Optical Module Inner Coding for Ethernet Error Correction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Next-generation Ethernet technologies face challenges in meeting error correction performance requirements due to increasing transmission bit error rates as bandwidth increases, with existing forward error correction schemes being inadequate for future data center interconnection architectures.
Innovation Solution
An encoding and decoding method that dynamically selects an inner-code encoding/decoding scheme based on the optical transmission mode, using spatially coupled or block algebraic codes, to ensure optimal error correction performance, delay, and energy efficiency across different transmission scenarios.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the transmission rate of Ethernet is increased to meet higher bandwidth requirements, then the bandwidth capability is improved, but the transmission bit error rate increases and error correction performance deteriorates
Solution Approach 1:
The patent implements dynamic selection of inner-code encoding schemes based on optical transmission modes. The system can switch between different encoding schemes (e.g., spatially coupled codes, block algebraic codes) depending on the transmission conditions, allowing optimal error correction performance at each transmission rate while maintaining high bandwidth capability
Solution Approach 2:
The patent changes the parameter of encoding scheme selection based on optical transmission mode. By adjusting which encoding scheme is applied according to transmission conditions, the system achieves both high transmission rates and reliable error correction performance across different operating scenarios
2Device complexity
If a fixed forward error correction scheme is used, then the device complexity is reduced, but the adaptability to different transmission scenarios deteriorates
Solution Approach 1:
The optical module is designed to support multiple inner-code encoding schemes within a single device. By incorporating universal encoding capabilities that can adapt to different optical transmission modes (point-to-point, point-to-multipoint), the system achieves both manageable complexity and high adaptability across diverse transmission scenarios
3Ease of manufacture
If traditional Reed-Solomon codes are used for forward error correction, then the ease of implementation is improved, but the error correction performance for next-generation Ethernet deteriorates
Solution Approach 1:
The patent transitions from traditional Reed-Solomon codes to more advanced encoding schemes (spatially coupled codes, block algebraic codes) when appropriate transmission conditions are detected. This parameter change in encoding methodology maintains implementation feasibility while significantly improving error correction performance for next-generation Ethernet requirements
Data Source
AI summary
An encoding method, a decoding method, and an optical module are described relating to data transmission technologies. The method, carried out by an optical module includes obtaining an optical transmission mode used for signal transmission. The method further includes receiving a signal on which outer-code encoding has been performed. The optical module determines, based on the optical transmission mode, an inner-code encoding scheme to be used by the optical module to perform inner-code encoding on the signal on which outer-code encoding has been performed. The method further includes performing, by using the inner-code encoding scheme, inner-code encoding on the signal on which outer-code encoding has been performed. The optical module outputs a signal on which inner-code encoding has been performed. As a result, error correction performance of the Ethernet may be improved.