Method and apparatus for extending battery life in a digital...

H - Electricity – 04 – Q

Patent

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Details

H04Q 7/32 (2006.01) H04Q 7/22 (2006.01) H04Q 7/38 (2006.01)

Patent

CA 2165657

A method and apparatus is provided for extending the battery life of a cellular radiotelephone. A cellular radiotelephone is conditioned to operate in a pager-only mode wherein the radiotelephone may receive short messages from a base station while conserving battery life by cyclically adopting a deep-sleep state. The base station is notified by the radiotelephone before the radiotelephone enters the deep- sleep state that the radiotelephone is unable to receive messages. After a period of time, the radiotelephone wakes- up, re-establishes contact with the base station and notifies the base station that the radiotelephone is ready to receive messages. After receipt of any messages the radiotelephone repeats the process.

Procédé et appareil permettant d'allonger la durée de vie d'une pile d'un radiotéléphone cellulaire. Un radiotéléphone cellulaire est adapté pour fonctionner sur un mode de réception d'appel uniquement selon lequel ledit radiotéléphone peut recevoir des messages courts d'une station de base tout en préservant la durée de vie de la pile, du fait qu'il entre cycliquement dans un état de sommeil. Avant d'entrer en sommeil, le radiotéléphone informe la station de base qu'il n'est pas en mesure de recevoir des messages. Au bout d'un certain temps, le radiotéléphone se réveille et informe la station de base qu'il est prêt à recevoir des messages. Après réception de messages éventuels, le radiotéléphone répète ledit processus.

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