摘要:
A method for automatic powering on and turning off of a communications device, comprising: defining a critical zone to be one of within or outside a range of a base station transceiver; sending a location message from one of the communications device and the base station transceiver; responding to the location message if the communications device is within the range; defining a location of the communications device to be within the range if the responding occurs; and triggering the communications device to one of powering on and turning off using the critical zone and the location of the communications device.