fgMTN Path Block Replacement for Uniform MTN Error Handling
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Solution Overview
Problem
The existing Metro Transport Network (MTN) technologies face challenges in ensuring the reliability and uniformity of error handling for fine grain MTN (fgMTN) path blocks, particularly in handling errors in synchronization headers, control blocks with invalid type fields, and error blocks, which affect the integrity of client information transmission.
Innovation Solution
A block processing method and apparatus that replaces fgMTN path blocks marked with errors or having invalid synchronization headers or control blocks with error blocks, and processes these blocks using Forward Error Correction (FEC) to ensure reliable transmission, including replacing client blocks with error blocks and handling different types of blocks like start, data, and termination blocks to maintain network integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If error blocks are directly transmitted in the MTN network, then the transmission process is simple, but the network reliability deteriorates due to error propagation
Solution Approach 1:
The patent converts harmful error blocks into beneficial error indication blocks that carry error information without propagating actual errors. When an error block is detected in the input signal, it is replaced with a specially marked error indication block that preserves error information for end-to-end error detection while preventing error propagation through the network, thus converting a harmful element into a useful error management mechanism.
Solution Approach 2:
The patent introduces an intermediary error indication block that acts as a mediator between error detection and error handling. This intermediate representation allows the system to detect, mark, and manage errors without directly transmitting harmful error blocks, enabling reliable error propagation control while maintaining network integrity.
2Measurement precision
If intermediate nodes process and detect all error blocks, then error detection precision is improved, but the processing time and network latency increase
Solution Approach 1:
The patent applies preliminary action by pre-marking error blocks with specific patterns at the point of detection. Instead of requiring complex analysis at each intermediate node, the error blocks are预先 marked with identifiable patterns that enable fast recognition and handling downstream, reducing processing time while maintaining detection precision.
Solution Approach 2:
The patent changes the parameter representation of error blocks by transforming them into error indication blocks with distinct marked patterns. This parameter transformation enables efficient error identification and handling at intermediate nodes without requiring complex processing, thus reducing latency while maintaining detection accuracy.
3Productivity
If error blocks are replaced with valid blocks, then transmission efficiency is improved, but error information loss occurs
Solution Approach 1:
The patent converts error blocks into error indication blocks that preserve error information in a marked format. Instead of losing error information through replacement with valid blocks, the error indication blocks carry encoded error information that can be detected and handled at the destination, maintaining both transmission efficiency and error information integrity.
Data Source
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AI summary
A block processing method, a block processing apparatus, device, and a readable storage medium are provided, and relate to the field of communications technology, to ensure reliability of an MTN. The method includes: when an MTN path block carrying a fine grain MTN (fgMTN) path is error-marked, or the block includes an invalid synchronization header, or the block is a control block with an invalid type field, or the block is an error block, replacing the fgMTN path block carried within the MTN path block with an error block. Embodiments of the present application can ensure the reliability of the MTN.