Bluetooth Audio Pairing via Alternating Fast Pair Broadcasts

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Solution Overview

Problem

The existing Bluetooth connection methods between audio devices and terminal devices suffer from low efficiency and compatibility issues due to the lack of support for multiple pairing manners, leading to unsuccessful connections for devices that do not support the specific pairing method broadcast by the audio device.

Innovation Solution

The audio device broadcasts first and second connection configuration information corresponding to different pairing manners alternately, allowing it to establish Bluetooth connections with terminal devices supporting either the self-defined fast pair manner or the Google fast pair manner, respectively, without requiring the terminal device to send connection requests through its Bluetooth configuration interface.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the audio device broadcasts only one type of connection configuration information, then the connection process is simple, but terminal devices supporting other pairing manners cannot establish connections

Engineering Contradiction:
Improvecompatibility with different terminal devicesVSAvoidbroadcasting multiple connection configuration information
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The audio device broadcasts different connection configuration information (first connection configuration information for first pairing manner and second connection configuration information for second pairing manner) periodically in an alternating manner. This periodic switching allows the audio device to support multiple pairing manners without requiring terminal devices to handle multiple simultaneous broadcast types, thus improving compatibility while maintaining broadcast simplicity.

Inventive Principle:
Principle #19Periodic action

2Productivity

If the terminal device sends connection requests through Bluetooth configuration interface, then the connection process is standardized, but the connection efficiency is reduced

Engineering Contradiction:
Improveconnection efficiencyVSAvoidmanual configuration requirement
Core Design Contradiction:
ProductivityVSEase of operation

Solution Approach 1:

The audio device pre-broadcasts the connection configuration information (including pairing manner-specific parameters) before the terminal device needs to establish a connection. This preliminary action allows the terminal device to directly use the broadcasted information for connection without needing to send standardized connection requests through the Bluetooth configuration interface, thereby improving connection efficiency and reducing manual configuration steps.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP4472175B1Bluetooth connection method and audio device
Publication Date: 2026.04.01 GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD
  • EP4472175B1 patent drawingFigure 1~3
  • EP4472175B1 patent drawingFigure 4~5
  • EP4472175B1 patent drawingFigure 6a~7

AI summary

Disclosed in embodiments of the present application are a Bluetooth connection method, an audio device, a computer storage medium, and a chip. The method comprises: in the case that the audio device supports a first pairing mode and a second pairing mode, broadcasting in turn first connection configuration information corresponding to the first pairing mode and second connection configuration information corresponding to the second pairing mode, wherein the first connection configuration information is used for supporting a first terminal device in the first pairing mode to establish a Bluetooth connection with the audio device, and the second connection configuration information is used for supporting a second terminal device in the second pairing mode to establish a Bluetooth connection with the audio device.