MOBILE COMMUNICATION METHOD AND RADIO BASE STATION

摘要

Even if radio base stations having different lengths of radio base station ID information (eNB ID) are coexistent, an S1 handover can be performed. A mobile communication method comprises a step in which a radio base station of handover source (eNB #0) refers to a predetermined bit that has been set in the cell ID included in the E-CGI included in a measurement report received from a mobile station (UE), thereby determining whether the radio base station of handover destination candidate is a macro-cell radio base station (eNB) or a small-cell radio base station (HeNB).