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 apparatus for transmitting and receiving a QAM signal in a filter bank-based multicarrier communication system. Specifically, the present invention provides an efficient transmission/reception method and apparatus capable of obtaining good performance in transmitting a QAM signal without intrinsic interference in a multi-path delay channel environment in a filter bank-based multi-carrier communication system. Accordingly, the present invention is a transmission method in a filter bank-based multicarrier (FBMC) communication system, the step of spreading each of the at least two QAM signals divided into a plurality of groups into a plurality of signals in a frequency axis , Crossing at least one signal of the plurality of spread signals overlapping a spread signal of an adjacent QAM signal with a spread signal of the adjacent QAM signal, the plurality of spreading in which the at least one signal crosses And filtering the filtered signals for each of the plurality of groups, and transmitting the filtered plurality of spread signals by overlapping them on a time axis.