Dynamic channel configuration in a cellular radio network

H - Electricity – 04 – B

Patent

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H04B 1/707 (2011.01) H04W 28/00 (2009.01)

Patent

CA 2476686

Method and apparatus for determining a transmission configuration for a dedicated channel in a wireless communication system. In one embodiment, an optimum configuration is determined based on minimizing Peak-to-Average Ratio (PAR) of the channel. The configuration is defined as a transmission pair of transmission branch and spreading code. The transmission branch may be the In- Phase (I) branch or the Quadrature (Q) branch. PAR analysis may be performed off-line to determine the optimum configuration. In operation, if the spreading code of the optimum configuration is used by another channel, the next best optimum code is used.

L'invention concerne un procédé et un appareil permettant de déterminer une configuration de transmission pour un canal spécialisé dans un système de communication sans fil. Dans un mode de réalisation, on détermine une configuration optimale s'inspirant de la minimisation du rapport de la puissance de crête sur la puissance moyenne (PR) du canal. On définit la configuration comme une paire de transmission d'une branche de transmission et d'un corps d'élargissement. La branche de transmission peut être une branche en phase (I) ou une branche de quadrature (Q). L'analyse PR peut être effectuée hors ligne afin de déterminer la configuration optimale. Lors de l'utilisation, si le code d'élargissement de la configuration optimale est utilisé par un autre canal, on utilise alors le prochain code optimal le plus adapté.

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