H - Electricity – 04 – J
Patent
H - Electricity
04
J
H04J 3/06 (2006.01) H04J 13/00 (2006.01) H04Q 7/38 (2006.01)
Patent
CA 2365007
A method and system that enables faster acquisition of the forward link signal of a target base station in a mixed network of synchonous and asynchronous base stations is disclosed. The serving base station transmits in a neighbor list an estimated timing error (417) between the serving base station and a target base station. By utilizing the timing information, a mobile station estimates the relative time offset (408) between forward link signals received from the serving base station and signals received from the target base station. Timing information acquired during handoff enables accurate updating of the estimated timing error (417) subsquently transmitted in the neighbor lists by the base stations.
L'invention concerne un procédé et un système permettant une acquisition plus rapide du signal liaison vers l'avant d'une station de base cible dans un réseau mixte de stations de base asynchrones et synchrones. La station de base de desserte transmet dans une liste de voisinage une erreur de rythme estimée (417) entre la station de base de desserte et une station de base cible. A l'aide de l'information de rythme, une station mobile évalue le décalage de temps relatif (408) entre les signaux liaison vers l'avant envoyés par la station de base de desserte et les signaux envoyés par la station de base cible. Les informations de rythme acquises pendant le transfert permettent une mise à jour exacte de l'erreur de rythme estimée (417) transmise par la suite dans les listes de voisinage par les stations de base.
Jou Yu-Cheun
Odenwalder Joseph P.
Sarkar Sandip
Shanbhag Abhijit
Terasawa Daisuke
Qualcomm Incorporated
Smart & Biggar
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