C-V2X Test Data Exchange Progress and Test Interface Definition

V2X function test is the key process in commercialization progress of ICV (intelligent connected vehicle). With the increased demand for test, test data postprocessing and analyzing based test scheme are unacceptable to both Tier1 vendors and vehicle factories, thus the automatic degree of test system is much required to be improved. The bottleneck of V2X automatic test is hard to collect test data in real-time, which is the basis of run-time test. The reason of this dilemma is the lack of test interface. To solve such a problem, our research team is devoted to standardizing test interface, and developing C-V2X test system, which could support both field test and in-chamber test. In this paper, proposed test system is presented, while software architecture is explained. Test interfaces for both test system and DUT (device under test) are given. A concurrency test is done to verify the validity of selected MQTT (Message Queuing Telemetry Transport) mode. FCW (Forward Collision Warning) is selected as example to verify the effectiveness of test system. The test results are helpful to understand the impact of communication indexes on V2X application performance.