HANDOVER APPARATUS AND ITS METHOD ON HISTORY INFORMATION IN WIRELESS NETWORKS, ITS PROGRAM RECORDED COMPUTER-READABLE STORAGE MEDIUM

摘要

PURPOSE: A handover apparatus and a method on history information, program recorded computer-readable storage medium are provided to select a handover target network based on a history utility functions thereby reducing an unnecessary handover. CONSTITUTION: A connection time calculation part(110) calculates the last connection time of a present network. A history utility function calculation unit(120) calculates a history utility function value according to the last connection time. A system utility function calculation unit(130) calculates a system utility function value according to a network environment between candidate networks. A selection function calculation unit(140) calculates a selected function value about the candidate networks using the history and the system utility function value, and the last connection time. The second selecting unit(150) selects one candidate network as a handover target network by comparing the selected function value.