Beacon Device RF Signal Strength Control

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Solution Overview

Problem

Existing base station RF signal power management systems struggle to consistently maintain desired signal strengths at specific locations, such as schools and stadiums, due to difficulties in adjusting signal power levels to meet regulatory requirements.

Innovation Solution

A beacon device is placed at target locations to measure and compare signal strengths with predetermined threshold values, sending adjustment messages to base stations to adjust their emitted signal power levels, ensuring compliance with desired signal strength requirements.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If base stations emit RF signals with high power to extend working range, then coverage area is improved, but signal strength at target locations becomes excessive and may cause harmful exposure

Engineering Contradiction:
Improveworking rangeVSAvoidRF signal exposure
Core Design Contradiction:
Area of stationary objectVSObject-affected harmful factors

Solution Approach 1:

The beacon device continuously monitors RF signal strength at target locations and provides feedback to the base station. When signal strength exceeds the threshold, the beacon sends a command to reduce power; when below threshold, it allows power increase. This closed-loop feedback system dynamically adjusts base station power to maintain signal strength within acceptable ranges, resolving the contradiction between coverage area and harmful exposure.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system dynamically changes the power parameter of RF signals emitted by the base station based on real-time conditions at target locations. The beacon device measures signal strength and triggers power parameter adjustments (increase or decrease) to maintain compliance with exposure limits while ensuring adequate coverage, thus resolving the contradiction through adaptive parameter modification.

Inventive Principle:
Principle #35Parameter changes

2Object-affected harmful factors

If base stations reduce RF signal power to limit exposure at target locations, then harmful exposure is reduced, but working range and communication quality deteriorate

Engineering Contradiction:
ImproveRF signal exposureVSAvoidcommunication quality
Core Design Contradiction:
Object-affected harmful factorsVSSpeed

Solution Approach 1:

The beacon device provides real-time feedback on signal strength at target locations, enabling the base station to reduce power only when and where necessary to meet exposure limits. This localized feedback approach maintains communication quality in other areas while limiting exposure at specific target locations, resolving the contradiction between exposure reduction and communication performance.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system applies different power levels to different spatial locations. The beacon device identifies specific target locations where exposure limits must be enforced, and the base station adjusts power locally for those areas while maintaining higher power for other regions where no exposure constraints exist. This spatially differentiated approach resolves the contradiction by applying exposure reduction only where necessary.

Inventive Principle:
Principle #3Local quality

3Device complexity

If manual adjustment of base station power is used, then device complexity is low, but ability to maintain consistent signal strength at target locations is poor

Engineering Contradiction:
Improvepower management systemVSAvoidsignal strength consistency
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The beacon device autonomously monitors signal strength at target locations and automatically sends power adjustment commands to the base station without human intervention. This self-service mechanism ensures consistent signal strength maintenance through continuous monitoring and automatic correction, resolving the contradiction by providing reliable automated control with minimal added complexity.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system implements automated feedback control where the beacon device continuously measures signal strength and automatically adjusts base station power accordingly. This automated feedback loop maintains consistent signal strength at target locations without requiring complex manual intervention systems, resolving the contradiction between simplicity and reliability through intelligent automation.

Inventive Principle:
Principle #23Feedback

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

The beacon device effectively controls and maintains signal strengths at target locations within acceptable levels, enhancing communication quality and user device functionality while adhering to regulatory standards.

Implementation Method 1

the beacon device may detect a signal emitted from the base station and measure a signal strength of the signal at the target location

Methodology Applied
Scientific EffectSignal strength measurement:

Implementation Method 2

Base stations emit radio frequency (RF) signals that may be received by user devices

Methodology Applied
Scientific EffectRadio frequency signal emission:

Data Source

PatentUS9220074B2Beacon device for controlling signal strengths in target locations
Publication Date: 2015.12.22 CELLCO PARTNERSHIP INC
  • US9220074B2 patent drawing
  • US9220074B2 patent drawing
  • US9220074B2 patent drawing

AI summary

A device is configured to store target location information indicating an acceptable signal strength at a target location. The device may receive a signal emitted from a base station. The signal may be received at the target location. The device may measure the signal strength of the signal at the target location. The device may transmit a signal strength message including information based on the signal strength. The signal strength message may cause the base station to adjust a power with which signals are emitted from the base station such that the signals satisfy the acceptable signal strength at the target location.