Method and apparatus for detecting the synchronization...

Details Method and apparatus for detecting the synchronization... Method and apparatus for detecting the synchronization...

H - Electricity

04

L

H04L 1/00 (2006.01) H04L 7/04 (2006.01)

Patent

CA 2498549

In a frame sync method a receiver searches for the presence of an N-symbol long unique word pattern. For each possible frame sync detected, the receiver proceeds to demodulation and FEC processing. After each iteration of the FEC decoder, the detected unique word pattern is compared to the expected one and the frame sync is detected if the number of unique word errors has decreased.

Dans un procédé de synchronisation des trames, un récepteur recherche un motif de mot unique long de N symboles. Pour chaque synchronisation des trames possible qui a été détectée, le récepteur effectue la démodulation et le traitement par correction d'erreurs sans voie de retour (FEC). Après chaque itération du décodeur FEC, le motif de mot unique long qui a été détecté est comparé au motif de mot attendu, et la synchronisation des trames est détectée en cas de diminution du nombre d'erreurs de mot unique.

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