Patent ID: 6529496
Filing Date: 2003-03-04
Classification: H04B,Y02D

Abstract:
A device for limiting a transmission power of an antenna in a time-switched transmission diversity (TSTD) transmitter of a base station of a mobile communication system including at least two antennas, a plurality of user channels, and a switching controller connected to the user channels, for switching user data received through the user channels to the antennas, said device comprising:a data state detector connected to the user channels, for measuring a power of new user data on the user channels; a transmission power detector for measuring transmission powers of signals transmitted through the antennas; and an antenna pattern processor for storing a maximum transmission power of the antennas and switching pattern information for previously assigned user data, determining a switching pattern for assigning the new user data to a specific antenna of which transmission power added to a power of the new user data does not exceed the maximum transmission power, and controlling the switching controller and updating the switching pattern information, according to the determined switching pattern.