Data Traffic Offloading and Rate Control for Vehicles Using Radio Environment, Network Load and Route Planning

Abstract

In recent years, it has become common for vehicles to connect to networks via radio access networks to exchange various data. In the future, the number of service providers that provide information to and collect information from vehicles will increase, and the traffic from these service providers may occupy a large portion of the radio resources consumed in the radio access network. Therefore, it is desirable to improve the frequency utilization efficiency of the traffic related to these service providers. In this paper, we provide a quantitative demonstration of the concept of traffic control using the load information on radio access networks that the mobile network operator can collect from its own network, the information on radio environment that the service provider collects, and the route planning of the vehicle to its destination. Specifically, based on the above information, traffic control will be performed within the range where the vehicle can move within the allowable delay time, such as downloading data at points with low load and good radio environment in the downlink, and controlling the streaming rate according to the load and radio environment in the uplink. Computer simulations show that for downlink, both the frequency utilization efficiency and UE throughput during download can be improved, and for uplink, the frequency utilization efficiency can be improved while improving the amount of successfully transmitted data.