Transmission Frame Mapping with 257-Bit Code-Block Interleaving
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Solution Overview
Problem
Current optical communication technologies lack a mapping method for 800GE services, and existing 400GE service mapping is complex, particularly due to the need for synchronous processing of 66-bit code blocks.
Innovation Solution
Perform code block-based interleaving sequentially on multiple code block streams and map the interleaved stream to a transmission frame, incorporating indication information to determine the code block location, thereby simplifying the mapping process and avoiding complex synchronous processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If code block-based interleaving is performed on multiple code block streams before mapping to transmission frame, then the mapping process is simplified and carrying efficiency is improved, but the device complexity increases due to the interleaving operation
Solution Approach 1:
The patent applies preliminary action by performing code block-based interleaving on multiple code block streams before mapping them to the transmission frame. This preliminary interleaving operation consolidates multiple streams into a single interleaved stream, which simplifies the subsequent mapping process and improves carrying efficiency, though it introduces complexity in the interleaving processing itself
2Productivity
If indication information is inserted into the transmission frame to determine code block location, then demapping speed is improved, but the transmission frame structure becomes more complex
Solution Approach 1:
The patent uses indication information as an intermediary element inserted into the transmission frame to mark code block locations. This intermediary mechanism enables rapid demapping by providing direct location indicators, avoiding the need for complex synchronous processing, while the indication information itself adds a minor structural element to the frame
3Productivity
If 257-bit code blocks are used instead of 66-bit code blocks, then carrying efficiency is improved, but the synchronization processing complexity is reduced
Solution Approach 1:
The patent applies parameter changes by transitioning from 66-bit code blocks to 257-bit code blocks. This parameter change increases the carrying efficiency significantly while reducing the need for complex synchronous processing, as the larger code block size allows for more efficient data transmission without requiring precise synchronization markers in every code block
Data Source
AI summary
Embodiments of this application disclose a transmission frame mapping and demapping method and a related device. The method in embodiments of this application includes the following steps: first, obtaining a plurality of first code block streams, where the plurality of first code block streams belong to a same service, and each of the plurality of first code block streams includes a plurality of code blocks; then, performing code block-based interleaving on the plurality of first code block streams, to obtain a second code block stream; next, mapping the second code block stream to a transmission frame, and inserting indication information into the transmission frame, where the indication information is used to determine a location of the second code block stream in the transmission frame; and further, sending the transmission frame.