Physical layer cell ID allocation method of a base station in a wireless communication system and a wireless communication system

摘要

While dividing a limited number of physical-layer cell identities (PCIDs) into a group of PCIDs to be added to macro-cell base stations and another group of PCIDs added to femtocell base stations, a center machine associating with a femtocell base station that applies for PCID addition refers to a table storing therein area information of a plurality of macrocell base stations and femtocell base stations within a wireless communication system to thereby identify the area of a message-transmitted femtocell base station and PCIDs being presently used in this area, selects an unused PCID in this area, and assigns it to the PCID addition-requesting femtocell base station. With such arrangement, while maximally leveraging the limited number of PCIDs in the wireless communication system, PCID setup is automatically performed in such a way as to prevent the PCID from becoming the same as a PCID of its neighboring base station.