Method for unlicensed band port to autonomously determine...

H - Electricity – 04 – B

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Details

H04B 7/00 (2006.01) H04B 7/005 (2006.01) H04B 17/00 (2006.01) H04Q 7/20 (2006.01)

Patent

CA 2243202

Radio ports (RPs) in an unlicensed personal communications system adaptively, autonomously set their interference threshold and/or transmission power levels. This may be done by the RP measuring the signal level on each of the available channels and then setting the interference threshold and/or power level according to these measurements. In a preferred method (600), the interference threshold is determined by measuring the signal level on each channel (604), ranking the channels in order of measured signal level, and using these rankings to determined the threshold (606). The transmission power level may be set with reference to the adaptive interference threshold level. This level is determined by using the system and FCC power limitations and current conditions to provide a satisfactory transmission level.

Les points d'accès radio (RP) d'un système de communications personnelles non autorisé fixent de façon adaptative et autonome leur seuil d'interférence et/ou leur niveau de puissance d'émission. Pour cela, le RP mesure le niveau de signal de chaque canal disponible, puis établit le seuil d'interférence et/ou le niveau de puissance en fonction de ces mesures. Dans un procédé préféré (600), le seuil d'interférence est déterminé par la mesure du niveau de signal de chaque canal (604), le classement des canaux dans l'ordre du niveau de signal mesuré, puis par l'utilisation de ce classement pour déterminer le seuil (606). On peut fixer le niveau de puissance d'émission en prenant pour référence le niveau du seuil d'interférence adaptatif, que l'on détermine en utilisant les limitations de puissance du système et du Conseil Fédéral des Communications (FCC) et les conditions courantes, de façon à obtenir un niveau d'émission satisfaisant.

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