System, method, and recording medium for scheduling packets...

H - Electricity – 04 – L

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H04L 12/56 (2006.01) H04L 29/02 (2006.01)

Patent

CA 2616044

A system for scheduling packets to be transmitted is provided. The system includes a soft delay bound calculator module and a frame determination module. The soft delay bound calculator module calculates a soft delay bound for a non- real-time packet based on a packet size of the non-real-time packet and a minimum reserved traffic rate of a channel. The frame determination module determines whether a real-time packet must be transmitted at a current frame according to a delay bound, a transmission time, and a possible retransmission time thereof, and whether a non-real-time packet must be transmitted at a current frame according to a soft delay bound, a transmission time, and a possible retransmission time thereof. Thus, it is possible to improve the performance of the system while keeping the QoS thereof in a mixed service environment.

La présente invention concerne un sytème d'ordonnancement de paquets à transmettre. Le système comprend un module de calcul de limite de temporisation adaptative, et un module de détermination de trame. Le module de calcul de limite de temporisation adaptative calcul une limite de temporisation pour un paquet en temps non réel en se fondant sur la grosseur du paquet de données du paquet en temps non réel, ainsi que le taux de transmission réservé minimum d'un canal. Le module de détermination de trame détermine si un paquet en temps réel doit être transmis à une trame en fonction d'une limite de temporisation, d'une durée de transmission et d'une durée de retransmission dudit paquet, et si un paquet en temps non réel doit être transmis à une trame courante en fonction d'une limite de temporisation adaptative, d'une durée de transmission et d'une durée de retransmission dudit paquet. Il est donc possible d'améliorer le rendement du système tout en maintenant le Qos dudit système dans un environnement de service mixte.

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