Method and apparatus for combining space-frequency block...

H - Electricity – 04 – K

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H04K 1/10 (2006.01) H04B 7/02 (2006.01) H04L 1/02 (2006.01) H04L 27/00 (2006.01)

Patent

CA 2587846

A method and apparatus for combining space-frequency block coding (SFBC), spatial multiplexing (SM) and beamforming in a multiple-input multiple-output (MIMO) orthogonal frequency division mutliplexing (OFDM) system. The system inlcudes a transmitter (110) with a plurality of transmit antennas (126) and a receiver (130) with a plurality of receive antennas (128). The transmitter generates generates at least one data stream and plurality of spatial streams (118). The number of generated spatial streams is based on the number of the transmit antennas and the number of the receive antennas. The transmitter determines a transmission scheme in accordance with at least one of SFBC (112), SM (114), and beam forming (122). The transmitter transmits data in the data stream to the receiver based on the selected transmission scheme.

L'invention concerne un procédé et un appareil pour la combinaison du codage en bloc spatio-fréquentiel (SFBC), du multiplexage spatial (SM) et de la formation de faisceau dans un système de multiplexage par répartition orthogonale de la fréquence (OFDM) à entrée multiple sortie multiple (MIMO). Ce système comporte un émetteur doté de plusieurs antennes d'émission et un récepteur doté de plusieurs antennes de réception. L'émetteur génère au moins un train de données et plusieurs trains spatiaux. Le nombre de trains spatiaux générés est basé sur le nombre d'antennes de transmission et le nombre d'antennes de réception. L'émetteur détermine un mécanisme de transmission en fonction du SFBC, du SM et/ou de la formation du faisceau. L'émetteur envoie au récepteur les données contenues dans le train de données, en fonction du mécanisme de transmission sélectionné.

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