Wireless Communication Whitening Filter With Two-Stage Interference Validation

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Solution Overview

Problem

Existing wireless communication devices face challenges in adaptively removing interference, leading to degraded transmission/reception performance due to increased system complexity when whitening filtering is applied in environments with varying levels of interference.

Innovation Solution

A wireless communication device and method that adaptively performs whitening filtering by validating detected interference through multiple stages, using a processor to detect and validate first and second interferences, and a whitening filter circuit to convert colored noise into white noise, with adaptive threshold adjustments based on device performance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If whitening filter method is used to remove interference, then transmission/reception performance is improved, but system complexity is increased when interference is minimal or non-existent

Engineering Contradiction:

Improvetransmission/reception performanceVSAvoidsystem complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent implements adaptive whitening filtering where the system dynamically adjusts its behavior based on detected interference levels. The processor determines whether to apply whitening filtering by validating detected interference against threshold criteria, allowing the system to switch between simple and complex processing modes depending on actual channel conditions, thus avoiding unnecessary complexity in low-interference environments while maintaining performance benefits when interference is present

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent changes the operational parameters of the whitening filter based on interference validation results. By modifying the filter activation state and processing intensity according to validated interference levels, the system optimizes the balance between performance improvement and complexity reduction, applying full whitening processing only when validation confirms interference presence

Inventive Principle:

Principle #35Parameter changes

2Reliability

If whitening filtering is applied continuously, then interference is removed effectively, but computational resources are wasted in low-interference environments

Engineering Contradiction:

Improveinterference removal effectivenessVSAvoidcomputational resource consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent implements periodic interference validation before applying whitening filtering. Instead of continuous processing, the system periodically detects and validates interference presence, then applies whitening filtering only when validation confirms interference. This periodic validation approach maintains effective interference removal when needed while significantly reducing computational resource consumption during low-interference periods

Inventive Principle:

Principle #19Periodic action

Solution Approach 2:

The system performs self-validation of interference presence using the processor to determine whether whitening filtering is necessary. By self-assessing the channel conditions and making autonomous decisions about filter activation, the system avoids wasting computational resources on unnecessary processing while ensuring effective interference removal when actually needed

Inventive Principle:

Principle #25Self-service

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Improves wireless communication performance by selectively applying whitening filtering, reducing system overhead and maintaining stable data transmission without excessive complexity, even in environments with varying interference levels.

Implementation Method 1

a whitening filter circuit configured to perform whitening filtering on results of the first whitening validation and the second whitening validation

Methodology Applied

Scientific EffectWhitening filtering: Filter (electronic)

Data Source

PatentUS12452112B2Wireless communication device and operating method of the same

Publication Date: 2025.10.21 SAMSUNG ELECTRONICS CO LTD

AI summary

A wireless communication device is provided. The wireless communication device includes: a communication circuit configured to transceive a signal using a plurality of antennas; a processor configured to: detect a first interference for N resource blocks (RB) of the signal; based on the first interference being detected, perform a first whitening validation on the first interference; detect a second interference based on a result of the first whitening validation; and based on the second interference being detected, perform a second whitening validation on the second interference; and a whitening filter circuit configured to perform whitening filtering on results of the first whitening validation and the second whitening validation.