Real-time clock signal checking device for a mobile phone has a receiver for receiving a reference signal from a base station which is then used to check and adjust the phone's internal time signal

摘要

Device for comparing time information produced by an integral unit within a mobile radio unit or phone with reference time information, whereby the reference time information is derived from a reference time signal transmitted by a base station. The device comprises a clock signal generator, a receiver for receipt of at least a reference time signal and a comparator for comparing the received time signal with the internal time signal. - An INDEPENDENT CLAIM is made for a method for comparing the internal real time of a mobile radio unit or mobile phone with a received reference time signal.