SERVICE CONTROL APPARATUS, RELAY APPARATUS, FEMTOCELL BASE STATION, COMMUNICATION SYSTEM, CONTROL METHOD, AND PROGRAM

摘要

A service control apparatus provides a PS (Packet Switching) service to UE (User Equipment) that are present in a communication area created by a femtocell base station in an IMS (IP Multimedia Subsystem) network. The service control apparatus includes tunnel establishing means that establishes an IPsec (Security Architecture for Internet Protocol) tunnel with the femtocell base station; and service control means that, when there are requests for provision of the PS service from a plurality of the UE, provides the PS service to the plurality of UE by way of a common IPsec tunnel that was established by the tunnel establishing means.