METHOD FOR TRANSMITTING A SIGNAL RELATED TO A CHANGE IN TRANSMISSION FORMAT

摘要

PURPOSE: A transmission method of signals changing the format of transmission is provided to enable information related to changed transmission formats to be used at the transmitting side and receiving side, thereby improving performance. CONSTITUTION: A base station transmits a radio resource control (RRC) message indicating that a first transmission format is changed to a second transmission format to a receiver (S910). If an acknowledgment (ACK) message for the RRC message is not received, the base station repetitively transmits the RRC message along with data based on the first transmission format or data based on the second transmission format to the receiver (S920,S930,S940). The data based on the first transmission format and the data based on the second transmission format, which are transmitted along with the RRC message, are alternately selected.