Gain measurement and monitoring for wireless communication systems
First Claim
1. A signal repeating device for repeating signals in a wireless communication system, the signal repeating device comprising:
- signal path elements for defining at least an uplink signal path or a downlink signal path in the signal repeating device, the signal path elements including;
frequency conversion circuitry;
filter circuitry;
amplifier circuitry;
circuitry configured for obtaining an operational noise measurement in a signal path of the signal repeating device and for measuring an operational noise level in a frequency band that is outside of and adjacent to a bandwidth of a first element located in the signal path;
circuitry configured for retrieving a stored parameter that includes a previously determined reference noise level for the signal repeating device andcomparing the measured operational noise level to the retrieved reference noise level parameter and using the comparison to evaluate the gain of at least a section of the signal repeating device to determine a failure or malfunction of an element in the signal repeating device.
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Accused Products
Abstract
A system and method of monitoring a signal repeating device in a wireless communication system is provided. An operational noise measurement is obtained by measuring a noise value outside of a bandwidth of a first element, but within a bandwidth of a second, subsequent element in a signal path of the device. The operational noise measurement is alternatively obtained by tuning an input band of the device to shift the input band partially or completely outside of a bandwidth of a first element to create an open band or by suppressing an input of an antenna and measuring noise within the open bandwidth of the device. A stored parameter is retrieved and compared to the measured operational noise. Alternatively, a leakage signal of the device may be received at a signal receiver and compared to a reference. The reference is a function of elements of the device in a leakage path of the leakage signal.
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Citations
20 Claims
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1. A signal repeating device for repeating signals in a wireless communication system, the signal repeating device comprising:
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signal path elements for defining at least an uplink signal path or a downlink signal path in the signal repeating device, the signal path elements including; frequency conversion circuitry; filter circuitry; amplifier circuitry; circuitry configured for obtaining an operational noise measurement in a signal path of the signal repeating device and for measuring an operational noise level in a frequency band that is outside of and adjacent to a bandwidth of a first element located in the signal path; circuitry configured for retrieving a stored parameter that includes a previously determined reference noise level for the signal repeating device and comparing the measured operational noise level to the retrieved reference noise level parameter and using the comparison to evaluate the gain of at least a section of the signal repeating device to determine a failure or malfunction of an element in the signal repeating device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A signal repeating device for repeating signals in a wireless communication system, the signal repeating device comprising:
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signal path elements for defining at least an uplink signal path or a downlink signal path in the signal repeating device to couple to an antenna, the signal path elements including; frequency conversion circuitry; filter circuitry; amplifier circuitry; circuitry configured for obtaining an operational noise measurement by suppressing an input signal from an antenna coupled to a signal path by disconnecting the antenna in the signal path and for measuring an operational noise level in a frequency band that is within a bandwidth of the signal repeating device; circuitry configured for retrieving a stored parameter that includes a previously determined reference noise level for the signal repeating device and comparing the measured operational noise level to the retrieved reference noise level parameter and using the comparison to evaluate the gain of at least a section of the signal repeating device to determine a failure or malfunction of an element in the signal repeating device. - View Dependent Claims (12, 13, 14)
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15. A signal repeating device for repeating signals in a wireless communication system, the signal repeating device comprising:
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signal path elements for defining at least an uplink signal path or a downlink signal path in the signal repeating device to couple to an antenna, the signal path elements including; frequency conversion circuitry; filter circuitry; amplifier circuitry; circuitry configured for capturing a leakage signal from a defined leakage path in the signal repeating device using a signal receiver and for evaluating the gain of the leakage signal, the defined leakage path reflecting the gain of a signal passing through elements of the signal repeating device; and circuitry configured for comparing the gain of the leakage signal to a predetermined threshold that is a function of gain and attenuation characteristics of elements of the signal repeating device that are located in the defined leakage path and for using the comparison to determine a failure or malfunction of an element in the signal repeating device. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification