A data transmission control method in a radio communication system with a mobile station having a number of antennas and a base transceiver station having a number of antennas, the data transmission control method includes detecting a failure of radio equipment connected to each of the antennas of the base transceiver station or to each of specified groups of the antennas to perform radio communication processing for a connected antenna, and outputting failure information corresponding to the detected failure. The data transmission control method includes determining a failed antenna based on the failure information, and exercising control so that generation processing of transmission code words corresponding to the failed antenna is not performed.