Multiple code channel power control in a radio communication...

H - Electricity – 04 – B

Patent

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Details

H04B 7/005 (2006.01) H04B 7/26 (2006.01)

Patent

CA 2294396

Methods of controlling the power levels of transmitted signals in telecommunication systems are described. A user may be assigned a plurality of radio bearers associated with a plurality of physical channels for communicating with a radiocommunication system. A fast power control loop monitors a reference channel and adjust transmit power in accordance with an SIR target value. A plurality of slow power control loops adjust the SIR target value and also provide offset transmit power values associated with each physical channel to adapt the transmit powers in accordance with varying quality requirements between radio bearers.

La présente invention concerne un procédé de commande des niveaux de puissance des signaux émis dans un système de télécommunications. Une pluralité de porteuses radio, associées à une pluralité de canaux physiques, peuvent être affectées à un utilisateur de façon à communiquer avec un système de radiocommunications. Une boucle rapide de commande de puissance, qui surveille un canal de référence, adapte la puissance d'émission en fonction d'une valeur cible du rapport signal - interférence. Une pluralité de boucles lentes de commande de puissance corrige la valeur cible du rapport signal - interférence correspondant à chacun des canaux physiques de façon à corriger les puissances d'émission en fonction de divers impératifs variables de qualité entre porteuses radio.

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