Abstract: The disclosure is related to controlling an operation bandwidth for a femtocell based on femtocell interference to a macrocell in order to minimize femtocell interference. A femtocell base station may include a measurement unit, a transmitting unit, and a control unit. The measurement unit may be configured to measure an interference amount of a macrocell adjacent to the femtocell base station. The transmitting unit may be configured to transmit the measured interference amount to a system. The control unit may be configured to i) accept an allocated operation bandwidth by the system and ii) control transmission and reception of signals with the allocated operation bandwidth. The operation bandwidth may be adjustable by the system based on the measured interference amount.

Abstract: The disclosure is related to measuring macrocell quality of a macrocell using femtocells. A method may be provided for measuring macrocell quality of at least one macrocell using a femtocell base station. The method may include measuring, by the femtocell base station, macrocell quality of at least one macrocell based on event information, generating macrocell quality report information based on a result of the measuring, and transmitting the generated macrocell quality report information to a server through a femtocell gateway. The measuring macrocell quality may include determining whether a macrocell identifier is present in the event information, measuring the macrocell quality of a target macrocell corresponding to the mermen identifier of the event when the macrocell identifier is present in the event information, and measuring the macrocell quality of substantially all neighbor macrocells when the macrocell identifier is absent from the event information.

Abstract: Provided are femtocell base stations and a management system therefor establishing an X2 interface between femtocell base stations. The method may include obtaining, by the femtocell base station, an Internet Protocol (IP) address of one or more neighbor femtocell base stations, and establishing the X2 interface between the femtocell base station and the neighbor femtocell base station using the corresponding, obtained IP address.