Improved method and arrangement for transferring information...

H - Electricity – 04 – L

Patent

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Details

H04L 12/56 (2006.01) H04Q 7/22 (2006.01) H04Q 7/38 (2006.01)

Patent

CA 2420953

The invention relates generally to a method and an arrangement for transferring information in a packet radio service. Especially the invention applies to transferring delay sensitive data, such as speech and video data, in a mobile cellular telecommunications system. It is an object of this invention to provide a solution, in which the physical connection of a packet radio service is kept reserved also during the passive periods of a session but the same physical resource can still be shared between multiple users. In the present solution after the end of an active period of data transmission a predetermined time period is waited until the connection is released. The length of the time period is informed to the mobile station by the network on a dedicated or on a broadcast channel. The length of the time period is preferably made dependent on the required quality of service value of the connection and on the momentary communication activity in the network or cell.

De manière générale, l'invention concerne un procédé et un système permettant de transférer des informations dans un service de données radio en mode paquets. L'invention concerne en particulier le transfert de données sensibles au délai, telles que des données vocales ou vidéo, dans un système de télécommunication mobile cellulaire. L'objectif de cette invention est d'apporter une solution selon laquelle la connexion physique d'un service de données radio en mode paquets est maintenue en réserve même pendant les périodes passives d'une session tout en permettant le partage d'une même ressource physique entre plusieurs utilisateurs. Selon cette solution, à l'issue d'une période active de transmission de données, la connexion est maintenue pendant un laps de temps prédéterminé. La durée de ce laps de temps est communiquée à la station mobile par le réseau sur un canal dédié ou sur un canal de radiodiffusion. La durée du laps de temps est de préférence liée à la qualité requise pour la valeur de service de la connexion et à l'activité de communication momentanée sur le réseau ou la cellule.

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