H - Electricity – 04 – L
Patent
H - Electricity
04
L
H04L 27/01 (2006.01) H04B 1/40 (2006.01) H04B 1/62 (2006.01) H04L 1/00 (2006.01) H04L 25/03 (2006.01) H04L 27/20 (2006.01) H04Q 7/22 (2006.01)
Patent
CA 2229182
The present invention refers to a transmission/reception unit that exchanges data with a remote unit by means of a channel using distributed modulation/demodulation treatment means. The transmission/reception unit includes equalization means (23) to equalize a first signal received from said remote unit and predistortion means to predistort a second signal transmitted to said remoteunit. According to the invention, the unit is characterized in that the modulation/demodulation treatment means operate in a non-linear way and the unitincludes means (230) to store information that is representative of a non-lineardistortion of said modulation/demodulation treatment means and which defines a non-linear reference, and means (233) to adjust coefficients (CO) in the equalization means (23) according to the signal received from the remote unit and said representative information, the mentioned adjusted coefficients being transmitted to said predistortion means.
Unité émettrice-réceptrice échangeant des données avec une unité à distance au moyen d'un canal utilisant des moyens de traitement de modulation/démodulation répartis. L'unité émettrice-réceptrice comprend des moyens d'égalisation (23) pour égaliser un premier signal reçu de l'unité à distance et des moyens de prédistorsion pour prédistordre un deuxième signal transmis à l'unité à distance. Suivant l'invention, l'unité se caractérise par le fait que les moyens de traitement de modulation-démodulation fonctionnent de façon non linéaire. Elle comprend des moyens (230) de stocker l'information qui représente une distorsion non linéaire du moyen de traitement de modulation-démodulation et qui définit une référence non linéaire, et des moyens (233) d'ajuster les coefficients (CO) des moyens d'égalisation (23) en fonction du signal reçu de l'unité à distance et de l'information représentative, les coefficients ajustés étant transmis aux moyens de prédistorsion.
Burriel Lluna Rafael
Casajus Quiros Francisco Javier
Fernandez Duran Alfonso
Nunez Leon de Santos Gregorio
Paez Borrallo Jose Manuel
Alcatel
Alcatel Alsthom Compagnie Generale D'electricite
Robic
LandOfFree
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