SYSTEM FOR CHANGING(SELECTING) A MODULATION METHOD AND METHOD THEREFOR

摘要

The present invention relates to a system for changing/selecting a modulation method which changes/selects the most appropriate modulation method for data transmission using a mobile terminal based on various communication conditions between the mobile terminal and a base station (BS) or the mobile terminal and a neighboring terminal and allows the data transmission to be proceeded according to the changed/selected modulation method. The system comprises the following: a distance measuring unit which measures a distance between a BS and a specific node located in a cell controlled by the BS; an interference level measuring unit which measures an interference level of a signal of the specific node interfered by the other nodes located in the cell; and a modulation method changing/selecting unit which changes/selects a modulation method required for data transmission by the specific node based on the measured distance and the interference level.