Dual Wireless Device Pairing via Secure Channel

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Solution Overview

Problem

The existing pairing procedures for wireless communication devices, such as Bluetooth, are often inconvenient and require significant user effort, especially when multiple devices need to be paired with a mobile device for secure and encrypted communication.

Innovation Solution

A method where a first wireless communication device establishes a secure communication channel with a mobile device through a first pairing procedure, which is then used to perform an out-of-band pairing procedure for a second wireless communication device, reducing the need for user interaction and simplifying the pairing process without compromising security.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a traditional pairing procedure is performed for each wireless communication device separately, then security is maintained, but user effort and time consumption increase

Engineering Contradiction:
ImprovesecurityVSAvoidpairing time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The first pairing procedure between the first wireless communication device and the mobile device is performed in advance to establish a secure communication channel. This preliminary action enables the second wireless communication device to use the same channel for its pairing procedure, eliminating the need for a separate pairing process and reducing user effort while maintaining security through the pre-established encrypted channel.

Inventive Principle:
Principle #10Preliminary action

2Adaptability or versatility

If separate wireless communication devices are used for different functionalities, then functional versatility is improved, but pairing complexity increases

Engineering Contradiction:
Improvefunctional versatilityVSAvoidpairing complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The first wireless communication device serves multiple purposes: it establishes the initial secure channel for keyless access functionality and simultaneously provides the communication channel for the second wireless communication device's pairing procedure. This universal use of the first device's communication channel simplifies the overall pairing process while supporting multiple functional devices.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The first wireless communication device acts as an intermediary for the second wireless communication device's pairing procedure. By using the first device's established communication channel to exchange pairing information with the mobile device, the system reduces the complexity of pairing multiple devices without requiring direct interaction between each device and the mobile device.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Reliability

If user input is required for each pairing procedure, then security confirmation is ensured, but ease of operation decreases

Engineering Contradiction:
Improvesecurity confirmationVSAvoiduser effort
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The second pairing procedure leverages the pre-established communication channel from the first pairing procedure, allowing the system to automatically exchange pairing information without requiring additional user input. The secure channel is already in place, so the second device can proceed with pairing autonomously using the existing secure pathway.

Inventive Principle:
Principle #25Self-service

Data Source

PatentEP3968669B1A concept for a device with two communication devices
Publication Date: 2024.08.28 BAYERISCHE MOTOREN WERKE AG
  • EP3968669B1 patent drawingFigure 1a~1b
  • EP3968669B1 patent drawingFigure 2-1
  • EP3968669B1 patent drawingFigure 2-2

AI summary

Examples relate to a concept for a device with two wireless communication devices, in particular to a pairing procedure for pairing a mobile device with a device with two communication devices. A device (100), such as a vehicle (100) comprises a first wireless communication device (20), a separate second wireless communication device (30), and control circuitry (10) configured to perform a first pairing procedure between the first wireless communication device and a mobile device to establish a communication channel between the first wireless communication device and the mobile device, and to perform a second pairing procedure between the second wireless communication device and the mobile device by exchanging pairing information for pairing the second wireless communication device and the mobile device with the mobile device via the communication channel between the first wireless communication device and the mobile device.