| Mobile communication has entered the era of 5GNR(New Radio).the terminal baseband processing chip has become a hotspot and a difficult point in 5GNR technology research.The 5GNR system is complex and extensive for the users,which makes the 5GNR networking complexity need to be balanced,so that the terminal baseband processing chip must have greater scale and complexity,which directly leads to more complicated and difficult chip design and test verification work.Only through manual testing can not no longer significantly improve product productivity and labor efficiency.The research content of this thesis comes from the Sanechips Technologies Co.Ltd.'s "Building Research on 5G-based Automation Platform Based on LTE Direction" project.This paper focuses on 7520 wisefone V3 multi-RAT soft baseband chip products for 5G,Through theoretical research,functional analysis,design implementation and test verification,and then,The research and implementation of automated test method for LTE terminal chip for 5G mobile communication had been accomplished.The main work of this paper includes:(1)Selection of Automation Platform and Framework Design of Automation Platform(2)For the 7520V3 single-RAT functions,protocols,power consumption and performance,The demonstration of automated test method is carried out.The platform adopts the mode of single-step control and asynchronous automatic analysis to the originator.Realize complete separation from manual execution.(3)According to the different terminal configuration of 7520 V3,the automated test results are executed and the final data conclusions are verified.The main achievements of this paper are as follows:(1)The similarities of 5G,Pre5G and 4GLTE test characteristics are analyzed,and the conclusion that LTE automation test is suitable for 5GNR chip test is drawn.Firstly,the mainstream test platform in the industry is analyzed,then the shortcomings of hardware and software are compared.Finally,the self-developed ATPi platform is selected,and on the basis of this platform,four-tier software architecture is designed.(2)For LTE and Pre5G,protocol signaling test data is too large to perform automatic analysis in a short time,In this paper,we adopt the method of real-time disadvantage protocol test breakpoints,segment reading LOG,asynchronous parallel execution offline automatic analysis.We solved the problem and applied for a patent.At the same time,five versions of 7520 V3 data card have been tested automatically and compared with manual test.The efficiency has been improved more than three times,which meets the design requirements.(3)Aiming at the problem that LTE power test data can not be automatically analyzed,a distributed processing method is adopted.The method is to perform parallel analysis with power consumption data and synchronize the time.Then,after the power consumption data is abnormal,ZCATLOG is matched to analyze ZCATLOG.Finally,the problem is output and the power consumption data is recorded automatically.Five versions of 7520 MIFI products have been tested automatically.Compared with manual testing,the efficiency has been improved more than four times,which meets the design requirements.(4)After analyzing the difficulties of performance test automation,the design method considers the coordination between channel fader and terminal attenuator.In the process of automation test and debugging,the attenuation sequence is adjusted.After that,the automatic performance test of 7520EVB shape products is completed.After five rounds of test,it can be concluded that the productivity of performance test is improved at least by automation test.Rise more than twice. |
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