APPARATUS AND METHOD FOR RESOURCE RESERVATION IN A MOBILE IP SYSTEM

摘要

A resource reservation device in a mobile IP(Internet Protocol) system and a method thereof are provided to enable an AR(Access Router) to predict mobile ratios of each of neighboring ARs by monitoring handoff history and to reserve resources according to the prediction, thereby reducing signaling overheads and a waste of bandwidths. When a mobile node performs handoff to adjacent neighboring ARs, a counter unit(206) counts handoff times to store the counted handoff times as handoff history. A handoff ratio calculator(208) calculates handoff ratios to the respective neighboring ARs by using the handoff history at preset intervals, and stores the calculated handoff ratios. When generation of a resource reservation event is sensed, a bandwidth calculator(210) individually measures ratio bandwidths to the neighboring ARs by using the handoff ratios, and demands resource reservation of the measured respective ratio bandwidths.