Mitigating intermodulation interference using channel power...

H - Electricity – 04 – B

Patent

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H04B 15/00 (2006.01)

Patent

CA 2582366

A method for maximizing intermodulation interference protection during a handoff between radio cell sites (300) includes scanning a plurality of radio channels (302) and measuring the signal power (307, 315) for at least one of the radio channels. One or more receiver attenuators (313) are then set based on the detection of intermodulation (IM) interference of the measured channel. The attenuators are then scaled (311) based on the degree of IM interference. If the attenuators cannot mitigate this interference below some predetermined level, the radio channel is changed (321) and the process begins again to ensure a high quality of communication with a cell site.

L'invention concerne un procédé permettant d'augmenter au maximum la protection contre l'interférence d'intermodulation pendant un transfert entre des sites cellulaires radio (300). Ce procédé consiste à balayer une pluralité de canaux radio (302) et à mesurer la puissance de signal (307, 315) pour au moins un des canaux radio. Au moins un atténuateur de récepteur (313) est ensuite réglé en fonction de la détection d'une interférence d'intermodulation (IM) du canal mesuré. Les atténuateurs sont ensuite mis à l'échelle (311) en fonction du degré d'interférence IM. Si les atténuateurs ne peuvent pas atténuer cette interférence en dessous d'un certain niveau prédéterminé, le canal radio est changé (321) et le processus démarre à nouveau afin d'assurer une haute qualité de communication avec un site cellulaire.

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