailed consistency test case of S1/X2interfaces according to the characteristics of the protocol conformance theory and the features of TTCN-3language. On this basis, make a detailed description of the development of the test case of the LTE network interface consistency protocol, make a detailed description of the core module of the protocol stack, the ASN.1codec module. And also make a detailed description of the design of the protocol adapter. Finally, obtain the test results combined with detailing testing process of test cases, and make specific analysis of the problems presented in the testing process.This thesis is the study of the network S1/X2interface consistency test case, is a key part of "LTE network interface coherence protocol analyzer" project. Signaling collected from S1/X2interface can fully reflect the network performance, and through the analysis of signaling processes, we can locate and analyze the problems very good, and then enabling network optimization. LTE technology has many advantages, including high-bandwidth, high-speed peak rate, low latency, and so on. And LTE is rapidly becoming the mainstream technology fot the next generation communication system pursued by the communications industry. Internationally, the LTE-based mobile communications network construction has started. Speed up the network interfaces to achieve consistency can actively promote the LTE industry development in our country.