Wireless Audio Routing for Dynamic Multi-Device Streaming
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Solution Overview
Problem
Conventional Bluetooth audio technologies are limited in supporting audio routing in wireless communication systems, particularly for multiple device connections, and lack methods for dynamically changing audio streaming configurations.
Innovation Solution
A method and apparatus for audio routing in wireless communication systems that involve transmitting and receiving audio routing information and modification requests between devices, including available, configured, and content type information, to support dynamic audio streaming adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional Bluetooth audio technology is used for one-to-one connection, then audio transmission between two devices is supported, but it cannot support multiple device connections and audio routing
Solution Approach 1:
The audio source device is designed to perform multiple functions: it can simultaneously maintain one-to-one connections with multiple audio sink devices and manage audio routing between them. The device can switch between being a simple audio transmitter and an audio router, allowing it to adapt to different connection scenarios without requiring separate specialized devices for each function.
Solution Approach 2:
The audio routing configuration is made dynamic rather than static. The audio source device can change audio routing in real-time based on user requests or system conditions, allowing the connection topology to adapt flexibly. This enables the system to transition smoothly between different connection modes (one-to-one, one-to-many, many-to-one) without requiring complete reconnection.
2Adaptability or versatility
If Bluetooth audio technology is extended to support many-to-many connections, then multiple device connectivity is achieved, but delay increases and power consumption for device discovery increases
Solution Approach 1:
Audio routing information is pre-configured and stored in the audio source device before actual audio transmission begins. The device maintains a list of available audio sink devices and their capabilities in advance, so when audio transmission is needed, the system can quickly select from pre-known devices rather than performing extensive device discovery procedures at the moment of connection.
Solution Approach 2:
The audio source device creates and maintains a simplified representation (copy) of the audio network topology and device capabilities locally. This includes storing audio routing basic information such as available sink device lists, their supported formats, and current connection states. This local copy allows the system to make routing decisions without repeatedly querying all connected devices, reducing communication overhead and power consumption.
3Adaptability or versatility
If audio routing modification is implemented dynamically, then active audio routing can be changed, but system complexity increases
Solution Approach 1:
The system implements a feedback mechanism where the audio source device receives modification requests from audio sink devices or controllers and automatically adjusts audio routing accordingly. The source device monitors the current audio transmission state and responds to change requests by updating its routing configuration, then notifies relevant devices of the changes. This automated feedback loop reduces the need for complex manual control mechanisms while enabling dynamic routing adjustments.
Data Source
AI summary
The present disclosure relates to audio routing in a wireless communication system. A method by which a first device performs audio routing in a wireless communication system, according to one embodiment of the present disclosure, comprises the steps of: transmitting audio routing basic information to a second device; receiving an audio routing modification request from the second device; and transmitting, to the second device, audio-routing-related information modified on the basis of the audio routing modification request, wherein the audio routing basic information may comprise at least one of available audio routing device information, set audio routing device information, and audio routing content type information.