Method and apparatus for estimating the channel quality in a...

H - Electricity – 04 – Q

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H04Q 7/38 (2006.01)

Patent

CA 2335594

A technique for estimating the quality of an unmeasureable channel in a time division multiple access radio telecommunication network is disclosed. In an embodiment of the invention, the estimate of the unmeasurable channel is based on samples from other time slots or channels on the same carrier frequency in the same cell. By way of example, a plurality of quality measurements, which may include the interference, bit error rate (BER), frame erasure rate (FER), and burst quality (BQ) are performed on associated channels of the same carrier frequency and cell as the unmeasurable channel. The quality is based on the suitable maximum value of the estimated values derived from the associated channels. The method is applicable to either uplink or downlink signal measuring techniques and provides an effective means for estimating intrafrequency channels that are closely correlated.

L'invention concerne une technique permettant d'estimer la qualité d'un canal non mesurable dans un réseau de radiotélécommunication à accès multiple par répartition dans le temps. Selon un mode de réalisation de l'invention, l'estimation du canal non mesurable est basée sur des échantillons provenant d'autres créneaux temporels ou d'autres canaux. Par exemple, une pluralité de mesures de qualité, notamment l'interférence, le taux d'erreur binaire, le taux d'effacement de trames, et la qualité d'éclatement, sont réalisées sur des canaux associés se trouvant sur la même fréquence porteuse et dans la même cellule que le canal non mesurable. La qualité est basée sur la valeur appropriée maximale parmi les valeurs estimées dérivées des canaux associés. Ce procédé peut être appliqué aux techniques de mesure du signal montante ou descendante, et il constitue un moyen efficace d'estimation de canaux de même fréquence hautement corrélés.

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