Central Domain Master Routing for G.hn Networks
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Solution Overview
Problem
G.hn networks face interference and unreliable connections due to coexistence with other technologies over shared wiring, such as telephone and power lines, which complicates routing communications effectively.
Innovation Solution
A method is introduced where a central domain master node monitors topology changes, calculates and distributes routing plans, and uses flooding to ensure all nodes have updated information, even in the absence of direct connections, to optimize communication routes and avoid broken links.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If G.hn networks operate over existing wiring (telephone, coaxial, power lines), then network deployment is simplified and previous investments are leveraged, but interference and connection reliability deteriorate due to coexistence with other technologies
Solution Approach 1:
The patent introduces a central domain master as an intermediary that coordinates routing decisions and manages topology information. This mediator collects routing metrics from all nodes and computes optimal routes that avoid interfered links, thereby improving connection reliability while maintaining the simplified deployment over existing wiring infrastructure
Solution Approach 2:
The patent implements a feedback mechanism where nodes periodically report routing metrics (bandwidth, line quality, number of hops) to the central domain master. This feedback loop enables the system to adapt to changing interference conditions and dynamically adjust routing plans to maintain reliable connections despite the noisy environment
2Productivity
If distributed routing logic is implemented where nodes periodically poll the visible network, then routing optimization is achieved, but network complexity and overhead increase
Solution Approach 1:
The patent segments the routing functionality by separating the control plane from the data plane. The central domain master handles the complex routing computation and decision-making, while individual nodes only need to report metrics and forward data according to simple instructions. This segmentation reduces the routing logic complexity at each node while maintaining overall routing optimization
Solution Approach 2:
The patent merges the routing computation function into a single central domain master node. Instead of each node independently running complex routing algorithms, all routing decisions are centralized, reducing individual node complexity while achieving network-wide optimization through consolidated computation
3Speed
If direct transmission paths are used between nodes in the same area, then transmission speed is maximized, but interference from shared wiring causes connection failures and reduces reliability
Solution Approach 1:
The patent uses the central domain master as an intermediary that identifies and routes traffic around interfered links. When direct paths are compromised by interference from shared wiring (power surges, analog traffic), the domain master computes alternative routes through intermediate nodes, maintaining reliable transmission even if it requires additional hops
Solution Approach 2:
The patent implements dynamic routing where transmission paths are not fixed but adapt to current network conditions. The system continuously monitors line quality and bandwidth availability, dynamically adjusting routes to avoid interfered segments. This dynamic approach allows the network to maintain reliable connections by switching paths when interference occurs, rather than being locked into static direct routes
Data Source
AI summary
A method for routing communications on a network node in a communications network includes: updating a central domain master regarding changes detected in topology, receiving a routing plan from the central domain master, where the routing plan is calculated at least in accordance with the changes, and transmitting data as necessary in accordance with the routing plan. A method implementable on a central domain master for routing communications between network nodes in a communications network includes receiving transmissions regarding changes detected in topology from the network nodes, calculating a routing plan based on at least the transmissions, and distributing the routing plan to the network nodes, where the central domain server is one of the network nodes.