Bluetooth Classic Service-Based Testing Without Test Firmware
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Solution Overview
Problem
Testing Bluetooth® Classic wireless devices requires a test mode or test firmware, which can be costly and not all devices support, necessitating a need for a test device that can test these devices using standard operation messages.
Innovation Solution
A test device is configured to identify Bluetooth® wireless devices, signal to determine services, generate commands based on identified services, transmit test packets, and receive responses to determine performance metrics without requiring a test mode or firmware.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If test mode or test firmware is added to Bluetooth wireless devices, then testing capability is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent introduces an external test device as an intermediary that performs testing functions independently of the Bluetooth device under test. The test device communicates with the Bluetooth device using standard Bluetooth protocols and messages, eliminating the need for test mode firmware in the Bluetooth device itself. This mediator approach allows comprehensive testing while keeping the Bluetooth device simple and compatible with standard protocols.
2Adaptability or versatility
If test mode firmware is added to all Bluetooth wireless devices, then universal testing capability is improved, but manufacturing cost increases
Solution Approach 1:
The test device is designed with universal testing capability that can test any Bluetooth device regardless of its specific type or implementation. The test device implements a comprehensive test suite that covers various Bluetooth profiles and services, making it adaptable to different devices without requiring modifications to the devices themselves. This multi-functional test device approach achieves universal testing capability while avoiding the cost of adding test firmware to each individual Bluetooth device.
Data Source
AI summary
A method for testing Bluetooth® Classic wireless devices includes identifying a Bluetooth® wireless device under test (DUT) by a test device. The method further includes signaling, by the test device and with the Bluetooth® wireless DUT over a Bluetooth® signaling interface, to identify at least one service provided by the Bluetooth® wireless DUT. The method further includes generating commands associated with the at least one service by the test device and based on the at least one service. The method further includes transmitting test packets including the commands to the Bluetooth® wireless DUT by the test device. The method further includes receiving, by the test device, packets including responses to a least some of the commands. The method further includes determining a performance metric of the Bluetooth® wireless DUT by the test device and based on the test packets and the packets including the responses.