Base station, mobile station, communication system,...

H - Electricity – 04 – W

Patent

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H04W 28/06 (2009.01) H04W 88/02 (2009.01) H04W 88/08 (2009.01)

Patent

CA 2684838

A reordering method wherein packets to which numbers indicative of an order have been added are transmitted from a base station to a mobile station and then reordered in the numerical order at the mobile station. There are included a step in which packets, which have not been transmitted to a mobile station, or packets, for which no acknowledgment of successful reception has not been received from the mobile station, are forwarded from a source base station to a destination base station, which then transmits those packets to the mobile station, while packets received from a host station are transmitted to the mobile station; a step in which if the destination base station is to transmit the packets received from the host station to the mobile station out of the order, it adds, to those packets, information indicating that those packets are out of the order; and a step in which the mobile station determines that those out-of-the-order packets are not to be reordered, and then performs a reordering process for the packets to be reordered.

L'invention concerne un procédé de réordonnancement dans lequel des paquets auxquels des nombres indicatifs d'un ordre ont été ajoutés sont transmis d'une station de base à une station mobile puis réordonnés dans l'ordre numérique au niveau de la station mobile. Le procédé comprend une étape dans laquelle des paquets, qui n'ont pas été transmis à une station mobile, ou des paquets pour lesquels aucun acquittement de réception réussie n'a été reçu à partir de la station mobile, sont transférés d'une station de base source à une station de base de destination, qui transmet alors ces paquets à la station mobile, tandis que les paquets reçus à partir d'une station hôte sont transmis à la station mobile ; une étape dans laquelle si la station de base de destination doit transmettre les paquets reçus de la station hôte à la station mobile dans le désordre, elle ajoute, à ces paquets, des informations indiquant que ces paquets sont dans le désordre; une étape dans laquelle la station mobile détermine que ces paquets dans le désordre ne doivent pas être réordonnés, puis effectue un procédé de réordonnancement pour les paquets devant être réordonnés.

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