Soft handover by distinguishing indirect and direct wave relation of base station in microcell environment

摘要

The present invention relates to a soft handover method for performing a soft handover according to an indirect wave and a direct wave in consideration of a sudden decrease in signal strength due to a corner effect, which is an electromagnetic wave characteristic of a microcell in a mobile communication system, When the mobile station moves from an intersection to an indirect base station by performing a handover to a base station 1 or a base station 3 in an indirect wave relationship in advance, the communication quality of the received signal due to the corner effect is prevented from dropping and the forced termination rate of the handover call is reduced There is an effect that can be reduced.