Method and apparatus for transmitting signal in a communication system

The present invention is an orthogonal frequency division multiple access (OFDMA: Orthogonal Frequency Division Multiple Access) wireless broadband access to use the method (BWA: Broadband Wireless Access) method and apparatus for transmitting a signal in a time windowing (windowing) processing in a communication system relate to. The present invention To this end, there is provided a method for transmitting signals in a communication system, guard interval, and a first of the previous symbol interval, the signal interval included in the previous symbol of the current symbol including a valid symbol interval is continuous with the guard interval the process of storing a signal and, by overlapping the signal stored in the first period, the on signal of a second interval included in the current symbol to be continuous with the previous symbol and the windowing processing of the current symbol, the processing windowing It comprises the step of transmitting a signal. Broadband wireless communication system, an orthogonal frequency division multiple (OFDM: Orthogonal Frequency Division Multiplexing), windowing, error vector magnitude (Error Vector Magnitude: EVM).