Multi-Lane Data Communication Forward Error Correction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing data communication systems are inadequate for handling high-bandwidth applications such as social networks that process large amounts of multimedia data, requiring improved systems for efficient data transfer and processing.
Innovation Solution
A data communication apparatus that synchronizes and encodes 25G, 40G, 50G, or 100G signals using pseudo random bit sequence checkers, skew compensator modules, de-skew FIFO modules, transcoder modules, and forward error correction encoders, along with gear box modules and pattern generators, to ensure high-speed and reliable data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If existing data communication systems are used, then the system structure is simple, but the bandwidth capacity is insufficient for high-demand applications
Solution Approach 1:
The communication system is divided into multiple parallel lanes (e.g., four lanes for 100Gbps) to increase bandwidth capacity. Each lane operates independently at a lower rate (25Gbps per lane), allowing the system to achieve high aggregate throughput while managing complexity through modular parallel processing.
Solution Approach 2:
The system transitions from single-lane communication to multi-lane parallel communication, adding the dimension of spatial parallelism. This allows the system to scale bandwidth by adding more lanes rather than increasing the complexity of a single lane's signal processing.
2Productivity
If multiple lanes are used to increase bandwidth, then the data transfer capacity improves, but the signal synchronization becomes more difficult
Solution Approach 1:
Skew compensation is performed in advance before data processing by adjusting the timing of signals from different lanes. The system pre-calculates and applies compensation factors to align all lane signals to a common reference timeline, ensuring synchronization is established before subsequent encoding and decoding operations.
Solution Approach 2:
The system incorporates feedback mechanisms through pseudo-random bit sequence checkers that monitor signal quality and timing across lanes. This feedback information is used to dynamically adjust skew compensation and maintain synchronization as data flows through the multi-lane system.
3Productivity
If high-speed signals are transmitted, then the data transfer rate increases, but the error rate increases
Solution Approach 1:
Forward error correction encoding is applied to data before transmission across the high-speed lanes. The encoder adds redundant parity bits that allow the receiving system to detect and correct errors without requiring retransmission, enabling reliable data transfer at high speeds where errors naturally occur.
Solution Approach 2:
Pseudo-random bit sequence checkers continuously monitor the integrity of transmitted data across all lanes and provide feedback on error conditions. This feedback enables the system to detect degradation in signal quality and trigger appropriate error correction or alert mechanisms.
Data Source
AI summary
Embodiments of the present invention include an apparatus that receives date from multiple lanes, which are then aligned and synchronized for transcoding and encoding.