Frame synchronization method and system

Details Frame synchronization method and system Frame synchronization method and system

H - Electricity

04

J

H04J 3/06 (2006.01) H04L 9/12 (2006.01) H04L 7/04 (2006.01)

Patent

CA 2439287

A method and system for frame synchronization in a digital data transmission. A synchronization word is selected that is suitable for good correlation in a receiver detector. Either traffic bits or control bits are interleaved within the synchronization word in a predetermined pattern that is fixed for consecutive frames. The position of the sync word is varied from frame-to- frame. Also, the interleaved bits that are either traffic or control bits varies substantially between consecutive frames.

L'invention concerne un procédé et un système de synchronisation de trame dans le cadre d'une transmission de données numériques. Un mot de synchronisation convenant à une bonne corrélation est sélectionné dans un détecteur récepteur. Soit les bits de trafic, soit les bits de commande sont imbriqués dans le mot de synchronisation selon un modèle prédéterminé, fixé pour les trames consécutives. La position du mot de synchronisation est modulée d'une trame à l'autre. Les bits imbriqués qui sont soit des bits de trafic, soit des bits de commande, varient par conséquent sensiblement entre des trames consécutives.

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