GNSS mmWave Noise Interference Control via Dynamic Deactivation

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Solution Overview

Problem

The performance degradation of GNSS circuit modules in electronic devices due to noise interference from mmWave communication modules, particularly in 5G communication systems, which affects position measurement accuracy.

Innovation Solution

An electronic device with a processor that determines whether to deactivate the mmWave communication module based on the characteristics of activated applications, such as those using position information, to minimize noise interference and improve GNSS reception performance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Speed

If the mmWave communication module is activated to provide high-speed cellular communication, then communication performance is improved, but noise interference to the GNSS circuit module increases causing position measurement degradation

Engineering Contradiction:

Improvecommunication speedVSAvoidposition measurement accuracy

Core Design Contradiction:

SpeedVSMeasurement precision

Solution Approach 1:

The system dynamically adjusts the operational state of the mmWave communication module based on real-time detection of GNSS position measurement status. When position measurement is detected as ongoing, the mmWave module is deactivated to eliminate noise interference. This dynamic switching resolves the contradiction by adapting communication performance to actual usage needs while protecting measurement accuracy.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The processor receives feedback signals from the GNSS circuit module indicating whether position measurement is being performed. Based on this feedback, the processor controls the activation state of the mmWave communication module. This feedback mechanism enables the system to automatically resolve the contradiction between communication performance and measurement accuracy without user intervention.

Inventive Principle:

Principle #23Feedback

2Reliability

If the mmWave communication module operates at high power to maintain signal quality, then communication reliability is improved, but noise interference to adjacent GNSS components increases

Engineering Contradiction:

Improvecommunication reliabilityVSAvoidnoise interference

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The system performs preliminary detection of GNSS position measurement status before allowing mmWave communication to operate. By detecting the measurement state in advance, the processor can prevent high-power mmWave transmission that would generate harmful noise interference, thus protecting the GNSS circuit module while maintaining communication reliability when appropriate.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The processor acts as an intermediary between the GNSS circuit module and the mmWave communication module. It receives status information from the GNSS module and uses this information to control the mmWave module's operation, thereby mediating the harmful interaction between high-power communication signals and sensitive GNSS reception.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Area of stationary object

If multiple communication modules are disposed at the upper end portion for omnidirectional coverage, then communication coverage is improved, but noise interference to GNSS circuit module increases

Engineering Contradiction:

Improvecoverage areaVSAvoidnoise from communication modules

Core Design Contradiction:

Area of stationary objectVSObject-generated harmful factors

Solution Approach 1:

The system dynamically controls the activation state of multiple communication modules based on whether GNSS position measurement is ongoing. When measurement is detected, all communication modules are deactivated to eliminate cumulative noise interference. This dynamic approach allows the system to maintain broad coverage capability when needed while eliminating harmful noise during measurement operations.

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS11252692B2Electronic device for improving position measurement performance and operation method of electronic device

Publication Date: 2022.02.15 SAMSUNG ELECTRONICS CO LTD

AI summary

Various embodiments relate to an electronic device and an operation method of an electronic device, and the electronic device may include: a GNSS circuit module comprising GNSS circuitry configured to receive a signal for measuring a position of the electronic device; a first mmWave communication module comprising communication circuitry disposed adjacent to the GNSS circuit module and configured to perform a first cellular communication; and a processor, wherein the processor may be configured to receive, from the GNSS circuit module, a signal indicating a start of position measurement of the electronic device based on the first mmWave communication module being activated, to determine whether to deactivate the first mmWave communication module based on a characteristic of an application activated on the processor, and to control the first mmWave communication module based on the determination of whether to deactivate the first mmWave communication module.