Communication method and a radio system

H - Electricity – 04 – L

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H04L 1/00 (2006.01) H04W 72/08 (2009.01) H04L 27/26 (2006.01)

Patent

CA 2723106

The network system of an orthogonal frequency division multi- plexing radio system measures a quality of a signal from a user terminal. At least one compared property of the signal is compared with a predetermined threshold. The comparison includes a comparison involving the measured quality. A number of sub-channels for the user terminal is decreased if each comparison operation indi- cates that a compared property is at the predetermined threshold or within a predetermined range of the threshold. A control signal about a decrease is transmitted to the user terminal. The user terminal transmits with the de- creased number of sub-channels as a response to the control signal.

Le système de réseau d'un système radio à multiplexage par répartition orthogonale de la fréquence mesure une qualité dun signal provenant d'un terminal utilisateur. Au mions une propriété comparée du signal est comparée à un seuil prédéterminé. La comparaison comprend une comparaison qui implique la qualité mesurée. On réduit un certain nombre de sous-canaux du terminal utilisateur si chaque opération de comparaison indique qu'une propriété comparée se situe au seuil prédéterminé ou à l'intérieur d'une plage prédéterminée du seuil. Un signal de commande qui concerne une réduction est émis vers le terminal utilisateur. Le terminal utilisateur émet avec le nombre réduit de sous-canaux, en réponse au signal de commande.

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