Maximum transmitting power limiting device of antenna in transmission switching diversity system and method therefor

PURPOSE: A maximum transmitting power limiting device of antenna in transmission switching diversity system and a method therefor is provided to improve performance relative to costs due to use of a transmission amplifier consuming low power. CONSTITUTION: The maximum transmitting power limiting device of antenna in transmission switching diversity system comprises: at least two antennas; plural user channels; switching units(131) connected to said channel to switch the user data generated through said channel into said antennas; and plural controllers(132) respectively connected to said switching units to control them. The transmitting power aligned to said two antennas is detected when new user data are generated. The value which the user data are added to the transmitting power of an antenna among said antennas having minimum transmitting power is aligned and transmitted to the antenna having less value than prescribed maximum transmitting power limit value.