H - Electricity – 04 – B
Patent
H - Electricity
04
B
H04B 1/00 (2006.01) H04W 56/00 (2009.01) H04B 7/00 (2006.01)
Patent
CA 2484504
A method of wireless communications according to one embodiment of the invention includes obtaining a first time base (e.g. obtaining a code phase) from a signal received from a ground transmitter (e.g. a CDMA base station). A predetermined offset based on at least a propagation delay of the received signal is applied to the first time base to obtain a second time base. For example, the second time base may be aligned to a time base of a positioning satellite system (e.g. the NAVSTAR GPS). A timing signal is generated that has a code phase based on the second time base.
Selon un mode de réalisation de l'invention, un procédé de communications sans fil consiste à obtenir une première base temporelle (par exemple, l'obtention d'une phase de code) d'un signal reçu d'un émetteur terrestre (par exemple, une station de base CDMA). Un décalage prédéterminé fondé sur au moins un retard de propagation du signal reçu est appliqué à la première base temporelle, de manière à obtenir une seconde base temporelle. Par exemple, la seconde base temporelle peut être alignée sur une base temporelle d'un système de positionnement par satellite (par exemple, le GPS NAVSTAR). Un signal de synchronisation est produit et il comprend une phase de code fondée sur la seconde base temporelle.
Qualcomm Incorporated
Smart & Biggar
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