Security method and system for supporting discovery and communication between proximity based service terminals in mobile communication system environment

Abstract

A device-to-device (hereinafter referred to as “D2D”) discovery for D2D communication and a related security method during the D2D communication are provided when a proximity based service (hereinafter referred to as “prose”), prose discovery, prose communication, and the D2D communication are performed in a mobile communication network, and thus a device for performing communication is capable of carrying out a security method for the prose discovery and the prose communication. User Equipment (UE) discovers different UE from each other, performs authentication when performing terminal-to-terminal communication, and is capable of performing safe communication by receiving and verifying security related information. It is possible to carry out the authentication and control by the UE or by the assistance of a base station (eNB). Accordingly, communication efficiency and security can be enhanced by enabling a terminal (device) to mutually provide or receive information between terminals or by the assistance of a network, to receive security key related information, or to perform a security procedure using the security key in an environment, such as an Evolved Universal Terrestrial Radio Access Network (hereinafter referred to as “EUTRAN”), or a Universal Terrestrial Radio Access Network (hereinafter referred to as “UTRAN”)/GSM/EDGE Radio Access Network (hereinafter referred to as “GERAN”).

Dependencies are inferred from the claim text.