Time synchronisation for mobile systems

A method of maintaining time synchronisation of a mobile terminal, of a telecommunications network, said mobile terminal having high speed and low speed clocks, in a deep sleep mode, comprising: when a deep sleep mode is entered, making an initial measurement to establish a frequency relationship be...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: BUSSAN, CHRISTOPHER, BRANDT, STEVEN, ABDESSELEM, OUELID
Format: Patent
Sprache:eng ; fre ; ger
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Beschreibung
Zusammenfassung:A method of maintaining time synchronisation of a mobile terminal, of a telecommunications network, said mobile terminal having high speed and low speed clocks, in a deep sleep mode, comprising: when a deep sleep mode is entered, making an initial measurement to establish a frequency relationship between the high speed and low speed clocks, entering a deep sleep mode in which the high speed clock is deactuated, and updating said correlation based on the time of arrival of paging blocks, timed by the low speed clock.