Apparatus for transmitting and receiving data to provide...

H - Electricity – 04 – L

Patent

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H04L 27/26 (2006.01)

Patent

CA 2591273

In the present invention, data generated from a source unit are distributed to at least one bandwidth; the data distributed to the respective bandwidths are encoded in order to perform an error correction; the encoded data are distributed to at least one antenna; a subcarrier is allocated to the data distributed to the respective antennas, and an inverse Fourier transform is performed; a short preamble and a first long preamble corresponding to the subcarrier are generated; a signal symbol is generated according to a data transmit mode; and a frame is generated by adding a second long preamble between the signal symbol and a data field for the purpose of estimating a channel of a subcarrier which is not used.

Dans la présente invention, les données générées à partir d~une unité de source sont distribuées à au moins une bande passante ; les données distribuées aux bandes passantes respectives sont codées afin d~effectuer une correction d~erreur ; les données codées sont distribuées à au moins une antenne ; une sous-porteuse est attribuée aux données distribuées aux antennes respectives, et une transformée inverse de Fourier est réalisée ; un préambule court et un premier préambule long correspondant à la sous-porteuse sont générés ; un symbole de signal est généré selon un mode de transmission de données ; et une trame est générée en ajoutant un second préambule long entre le symbole de signal et un champ de données dans le but d~estimer un canal d~une sous-porteuse qui n~est pas utilisé.

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