LTE (long term evaluation) technology based vehicle-road communication testing platform and testing method

Abstract

The invention discloses an LTE technology based vehicle-road communication testing platform and a testing method. The platform comprises an eNodeB base station, an LTE core network, an application server cluster, a network management server, vehicle-mounted testing units and a road field testing lane, wherein the LTE core network, the application server cluster and the network management server are connected mutually; a convergence exchanger is connected with the eNodeB base station; the whole road field testing lane is covered with wireless signals of the eNodeB base station; high-definition cameras are mounted on the road field testing lane and connected with a video monitor server; and the vehicle-mounted testing units exchange information with the eNodeB base station. According to the testing platform and the testing method, the 4th generation mobile communication technology LTE is introduced into an ITS (intelligent transportation system) vehicle-road communication system, the vehicle-road communication testing platform and the testing method for the true environment are provided and used for performing quantitative evaluation on kernel parameters in the vehicle-road information interaction process, and a brand new solution and a verification platform are provided for vehicle-road communication application of vehicle remote monitoring, traffic information publish, wideband data transmission between a vehicle and a road and the like.

Description

technical field [0001] The invention belongs to the technical field of intelligent transportation, and relates to a vehicle-road communication test platform and a test method, in particular to a vehicle-road communication test platform and a test method based on LTE technology. Background technique [0002] As one of the important subsystems of ITS, the vehicle-road communication system is the key to ensure smooth communication channels between traffic participants, realize safety warning and efficient guidance for road driving, and provide passengers with professional multimedia and mobile Internet application services. At present, most of the existing vehicle-road communication systems use IEEE802.11-based wireless communication technology as the main access method, such as Wi-Fi, WAVE, DSRC, etc., which can realize vehicle-road communication when moving at low speed or at rest. The above-mentioned technologies have shortcomings such as small coverage, frequent switching a...

AI Technical Summary

Problems solved by technology

At present, most of the existing vehicle-road communication systems use IEEE802.11-based wireless communication technology as the main access method, such as Wi-Fi, WAVE, DSRC, etc., which can realize vehicle-road communication when moving at low speed or at rest. The above-mentioned technologies have shortcomings such as small coverage, frequent switching and connection to roadside equipment during the movement of vehicles, and inability to provide high-quality guarantees for various multimedia information services, making it difficult to meet the needs of future development of intelligent transportation.

In order to overcome the above shortcomings, in recent years, some scholars and research institutions have begun to focus on the LTE technology with longer coverage, higher spectrum utilization, and faster transmission rates. However, based on this 4G mobile communication technology in China The development of the vehicle-road communication system is still in its infancy, and most of the research is to evaluate the system performance through the simulation method, and there are few examples of verifying the effectiveness of its transmission by the actual measurement method. Therefore, how to carry out scientific and rigorous research on it in the real environment Quantitative evaluation will be an important prerequisite for accelerating the development and marketization of related products

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