SYSTEM AND METHOD FOR MINIMIZING OF HANDOFF INTERRUPTION TIME BY SIMPLIFYING AUTHORIZATION PROCEDURE FOR HANDOFF FOR USE IN HIGH-SPEED PORTABLE INTERNET NETWORK

摘要

The present invention relates to a system and method for minimizing delay time due to handoff through simplification of an authentication procedure according to handoff in a portable Internet network.;The present invention provides a handoff notification in which a serving BS includes a security context as a target BS in a portable Internet network including a mobile subscriber station (MSS), a serving base station (BS), and a target base station (HO-Pre). If the MSS 100 transmits a RNG_REQ (Ranging Request) message to the target BS 220, the target BS 220 determines the authentication by HMAC Digest of the received RNG_REQ message, and determines the result. As a result, a delay time due to a handoff through the creation of a RNG_RSP (Ranging Response) message including authentication required information and a simple handoff of an authentication procedure according to the handoff of performing an authentication procedure by sending an RNG_RSP message to an MSS. Provide a system and method of minimization.;According to the present invention, the burden on the CPU of the target BS processing the authentication is reduced, and the time required for the authentication procedure performed after the handoff is reduced, thereby minimizing the delay time due to the handoff.