Direct Routing for Multicast Audio Data in Wireless Networks
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Solution Overview
Problem
Existing audio network protocols, such as Spanning Tree Protocol (STP), restrict data transmission by blocking direct routing between certain devices, leading to longer communication paths and network congestion, which hinders efficient multicast traffic delivery in audio systems.
Innovation Solution
Implementing a direct routing scheme that allows devices to bypass protocol-imposed restrictions, enabling direct communication between otherwise blocked nodes based on connection quality, using a direct routing enabler that monitors signal strength and overrides protocol settings for audio data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If Spanning Tree Protocol (STP) is used to prevent routing loops, then network stability is improved, but data transmission speed deteriorates due to blocked direct routing paths
Solution Approach 1:
The patent segments network traffic into different types (multicast audio data versus other data) and applies different routing strategies to each. Multicast audio data is allowed to use direct routing paths while other data follows STP rules, thus resolving the contradiction by applying protocol restrictions selectively rather than universally across all traffic types.
2Speed
If direct routing is allowed between all devices, then data transmission speed is improved, but network congestion increases due to longer communication paths
Solution Approach 1:
The patent applies different routing qualities to different data types locally within the network. Multicast audio data receives the benefit of direct routing (high speed) while other data types continue to follow STP paths (avoiding congestion). This local differentiation resolves the contradiction by optimizing speed for specific traffic without causing overall network congestion.
3Stability of the object's composition
If protocol restrictions are enforced for all data types, then network stability is maintained, but multicast traffic delivery efficiency deteriorates
Solution Approach 1:
The patent introduces dynamic routing behavior that adapts based on data type. The system dynamically switches between STP-compliant routing and direct routing depending on whether the traffic is multicast audio data or other data types. This dynamic approach resolves the contradiction by maintaining stability for general traffic while optimizing delivery efficiency for multicast traffic.
Data Source
AI summary
Certain examples accommodate data routing optimizations. An example method comprises receiving, by a first playback device, data to be directed to at least a second playback device, the data comprising: i) audio data and ii) non-audio data. The method comprises transmitting, by the first playback device, the non-audio data to the second playback device via a third playback device according to a network protocol for communication between the first playback device and at least the second playback device via a wireless communication link. The method further comprises determining, by the first playback device, that a signal strength of the wireless communication link is above a threshold, and in response to the determination, transmitting the audio data to the second playback device via the wireless communication link, wherein transmitting the audio data comprises transmitting the audio data over the wireless communication link not according to the network protocol.