What is BSIC (Base Station Identity Code)?

The Base Station Identity Code (BSIC) is a code utilized in GSM to extraordinarily recognize a base station. The code is required because it is possible that mobile stations receive the broadcast channel of more than one base station on the similar frequency. This is because of frequency re-use in a cellular organization. This is a code in GSM which is communicated on the Synchronization Channel in order to distinguish the Network Colour Code and the Base Station Colour Code.