Conducting handoff of a data transmission

H - Electricity – 04 – Q

Patent

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Details

H04Q 7/38 (2006.01) H04Q 7/24 (2006.01) H04Q 7/22 (2006.01)

Patent

CA 2215620

During a wireless communication of data in which modems (21, 24) are in use, a method of handing off the communication link (32) is described. The communication link (32) is handed off from a source base site (22) to a target base site (23). An interworking function (33) is then transfered from a source interworking unit (25) to a target interworking unit (26) by transfering protocol status (42) such as transmission control protocol. A cut over (34) from the source modem (21) to a target modem (24) is conducted once the interworking function (33) is transfered.

L'invention concerne un procédé de transfert de la liaison de communication (32) au cours d'une communication de données par voie radio, dans laquelle sont utilisés des modems (21, 24). La liaison de communication (32) est transférée depuis un site de base source (22) jusqu'à un site de base cible (23). Une fonction d'interconnexion (33) est ensuite transférée depuis une unité d'interconnexion source (25) jusqu'à une unité d'interconnexion cible (26) par le transfert de l'état et du protocole correspondants, (42) par exemple protocole de commande de transmission. On effectue un basculement (34) depuis le modem source (21) jusqu'à un modem cible (24) une fois que la fonction d'interconnexion (33) a été transférée.

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