Impact of Mobile phone in the Air and Random Access Channel RACH with Time Division Multiple Access TDMA Noise in Aircraft Avionics

Mobile phone already allowed to be used in some commercial airlines and the first standard to be deployed is 1800MHz GSM band. After Many studies and debate, the regulation authorities have spelled out the requirement for picocell and mobile phone to be used in aircraft so as not to be interfered with avionics system in the air. The main objective is to limit the mobile phone at the lowest transmitting power controlled by the picocell installed in the aircraft, at the same time, to prevent the mobile phone from trying to camp on to the Ground Base Station.