Optical Network Time-Slot Separation for Main and Backup Downstream Data
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Solution Overview
Problem
Optical terminals with low reliability experience conflicts when receiving both main and backup data streams simultaneously due to the Type C protection mechanism in gigabit passive optical networks, leading to unsuccessful backup of main data.
Innovation Solution
Implementing a time division method where main and backup data streams are sent in non-overlapping time slots, ensuring the optical terminal receives each stream separately to avoid conflicts, and using separate optical ports for high and low reliability terminals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If Type C protection is used to ensure successful data transmission between optical head end and optical terminal, then reliability of data transmission is improved, but conflict occurs when optical terminal receives both main and backup data streams simultaneously
Solution Approach 1:
The patent applies periodic action by implementing time-division multiplexing where the optical terminal alternates between receiving main data streams and backup data streams in periodic time slots. The terminal receives main data during main time periods and backup data during backup time periods, preventing simultaneous reception conflicts while maintaining transmission reliability through structured periodic switching.
2Reliability
If optical terminal with low reliability uses Type C protection with separate optical ports, then backup capability is improved, but network complexity and costs increase
Solution Approach 1:
The patent applies merging by allowing a single optical port to handle both main and backup data reception functions through time-division multiplexing. Instead of requiring separate optical ports for main and backup connections, the same port is shared across different time periods, reducing network complexity and costs while maintaining backup capability through temporal separation of data streams.
3Reliability
If optical terminal receives main and backup data streams simultaneously, then backup of main data is improved, but conflict prevents successful processing
Solution Approach 1:
The patent applies segmentation by dividing the data reception process into distinct temporal segments. The optical terminal processes main data streams during designated main time periods and backup data streams during separate backup time periods. This temporal segmentation eliminates processing conflicts by ensuring that only one data stream type is processed at any given moment, while still providing effective backup coverage.
Data Source
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AI summary
This application provides a data transmission method, an optical network, a related device, and a storage medium, to effectively avoid a conflict occurring when an optical terminal receives a main downstream data stream and a backup downstream data stream, thereby effectively ensuring that the backup downstream data stream is successful backup of the main downstream data stream. The method includes: An optical head end obtains a main downstream slot and a backup downstream slot between which an intersection set is an empty set on a time axis. The optical head end occupies the main downstream slot, and sends a main downstream data stream to an optical terminal over a main link. The optical head end occupies the backup downstream slot, and sends a backup downstream data stream to the optical terminal over a backup link.