Data offloading method for interference and mobility management in femtocell systems

In this paper we propose an efficient operation mechanism of interference mitigation and mobility management. The main idea is to schedule radio resources between macrocell and femtocell base stations and pass the desired packet data through a femtocell base station without handover/access to the CSG (closed subscriber group) femtocell. The key benefit of this proposed mechanism is to achieve highly efficient mobility by enabling a CSG femtocell base station to relay data without handover and access to the CSG femtocell, avoiding potential interference and saving radio resource and signaling load on the network. Simulation results have been presented to demonstrate the benefits of the proposed scheme.