Method and apparatus for flow control of data in a mesh network

H - Electricity – 04 – L

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H04L 12/56 (2006.01)

Patent

CA 2624539

Flows admitted to a mesh node may be controlled through contention access parameters. The admitting node may determine a desired transmission opportunity duration, and a transmission opportunity frequency. Furthermore, the node may achieve the flow rate and delay bound requirements of the admitted flow based at least in part upon the desired transmission opportunity duration, and the transmission opportunity frequency. The data rate and the access frequency of the admitted node may be monitored at the physical access level. The flow rate requirement may be accomplished based at least in part upon an adjustment to the transmission opportunity duration. The delay bound requirement may be accomplished at least in part upon manipulation of the contention access parameters. The transmission opportunity duration and the access parameters may be determined by the upstream admitting nodes, which may reduce congestion near mesh portals, and accomplish increased data transfer.

Selon cette invention, les flux admis dans un nAEud maillé peuvent être contrôlés via des paramètres d~accès en mode contention. Le nAEud d~admission peut déterminer une durée voulue de possibilité de transmission et une fréquence de possibilité de transmission. Le nAEud peut en outre satisfaire les exigences en termes de débit et de délai imparti du flux admis selon, au moins en partie, ladite durée voulue et ladite fréquence. Le débit binaire et la fréquence d~accès du nAEud peuvent être contrôlés au niveau accès physique. L~exigence de débit peut être satisfaite, au moins en partie, par un réglage de la durée de possibilité de transmission. L~exigence de délai imparti peut être satisfaite, au moins en partie, par une modification des paramètres d~accès en mode contention. La durée de possibilité de transmission et les paramètres d~accès sont déterminables par les nAEuds d~admission en amont, qui peuvent réduire l~encombrement à proximité des portails maillés, et assurer un transfert de données accru.

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