ASP Service Discovery for Multi-Sink Wireless Streaming
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Solution Overview
Problem
Conventional wireless communication systems lack efficient means for synchronized service discovery and management of audio and video streaming to multiple sink devices, particularly in peer-to-peer connections, which limits the flexibility and interoperability of devices from different vendors.
Innovation Solution
The implementation of an Application Service Platform (ASP) service discovery method that allows source devices to receive and determine the service capabilities of multiple sink devices, establishing a session before connecting, enabling synchronous audio and video streaming across multiple devices from various vendors in a plug-and-play fashion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional wireless peer-to-peer connection methods are used, then device connectivity is established, but synchronized service discovery for multiple sink devices is not supported
Solution Approach 1:
The patent implements preliminary service discovery and capability negotiation before establishing the actual media streaming connection. The source device performs ASP service discovery to identify compatible sink devices and their capabilities (audio, video, both) prior to initiating the Wi-Fi connection, enabling synchronized multi-sink service establishment.
Solution Approach 2:
The patent segments the connection establishment process into distinct phases: ASP service discovery phase (identifying sink devices and capabilities), Wi-Fi connection establishment phase, and media streaming phase. This segmentation allows complex multi-sink synchronization to be managed through structured, manageable steps rather than a monolithic process.
2Adaptability or versatility
If devices from multiple vendors are connected, then interoperability is improved, but compatibility issues increase
Solution Approach 1:
The patent employs a universal service discovery framework based on standard protocols (mDNS, SSDP) that can discover and communicate with sink devices from multiple vendors. The ASP framework provides a standardized interface for capability negotiation, allowing source devices to work with various sink device types (audio-only, video-only, both) while maintaining compatibility through common protocols.
3Ease of operation
If central access points are used for connection management, then connection establishment is simplified, but system flexibility and peer-to-peer capability are reduced
Solution Approach 1:
The patent implements self-service connection establishment where the source device autonomously performs service discovery, capability negotiation, and connection setup with sink devices without requiring central access point intervention. The source device uses ASP service discovery to automatically identify and connect with appropriate sink devices, maintaining peer-to-peer flexibility while simplifying the user experience through automated discovery and setup.
Data Source
AI summary
Methods, systems, and devices are described for service discovery and session establishment framework to enable a synchronous audio/video streaming service from a source to multiple sink devices. In accordance with the present disclosure, a plurality of sink devices (e.g., Wi-Fi speakers) may be deployed in a flexible (e.g., plug-and-play) fashion and may be discoverable by the source device. In some examples, the devices from multiple vendors may interoperate and easily connect with the source device for flexible configuration based on the media content or number of available sink devices. Thus, the present disclosure provides a method for service specific discovery associated with synchronous audio/video streaming by utilizing Application Service Platform (ASP) service discovery prior to establishment of a display service session from a source device to multiple sink devices.