Method and system for providing bi-directional...

H - Electricity – 04 – N

Patent

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H04N 7/173 (2006.01)

Patent

CA 2330031

In a communications network having a primary communication path, a bi- directional secondary communication path. The primary communication path delivers downstream signals from a headend to a subscriber location. The secondary communication path transmits return signals from the subscriber location to the headend, and also provides an out-of-band transmission path for downstream signaling. The present invention meets the needs in the art by allowing return signals to be transmitted upstream over the secondary communication path, thereby avoiding the consumption of bandwidth in the primary communication path. Moreover, downstream signals which do not need to be transmitted in the downstream band can be transmitted over the secondary communication path, further reducing the consumption of bandwidth in the primary communication path.

L'invention concerne, dans un réseau de communications possédant une voie de communication primaire, une voie de communication bidirectionnelle secondaire. La voie de communication primaire permet d'envoyer des signaux d'aval, d'une tête de réseau à un emplacement d'abonné. La voie de communication secondaire transmet les signaux de retour, de l'emplacement d'abonné à la tête de réseau, et constitue également une voie de transmission hors bande pour la signalisation d'aval. Les procédé et appareil de l'invention répondent aux besoins dans ce domaine, en ce qu'ils permettent la transmission vers l'amont des signaux de retour, par la voie de communication secondaire, ce qui empêche l'utilisation de la largeur de bande dans la voie de communication primaire. De plus, les signaux d'aval qu'il n'est pas nécessaire de transmettre dans la bande d'aval, peuvent être transmis par la voie de communication secondaire, ce qui permet de réduire encore l'utilisation de la largeur de bande dans la voie de communication primaire.

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