US 12,719,551 B2Granted

Beam-based pre-distortion training

AssigneeQUALCOMM Incorporated

InventorsMin Soo Sim, Wei Zhao, Igor Gutman, Alexander Dorosenco, Tao Luo, Damin Cao, Kyle Alexander Douglas, Carl Hardin, Shrenik Patel

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Abstract

Certain aspects of the present disclosure provide techniques for beam-based pre-distortion training. An example method of calibration of a wireless communications device includes obtaining a first configuration that indicates a first set of beams for communication of one or more first calibration signals between the wireless communications device and a receiver. The method further includes obtaining an indication of the one or more first calibration signals communicated between the wireless communications device and the receiver. The method further includes obtaining one or more first parameters for distortion calibration associated with communications via one or more beams of the wireless communications device based at least in part on the one or more first calibration signals. The method further includes sending a first signal based on the one or more first parameters.

Claims20

Dependent claims

An apparatus configured for calibration of a wireless communications device, comprising:

one or more memories;
and
one or more processors coupled to the one or more memories, the one or more processors being configured to cause the apparatus to:
obtain a first configuration that indicates a first set of beams for communication of at least one or more first calibration signals, via a first beam of the first set of beams, between the wireless communications device and a receiver;
obtain an indication of the one or more first calibration signals communicated, via the first beam, between the wireless communications device and the receiver;
obtain one or more first parameters for distortion calibration associated with communications via one or more beams of the wireless communications device based at least in part on the one or more first calibration signals communicated via the first beam, wherein the one or more first parameters comprise one or more first pre-distortion coefficients associated with communications via a second beam of the one or more beams, wherein the first beam is different from the second beam;
and
send a first signal, via the second beam, based on the one or more first parameters.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/672,840Filed 23 May 2024
Published: US 2025/0365054 A127 Nov 2025
Granted: 25 Aug 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

H04B 7/06952
Using beam selection: selecting one or more beams from a plurality of beams, e.g. beam training, management or sweeping
H04B 7/0639
Feedback format: using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection
H04B 17/12
For calibration: of transmit antennas, e.g. of the amplitude or phase
H04B 17/221
For calibration of the receiver components: of receiver antennas, e.g. as to amplitude or phase