COMMUNICATION SYSTEM, FEMTO CELL BASE STATION, AUTHENTICATION DEVICE, COMMUNICATION METHOD, AND COMMUNICATION PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide a communication system for assuring communication security in communication between a femto cell base station and an UE.

SOLUTION: The communication system includes: the UE (User Equipment) and an HLR (Home Location Register) to be used in an IMS (IP Multimedia subsystem) network; and the femto cell base station (Femto AP) organizing a prescribed communication area. The femto cell base station (Femto AP) is a communication system existing between the UE and the HLR, to keep the UE confidential through the use of authentication information corresponding to the UE obtained from the HLR when the UE is authenticated.

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