Patent ID: 7924777

Claim:
An apparatus for controlling inter-cell interference using a transmission priority of a non-realtime data, the apparatus comprising: a priority calculator for calculating uplink priorities of terminals in a cell using a user requested data transfer rate of each cell; a condition determiner coupled to an output of the priority calculator, the condition determiner determining whether a number of terminals provided with an uplink service based on uplink priority calculated by the priority calculator is larger than a predetermined threshold or not; a resource utilization calculator coupled to an output of the condition determiner, the resource utilization calculator calculating resource utilization of each cell; a cell selector coupled to an output of the resource utilization calculator, the cell selector selecting a cell that generates largest inter-cell interference using the calculated resource utilization of each cell, which is calculated by the resource utilization calculator; and a cell controller coupled to an output of the cell selector, the cell controller sustaining an uplink service within a threshold range according to a determination result output by the condition determiner and interrupting an uplink service of the cell selected by the cell selector, wherein when interrupting the uplink service of the selected cell, the cell controller compares performance increment of the selected cell with performance increment of remaining cells and closes the selected cell if it is determined that gain is generated based on a result of comparing the performance increments.