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

H - Electricity – 04 – L

Patent

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Details

H04L 12/56 (2006.01)

Patent

CA 2681127

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 in which the packets are rearranged in the numbered order. In a case where a base station of handover source forwards, to a base station of handover destination, packets, which have not been transmitted to a mobile station, among other packets received from a host station and the base station of handover destination then transmits those packets to the mobile station, data to the effect that the packet relay was executed at the execution of handover sequence is transmitted to the mobile station. In a case where packets are not forwarded to the base station of handover destination but erased, data to the effect that the packet relay is not executed at the execution of handover sequence is transmitted to the mobile station. Based on whether the packet relay is executed or not, the mobile station executes the reordering of received packets or omits it.

L'invention concerne un procédé de réordonnancement dans lequel des paquets, auxquels des numéros d'un ordre ont été ajoutés, sont transmis d'une station de base à une station mobile, les paquets étant réagencés dans l'ordre de numérotation. Dans le cas où une station de base de source de transfert transfère, à une station de base de destination de transfert, des paquets qui n'ont pas été transmis à une station mobile, parmi d'autres paquets reçus à partir d'une station hôte et où la station de base de destination de transfert transmet alors ces paquets à la station mobile, des données dues au fait que le relais de paquets a été exécuté au niveau de l'exécution de la séquence de transfert sont transmises à la station mobile. Dans le cas où des paquets ne sont pas transférés à la station mobile de destination de transfert mais effacés, les données dues au fait que le relais de paquets n'est pas exécuté au niveau de l'exécution d'une séquence de transfert sont transmises à la station mobile. Sur la base du point de savoir si oui ou non le relais de paquet est exécuté, la station mobile exécute le réordonnancement de paquets reçus ou l'omet.

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