Statistical calibration of wireless base stations
First Claim
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1. A method for calibrating a radio receiver having a plurality of antennas configured into an array, the method comprising:
- receiving a plurality of signals from a plurality of remote transmitters at the antenna array;
sampling the signals received at at least two antennas of the array;
computing a relative phase and amplitude of the sampled signals for each sampled signal for each antenna;
averaging the computed phase and amplitude for each antenna for each subsequent sampled signal; and
computing calibration coefficients based on the relative phase and amplitude for the plurality of sampled signals from the plurality of remote transmitters for each antenna by using the average phase and amplitude.
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Abstract
The present invention allows a radio receiver or a transmitter, with a plurality of antennas configured into an array, to be calibrated. In one embodiment, the method includes receiving a plurality of signals from a plurality of remote transmitters at the antenna array, sampling the signals received at at least two antennas of the array, computing a relative phase and amplitude of the sampled signals for each antenna, and computing calibration coefficients based on the relative phase and amplitude for the plurality of sampled signals from the plurality of remote transmitters for each antenna.
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Citations
21 Claims
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1. A method for calibrating a radio receiver having a plurality of antennas configured into an array, the method comprising:
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receiving a plurality of signals from a plurality of remote transmitters at the antenna array; sampling the signals received at at least two antennas of the array; computing a relative phase and amplitude of the sampled signals for each sampled signal for each antenna; averaging the computed phase and amplitude for each antenna for each subsequent sampled signal; and computing calibration coefficients based on the relative phase and amplitude for the plurality of sampled signals from the plurality of remote transmitters for each antenna by using the average phase and amplitude. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A machine-readable medium containing instructions, which when operated on by the machine, cause the machine to perform operations comprising:
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receiving a plurality of signals from a plurality of remote transmitters at each of a plurality of antennas configured into an array, sampling the signals received at at least two antennas of the array; computing a relative phase and amplitude of the sampled signals for each sampled signal for each antenna; averaging the computed phase and amplitude for each antenna for each subsequent sampled signal; and computing calibration coefficients based on the relative phase and amplitude for the plurality of sampled signals from the plurality of remote transmitters for each antenna by using the average phase and amplitude. - View Dependent Claims (21)
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Specification