DEVICE AND METHOD FOR PROVIDING TIME SWITCHED TRANSMISSION DIVERSITY IN MOBILE COMMUNICATION SYSTEM

摘要

The transmitting device has a plurality of transmission antennas (A, B), RF (Radio Frequency) transmitters as many as the transmission antennas and connected to their corresponding transmission antennas, for outputting signals on a forward link, a controller (600) for generating a switch controlling signal in a non-overlapped time cycle, an orthogonal modulator (615, 617) for modulating a transmit signal by an orthogonal code, a spreader (619) for spreading the output of the orthogonal modulator, and a switch (621) connected to an output terminal of the spreader, for connecting the output of the spreader to a corresponding transmitter based on the switch controlling signal. According to another feature of the present invention, a receiving device in a mobile station of a mobile communication system has a pilot channel receiver for detecting a pilot channel signal from an input forward link signal and generating estimated phase and time values, a controller for generating a selection control signal based on cycle information and switching pattern information, in synchronization of a reference time to a base station, a selector for selectively outputting the estimated phase and time values received from the pilot channel receiver based on the selection control signal, and a traffic channel receiver for detecting a traffic channel signal at the selected estimated time position and correcting a phase error of the detected traffic channel signal based on the estimated phase value, for signal decoding.