The Design And Implementation Of LTE-A Terminal Service Test

With the rapid development of mobile Internet, the corresponding end-user demand for mobile data services is also increasing rapidly,LTE-Advanced with a wider spectrum, higher spectrum efficiency, and faster transmission rate, the future diversity of terminal services and complexity is the inevitable trend of terminal development. Terminal business performance and stability will be directly related to the user experience. Terminal service test can quickly locate the terminal business function defects, improve the terminal application performance, is the key to the development of the industry.In this paper, the author proposes the LTE-A terminal service test scheme and the TTCN-3 executable test suite. This paper mainly completes the function of writing the test cases and designing the data processing module, analyzing and debugging the business test cases. To meet the needs of mobile terminal business testing, improve user satisfaction with the performance of the terminal business data.This paper first summarizes the LTE-A terminal data service and signaling flow, and gives the function and hardware and software architecture of the terminal service test system. Secondly, the LTE-A service test function scheme is analyzed from the business process point of view. Based on the theoretical basis of protocol conformance testing,the test scheme of LTE-A terminal service test function is designed and implemented. Completed the LTE-A terminal data service test system based on TTCN-3 high-level protocol stack and data processing module design and implementation, completed the high-level protocol stack and the underlying adapter between the adapter and debugging work. Finally,the results of LTE-A terminal service test are validated and analyzed, and the solution to the problems encountered in the testing process is made,so that the problem can be solved.The research results of this paper have been successfully applied to the commercial version of LTE-A terminal business test system of a company, and the performance is good and stable.