Internet of Vehicles communication test system and test method based on LTE-V

Abstract

The invention discloses an Internet of Vehicles communication test system and test method based on LTE-V. An ENodeB base station, a roadside test unit, a user test terminal, an LTE-V core network anda local server group are adopted to form a test platform, the test system and test method are applied to the field of Internet of Vehicles communication by adopting a mobile communication technology,two technical schemes that are wide-area centralized cellular communication and short-range distributed direct communication are adopted to separately correspond to network architectures based on an access network-user terminal and a ProSe direct communication interface, and thus the large-broadband and wide-coverage communication transmission support can be supported, low-delay and high-reliability communication services between vehicles and vehicles, the vehicles and base stations, and the base stations and base stations can also be achieved, and the needs of road safety and traffic efficiency applications can be met. According to the test method disclosed by the invention, partial performance of the LTE-V network can be tested systematically on the test platform, real vehicle tests in real scenes can provide researchers with more realistic and reliable research data, and the research and application of an LTE-V communication technology in the field of Internet of Vehicles communication can be promoted to a certain extent.

Description

technical field [0001] The invention belongs to the technical field of intelligent transportation, in particular to an LTE-V-based vehicle networking communication test system and test method. Background technique [0002] As one of the important subsystems of ITS, the Internet of Vehicles communication system is the key to ensure smooth information channels among traffic participants, realize functions such as traffic safety and traffic efficiency improvement according to road traffic conditions, and provide passengers with services such as multimedia and mobile Internet applications. where. At present, most of the existing Internet of Vehicles communication systems adopt the DSRC standard, but in areas with dense traffic, DSRC has high information delay and high packet loss rate. In high-speed moving scenes, the Doppler effect is obvious, and the transmission distance is obviously shortened. . Compared with DSRC, LTE-V's anti-interference ability is greatly improved beca...

AI Technical Summary

Problems solved by technology

However, due to the late start of LTE-V, most of the research is to evaluate the system performance through simulation methods, and there are no examples of testing the effectiveness of its transmission by actual measurement methods. Therefore, how to scientifically evaluate it in a real environment will be an urgent An important prerequisite for the development and marketization of related products

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