Automatic repeat request (arq) communication system using...

Details Automatic repeat request (arq) communication system using... Automatic repeat request (arq) communication system using...

H - Electricity

04

L

H04L 1/00 (2006.01) H04L 1/18 (2006.01)

Patent

CA 2679056

A communication system includes a plurality of nodes forming a wireless mesh network. A plurality of wireless communication links connect the nodes together. Each node is formed as a communications device having a physical layer and a media access control (MAC) layer in accordance with the Open System Interconnect (OSI) model and operative for transmitting and receiving communications packets to and from other nodes via the wireless communication links in an Automatic Repeat Request (ARQ) mode. The physical layer monitors channel parameters of the wireless communications link when in an ARQ mode and, based on the channel parameters, communicates to the MAC layer over-the-air (OTA) parameters used for transmitting packets.

Le système de communication selon l'invention comprend une pluralité de nAEuds formant un réseau maillé sans fil. Une pluralité de liaisons de communication sans fil relie les nAEuds entre eux. Chaque nAEud est conçu comme un dispositif de communications possédant une couche physique et une couche de contrôle d'accès au support (MAC) conformes au modèle d'interconnexion de systèmes ouverts (OSI). Ces couches servent à transmettre et à recevoir des paquets de communications vers et à partir d'autres nAEuds par le biais des liaisons de communication sans fil en mode de demande de répétition automatique (ARQ). La couche physique surveille les paramètres de canal de la liaison de communications sans fil en mode ARQ, et elle communique à la couche MAC, sur la base de ces paramètres de canal, des paramètres de liaison radio (OTA) utilisés pour la transmission de paquets.

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