Channel estimation for communication systems

Details Channel estimation for communication systems Channel estimation for communication systems

H - Electricity

04

L

H04L 1/00 (2006.01) H04L 25/02 (2006.01)

Patent

CA 2497739

An improved channel estimation is disclosed. In one embodiment, initial channel estimation is performed using known training data sequence. The data packet received is demodulated based on the initial channel estimates, de- interleaved and decoded. The decoded data is then is re-encoded, interleaved and modulated to generate additional training symbols for updating the channel estimates throughout the received data packet.

L'invention concerne une estimation de canal améliorée. Dans un mode de réalisation, une estimation de canal initiale est effectuée au moyen d'une séquence de données d'entraînement connue. Le paquet de données reçu est démodulé en fonction des estimations de canal initiales, désentrelacé et décodé. Les données décodées sont ensuite rechiffrées, enterlacées et modulées de manière à générer des symboles d'entraînement supplémentaires permettant de mettre à jour les estimations de canal par l'intermédiaire du paquet de données reçu.

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