Method and apparatus for determining cell timing in a...

H - Electricity – 04 – J

Patent

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H04J 11/00 (2006.01)

Patent

CA 2692856

Techniques for determining the timing of a cell in a wireless communication system are described. A user equipment (UE) may obtain received samples that include at least one synchronization signal generated based on a cell identity (ID) of a cell. The UE may correlate the received samples with the at least one synchronization signal in the time domain at different time offsets to obtain energies for multiple timing hypotheses. The UE may identify at least one detected peak based on the energies for the multiple timing hypotheses. The UE may then update a set of candidate peaks based on the at least one detected peak and may identify a candidate peak with signal strength exceeding the signal strength of a peak being tracked. The UE may provide the timing of the identified candidate peak as the timing of the cell.

La présente invention concerne des techniques pour déterminer la temporisation d'une cellule dans un système de communication sans fil. Un équipement d'utilisateur (UE) peut obtenir des échantillons reçus qui comprennent au moins un signal de temporisation généré sur la base d'une identité cellulaire (ID) d'une cellule. L'UE peut mettre en corrélation les échantillons reçus avec le ou les signaux de temporisation dans le domaine temporel à différents décalages de temps afin d'obtenir des énergies pour de multiples hypothèses de temporisation. L'UE peut identifier au moins un pic détecté sur la base des énergies pour les hypothèses multiples de temporisation. Il peut alors mettre à jour un ensemble de pics candidats sur la base du ou des pics détectés et peut identifier un pic candidat ayant une intensité de signal dépassant celle d'un pic suivi. L'UE peut fournir la temporisation du pic candidat identifié comme la temporisation de la cellule.

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