Flexible Carrier Aggregation for Home Base Station in IMT-Advanced System

Support of wider bandwidth up to 100 MHz is one of the key features for IMT-Advanced system. Carrier aggregation has been studied as major a solution. For home base station (H-BS), there are still more details need to be elaborated due to complicated deployment scenarios. In this paper, three possible carrier aggregation solutions for H-BS are studied and the performances are evaluated. According to analysis on simulation results, flexible carrier aggregation schemes should be adopted, especially autonomous carrier management. In addition, when H-BS is deployed co-channel with macro base station (M-BS), additional interference mitigation solutions would be needed for both H-BS and M-BS.