Terminal management means stores information with respect to a terminal that joins a delivery service provided in each cell in a context that serves to manage the information with respect to the terminal. Terminal counting means counts the number of terminals that joins the delivery service in the each cell on the basis of each service using the context stored in the terminal management means. Bearer determination means determines whether to use a point-to-point bearer or a point-to-multipoint bearer for the delivery service in the each cell based on the number of terminals counted by the terminal counting means.