Patent · US Active

Linearizing power amplifiers' outputs in multi-antenna system

US10931347B2 · kind B2 · utility

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19Claims

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Assignee

NOKIA SOLUTIONS AND NETWORKS OY · FI

Inventors

Bjoern Jelonnek · Ulm, DE
Gunter Wolff · Ulm, DE
Charles Nader · Ulm, DE
Frank Dechen · Blaustein, DE

Key dates

Filing date	Jul 3, 2017
Grant date	Feb 23, 2021
Priority date	—
Expiry date	Jul 3, 2037

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02D30/70
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

Linearizing Power Amplifiers' Outputs in Multi-Antenna System There is provided power efficient and simple structure for linearizing power amplifiers' outputs in multi-antenna beamforming systems. Beamforming factors are obtained for controlling transmission beams of the antennas in an analogue/hybrid beamforming system. At least one power amplifier model is determined on the basis of the power amplifiers' outputs and the beamforming factors. Predistortion parameters, for feeding a predistorted signal to power amplifiers for linearizing the power amplifiers' outputs, are determined such that after the operating parameters of the power amplifiers have been adjusted, errors in power amplifiers' outputs are reduced.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.