H - Electricity – 04 – B
Patent
H - Electricity
04
B
H04B 1/707 (2006.01)
Patent
CA 2316226
A system and method for a synchronizing acquisition of a transmitted signal with a local code in a code modulated communication system. The local code is comprised of a replica of the transmitted code. Samples of the transmitted code are correlated with the local code and resulting periodic output samples having indexes are compared with a threshold. Selected indexes of the samples exceeding the threshold are stored and verified for synchronization. Stored correlation indexes which exceed the threshold are combined, and a responder achieves synchronization between transmitted signal and the local code.
L'invention porte sur un système et un procédé permettant de synchroniser l'acquisition d'un signal transmis par un code local d'un système de communication à modulation de code. Le code local comprend une réplique du code transmis. Des échantillons du code transmis sont mis en corrélation avec le code local, et les échantillons d'émission périodique obtenus possédant des indices sont comparés à un seuil. Les indices sélectionnés des échantillons dépassant le seuil sont stockés et vérifiés pour être ensuite synchronisés. Les indices de corrélation stockés qui dépassent le seuil sont associés, et un répondeur termine la synchronisation entre le signal transmis et le code local.
Bottomley Gregory E.
Ramesh Rajaram
Sourour Essam
Ericsson Inc.
Marks & Clerk
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