Patent ID: 8781478

Claim:
A handover control apparatus controlling a handover process between a terminal and a first base station wirelessly connected with the terminal to establish a wireless data communications link, the handover process wirelessly connecting the terminal to a second base station different from the first base station, the handover control apparatus comprising: a threshold value storage section that stores a threshold value of an electric wave state, the stored threshold value being associated with a moving speed that serves as a parameter, the threshold value being varied to be higher as the moving speed becomes greater; a speed detection section that detects a moving speed of the terminal; and a central processing unit configuring a determination section that determines a start of the handover process connecting the terminal to the second base station when an electric wave state becomes lower than the threshold value, which is stored in the threshold value storage section and associated with the moving speed detected by the speed detection section, the electric wave state being between the terminal and the first base station wirelessly connected with the terminal, and a correction section that corrects the threshold value stored in the threshold value storage section based on a minimum electric wave state, which is an electric wave state undergone in a precedent handover process, which precedes a following handover process being a handover process that will be started, so as to reduce a decline of an electric wave state in the following handover process, the correction section being further configured to calculate a difference between (i) the minimum electric wave state undergone in the precedent handover process and (ii) a predetermined lower limit, and reflect the difference on the threshold value stored in the threshold value storage section such that as the minimum electric wave state is decreased farther from the predetermined lower limit, the threshold value becomes higher to start the handover process at an earlier stage and complete at an earlier stage.