Patent ID: 6061564
Filing Date: 2000-05-09
Classification: H04W,Y02D

Abstract:
A mobile communication device, comprising:a position registration controller which controls a position registration process where a position of said mobile communication device is registered to a base station;a transmitting circuit which transmits a position registration control signal for said mobile communication device which is processed by said position registration controller;a receiving circuit which receives a position registration control signal for said base station to be transmitted from said base station;a high-speed movement judging circuit which judges whether said mobile communication device is moving at a high speed or not by monitoring an interval of position registration;a power source controller which controls a power source to be supplied to functional circuits with an intermittent operation time to be determined by an output of said high-speed movement judging circuit;a power circuit which supplies a power source to said functional circuits except at least said the power source controller; anda battery which supplies said power source to said power circuit;wherein said position registration controller controls said position registration process to be determined by a mobile communication system where said mobile communication device itself is included, outputting a control signal for controlling said power source controller when said mobile communication device is out of any service area as the result of a base station search nearby itself, transmitting a control signal necessary for position registration from the transmitting circuit when said mobile communication device is within a service area as the result of said base station search, thereafter receiving said position registration control signal to be transmitted from said base station by said receiving circuit and conducting position registration between said base station and said mobile communication device itself, and outputting said control signal for controlling said power circuit after competing said position registration.