Packet transfer scheme and mobile communication system

Details Packet transfer scheme and mobile communication system Packet transfer scheme and mobile communication system

H - Electricity

04

L

H04L 12/56 (2006.01) H04Q 7/36 (2006.01) H04Q 7/22 (2006.01)

Patent

CA 2183321

In order to provide a packet transfer scheme in which various data can easily be used commonly with other communication methods and a packet can be transferred at a high speed, a mobile communication system comprises a database (20) for storing an identification number of a mobile terminal (40) and location information indicating a zone in which the mobile terminal is currently located, a packet switch (10), and another packet switch (30) capable of communication when the mobile terminal (40) is located in a zone under the packet switch (30). The packet switch (10) inquires of the database (20) about the location information of the mobile terminal (40) when the packet switch (10) receives a packet addressed to the mobile terminal (40). When the mobile terminal (40) is located in the zone under the packet switch (30), the packet is transferred to the mobile terminal (40) through the packet switch (30). Owing to this arrangement, the number of packet switches necessary for transferring the packet to the mobile terminal is two at the most. Thus, the packet can be transferred rapidly.

L'invention a pour objet de créer un système de transmission par paquets permettant le partage de divers type de données avec d'autres système de communication et la transmission de paquets à grande vitesse. Un système de communication mobile comporte une base de données (20) dans laquelle sont mémorisées le numéro d'identification d'un terminal mobile (40) et des informations de position précisant la zone de situation du terminal (40), un central de paquets (10), et un central de paquets (30) permettant d'établir la communication lorsque le terminal (40) se trouve dans une zone prescrite. Lorsque le central (10) reçoit un paquet adressé au terminal (40), il s'enquiert auprès de la base de données (20) de la situation du terminal (40). Lorsque ce dernier se trouve dans la zone prescrite, le paquet est envoyé au terminal (40) par l'intermédiaire du central (30). Ainsi, les paquets sont transmis rapidement puisqu'il faut au plus deux centraux de paquets pour envoyer un paquet au terminal mobile.

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