A method of performing phase shift-based precoding and an...

H - Electricity – 04 – L

Patent

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H04L 27/32 (2006.01) H04B 7/04 (2006.01)

Patent

CA 2663087

A method of transmitting data using a phase shift-based precoding in a multiple antenna system using a plurality of subcarriers is disclosed. More specifically, the method includes determining a diagonal matrix to provide different phase angles to each of the plurality of antennas as a part of a phase shift-based precoding matrix, selecting a unitary matrix from a first codebook as the part of a phase shift-based precoding matrix, and performing precoding to symbols associated with subcarriers based on the diagonal matrix and the unitary matrix.

La présente invention concerne un procédé d'émission de données avec précodage par déphasage dans un système multi-antenne à plusieurs sous-porteuses. En l'occurrence, le procédé consiste à déterminer une matrice diagonale pour fournir différents angles de phase à chacune des antennes de la pluralité d'antennes, constituant ainsi une partie de la matrice de précodage à déphasage, à choisir dans un premier code une matrice unitaire venant constituer une partie de la matrice de précodage à déphasage, et à exécuter le précodage sur les symboles associés aux sous-porteuses sur la base de la matrice diagonale et de la matrice unitaire.

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