HYBRID MULTI-BAND RECEIVER
First Claim
Patent Images
1. A method, comprising:
- receiving two or more wireless signals at a receiver at two or more receiver paths;
downconverting the two or more received wireless signals using two or more separate complex mixers in the two or more receiver paths to generate two or more intermediate frequency signals based, at least in part, on two or more oscillating signals having individually selectable frequencies received from one or more local oscillators;
combining the two or more intermediate frequency signals to generate a combined signal comprising an in-phase component and a quadrature component; and
converting the combined signal to a digital signal using a single analog-to-digital converter, the digital signal comprising an in-phase component and a quadrature component.
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Abstract
The subject matter disclosed herein relates to a system and method for processing wireless signals received from one or more communications systems. In a particular implementation, one or more signals received from one or more communication systems such as a GNSS may be processed in two or more separate wireless signal receiver paths and combined in baseband to share one analog-to-digital converter.
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Citations
39 Claims
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1. A method, comprising:
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receiving two or more wireless signals at a receiver at two or more receiver paths; downconverting the two or more received wireless signals using two or more separate complex mixers in the two or more receiver paths to generate two or more intermediate frequency signals based, at least in part, on two or more oscillating signals having individually selectable frequencies received from one or more local oscillators; combining the two or more intermediate frequency signals to generate a combined signal comprising an in-phase component and a quadrature component; and converting the combined signal to a digital signal using a single analog-to-digital converter, the digital signal comprising an in-phase component and a quadrature component. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A mobile station, comprising:
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a receiver comprising two or more radio receiver paths to receive two or more wireless signals; two or more separate complex mixers in the two or more receiver paths to downconvert the two or more received wireless signals to generate two or more intermediate frequency signals based, at least in part, on two or more oscillating signals having individually selectable frequencies received from one or more local oscillators; a combiner to combine the two or more intermediate frequency signals to generate a combined signal comprising an in-phase component and a quadrature component; and an analog-to-digital converter to convert the combined signal to a digital signal using a single analog-to-digital converter, the digital signal comprising an in-phase component and a quadrature component. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. An apparatus, comprising:
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two or more separate means for receiving two or more wireless signals; two or more separate means for downconverting the two or more received wireless signals to generate two or more intermediate frequency signals based, at least in part, on two or more oscillating signals having individually selectable frequencies received from one or more local oscillators; means for combining the two or more intermediate frequency signals to generate a combined signal comprising an in-phase component and a quadrature component; and means for converting the combined signal to a digital signal using a single analog-to-digital converter, the digital signal comprising an in-phase component and a quadrature component. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39)
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Specification