Adaptive sectorization in a spread spectrum communication...

H - Electricity – 04 – B

Patent

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H04B 7/02 (2006.01) H04Q 7/36 (2006.01) H04B 1/69 (2006.01) H04B 1/707 (2006.01)

Patent

CA 2193394

A system and method for adaptively sectorizing channel resources within a digital cellular communication system is disclosed herein. The system includes an antenna arrangement for providing at least first and second electromagnetic beams for receiving a first information signal transmitted by a specific one of a plurality of users, thereby generating first and second received signals. A first set of beam-forming signals are then generated from the first and second received signals. A demodulating receiver is provided for demodulating at least first and second beam-forming signals included within the first set of beam-forming signals, thereby producing first and second demodulated signals. The system further includes a tracking network for tracking multipath information signals, received from various positions and angles of incidence, based on comparison of the first and second demodulated signals.

L'invention concerne un système et un procédé de sectorisation adaptative des ressources en canaux dans un système de communication cellulaire numérique. Le système utilise un groupement d'antennes pour fournir au moins un premier faisceau et un second faisceau d'ondes électromagnétiques, permettant de recevoir un premier signal d'information transmis par un utilisateur particulier d'une pluralité d'utilisateurs (22), en générant ainsi un premier signal et un second signal reçus. Un premier jeu de signaux conformateurs de faisceaux est alors généré, à partir du premier signal et du second signal reçus, par un réseau conformateur de faisceaux (224) et une matrice de commutation (228). On prévoit des récepteurs de démodulation (230) pour démoduler au moins le premier signal et le second signal conformateurs de faisceaux présents dans le premier jeu de signaux conformateurs de faisceaux, ce qui permet de produire un premier signal et un second signal démodulés. Le système comprend en outre un réseau (240) pour détecter les signaux d'information se propageant par trajets multiples, arrivant de différentes positions sous différents angles d'incidence.

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