Power-efficient antenna array control architecture

A system comprising:

• a digital beamformer circuit coupled to an analog front end that is coupled to N antenna elements, the digital beamformer circuit comprising:
• a plurality of digital pre-distortion (DPD) circuit blocks, each of which is in a transmission path associated with one of the N antenna elements;
• and
• a controller configured to:
• determine one or more parameters corresponding to the analog front end;
• selectively deactivate one or more of the plurality of DPD circuit blocks corresponding to a first region;
• selectively activate one or more of the plurality of DPD circuit blocks corresponding to a second region;
• determine DPD data from one or more DPD tables for each activated DPD circuit block based on the one or more parameters;
• and
• send one or more control signals to control a power level or bias point for each power amplifier of the analog front end based on the determined DPD data.

A system comprising:

• a digital beamformer circuit coupled to an analog front end that is coupled to N antenna elements of an antenna array, the digital beamformer circuit comprising:
• a plurality of digital pre-distortion (DPD) circuit blocks, each of which is in a transmission path associated with one of the N antenna elements;
• and
• a controller configured to:
• determine one or more parameters corresponding to the analog front end;
• selectively deactivate one or more of the plurality of DPD circuit blocks corresponding to a first region;
• selectively activate one or more of the plurality of DPD circuit blocks corresponding to a second region;
• determine DPD data from one or more DPD tables for each activated DPD circuit block based on the one or more parameters;
• and
• send one or more control signals to control a power level or bias point for each power amplifier of the analog front end based on the determined DPD data to pre-compensate a signal on a per antenna element basis to negate non-linearities introduced by a power amplifier in the transmission path.