APPARATUS AND METHOD FOR SUPPORTING TIME-QUADRATURE AMPLITUDE MODULATION IN A WIRELESS COMMUNICATION SYSTEM

摘要

A method for supporting Time-Quadrature Amplitude Modulation (TQAM) in a wireless communication system includes generating a transmission symbol identified by a combination of a QAM symbol and a position of a time resource to which the QAM symbol is mapped, shifting at least one QAM symbol among QAM symbols contained in the transmission symbols with respect to a time axis, and readjusting a constellation point of the QAM symbol on the basis of a shifting quantity. A method for operating a receive end comprises receiving a reception symbol identified by a combination of a QAM symbol and a position of a time resource to which the QAM symbol is mapped, restoring at least one QAM symbol shifted in a transmit end for uniformizing of the time-axis distribution of QAM symbols contained in the reception symbols, generating decoding metrics for the reception symbol, and performing decoding the reception symbol using the decoding metric.

主权项

1. A method for operating a transmit end in a wireless communication system, the method comprising:
generating a transmission symbol identified by a combination of a Quadrature Amplitude Modulation (QAM) symbol and a position of a time resource to which the QAM symbol is mapped; shifting at least one QAM symbol among QAM symbols contained in the transmission symbols with respect to a time axis; and readjusting a constellation point of the QAM symbol based on a shifting quantity.