Apparatus and method of multiple antenna transmitter...

H - Electricity – 04 – B

Patent

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H04B 7/06 (2006.01) H04L 27/26 (2006.01)

Patent

CA 2541600

The present invention provides an apparatus and method of multiple antenna transmitter beamforming of high data rate wideband packetized wireless communication signals, where each of the signals comprises N frequencies, where N is a positive integer. The apparatus, in an exemplary embodiment, includes (1) a transmit beamformer (220) that co-phases and weights the signals for each of the N frequencies across M antennas, thereby generating M co-phased and weighted frequency data and M Inverse Fast Fourier Transform units (IFFTs 230, 232) that convert the M co-phased and weighted frequency data into M digital outputs, and M transmit antennas (260, 262) transmitting the M co-phased and weighted signals, where M is an integer greater than or equal to 2.

La présente invention concerne un appareil et un procédé de formation de faisceau d'émetteur à antennes multiples de signaux de communication sans fil par paquets large bande à débit de données élevé, chacun de ces signaux comprenant N fréquences, avec N entier positif. Dans un mode de réalisation de cette invention, cet appareil comprend (1) un formateur de faisceau de transmission qui met en phase et pondère les signaux pour chacune des N fréquences à travers M antennes, générant ainsi M données de fréquence mises en phase et pondérées et, (2) M unités de transformée de Fourier rapide inverse (IFFTs) qui convertissent les M donnés de fréquence mises en phase et pondérées en M sortie numérique et, M antennes de transmission qui transmettent les M signaux mis en phase et pondérés, avec M entier supérieur ou égal à 2.

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