METHOD FOR IP ADDRESS ALLOCATION OF MOBILE STATION IN MOBILE COMMUNICATION SYSTEM

摘要

A method for allocating a dynamic IP address to an MS(Mobile Station) in a mobile communication system is provided to link a control plane process and a user plane process in an IP-based next generation mobile communication system, thereby reducing the frequency of signal exchange processes for the allocation of an IPv6 address and reducing the entire process delay. A method for allocating a stateless IPv6(Internet Protocol Version6) address to an MS(Mobile Station)(300) comprises the following steps of: allowing the MS to generate an active PDP(Packet Data Protocol) context request message and transmit the active PDP context request message to an MME/UPE(Mobility Management Entity/User Plane Entity)(312); allowing the session management block of the MME/UPE to perform authentication and configuration processes for a stateless IPv6 address auto configuration process; allowing the session management block of the MME/UPE to transmit a router solicitation message included into the active PDP context request message to the IP(Internet Protocol) gateway block of the MME/UPE and allowing the IP gateway block to transmit a router advertisement message to the session management block; acquiring a global IPv6 address; allowing the session management block to transmit an active PDP context accept message to the MS; and allowing the MME/UPE to store the global IPv6 address in a PDP context.