Orthogonalizing methods for antenna pattern nullfilling

H - Electricity – 01 – Q

Patent

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Details

H01Q 3/26 (2006.01) H01Q 21/29 (2006.01) H04Q 7/36 (2006.01)

Patent

CA 2216365

A method for broadcasting information in a cellular communication system comprising at least one base station with an antenna array and a plurality of mobile stations is disclosed. The common information is preprocessed to create orthogonal signals. The orthogonal signals are then beam formed so that the orthogonal signals are delivered to the different elements in the array antenna. The orthogonal signals are transmitted and then received at at least one mobile station. The signals are then processed at the mobile station to decipher the common information from the orthogonal signals.

La présente invention concerne un procédé d'émission d'information dans un système de communication cellulaire constitué d'au moins une station de base pourvue d'un réseau d'antennes et d'une pluralité de stations mobiles. Les informations communes subissent un traitement préalable consistant à créer des signaux orthogonaux. Ces signaux orthogonaux sont alors conformés en faisceaux de façon à délivrer les signaux orthogonaux aux différents éléments du réseau d'antennes. Les signaux orthogonaux sont émis puis reçus par au moins une station mobile. Ces signaux sont ensuite traités au niveau de la station mobile afin de déchiffrer l'information commune contenue dans les signaux orthogonaux.

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