Telecommunications Access Network Hybrid Aggregation Design
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional telecommunications access networks lack resilience against optic fiber connection failures and have limitations in bandwidth and efficiency due to the length and configuration of metallic cable connections used as backups.
Innovation Solution
A hybrid network design incorporating optic fiber to metallic pair interface aggregation points with short, sideways metallic connections between aggregation points, allowing for high bandwidth and resilience against physical trauma and failures, while also enabling efficient data transmission and signaling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If optic fiber connections are used between aggregation points, then bandwidth and transmission speed are improved, but resilience against physical trauma and connection failures deteriorates
Solution Approach 1:
The patent changes the material parameter of the connection medium from optic fiber to metallic pair, exploiting the different physical properties (particularly resistance to physical trauma) to resolve the contradiction. Metallic pairs are used specifically for backward connections between aggregation points where physical resilience is critical.
Solution Approach 2:
The access network employs a composite architecture combining both optic fiber and metallic pair connections. Optic fiber is used for forward connections where high bandwidth is needed, while metallic pairs are used for backward connections where physical resilience is prioritized, creating a hybrid system that leverages the strengths of both materials.
2Reliability
If legacy metallic cable connections are kept as backup, then resilience against fiber failures is improved, but bandwidth and transmission efficiency deteriorate due to length limitations
Solution Approach 1:
The metallic pair connections are pre-installed between aggregation points during network construction, positioned and configured in advance as active backward connections. This preliminary action ensures they are ready for immediate use as backup or alternative transmission paths without requiring lengthy deployment when failures occur.
Solution Approach 2:
The metallic pair connections serve multiple functions: they act as backward connections for normal operation, provide backup connectivity when optic fiber fails, and can serve as alternative transmission paths. This multi-functionality resolves the contradiction by making the same infrastructure serve both reliability and performance needs.
3Ease of manufacture
If dendritic network arrangement is used, then ease of manufacture and deployment are improved, but network efficiency and bandwidth utilization deteriorate
Solution Approach 1:
The patent introduces sideways connections between aggregation points at the same hierarchical level, adding a lateral dimension to the traditional vertical dendritic structure. This creates a mesh-like topology that improves network efficiency by providing alternative paths while maintaining the ease of deployment of the underlying dendritic framework.
Solution Approach 2:
The network is segmented into functional components: forward optic fiber connections for high-speed data transmission, backward metallic pair connections for resilient connectivity, and sideways metallic connections for alternative routing. This segmentation allows each component to be optimized for its specific function while working together to improve overall network efficiency.
Data Source
AI summary
A telecommunications access network comprises a primary aggregation point in the form of an exchange, a plurality of optic fiber to metallic pair interface aggregation points which may be in the form of Distribution Point Units (DPUs) each of which is connected to the primary aggregation point by a respective optical fiber connection, and a plurality of terminating devices which may be in the form of customer premises equipment (CPE) devices, each of which is connected to a respective one of the optic fiber to metallic pair interface aggregation points by a respective twisted metallic pair connection. The access network further includes a plurality of metallic, interface-interface connections between one or more pairs of the optic fiber to metallic pair interface aggregation points. Each metallic, interface-interface connection preferably comprises three or more twisted metallic pairs of wires.