Method for calibrating automatic gain control in wireless devices
First Claim
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1. A method for calibrating an AGC in a MIMO-based system, the method comprising:
- transmitting a calibration signal;
receiving the calibration signal;
decoding the calibration signal to produce a measurement;
storing the measurement;
changing an AGC gain setting; and
repeating the transmitting, receiving, decoding, storing, and changing operations to determine an optimal AGC gain setting.
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Abstract
Disclosed herein is an iterative process for calibrating an AGC in a wireless system, wherein the iterative process includes transmitting a calibration signal, receiving the calibration signal, decoding the calibration signal to produce a measurement, storing the measurement and changing an AGC gain setting.
15 Citations
23 Claims
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1. A method for calibrating an AGC in a MIMO-based system, the method comprising:
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transmitting a calibration signal; receiving the calibration signal; decoding the calibration signal to produce a measurement; storing the measurement; changing an AGC gain setting; and repeating the transmitting, receiving, decoding, storing, and changing operations to determine an optimal AGC gain setting. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A Multiple Input Multiple Output (MIMO)-based system, comprising:
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an adjustable gain amplifier that receives a wireless transmission comprising a calibration signal; and a digital processing device that comprises an automatic gain control (AGC) coupled to the adjustable gain amplifier, the AGC controls a gain of the adjustable gain amplifier; wherein the AGC iteratively changes the gain of the adjustable gain amplifier to each of a plurality of gain settings; and wherein the digital processing logic iteratively decodes the calibration signal for each of the plurality of gain settings to produce a plurality of measurements that are stored and used to identify a target AGC gain setting. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A Multiple Input Multiple Output (MIMO)-based system, comprising:
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means for receiving a calibration signal; means for decoding the calibration signal to produce a plurality of measurements, and for processing the produced plurality of measurements; and means for changing a gain of the means for receiving; wherein the means for changing iteratively changes the gain of the means for receiving to each of a plurality of gain settings; and wherein the means for decoding and for processing decodes the calibration signal for each of the plurality of gain settings to produce the plurality of measurements that are used to identify a desired gain setting. - View Dependent Claims (19, 20, 21, 22, 23)
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Specification