a 36 b 36 c however the terminal device 10 may at least be provided with a communication portion that realizes wide area wireless communication and a communication portion that realizes narrow area wireless communication in the present embodiment it is assumed that the wide area wireless communication base station 12 that forms the communication area a and the wide area wireless communication base station that forms the communication area b shown in fig2 are included in different types of wide area wireless communication networks for this reason the wireless communication portion 36 a that is provided in the terminal device 10 performs communication with the wide area wireless communication base station 12 that forms the communication area a the wireless communication portion 36 b performs communication with the wide area wireless communication base station 12 that forms the communication area b and the wireless communication portion 36 c performs communication with the narrow area wireless communication base station 14 that forms the communication area c note that in the following explanation the wide area wireless communication network in which is included the wide area wireless communication base station 12 that forms the communication area a is called the u201c wide area wireless communication network na u201d the wide area wireless communication network in which is included the wide area wireless communication base station that forms the communication area b is called the u201c wide area wireless communication.