H - Electricity – 01 – Q
Patent
H - Electricity
01
Q
H01Q 3/26 (2006.01) H01Q 1/24 (2006.01)
Patent
CA 2322941
An improved base station which cancels the effects of known fixed interference sources produces a signal substantially free from the interference sources thereby increasing total channel capacity. The adaptive interference canceler system includes a main antenna for receiving signals from other communication stations and at least one directional antenna directed toward an interference source. The main and directional antennas are coupled to the adaptive canceler, which weights signals received by the directional antennas and sums the weighted signals to produce a cancellation signal. The adaptive canceler subtracts the cancellation signal from the signals received by the main antenna to provide an output signal substantially free from the interference generated by the one or more known interference sources.
L'invention se rapporte à une station de base perfectionnée qui annule les effets de sources de brouillage fixes connues et produit un signal sensiblement exempt de brouillage, ce qui accroît la capacité totale de la voie. Ce système d'annulation adaptative du brouillage comporte une antenne principale conçue pour recevoir des signaux en provenance d'autres stations de communication et au moins une antenne directionnelle orientée en direction d'une source de brouillage. L'antenne principale et l'antenne directionnelle sont couplées à l'annuleur adaptatif qui pondère les signaux reçus par les antennes directionnelles et additionne les signaux pondérés de manière à produire un signal d'annulation. Ledit annuleur adaptatif soustrait le signal d'annulation des signaux reçus par l'antenne principale de manière à produire un signal de sortie ne contenant pratiquement pas de brouillage généré par la ou les sources connues de brouillage.
Mesecher David K.
Ozluturk Fatih M.
Interdigital Technology Corporation
Ridout & Maybee Llp
LandOfFree
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