SWITCHED BEAM ANTENNA WITH DIGITALLY CONTROLLED WEIGHTED RADIO FREQUENCY COMBINING
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Accused Products
Abstract
A wireless communication system, wherein a sub-set of radio frequency signals received from corresponding antenna elements is selected and combined into a single radio frequency signal, the single radio frequency signal being processed and demodulated in a single processing chain, includes a radio frequency phasing network for co-phasing the selected radio frequency signals before combining and a processor for controlling combining and phasing in order to obtain a single radio frequency signal having a radio performance indicator which satisfies predetermined conditions.
60 Citations
52 Claims
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1-26. -26. (canceled)
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27. A wireless communication system comprising:
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a plurality of antenna elements; a selector for selecting a sub-set of received radio frequency signals from said antenna elements; a combiner for combining said sub-set of received radio frequency signals into a single radio frequency signal; a processing chain for processing and demodulating said single radio frequency signal and for generating at least a radio performance indicator representative of the quality of said single radio frequency signal; and a radio frequency phasing network for co-phasing said selected radio frequency signals before combining in said combiner by applying a phase shift to at least one signal in said sub-set. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 52)
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39. A method of processing a radio frequency signal in a radio communication system, said signal being received by a plurality of antenna elements, comprising the steps of:
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selecting a sub-set of received radio frequency signals from said antenna elements; combining said sub-set of received radio frequency signals into a single radio frequency signal; processing and demodulating said single radio frequency signal for generating at least a radio performance indicator representative of the quality of said single radio frequency signal; and subjecting signals in said sub-set of received radio frequency signals to co-phasing, by applying a phase shift to at least one signal in said sub-set. - View Dependent Claims (40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51)
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Specification