APPARATUS AND METHOD FOR IMPROVING HIGH-POWER SIGNAL RECEIVING PERFORMANCE USING LOW-POWER SIGNALS

摘要

Provided are an apparatus and method for improving high-power signal receiving performance using low-power signals. The apparatus and the method of the present invention hierarchically modulate primary service data and supplementary information data for supplementing the primary service data, and transmit the modulated data. The primary service data can be modulated into high-power signals and transmitted, and the supplementary information data can be modulated into low-power signals and transmitted.