Multi-metric gain control for wireless repeater
First Claim
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1. A method for controlling gain in a wireless repeater, the method comprising:
- receiving an input signal at a receiving antenna of the repeater, the input signal being a sum of a remote signal to be repeated and a feedback signal resulting from a feedback channel between the receiving antenna and a transmitting antenna;
transmitting an output signal on the transmitting antenna, the output signal being an amplified input signal;
providing a plurality of gain control metrics, the gain control metrics being indicative of stability of the repeater, at least two of the plurality of gain control metrics having different integration lengths, the integration length being the sum of a coherent integration time and a non-coherent integration time;
calculating the plurality of gain control metrics;
selecting one or more of the plurality of gain control metrics to use based on the stability of the repeater; and
controlling a variable gain value of the repeater based on the selected gain control metric.
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Abstract
A method for controlling gain in a wireless repeater includes using two or more gain control metrics indicative of stability of the repeater, at least two of the gain control metrics having different integration lengths, where the integration length is the sum of the coherent integration time and the non coherent integration time, and controlling a variable gain value of the repeater based on one or more of the selected gain control metric(s) where the gain control metric(s) to use is selected based on the stability of the repeater.
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Citations
25 Claims
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1. A method for controlling gain in a wireless repeater, the method comprising:
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receiving an input signal at a receiving antenna of the repeater, the input signal being a sum of a remote signal to be repeated and a feedback signal resulting from a feedback channel between the receiving antenna and a transmitting antenna; transmitting an output signal on the transmitting antenna, the output signal being an amplified input signal; providing a plurality of gain control metrics, the gain control metrics being indicative of stability of the repeater, at least two of the plurality of gain control metrics having different integration lengths, the integration length being the sum of a coherent integration time and a non-coherent integration time; calculating the plurality of gain control metrics; selecting one or more of the plurality of gain control metrics to use based on the stability of the repeater; and controlling a variable gain value of the repeater based on the selected gain control metric. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A wireless repeater having a receiving antenna for receiving an input signal and a transmitting antenna for transmitting an output signal, the input signal being a sum of a remote signal to be repeated and a feedback signal resulting from a feedback channel between the receiving antenna and the transmitting antenna, the output signal being an amplified input signal, the repeater comprising:
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a gain control block configured to control a variable gain value of the repeater based on a plurality of gain control metrics, the gain control metrics being indicative of stability of the repeater, the gain control block comprising a gain metric calculator configured to generate the plurality of gain control metrics and a gain control algorithm block configured to control the variable gain of the repeater based on the plurality of gain control metrics, wherein at least two of the plurality of gain control metrics have different integration lengths, the integration length being the sum of a coherent integration time and a non-coherent integration time, and the gain control algorithm block selects one or more of the plurality of gain control metrics to use based on the stability of the repeater to control the variable gain value of the repeater. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A wireless repeater having a receiving antenna for receiving an input signal and a transmitting antenna for transmitting an output signal, the input signal being a sum of a remote signal to be repeated and a feedback signal resulting from a feedback channel between the receiving antenna and the transmitting antenna, the output signal being an amplified input signal, the repeater comprising:
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means for controlling a variable gain value of the repeater based on a plurality of gain control metrics, the gain control metrics being indicative of stability of the repeater, the means comprising means for generating the plurality of gain control metrics and means for controlling the variable gain of the repeater based on the plurality of gain control metrics, wherein at least two of the plurality of gain control metrics have different integration lengths, the integration length being the sum of a coherent integration time and a non-coherent integration time, and the means for controlling the variable gain selects one or more of the plurality of gain control metrics to use based on the stability of the repeater to control the variable gain value of the repeater.
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Specification