Precoding with transmission nonlinearity compensation

By determining and communicating a precoder that compensates for both channel and transmission nonlinearity, the solution addresses computational burdens in 5G NR systems, enhancing uplink transmission performance and resource efficiency in MU-MIMO setups.

WO2026125990A1 Publication Date: 2026-06-18NOKIA TECHNOLOGIES OY
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
NOKIA TECHNOLOGIES OY
Filing Date
2025-11-19
Publication Date
2026-06-18

AI Technical Summary

⚠Technical Problem

Existing communication technologies fail to efficiently compensate for transmission nonlinearity in power amplifiers, particularly in 5G NR systems, leading to computational burdens and suboptimal resource utilization in uplink MIMO transmissions.

⚗Method used

A network device determines and communicates a precoder to a terminal device that compensates for both communication channel and transmission nonlinearity, optimizing uplink transmissions by minimizing PA distortion without increasing computational load on the terminal device.

🎯Benefits of technology

This approach enhances uplink transmission performance and resource efficiency in MU-MIMO setups by effectively nulling PA distortion, thereby optimizing signal quality and reducing computational overhead.

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Abstract

Example embodiments of the present disclosure are directed to precoding with transmission nonlinearity compensation. A method includes transmitting an uplink reference signal to a network device; obtaining, in response to the transmission of the uplink reference signal, a first precoder part for compensating for a communication channel between the network device and the first apparatus, and a second precoder part for compensating for a transmission nonlinearity associated with the first apparatus; and performing a transmission to the network device based on the first precoder part and the second precoder part.
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