H - Electricity – 04 – Q
Patent
H - Electricity
04
Q
H04Q 7/36 (2006.01) H04B 7/26 (2006.01) H04J 3/06 (2006.01) H04L 7/04 (2006.01) H04Q 7/24 (2006.01)
Patent
CA 2364785
A time stamp distribution system and corresponding method for a cellular telecommunication network (10), wherein a time distributing master node (20) receives a unique time stamp value from a reliable time source (24), such as a GPS terminal device, and forwards this time stamp value to a plurality of time slave nodes (22a-22c) of the cellular telecommunication system, through the signalling network (14) of the cellular telecommunication network. Upon receipt of the time stamp value, the time slaves nodes can synchronise their own internal clocks (23a-23c), so that time drifts between co-operating cellular nodes are avoided. The time synchronisation sequence can be either manually or automatically initiated from both the master node side and the slave node side.
L'invention porte sur un système horodateur et le procédé associé pour un réseau cellulaire de télécommunications (10), dans lequel un noeud principal de répartition (20) reçoit une unique base de temps d'une source (24) fiable telle qu'un terminal GPS et la retransmet à plusieurs noeuds secondaires (22a-22c) du système cellulaire via le réseau de signalisation (14) du réseau de télécommunications. Au reçu de la base de temps, les noeuds secondaires peuvent synchroniser leurs propres horloges internes (23a-23c), ce qui évite les dérives de temps entre noeuds collaborant. La séquence de synchronisation peut être commandée manuellement ou automatiquement depuis le noeud principal ou les noeuds secondaires.
Bugnon Jacques
Paradis Louis
Marks & Clerk
Telefonaktiebolaget Lm Ericsson
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