Method for transmitting data by means of a carrier current

Details Method for transmitting data by means of a carrier current Method for transmitting data by means of a carrier current

H - Electricity

04

B

H04B 3/54 (2006.01)

Patent

CA 2524224

The invention relates to a method for transmitting data over a carrier current using a frequency band. According to said method: the frequency band is divided into N sub-bands, N being a whole number higher than, or equal to, two; an OFDM (Orthogonal Frequency Division Multiplexing) technique is carried out on each of said sub-bands; and calculations are carried out based on each sub-band. The inventive method is characterised in that the calculations based on each sub-band are independent from the calculations based on the other sub-bands, and said sub-bands are dynamically activated and allocated. The invention also relates to modulation and demodulation devices for carrying out said method.

La présente invention se rapporte à un procédé de transmission de données sur courant porteur utilisant une bande de fréquence consistant à .bullet. découper ladite bande de fréquence en N sous-bandes, N étant un entier supérieur ou égal à deux ; .bullet. mettre en oeuvre une technique OFDM (Orthogonal Frequency Division Multiplexing) sur chacune des dites sous-bandes ; effectuer des opérations de calcul sur chacune des sous-bandes ; caractérisé en ce que .bullet. les calculs réalisés sur chacune des sous-bandes sont indépendants des calculs réalisés sur les autres sous-~bandes ; .bullet. les dites sous-bandes sont activées et allouées de façon dynamique. La présente invention se rapporte également à un équipement de modulation et démodulation pour la mise en oeuvre du procédé.

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