TRANSMISSION AND RECEPTION METHOD AND APPARATUS FOR QAM SIGNAL IN FILTER BANK MULTICARRIER COMMUNICATION SYSTEMS

摘要

The present invention relates to a method and a device for transmitting and receiving a QAM signal in a filter bank multicarrier communication system. More specifically, the present invention provides an efficient transmission and reception method and an efficient transmission and reception device, wherein good performance can be obtained in transmitting a QAM signal without intrinsic interference in a multi-channel delay channel environment in a filter bank multicarrier communication system. The transmission method in a filter bank multicarrier (FBMC) communication system according to the present invention comprises the steps of: diffusing each of at least two QAM signals, which have been divided into multiple groups, into multiple signals on a frequency axis; crossing at least one signal overlapping with the diffused signal of an adjacent QAM signal among the multiple diffused signals, with the diffused signal of the adjacent QAM signal; filtering the multiple diffused signals having the at least one signal crossed therewith for each of the multiple groups; and overlapping the filtered multiple diffused signals on a time axis and transmitting the filtered multiple diffused signals.