Wireless Router Power Learning Security Perimeter

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Solution Overview

Problem

Wireless home networks are vulnerable to hacking due to simple login credentials, shared encryption settings, broadcast SSIDs, and signal leakage, which can be exploited by hackers, compromising network security.

Innovation Solution

Implementing learned power security by measuring and adjusting signal strength at boundary points to define an authentication perimeter, preventing unauthorized access by setting transmit signal power and antenna beam shapes to restrict communication to secure areas.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If the base station transmits signals at high power to ensure coverage throughout the area, then the coverage area is improved, but signal leakage to the exterior increases making the network more vulnerable to hacking

Engineering Contradiction:
Improvecoverage areaVSAvoidsignal leakage
Core Design Contradiction:
Area of stationary objectVSObject-affected harmful factors

Solution Approach 1:

The base station dynamically adjusts its transmit signal power based on feedback from remote devices measuring signal strength at boundary locations. The system transitions from a static high-power transmission mode to a dynamic adaptive power control mode, where the transmit power is continuously optimized to maintain minimum required signal strength at boundaries while minimizing exterior leakage.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system implements a feedback mechanism where remote devices measure the received signal strength at boundary points and communicate these measurements back to the base station. The base station uses this feedback information to adjust its transmit signal power, creating a closed-loop control system that optimizes coverage while preventing signal leakage.

Inventive Principle:
Principle #23Feedback

2Ease of operation

If the base station uses simple login credentials and broadcast SSIDs for ease of setup, then the ease of operation is improved, but network security deteriorates

Engineering Contradiction:
Improvesetup simplicityVSAvoidnetwork security
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The system performs security configuration automatically without requiring user input. Remote devices automatically measure signal strength at boundary points, and the base station automatically adjusts its transmit power based on these measurements. This self-service approach eliminates the need for users to manually configure complex security settings while maintaining strong security through learned power control.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The base station performs preliminary security configuration by automatically establishing an authenticated perimeter through learned power control before any unauthorized access attempts occur. This preliminary action of defining the secure area boundaries through signal strength measurement and adjustment prevents hackers from exploiting signal leakage before they can attempt intrusion.

Inventive Principle:
Principle #10Preliminary action

3Reliability

If the base station transmits signals at high power to maintain communication quality, then the communication reliability is improved, but the authenticated perimeter control capability deteriorates

Engineering Contradiction:
Improvecommunication reliabilityVSAvoidauthenticated perimeter control
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The system changes the transmit signal power parameter dynamically based on the authenticated perimeter requirements and boundary signal strength measurements. Instead of using a fixed high power level, the base station adjusts the power parameter to the minimum necessary level to maintain communication reliability within the authenticated perimeter while preventing exterior leakage.

Inventive Principle:
Principle #35Parameter changes

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

Enhances network security by creating an authenticated perimeter that limits access to authorized devices only, reducing signal leakage and preventing unauthorized connections, thereby strengthening wireless home network security.

Implementation Method 1

the remote device at each location in the area measures a received signal strength of the signal transmitted by the base station

Methodology Applied
Scientific EffectSignal strength measurement:

Implementation Method 2

The base station defines an authentication perimeter for the area by setting a transmit signal power of the base station based on the received signal strength at each location

Methodology Applied
Scientific EffectPower control:

Data Source

PatentUS7948914B2Power learning security in wireless routers
Publication Date: 2011.05.24 AVAGO TECHNOLOGIES INTERNATIONAL SALES PTE LTD
  • US7948914B2 patent drawing
  • US7948914B2 patent drawing
  • US7948914B2 patent drawing

AI summary

In described embodiments, elements of a wireless home network employ learned power security for the network. An access point, router, or other wireless base station emits and receives signals having corresponding signal strengths. Wireless devices coupled to the base station through a radio link are moved through the home network at boundary points of the home and the signal strength is measured at each device and communicated to the base station. Based on the signal strength information from the emitted signals measured at the boundary points and/or from measured signal strength information of signals received from the boundary points, the base station determines a network secure area. The base station declines permission of devices attempting to use or join the home network that exhibit signal strength characteristics less than boundary values for the network secure area.