The base station transmission power control apparatus in a mobile communication system and the available channel transmission power control method in a mobile communication system

摘要

PURPOSE: To avoid the effect onto other mobile station and a base station and to save power consumption of the base station by using only one slot among idle channels other than the slot assigned as a speech channel so as to conduct transmission with required transmission power. CONSTITUTION: The system is provided with a speech channel transmission power control section 21A controlling transmission power as to a slot assigned as a speech channel and with an idle channel transmission power control section 22A to select antenna changeover diversity antennas 11A-1, 11A-2 in a mobile station 1A by controlling transmission power to be required transmission power as to only one slot among other slots being idle channels than the slot assigned as the speech channel.