Active antenna array and method for calibration of the active antenna array
First Claim
Patent Images
1. An active antenna array for mobile communications network comprising:
- a plurality of receive paths carrying receive signals;
a sounding signal generator for generating a sounding signal for sounding at least a portion of at least one of the plurality of receive paths;
a coupler for coupling the sounding signal into at least one of the plurality of receive paths;
a sounding signal extractor for substantially removing the sounding signal from digitised ones of the receive signals to form a wanted signal.
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Abstract
The disclosure relates to an active antenna array for a mobile communication system which comprises a plurality of receive paths, a sounding signal generator generating a sounding signal, and a coupler for coupling the sounding signal into at least one of a plurality of receive paths. A sounding signal extractor substantially removes the sounding signal from digitized ones of the receive signals to form a wanted signal. The disclosure also provides a method for the calibration of the receive path of the active antenna array.
29 Citations
13 Claims
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1. An active antenna array for mobile communications network comprising:
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a plurality of receive paths carrying receive signals; a sounding signal generator for generating a sounding signal for sounding at least a portion of at least one of the plurality of receive paths; a coupler for coupling the sounding signal into at least one of the plurality of receive paths; a sounding signal extractor for substantially removing the sounding signal from digitised ones of the receive signals to form a wanted signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A computer program product comprising a non-transitory computer usable medium having control logic stored therein for causing a computer to manufacture an active antenna array comprising:
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a plurality of receive paths carrying receive signals; a sounding signal generator for generating a sounding signal for sounding at least a portion of at least one of the plurality of receive paths; a coupler for coupling the sounding signal into at least one of the plurality of receive paths; a sounding signal extractor for substantially removing the sounding signal from digitised ones of the receive signals to form a wanted signal.
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Specification