APPARATUS AND METHOD FOR ASSIGNING GROUPS OF SUBCARRIERS IN ORTHOGONAL FREQUENCY DIVISION MULTIPLEX SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide an apparatus and method for assigning groups of sub-carriers in an orthogonal frequency division multiplex (OFDM) system. SOLUTION: In the apparatus and method, data are transmitted through at least one transmit antenna but at least two sub-carriers in a predetermined frequency band are assigned for data transmission. A node groups sub-carriers available to the OFDM system into sub-carrier groups, each having at least two sub-carriers, transmits data to user equipment (UE) on sub-carriers in the sub-carrier groups, selects at least one sub-carrier group based on channel condition information received from the UE about each of the sub-carrier groups, and assigns the selected sub-carrier group to the UE. COPYRIGHT: (C)2005,JPO&NCIPI