Produits et services

Downloadable communication software for providing access to the Internet; Downloadable communications software for connecting computer network users; Downloadable communications software for connecting global computer networks; Recorded computer software and hardware for data network communications sold as a unit; Telecommunications and data networking hardware, namely, devices for transporting and aggregating voice, data, and video communications across multiple network infrastructures and communications protocols Design, maintenance, development and updating of computer software; Installation, maintenance, and updating of computer software; Services for maintenance of computer software; Computer software consultancy

Abrégé

A method for congestion control in a data communication protocol employing acknowledged communication may include measuring a flight size. A transmission rate may be measured. A trend of the flight size may be determined. A trend of the transmission rate may be determined, and the trend may be derived from a transmission rate gradient calculation, in which either the transmission rate measurements or the transmission rate gradient calculations or both may be filtered to reduce their temporal variability. Whether there is a congestion may be detected according to the determined trend of the transmission rate and the trend of the flight size. Upon detection of the congestion, a change may be made from a current congestion control state to a new congestion control state. Data may be transmitted while respecting a maximum amount of unacknowledged data which the transmitting node may transmit. An apparatus is also disclosed.

Classes IPC  ?

• H04L 47/122 - Prévention de la congestionRécupération de la congestion en détournant le trafic des entités congestionnées
• H04L 47/10 - Commande de fluxCommande de la congestion
• H04L 47/11 - Identification de la congestion
• H04L 47/127 - Prévention de la congestionRécupération de la congestion en utilisant la prévision de congestion
• H04L 47/17 - Interaction entre les nœuds intermédiaires, p. ex. nœud après nœud.
• H04L 47/193 - Commande de fluxCommande de la congestion au niveau des couches au-dessus de la couche réseau au niveau de la couche de transport, p. ex. liée à TCP
• H04W 8/04 - Enregistrement dans un registre de localisation nominal ou un serveur d'abonnés locaux [HSS Home Subscriber Server]

Abrégé

A method for congestion control in a data communication protocol employing acknowledged communication may include measuring a flight size. A transmission rate may be measured. A trend of the flight size may be determined. A trend of the transmission rate may be determined, and the trend may be derived from a transmission rate gradient calculation, in which either the transmission rate measurements or the transmission rate gradient calculations or both may be filtered to reduce their temporal variability. Whether there is a congestion may be detected according to the determined trend of the transmission rate and the trend of the flight size. Upon detection of the congestion, a change may be made from a current congestion control state to a new congestion control state. Data may be transmitted while respecting a maximum amount of unacknowledged data which the transmitting node may transmit. An apparatus is also disclosed.

Classes IPC  ?

• H04L 12/803 - Commande de flux ou commande de congestion Équilibrage de charge, p.ex. répartition du trafic entre multiples liens
• H04L 47/122 - Prévention de la congestionRécupération de la congestion en détournant le trafic des entités congestionnées
• H04L 47/11 - Identification de la congestion
• H04W 8/04 - Enregistrement dans un registre de localisation nominal ou un serveur d'abonnés locaux [HSS Home Subscriber Server]
• H04L 47/127 - Prévention de la congestionRécupération de la congestion en utilisant la prévision de congestion
• H04L 47/10 - Commande de fluxCommande de la congestion
• H04L 47/17 - Interaction entre les nœuds intermédiaires, p. ex. nœud après nœud.
• H04L 47/193 - Commande de fluxCommande de la congestion au niveau des couches au-dessus de la couche réseau au niveau de la couche de transport, p. ex. liée à TCP

Abrégé

A method for congestion control in a data communication protocol employing acknowledged communication may include measuring a flight size. A transmission rate may be measured. A trend of the flight size may be determined. A trend of the transmission rate may be determined, and the trend may be derived from a transmission rate gradient calculation, in which either the transmission rate measurements or the transmission rate gradient calculations or both may be filtered to reduce their temporal variability. Whether there is a congestion may be detected according to the determined trend of the transmission rate and the trend of the flight size. Upon detection of the congestion, a change may be made from a current congestion control state to a new congestion control state. Data may be transmitted while respecting a maximum amount of unacknowledged data which the transmitting node may transmit. An apparatus is also disclosed.

Classes IPC  ?

• H04L 12/803 - Commande de flux ou commande de congestion Équilibrage de charge, p.ex. répartition du trafic entre multiples liens
• H04L 47/122 - Prévention de la congestionRécupération de la congestion en détournant le trafic des entités congestionnées
• H04L 47/11 - Identification de la congestion
• H04L 47/127 - Prévention de la congestionRécupération de la congestion en utilisant la prévision de congestion
• H04W 28/02 - Gestion du trafic, p. ex. régulation de flux ou d'encombrement
• H04L 47/10 - Commande de fluxCommande de la congestion
• H04L 47/17 - Interaction entre les nœuds intermédiaires, p. ex. nœud après nœud.
• H04L 47/193 - Commande de fluxCommande de la congestion au niveau des couches au-dessus de la couche réseau au niveau de la couche de transport, p. ex. liée à TCP

Abrégé

A method for congestion control in a data communication protocol employing acknowledged communication may include measuring a flight size. A transmission rate may be measured. A trend of the flight size may be determined. A trend of the transmission rate may be determined, and the trend may be derived from a transmission rate gradient calculation, in which either the transmission rate measurements or the transmission rate gradient calculations or both may be filtered to reduce their temporal variability. Whether there is a congestion may be detected according to the determined trend of the transmission rate and the trend of the flight size. Upon detection of the congestion, a change may be made from a current congestion control state to a new congestion control state. Data may be transmitted while respecting a maximum amount of unacknowledged data which the transmitting node may transmit. An apparatus is also disclosed.

Classes IPC  ?

• H04L 12/803 - Commande de flux ou commande de congestion Équilibrage de charge, p.ex. répartition du trafic entre multiples liens
• H04L 12/801 - Commande de flux ou commande de congestion

Abrégé

A method and apparatus for congestion control for acknowledged communication over networks detects congestion based on trends of flight size and transmission rate in order to adapt a congestion window in accordance with a detection result. Such congestion detection enables, for example, distinguishing between the congestion with or without unfair competition. Moreover, the measured transmission rate or its trend can be filtered to compensate for time variations. An end node or a proxy can be used for congestion control.

Classes IPC  ?

• H04L 12/803 - Commande de flux ou commande de congestion Équilibrage de charge, p.ex. répartition du trafic entre multiples liens
• H04L 12/801 - Commande de flux ou commande de congestion

Abrégé

The present invention relates to congestion control for acknowledged communication over networks. The congestion is detected on the basis of the trends of both the flight size and the transmission rate in order to adapt the congestion window in accordance with the detection result. Such congestion detection enables, for instance, distinguishing between the congestion with or without unfair competition. Moreover, the measured transmission rate or its trend is filtered to compensate for time variations. The invention may be embodied within an end node or within a proxy.

Classes IPC  ?

• H04L 12/801 - Commande de flux ou commande de congestion