Receiver apparatus for detecting narrowband interference in a multi-carrier receive signal

摘要

A receiver apparatus (100) for detecting narrowband interference in a multi-carrier receive signal, the multi-carrier receive signal being comprised of a plurality of subcarriers and having a structure of sequential time frames. The receiver apparatus (100) comprises a means (110) for transforming a composed receive signal, which is based on a transmit signal having subcarriers with a predefined amplitude and having subcarriers with a zero amplitude, to the frequency domain to obtain a composed receive signal spectrum, the composed receive signal being composed of multi-carrier receive signals of multiple time frames. The receiver apparatus (100) further comprises a means (120) for detecting narrowband interference by comparing subcarrier intensities from the composed receive signal spectrum to a detection threshold and further comprising a means (130) for cancelling a subcarrier in the composed receive signal spectrum if the intensity of the subcarrier is above the detection threshold.