Method and apparatus for multicast tree management in...

H - Electricity – 04 – L

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H04L 12/18 (2006.01)

Patent

CA 2721472

A method is described including receiving multiple requests for a multicast service, generating parameters associated with binding paths to a multicast tree to provide the requested multicast service and binding the paths to the multicast tree. Also described is a method including receiving a request for multicast service with a multicast tree identification, binding the multicast tree identification to paths satisfying a quality of service level for the multicast tree identification and transmitting a first message to a multi-hop relay base station. A method is described including receiving requests to delete multicast service from client devices served by multiple paths, generating parameters associated with unbinding paths from a multicast tree to delete the multicast service and unbinding the paths from the multicast tree. Also described is a method for unbinding of paths from the perspective of the relay station.

L'invention concerne un procédé comportant les étapes consistant à recevoir des demandes multiples de service de multidiffusion, à générer des paramètres associés à des chemins de liaison jusquà un arbre de multidiffusion afin dassurer le service demandé de multidiffusion et à relier les chemins à larbre de multidiffusion. L'invention concerne également un procédé comportant les étapes consistant à recevoir une demande de service de multidiffusion avec une identification darbre de multidiffusion, à relier lidentification de larbre de multidiffusion à des chemins satisfaisant un niveau de qualité de service pour lidentification de larbre de multidiffusion et à émettre un premier message vers une station de base en relais à sauts multiples. L'invention concerne un procédé comportant les étapes consistant à recevoir des demandes de suppression de service de multidiffusion provenant de dispositifs clients desservis par des chemins multiples, à générer des paramètres associés à des chemins de déconnexion à partir dun arbre de multidiffusion afin de supprimer le service de multidiffusion et à déconnecter les chemins de larbre de multidiffusion. On décrit également un procédé de déconnexion de chemins vus depuis la station de relais.

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