Now, a configuration diagram of a communication system according to Example Embodiment 2 is described by using FIG. 2. The communication system in FIG. 2 includes user equipment (UE) 60, an evolved Node B (eNB) 70, a serving gateway (SGW) 80, a packet data network gateway (PGW) 90, a policy and charging rules function (PCRF) entity 95 (hereinafter, referred to as a PCRF 95), a mobility management entity (MME) 100, a service capability exposure function (SCEF) entity 110 (hereinafter, referred to as an SCEF 110), a home subscriber server (HSS) 120, and an application server (AS) 130.

The SGW 80, the PGW 90, the PCRF 95, the MME 100, the SCEF 110, and the HSS 120 are node devices configuring an evolved packet core (EPC). The EPC is equivalent to a core network. Moreover, the SGW 80, the PGW 90, and the MME 100 are equivalent to a control device 10 in FIG. 1.

The UE 60 is a generic term of a communication terminal in 3GPP, and is equivalent to a communication terminal 50 in FIG. 1. The UE 60 may be an IoT terminal or an MTC terminal. The eNB 70 is a base station which supports long term evolution (LTE) as a wireless communication method, and is equivalent to a base station 40 in FIG. 1. The UE 60 performs, for example, wireless communication using the eNB 70 and LTE.