H - Electricity – 04 – L
Patent
H - Electricity
04
L
H04L 12/56 (2006.01) H04B 7/26 (2006.01) H04Q 7/30 (2006.01) H04Q 7/38 (2006.01) H04Q 7/24 (2006.01)
Patent
CA 2247313
Disclosed is a mobile communication system including a network constituted of at least one switching center and a plurality of base stations, and a mobile station which communicates with the base stations simultaneously. The system permits varying transmission delay between the switching center and the base stations according to the type of services available to the mobile station. The object of the present invention is to propose a communication which permits varying transmission delay according to the type of service currently employed, and to promptly recover a synchronization state even if an out-of-sync state happens. To attain the object, a memory means (mobile switching center processor 32) stores transmission delay characteristics corresponding to services which are available to the mobile station. Furthermore, a communication timing setting means (diversity handover trunk 34) determines the timing of communication for the base stations according to the transmission delay characteristic selected according to the service. 66
La présente invention concerne un système mobile de radiocommunication comprenant au moins un central, un réseau incluant une pluralité de stations de base et une station mobile communiquant simultanément avec la pluralité de stations de base, où le délai de transmission entre la station de base et les stations locales varie, en réponse à une pluralité de types de services pouvant être appliqués à la station mobile. Ce système permet d'établir une communication avec un délai de transmission approprié en réponse au type de service et de restaurer une synchronisation même en cas de retrait. Toutefois, un élément de mémorisation (processeur (32) dans une station locale) permettant de mémoriser le délai de transmission de chaque type de service en réponse à la pluralité de types de service pouvant être appliqués à la station mobile. En outre, un élément d'ajustement (cellules (34) de liaison longue distance à transfert en diversité) permettant d'établir des temps de communication pour chacune des stations de base en se basant sur le délai de transmission correspondant au type de service est appliqué à la station mobile.
Ishino Fumiaki
Morikawa Hiroki
Ohtani Tomoyuki
Satoh Takaaki
Tamura Motoshi
Kirby Eades Gale Baker
Ntt Mobile Communications Network Inc.
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