| 摘要 |
The present invention relates to a method of controlling interference in a heterogeneous network environment. The method of controlling interference in a heterogeneous network environment comprises: a first step of measuring, by a terminal located in a coverage area of a macrocell base station, signal strengths of the macrocell base station and a small cell base station, and broadcasting or unicasting, by the small cell base station, data having a cell range expansion (CRE) value; a second step of transmitting a CRE flag value to the small cell base station by performing a hand-off to the small cell base station according to a result of comparison of the signal strengths of the small cell base station and the macrocell base station, which is obtained from the first step; and a third step of individually counting terminals located in a region of CRE and terminals located in a coverage area of the small cell base station based on the CRE flag value received through the terminal at a predetermined period for measurement, and transmitting counting data to the macrocell base station. |
