H - Electricity – 04 – W
Patent
H - Electricity
04
W
H04W 24/00 (2009.01) H04W 64/00 (2009.01)
Patent
CA 2482491
Methods and apparatuses for frequency synchronizing basestations in a cellular communication system. In one aspect of the invention, a method to predict a timing of transmission of a basestation in a cellular communication system includes: receiving a first time tag for a first timing marker in a first cellular signal transmitted from the basestation; receiving a second time tag of a second timing marker in a second cellular signal transmitted from the basestation; and computing a frequency related to the basestation using the first and second time tags. Each of the time tags are determined using at least one satellite positioning system signal received at a mobile station which receives the corresponding time marker.
Procédés et appareils pour la synchronisation de la fréquence de stations de base dans un système de communication cellulaire. Selon un aspect de l'invention, un procédé de prédiction de la synchronisation de transmission d'une station de base dans un système de communication cellulaire consiste à : recevoir une première étiquette temporelle pour un premier marqueur de synchronisation dans un premier signal cellulaire émis par la station de base ; recevoir une seconde étiquette temporelle d'un second marqueur de synchronisation dans un second signal cellulaire émis par la station de base ; et calculer une fréquence associée à la station de base au moyen des première et seconde étiquettes temporelles. Chaque étiquette temporelle est déterminée au moyen d'au moins un signal de positionnement de satellite reçu au niveau d'une station mobile qui reçoit le marqueur temporel correspondant.
Qualcomm Incorporated
Smart & Biggar
LandOfFree
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