Communication system, storage medium, and communication method

Abstract

A communication system includes: a plurality of roadside units installed in respective areas that acquires travel information about a vehicle through radio communication; a first terminal connected to the plurality of roadside units; and a server that executes control as a control plane to acquire the travel information from the roadside unit, predict the roadside unit belonging to the plurality of roadside units and installed in an intended area where the vehicle is predicted to travel and predict arrival time at the intended area based on the acquired travel information, and manage communication through the roadside unit and the first terminal so as to construct a communication path between the predicted roadside unit and the first terminal before the arrival time.