Wireless devices and systems including examples of compensating power amplifier noise with neural networks or recurrent neural networks
US10972139B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 15, 2020 |
| Grant date | Apr 6, 2021 |
| Priority date | — |
| Expiry date | Apr 15, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2001/045
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Examples described herein include methods, devices, and systems which may compensate input data for nonlinear power amplifier noise to generate compensated input data. In compensating the noise, during an uplink transmission time interval (TTI), a switch path is activated to provide amplified input data to a receiver stage including a recurrent neural network (RNN). The RNN may calculate an error representative of the noise based partly on the input signal to be transmitted and a feedback signal to generate filter coefficient data associated with the power amplifier noise. The feedback signal is provided, after processing through the receiver, to the RNN. During an uplink TTI, the amplified input data may also be transmitted as the RF wireless transmission via an RF antenna. During a downlink TTI, the switch path may be deactivated and the receiver stage may receive an additional RF wireless transmission to be processed in the receiver stage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.