Method of synchronisation within a base station system

H - Electricity – 04 – W

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H04W 56/00 (2009.01) H04J 3/06 (2006.01)

Patent

CA 2749427

The method of synchronisation of a reference frequency of a base station transceiver (BTS), to the reference frequency of a base station controller (BSC) comprises a sequence of steps, wherein synchronisation packets are transmitted and provided with a time stamp of transmission and a time stamp of reception. An evaluation network delivery is evaluated upon finalization of a period of observation. If high enough, a confidence level is established of the received synchronisation packets. Only if the confidence level is above a threshold, a correction to the reference frequency of the oscillator in the base station transceiver is applied.

L'invention concerne un procédé de synchronisation d'une fréquence de référence d'un émetteur/récepteur de station de base (BTS) sur la fréquence de référence d'un contrôleur de station de base (BSC) comprenant une séquence d'étapes et selon lequel des paquets de synchronisation sont émis et dotés d'un repère d'horodatage d'émission et d'un repère d'horodatage de réception. La remise à un réseau d'évaluation est évaluée lors de la finalisation d'une période d'observation. Si elle est suffisamment élevée, un niveau de confiance des paquets de synchronisation reçus est établi. Une correction de la fréquence de référence de l'oscillateur dans l'émetteur/récepteur de station de base n'est appliquée que si le niveau de confiance est supérieur à un seuil.

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