Method, and system, and base station, and mobile station

Abstract From the Canadian patent

Mobile stations like handsets could cause disturbance at electronic equipment thereby endangering human lifes, and that's why the use of them sometimes at certain places is not allowed, for example inside planes during parts of a flight and inside hospitals. To prevent being dependent upon the user's decency the possible use of the, output of said handset could be deactivated by transmitting a deactivation signal from a base station to the handset, which deactivation signal either only deactivates said use for a predefined time-interval, or deactivates said use all the time until an activation signal originating from said base station has been received by said handset.