OTFS BASIS ALLOCATION METHOD IN WIRELESS COMMUNICATION SYSTEM USING OTFS TRANSMISSION SYSTEM

摘要

A method for a terminal for receiving OTFS basis allocation information in a wireless communication system using an OTFS transmission system comprises the steps of: receiving, from a base station, control information comprising information for OTFS basis size (N); and receiving data from OTFS bases, of a set size and indexed according to a previously defined rule, from an NxN OTFS transform matrix in time and frequency domains corresponding to the OTFS basis size, wherein the OTFS bases of OTFS basis size (N) are expressed by the NxN OTFS transform matrix, and in the NxN OTFS transform matrix, a row index expresses a cyclic frequency shift index and column index expresses a cyclic time shift index, and the indexing according to the previously defined rule indexes OTFS bases of a set size in the order that maximizes the cyclic frequency shift and cyclic time shift in the NxN OTFS transform matrix.