부산대학교 도서관

As an end-to-end wireless communication pipeline of Intelligent Transport System (ITS), LTE-V2X needs to be allocated spectrum resources reasonably and efficiently. In the study of the internet of vehicles, frequency and compatibility verification of LTE-V2X system operating in the 5.9GHz band is the hotspot in this field. Anti-interference testing is a branch of this research. How to rationally define the coexistence limit of LTE- V2X system is the premise of promoting and applying this technology in China. In order to solve this problem, a blocking interference and ultimate safety isolation testing method of 5.9GHz LTE-V2X is proposed in this paper. In the shielded room environment, the V2V / V2I channel of the interfered system and the interference system corresponding to interference source’s maximum leaking power is the worst channel combination. Then, based on the worst channel combination of different interference systems, the packet loss ratio of the equipment under test is obtained through anti-interference testing and we can determine if the V2V / V2I communication link of the interfered system is interfered or not; Finally, analyze the test data and calculate the interference coexistence limits between the LTE-V2X system and different interference systems.