Preamble detection and synchronization in ofdma wireless...

Details Preamble detection and synchronization in ofdma wireless... Preamble detection and synchronization in ofdma wireless...

H - Electricity

04

B

H04B 7/208 (2006.01) H04W 56/00 (2009.01) H04J 11/00 (2006.01)

Patent

CA 2668633

An embodiment of the invention is a technique for preamble detection and synchronization. A symbol correlation of a sequence of symbols is computed in a correlation window using one of a time-domain correlation and a frequency-domain correlation. The sequence of symbols is received in an orthogonal frequency division multiple access (OFDMA) wireless communication. A symbol is verified from the symbol correlation. The symbol is one of a preamble symbol and a data symbol.

L'invention concerne un mode de réalisation décrivant une technique de détection et de synchronisation de préambules. Une corrélation de symboles d'une séquence de symboles est calculée dans une fenêtre de corrélation au moyen de l'une des corrélations dans le domaine temporel et dans le domaine fréquentiel. La séquence de symboles est reçue dans une communication sans fil à accès multiple par répartition orthogonale de la fréquence(OFDMA). Un symbole est vérifié dans la corrélation de symboles. Le symbole est l'un des symboles sélectionné parmi les symboles de préambules et les symboles de données.

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