Burst FEC Coding by Data Length to Save Spectrum Resources
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Solution Overview
Problem
Conventional cable access technologies, such as EPON and EPoC systems, require the transmission of FEC parameters to ensure accurate data decoding, which occupies valuable spectrum resources and reduces communication efficiency.
Innovation Solution
A burst data coding and decoding method that determines the appropriate FEC coding and decoding types based on the length of the data, eliminating the need for transmitting FEC parameters by dynamically selecting the most suitable coding and decoding types for each data length range, thereby reducing redundancy and improving resource utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If FEC parameters are transmitted to ensure accurate data decoding, then decoding accuracy is improved, but spectrum resource usage increases
Solution Approach 1:
The system enables the receive end to independently determine the FEC coding type by measuring the data length of received packets and mapping it to the corresponding coding type, eliminating the need for transmit end parameters and achieving self-service decoding
Solution Approach 2:
The patent extracts and removes the FEC parameter transmission step from the communication protocol, allowing the system to function without this overhead by using data length as the determining factor for FEC type selection
2Device complexity
If a fixed FEC coding type is used for all data lengths, then device complexity is reduced, but communication efficiency deteriorates
Solution Approach 1:
The patent changes the FEC coding type parameter dynamically based on the data length parameter, creating a simple mapping relationship that adapts the coding scheme to different data sizes without complex decision logic
Solution Approach 2:
The patent segments the data length range into multiple intervals, each corresponding to a specific FEC coding type, allowing efficient handling of different data sizes through simple range comparison rather than complex analysis
3Ease of manufacture
If data is padded to match fixed coding type requirements, then coding simplicity is improved, but data redundancy increases
Solution Approach 1:
The patent makes the coding type dynamic and adaptable to the actual data length, eliminating the need for static padding operations and reducing redundancy while maintaining coding simplicity through direct mapping
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.