Patent ID: 8009627
Filing Date: 2011-08-30
Classification: H04L,H04W

Abstract:
1. A method for providing an inter-working function between a portable Internet system and a different type of system other than the portable Internet system, which provide a continuous communication service in case a mobile communication terminal coupled to the portable Internet system attempts to have access to said different type of system, the method comprising the steps of: (a) receiving a MAC management message from a base station of the portable Internet system when the mobile communication terminal connects itself to the portable Internet system, wherein the MAC management message defined in the portable Internet system contains a base station identification to which an Access Network Identification (ANID) used in the portable Internet system is mapped as the same length as an ANID used in a different type of system other than the portable Internet system; (b) extracting the base station identification from the MAC management message; (c) acquiring the ANID used in the portable Internet system for identifying the network to which the mobile communication terminal is connected, from the base station identification; and (d) transmitting the ANID used in the portable Internet system to said different type of system when the mobile communication terminal moves to a coverage of said different type of system.