Device and transmission/reception method of figure of package data in mobile communication system

The invention concerns a device and method of transmission/reception of orthogonal frequency partitioning of signals (OFDM) in a mobile communication system. A transmission processor shapes the modulated figure by means of coding, alternations and modulations of a package of physical level which should be transmitted, and disposes the modulated figure in tone of data. The block of parenthesising of tones interposes the protective tone and a tone of a control signal into the data tone. The block of allocation of power of tone erects the different relation of power of tone of a control signal to power of tone of data depending on an interval position in which the figure of package data is included, and proportions power according to the relation of power of tone of a control signal to power of tone of data, and the transmitter transmits a figure of package data.