Method and device for communication on a communication link...

Details Method and device for communication on a communication link... Method and device for communication on a communication link...

H - Electricity

04

B

H04B 7/185 (2006.01) H04L 9/00 (2006.01) H04L 29/00 (2006.01)

Patent

CA 2644835

The purpose of the invention is a communication method on a communication link between an aircraft and a ground station, the communication possibly being configured according to a plurality of safety levels in which, when the aircraft sends a request to a ground station in order to modify the safety level of said communication from a previous safety level to a new safety level and that it does not receive an acknowledgement of said request by the ground station, this aircraft still accepts messages from the ground station according to said new security level. The invention also relates to a device to implement this method.

L'invention a pour objet un procédé de communication sur une liaison de communication entre un aéronef et une station sol, la communication étant susceptible d'être configurée selon une pluralité de niveaux de sécurité, dans lequel lorsque l'aéronef envoie une requête à la station sol en vue de modifier le niveau de sécurité de ladite communication d'un ancien niveau de sécurité vers un nouveau niveau de sécurité et qu'il ne reçoit pas d'acquittement de ladite requête par la station sol, cet aéronef accepte néanmoins les messages reçus de la station sol selon ledit nouveau niveau de sécurité. L'invention concerne aussi un dispositif pour mettre en AEuvre ce procédé.

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