Method for selection antenna

PURPOSE: An antenna selecting method is provided to reduce interference of other base station by intelligently selecting a multi-directional antenna including optimal wireless channel environment. CONSTITUTION: A home apparatus selects an optimal antenna according to a long term state mode(S110). The home apparatus determines an idle state mode of the home apparatus(S120). The home apparatus monitors a short term timer in the idle state mode(S130). When the short term timer is completed, the home apparatus selects the optimal antenna according to a short term idle state mode(S140).