Automated Wireless Peripheral Pairing via Phase-Based Ranging

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Solution Overview

Problem

Current wireless peripheral pairing methods are cumbersome and insecure, requiring manual interventions and exposing security vulnerabilities in dense environments, especially when multiple devices are present.

Innovation Solution

The system employs phase-based ranging to automate pairing by determining the distance between the information handling system and peripheral, using High Accuracy Distance Measurement (HADM) protocol, and adjusts radio power settings for secure pairing without end-user input.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If manual pairing process is used with multiple wireless peripherals available, then user can select desired peripheral, but pairing process becomes slow and complicated with user confusion

Engineering Contradiction:

Improvepairing process simplicityVSAvoidpairing time

Core Design Contradiction:

Ease of operationVSLoss of time

Solution Approach 1:

The system performs automated peripheral selection and pairing based on distance measurement, eliminating the need for manual user intervention. The information handling system automatically identifies the closest peripheral device and completes pairing without user input, making the system self-serve the pairing function.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The system performs distance measurement and peripheral identification before the pairing process begins. By pre-determining which peripheral is closest and most appropriate for pairing, the system prepares all necessary information in advance, eliminating delays during the actual pairing execution.

Inventive Principle:

Principle #10Preliminary action

2Adaptability or versatility

If conventional BLUETOOTH advertising broadcast is used, then peripheral can be detected by multiple information handling systems, but security vulnerability exists where attacker can sniff pairing packets

Engineering Contradiction:

Improveperipheral detectabilityVSAvoidsecurity vulnerability

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The system uses distance measurement to create a localized pairing zone around the information handling system. Only peripherals within a specific distance threshold are considered for pairing, creating a spatially-limited security perimeter that prevents distant attackers from intercepting pairing packets while still allowing legitimate nearby devices to connect.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The system introduces distance measurement as an intermediary verification step between peripheral advertising and pairing establishment. This intermediate check acts as a security filter that validates the physical proximity of the peripheral before allowing pairing communications to proceed, blocking potential eavesdropping attacks.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Object-affected harmful factors

If secret code input is required for pairing, then security vulnerability is avoided, but pairing process becomes more complicated and delayed

Engineering Contradiction:

Improvesecurity vulnerability preventionVSAvoidpairing process complexity

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The system automatically performs security verification based on distance measurement without requiring user intervention to input secret codes. The system self-evaluates the security conditions (proximity verification) and completes the pairing process autonomously, eliminating the need for manual code entry while maintaining security.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The system replaces the manual mechanical action of code input with an automated electronic distance measurement process. Instead of requiring user interaction through keyboard or display input, the system uses radio frequency phase measurement to automatically verify proximity and establish secure pairing.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

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

This approach simplifies and secures the pairing process by ensuring correct peripheral selection and reducing the risk of packet sniffing, providing automated, accurate, and secure long-term bonding in crowded wireless environments.

Implementation Method 1

Distance measured between a peripheral and information handling system may be applied to have an automated pairing without end user inputs to the information handling system, such as inputs at a user interface. A phase-based ranging provides confirmation of pairing based upon a distance between the information handling system and wireless peripheral

Methodology Applied

Scientific EffectPhase-based ranging: Phase Modulation

Data Source

PatentUS11737023B2Information handling system and peripheral wireless pairing by device positioning and adaptive power control

Publication Date: 2023.08.22 DELL PROD LP

AI summary

An information handling system manages automated wireless pairing with phase-based ranging to automatically initiate pairing when the peripheral powers up in an advertising mode within a predetermined range of the information handling system. In one embodiment, a display user interface presents instructions to the end user to move the peripheral to a different distance relative to the information handling system to confirm the pairing. In another embodiment, radio power for the pairing is adjusted based upon the distance to provide communication at substantially the pairing range as further confirmation of pairing to the correct peripheral and additional security for the pairing key exchange.