Indirect Device Pairing via Intermediary Controller
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Solution Overview
Problem
In communication systems like Bluetooth, reusing pre-stored pairing information can lead to incorrect device configurations when the functions of connected devices change, causing issues such as misinterpretation of user inputs in gaming systems where multiple controllers are used by different players.
Innovation Solution
A method and system for establishing communication links between devices using pre-stored link establishment parameters, including a link key and device addresses, which are negotiated and transmitted through further devices, allowing devices to authenticate and encrypt communications without direct pairing, enabling efficient reconfiguration of communication links.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If devices reuse pre-stored pairing information for rapid link establishment, then link establishment speed is improved, but configuration correctness deteriorates when device functions change
Solution Approach 1:
A central controller acts as an intermediary that manages pairing information distribution. The controller receives pairing information from one device and distributes it to other devices in the group, enabling rapid link establishment while ensuring configuration correctness through centralized management. The controller verifies and coordinates the pairing parameters to prevent misconfiguration when device functions change.
Solution Approach 2:
Pairing information is pre-established between a reference device and the controller before actual communication needs arise. This preliminary pairing allows devices to quickly join the communication group without performing full pairing procedures each time, while the controller ensures the pre-stored information remains valid and correctly configured for current device functions.
2Reliability
If devices perform full pairing procedures each time, then configuration correctness is maintained, but energy consumption increases
Solution Approach 1:
The controller serves as an intermediary that manages and distributes pairing information, eliminating the need for devices to perform energy-intensive full pairing procedures repeatedly. Devices can quickly establish links by using pairing information distributed by the controller, significantly reducing energy consumption while maintaining configuration correctness through centralized management.
3Adaptability or versatility
If multiple controllers are paired with a gaming console, then system versatility is improved, but authentication reliability deteriorates when controllers are mixed up
Solution Approach 1:
The gaming console acts as a central intermediary that manages pairing information for multiple controllers. When a controller connects, the console verifies authentication using centrally managed pairing information, ensuring that even when controllers are mixed up, the correct authentication occurs. The console coordinates the pairing process to prevent misauthentication while supporting multiple controllers simultaneously.
Data Source
AI summary
A method for establishing a communication link between two devices, the communication link employing a protocol that provides for link establishment information sufficient for establishing a link between two devices to be negotiated between those devices; the method comprising: establishing communication links between each of the two devices and one or more further devices; transmitting from the one or more further devices to each of the two devices information that defines link establishment parameters for a link between the two devices; and establishing the link between the two devices using the defined link establishment parameters.