Apparatus and method for assigning groups of subcarriers in an OFDM system

摘要

An apparatus and method for assigning sub-carriers in an orthogonal frequency division multiplex (OFDM) system are disclosed. In the apparatus and method, data is transmitted through at least one transmit antenna. At least two sub-carriers in a predetermined frequency band are assigned to a communication between a node and a user equipment (UE). The Node groups sub-carriers available to the OFDM system into sub-carrier groups (310,312), each having at least two sub-carriers, transmits data to the UE on sub-carriers in the sub-carrier groups (330), selects at least one sub-carrier group for the UE based on channel condition information received from the UE (350) about each of the sub-carrier groups, and assigns the selected sub-carrier group to the UE (360).