1. Field
The following technology relates to a technology that reduces interference in a macro cell communication system when the macrocell and a small cell use the same radio resources.
2. Description of Related Art
Recently, an interest in small cell communication systems, such as a femtocells, picocells, and the like, have increased. Unlike macrocells permanently installed by service providers, the small cells may be freely installed by users. At least one macrocell and at least one small cell may construct a hierarchical cell communication system.
The hierarchical cell communication system may establish at least one small cell in a predetermined location, to obtain a high capacity of system resources in the predetermined location. However, interference may occur in the macrocell due to the small cell. The interference may reduce system throughput and cause a loss of data.