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Samsung patents method to fix signal distortion in 5G base stations

This patent describes a technique for 5G base stations to correct signal errors that occur right after the network switches from receiving to sending data. The system identifies a specific time window where the power amplifier is unstable and applies a digital correction to the signal before it is transmitted.

Why it mattersThis improves the reliability of 5G connections by ensuring the signal remains clear during rapid switching between user uploads and downloads.

In the filing’s own words

The disclosure relates to a 5 th generation (5G) or pre-5G communication system for supporting a data transmission rate higher than that of a 4 th generation (4G) communication system such as long-term evolution (LTE). A method performed by a base station in a wireless communication system is provided. The method includes acquiring, by the base station, a first output signal of digital predistortion (DPD), identifying, by the base station, a distortion section from the starting point of a downlink section after an uplink section has ended in a time division duplex (TDD) configuration, identifying, by the base station, compensation information for a power amplifier of a base station in the distortion section, and providing, by the base station, a signal in which the compensation information is applied to a second output signal of the DPD to the power amplifier.

What exactly they claim (claim 1)

1. A method performed by a base station in a wireless communication system, the method comprising: acquiring a first output signal of digital predistortion (DPD); after an uplink period is ended in a time division duplex (TDD) configuration, identifying a distortion period from a start time of a downlink period; identifying compensation information for a power amplifier of the base station in the distortion period; and providing a signal in which the compensation information is applied to a second output signal of the DPD to the power amplifier.

Facts

Company
Samsung (Samsung Electronics Co., Ltd.)
Official title
Apparatus and method for signal compensation in wireless communication system
Patent number
US12744555B2
Application number
18653314
Filed
May 2, 2024
Granted
Sep 22, 2026
Inventors
1
Claims
20

Classified under

H04B 1/04 Electricity & electronicsH04L 5/14 Electricity & electronicsH04B 2001/0425 Electricity & electronics
Read the full filing (official PDF) ↗ Open in the Patent Tracker

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Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.