Dual rate periodic ranging system to reduce time to...

H - Electricity – 04 – M

Patent

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Details

H04M 11/06 (2006.01) H04L 12/28 (2006.01) H04L 29/14 (2006.01) H04M 1/24 (2006.01) H04J 3/06 (2006.01)

Patent

CA 2400212

In a cable modem system, a method and apparatus is provided to reduce the time to ascertain modem (16) failure by sensing ranging nonresponses and increasing the frequency of the ranging invitations upon detection of a predetermined number of nonresponses. The increased frequency of ranging invitations decreases the time required to ascertain modem (16) failure, modem (16) failure being defined to be a predetermined number of nonresponses, for instance 16. In so doing, a system is provided which minimizes the bandwidth necessary for rapid modem failure detection.

Dans un système de modem câble, on prévoit un procédé et un appareil permettant la réduction de la durée nécessaire à l'identification de pannes d'un modem câble consistant à détecter des non réponses d'ajustement avec le CMTS (ranging) et à augmenter la fréquence des invitations d'ajustement avec le CMTS après détection d'un nombre prédéterminé de non réponses. La fréquence accrue des invitations réduit la durée nécessaire à l'identification de pannes d'un modem câble qui est définie comme étant un nombre prédéterminé de non réponses, par exemple 16. Le système de cette invention réduit au minimum la largeur de bande requise pour la détection de pannes d'un modem rapide.

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