A new strategy to implement security in an area using picocell base transceiver station

Communication jamming devices have been adopted in different places where ringing of cell phone is not allowed or security is important. Our proposed mechanism that can be deployed to block the unauthorized mobile station (UMS) for ensuring security, requires a picocell base transceiver station (PBTS) instead of communication jamming device and a simple algorithm which is stored in visitor location register (VLR) and takes decision whether the VLR will send call complete message (CCM) to mobile switching center (MSC) for allowing a traffic channel to MS or block the MS if is not authorized to make a call.