Burst FEC Coding by Data Length to Save Spectrum Resources
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Solution Overview
Problem
Conventional cable access technologies, such as EPON systems, require the transmission of FEC parameters to ensure correct data decoding, which occupies valuable spectrum resources and reduces communication efficiency.
Innovation Solution
A burst data coding method that determines the appropriate FEC coding type based on the length of the data, allowing for flexible selection of coding types according to data length ranges, thereby reducing the need for transmitting FEC parameters and improving resource utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If FEC parameters are transmitted to ensure correct data decoding, then data transmission reliability is improved, but spectrum resource utilization deteriorates
Solution Approach 1:
The system enables the receiving end to autonomously determine the FEC coding type by detecting data length and using pre-stored correspondence relationships, eliminating the need for parameter transmission and achieving self-service decoding without external assistance
Solution Approach 2:
The correspondence relationships between data length ranges and FEC coding types are pre-established and stored in both transmitting and receiving ends before actual data transmission, enabling rapid determination without real-time parameter exchange
2Device complexity
If a single FEC coding type is used for all data lengths, then device complexity is reduced, but adaptability to different data scenarios deteriorates
Solution Approach 1:
The data length space is segmented into multiple ranges, with each range corresponding to a specific FEC coding type, allowing the system to adapt to different data lengths while maintaining manageable complexity through structured classification
Solution Approach 2:
The system changes the FEC coding type parameter based on the data length parameter, automatically selecting the appropriate coding scheme (e.g., first FEC coding type for shorter data, second FEC coding type for longer data) without requiring complex manual configuration
Data Source
AI summary
Embodiments of the present disclosure provide an FEC coding and decoding method and device, and a system. A transmit end determines a forward error correction FEC coding type according to a length of to-be-coded data in burst data, and performs coding according to the determined FEC coding type. A receive end determines a forward error correction FEC decoding type according to a length of to-be-decoded data in burst data, and performs decoding according to the determined FEC decoding type. The FEC coding and decoding method provided in the embodiments of the present disclosure improves utilization of a communication resource is improved, and saves a communication resource.