Telefonaktiebolaget lm ericsson (publ) (20250132797). FORWARD DISTORTION CORRECTION FOR TIME DOMAIN BEAMFORMING

FORWARD DISTORTION CORRECTION FOR TIME DOMAIN BEAMFORMING

Organization Name

telefonaktiebolaget lm ericsson (publ)

Inventor(s)

Pierre-Andre Laporte of Gatineau CA

Jayamuni Silva of Nepean CA

FORWARD DISTORTION CORRECTION FOR TIME DOMAIN BEAMFORMING

This abstract first appeared for US patent application 20250132797 titled 'FORWARD DISTORTION CORRECTION FOR TIME DOMAIN BEAMFORMING

Original Abstract Submitted

a method and network node for forward distortion correction for time domain beam forming are provided. according to one aspect, a method in a network node includes filtering cach signal output by the time domain beamformer by a band stop filter, the band stop filter including a stop band overlapping a pass band of the signal output by the time domain beamformer. the method also includes filtering each signal output by the time domain beamformer by a group delay filter in electrical parallel with a band stop filter, the group delay filter providing a group delay to the signal output by the time domain beamformer. the method also includes subtracting an output of each band stop filter from an output of a corresponding group delay filter.