A METHOD AND AN APPARATUS FOR PERFORMING CARRIER AGGREGATION USING MULTIPLE ABS(ALMOST BLANK SUBFRAME) PATTERN IN A MACRO CELL BASE STATION OF A WIRELESS COMMUNICATION SYSTEM WITH HETEROGENEOUS NETWORKS

摘要

According to the present invention, an embodiment of a method for performing a carrier aggregation using multiple almost blank subframe (ABS) patterns in a macro cell base station of a wireless communications system connected to a heterogeneous network, comprises the steps of: deciding an ABS pattern having a mutually different pattern per carrier when arranging two or more different carriers in the macro cell base station and at least one small cell base station; deciding a serving cell for a terminal among a macro cell and a small cell; and performing the carrier aggregation to transfer data to the terminal from the macro cell base station and the small cell base station by using the decided ABS pattern in accordance with the decided serving cell.