Isochronous Data Stream Management in High Speed Audio Video Networks
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Solution Overview
Problem
High-speed video networks face challenges in managing isochronous video streams effectively, particularly in bi-directional transport of high-quality multimedia content, due to limitations in existing interface standards and resource allocation mechanisms.
Innovation Solution
A method and system for isochronous data stream management in high-speed audio/video networks, utilizing forwarding information to establish and manage AV paths, allocate communication resources, and enable bi-directional streaming between AV devices through dynamic lane and port allocation, without requiring a dedicated channel for control messages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a dedicated channel is allocated for control messages, then control message transmission is simplified and reliable, but communication resource utilization decreases and device complexity increases
Solution Approach 1:
The patent merges control message transmission with data transmission by allowing control messages to be sent over the same communication lanes used for isochronous data streams. This eliminates the need for separate dedicated control channels, thereby improving resource utilization while maintaining transmission reliability through protocol-level message identification and handling mechanisms.
Solution Approach 2:
The communication lanes are designed to serve multiple functions: they can transmit both isochronous data streams and control messages interchangeably. This multi-functionality allows the same physical infrastructure to handle different types of traffic dynamically, reducing overall device complexity and improving adaptability without sacrificing control message reliability.
2Productivity
If dynamic resource allocation is implemented, then communication efficiency and adaptability improve, but system complexity and difficulty of management increase
Solution Approach 1:
The patent implements dynamic resource allocation where communication lanes can be dynamically assigned for different isochronous data streams based on real-time network conditions and bandwidth requirements. This dynamic approach allows efficient utilization of available bandwidth while the system automatically manages the complexity through standardized allocation protocols and device-level automation.
Solution Approach 2:
The system dynamically adjusts communication parameters such as lane assignment, data rates, and stream prioritization based on network conditions. By automatically changing these parameters rather than requiring manual configuration, the system achieves high communication efficiency while keeping management complexity at acceptable levels through protocol-driven automation.
3Adaptability or versatility
If bi-directional streaming is supported, then application versatility and user experience improve, but resource allocation complexity and potential interference increase
Solution Approach 1:
The patent segments the communication lanes into different directional paths for bi-directional streaming, allowing independent management of forward and reverse traffic flows. This segmentation enables versatile bi-directional communication while simplifying resource allocation and path management by treating each direction as a separate manageable entity with its own resource requirements.
Data Source
AI summary
A method and system for isochronous data stream management in high speed audio/video networks. One implementation comprises isochronous communication management between audio/video (AV) devices by maintaining forwarding information for forwarding data between AV devices, wherein each AV device includes multiple I/O ports for connecting the AV device to another AV device via a communication link including multiple communication lanes. The forwarding information is utilized to communicate AV path set-up request and response control messages between a source AV device and a destination AV device via said communication link, and allocating isochronous communication resources for AV data streaming, for establishing AV path streams for bi-directional isochronous AV data streaming between the source and destination AV devices.