Shared Submarine Cable Landing Architecture With Redundant Routing
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Solution Overview
Problem
The process of obtaining cable landing licenses for undersea fiber optic cables is difficult, time-consuming, and expensive, and existing architectures do not facilitate the efficient sharing of terrestrial landing sites or redundant routing of signal traffic.
Innovation Solution
An undersea fiber optic cable architecture that includes a beach manhole, terrestrial station, enhanced branching units, and trunk cables, allowing for redundant routing of signal traffic and enabling additional cables to share a single landing site without requiring additional licenses, with optical switches and telemetry transceivers for rerouting in case of damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple undersea fiber optic cables are installed with separate terrestrial landing sites, then cable routing reliability is improved, but the complexity of obtaining multiple cable landing licenses increases and costs increase
Solution Approach 1:
The patent merges multiple cable landing operations into a single shared terrestrial landing site. Multiple undersea fiber optic cables are routed through common infrastructure including a single beach manhole, shared terrestrial fiber optic cables, and common enhanced branching units, thereby reducing the number of separate landing sites required and simplifying license acquisition while maintaining routing reliability through redundant cable paths
2Adaptability or versatility
If additional undersea fiber optic cables are installed at new terrestrial landing sites, then network expansion capability is improved, but the time and cost for obtaining additional licenses increases
Solution Approach 1:
The patent creates a universal shared landing site infrastructure that can accommodate multiple undersea fiber optic cables and support future network expansions. The common enhanced branching units and terrestrial cable infrastructure are designed to handle additional cables without requiring new landing sites or additional licenses, enabling time-efficient network expansion while maintaining adaptability for future growth
3Reliability
If redundant cable routing is implemented through multiple landing sites, then signal traffic reliability is improved, but the cost of acquiring and maintaining multiple landing stations increases
Solution Approach 1:
The patent combines multiple cable routing functions into a single shared landing site infrastructure. Redundant signal traffic reliability is achieved through multiple undersea cables converging at common enhanced branching units and shared terrestrial infrastructure, eliminating the need for geographically separated landing stations while maintaining the benefits of redundant routing paths
Data Source
AI summary
An undersea fiber optic cable architecture including a beach manhole (BMH) installed at a terrestrial site, a terrestrial station connected to the BMH by a terrestrial fiber optic cable, a first landing cable extending from the BMH into territorial waters adjacent the terrestrial site and connected to a first enhanced branching unit (EBU) located in the territorial waters, a second landing cable extending from the BMH into the territorial waters and connected to a second EBU located in the territorial waters, a recovery path cable connecting the first EBU to the second EBU, a first trunk cable extending from the first EBU into international waters, and a second trunk cable extending from the second EBU into the international waters.