A method of using resource blocks in a communication system with a plurality of Base Stations, including assigning resource blocks to a first BS, the first BS communicating to a second BS a message comprising information about at least one resource block assigned to the first BS and not planned to be used by the first BS, and the second BS receiving the message. When in operation, the ARMED System will inform the homeownerrenter or business owneroperator as well as local law enforcement including police department and fire department if and when there is intrusion, holdup or fire at the premises. The object of the present invention is to provide a means that detects efficiency of the engine and a means that detects combustion stability of the engine, and to detect the HC discharged quantity until activation of a catalyst at the time of engine start based on efficiency of the engine and combustion stability of the engine.