Patent ID: 8909133
Filing Date: 2014-12-09
Classification: H04B

Abstract:
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 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.