Implied acknowledgement data transport protocol for a...

H - Electricity – 04 – L

Patent

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H04L 12/56 (2006.01)

Patent

CA 2585059

The invention relates to a method of operating a communication network comprising multiple stations, each able to transmit and receive data, so that the network can transmit a message from an originating station to a destination station via at least one opportunistically selected intermediate station. Stations wishing to transmit data transmit probe signals which are responded to by other stations, thereby to identify available stations. When a station has data to send, it transmits probe signals comprising Request to Send messages, identifying the data to be sent. When a station receives such data for onward transmission, it transmits its own probe signals comprising a Request to Send message and including identification information relating to the data. The Request to send messages are received by other stations in the vicinity, so that they serve as an implied acknowledgement of the receipt of the data by the forwarding station without the need for sending explicit confirmation messages. The invention extends to a network for implementing the method.

L'invention concerne un procédé d'exploitation d'un réseau de communication comprenant de multiples stations, pouvant chacune émettre et recevoir des données, de manière que le réseau puisse transmettre un message d'une station de départ à une station destinataire via au moins une station intermédiaire sélectionnée de manière opportune. Les stations désirant transmettre des données transmettent des signaux de sonde auxquels répondent d'autres stations, afin d'identifier des stations disponibles. Lorsqu'une station a des données à envoyer, elle transmet des signaux de sonde contenant des messages de demande d'envoi, identifiant les données à envoyer. Lorsqu'une station reçoit ces données pour leur retransmission, elle transmet ses propres signaux de sonde contenant un message de demande d'envoi et des informations d'identification concernant les données. Les messages de demande d'envoi sont reçus par d'autres stations à proximité, servant d'accusé de réception implicite des données par la station de transmission sans nécessité d'envoi de messages de confirmation explicites. L'invention concerne également un réseau permettant de mettre en oeuvre ledit procédé.

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