17919590. OVER-THE-AIR BEAMFORMING CALIBRATION simplified abstract (Telefonaktiebolaget LM Ericsson (publ))

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OVER-THE-AIR BEAMFORMING CALIBRATION

Organization Name

Telefonaktiebolaget LM Ericsson (publ)

Inventor(s)

Joao Vieira of HJÄRUP (SE)

Johan Nilsson of HÖLLVIKEN (SE)

[[:Category:Magnus Åstr�m of LUND (SE)|Magnus Åstr�m of LUND (SE)]][[Category:Magnus Åstr�m of LUND (SE)]]

OVER-THE-AIR BEAMFORMING CALIBRATION - A simplified explanation of the abstract

This abstract first appeared for US patent application 17919590 titled 'OVER-THE-AIR BEAMFORMING CALIBRATION

Simplified Explanation

The patent application describes a method for calibrating the beamforming capabilities of a multi-antenna transceiver. The method involves determining calibration factors for the transceiver chains of the antenna elements and selecting a smaller number of measurement resources for calibration sounding.

  • The method involves determining calibration factors for the transceiver chains of the antenna elements.
  • A smaller number of measurement resources are selected for calibration sounding.
  • One or more antenna elements are selected for sounding signal transmission for each measurement resource.
  • Sounding signals are transmitted by the selected antenna elements using each measurement resource.

Potential Applications

  • Wireless communication devices
  • Cellular networks
  • Internet of Things (IoT) devices

Problems Solved

  • Ensures accurate calibration of beamforming capabilities in multi-antenna transceivers.
  • Reduces the number of measurement resources required for calibration sounding.

Benefits

  • Improved performance and reliability of multi-antenna transceivers.
  • Reduced complexity and cost of calibration process.
  • Efficient utilization of measurement resources.


Original Abstract Submitted

A method of over-the-air beamforming calibration is disclosed for a multi-antenna transceiver having a first plurality of antenna elements connected to respective transceiver chains. Beamforming calibration comprises determining respective beamforming calibration factors for the transceiver chains of the antenna elements of the first plurality. The method comprises determining a second plurality of measurement resources for calibration sounding, wherein the second plurality is smaller than the first plurality. The method also comprises (for each measurement resource of the second plurality) selecting one or more antenna elements of the first plurality for sounding signal transmission, wherein each antenna element of the first plurality is selected for one or more of the measurement resources of the second plurality. The method also comprises (using each measurement resource of the second plurality) overlappingly transmitting respective sounding signals by the selected one or more antenna elements. Corresponding apparatus, multi-antenna transceiver, wireless communication device and computer program product are also disclosed.

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