Home Network Session Routing for HDBaseT Path Optimization
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Solution Overview
Problem
Current HD transmission technologies, such as HDBaseT, face limitations in transmission rate, capacity, and complexity of wiring, particularly in supporting multiple devices and bi-directional communication over long distances, and lack efficient methods for configuring optimized session paths in home networks.
Innovation Solution
The implementation of a home network system that uses Link Status Request and Notify messages to identify devices and calculate optimal routing paths, enabling efficient management and configuration of sessions within the HDBaseT network, allowing for high-definition video/audio transmission, data communication, and power supply through a single cable.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If HDBaseT technology is used to transmit uncompressed HD video and audio through a single cable, then wiring complexity is reduced and transmission capacity is improved, but transmission rate and distance limitations remain
Solution Approach 1:
The patent segments the transmission medium into multiple paths by introducing session routing protocols that can select different physical paths through the network. This allows the system to overcome single-cable limitations by distributing traffic across multiple available paths, effectively increasing transmission capacity and rate while maintaining the simplified single-cable HDBaseT architecture.
Solution Approach 2:
The patent implements multi-functional capability by enabling the HDBaseT network to support both uncompressed video/audio transmission and routed data communication simultaneously. The session routing mechanism provides universal applicability across different transmission scenarios, allowing the same infrastructure to adapt to varying rate and distance requirements through intelligent path selection.
2Productivity
If session routing is implemented in HDBaseT network, then optimized path calculation improves transmission efficiency, but system complexity increases
Solution Approach 1:
The patent applies preliminary action by pre-calculating and storing optimal routing paths using link-state routing algorithms before actual data transmission. The session routing information is prepared in advance and cached in routing tables, allowing rapid path selection during transmission without real-time calculation overhead. This approach improves transmission efficiency while minimizing the complexity burden during operational phases.
Solution Approach 2:
The patent introduces session routing protocols and routing processors as intermediary components that mediate between the HDBaseT physical layer and the application layer. These intermediaries handle the complex path calculation and selection tasks, isolating the complexity from the core transmission functionality. The routing intermediaries manage path optimization while presenting a simplified interface to the rest of the system.
3Quantity of substance
If multiple devices are connected through HDBaseT cable, then transmission capacity is improved, but difficulty in supporting bi-directional communication and USB/networking increases
Solution Approach 1:
The patent implements dynamic adaptability by introducing session-based routing that can dynamically adjust communication directions and paths based on real-time requirements. The system transitions from static HDMI-like connections to dynamic session routes that can be configured for bi-directional communication, USB networking, and other protocols. This dynamic approach allows the same physical infrastructure to support multiple communication modes and device configurations.
Solution Approach 2:
The patent changes key operational parameters by moving from fixed HDMI protocol constraints to flexible session-based parameter configuration. The system allows parameter changes in communication direction, data rate, protocol type, and path selection based on session requirements. This parameter flexibility enables support for bi-directional communication, USB networking, and other protocols while maintaining high transmission capacity through the HDBaseT infrastructure.
Data Source
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AI summary
Relating to a home network system, methods for configuring sessions in a home network system and setting up optimized paths of the configured sessions and apparatuses for supporting the same. According to an embodiment, the method for computing a routing path includes the steps of transmitting a Link Status Request message data requesting Link information from a first device to a second device, receiving a Link Status Notify message including Link information on the second device from the second device, updating a Link Status table based upon the Link information on the second device, computing Routing Path information from a source device to a sink device based upon the Link Status table, and computing information on a transmission port being used in the routing path based upon the Routing Path information.