TDM OAM Block Framing for Low-Delay Transport Slicing
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Solution Overview
Problem
There is no effective solution for transmitting OAM messages in transport networks using time division multiplexing (TDM) format, which is required for ultra-low delay and slicing applications.
Innovation Solution
An OAM message transmission method where a single OAM block is sent periodically, with specific fields indicating the start, type, and end of the message, allowing for multiple OAM messages to be carried in different types of blocks, ensuring correct processing by the receiving end device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If TDM format is used for channel isolation and slicing, then ultra-low delay and slicing requirements are met, but OAM message transmission capability is lost
Solution Approach 1:
The OAM message is segmented and embedded within TDM data blocks. Each TDM block can carry portions of OAM messages, allowing OAM functionality to be distributed across multiple TDM transmission opportunities without requiring separate dedicated channels.
Solution Approach 2:
The patent merges OAM message transmission with TDM data transmission by embedding OAM messages within the TDM block structure. This combination allows both data and OAM information to share the same transmission medium and timing structure.
2Productivity
If multiple OAM messages are carried in one OAM block, then transmission efficiency is improved, but message complexity and processing difficulty increase
Solution Approach 1:
The OAM block is segmented into distinct fields, with each field containing a specific OAM message type identifier. This structured segmentation allows receiving devices to efficiently parse and process different message types without being overwhelmed by the complexity of handling multiple undifferentiated messages.
Solution Approach 2:
Different portions of the OAM block are assigned different qualities or characteristics based on their intended use. Specific fields are designated for specific message types, allowing receiving devices to apply appropriate processing rules to each field based on its local characteristics rather than treating the entire block uniformly.
3Loss of energy
If only a single OAM block is sent per period, then transmission overhead is reduced, but message delivery completeness may be compromised
Solution Approach 1:
Multiple OAM messages are merged into a single OAM block structure, with each message placed in an appropriate field within the block. This merging allows the transmission of multiple messages in one go, reducing the number of transmission opportunities needed while maintaining completeness.
Solution Approach 2:
The OAM block is designed as a universal container that can accommodate multiple different types of OAM messages through its multiple fields. Each field can be configured to carry different message types, making the single block structure multi-functional and capable of delivering complete message sets efficiently.
Data Source
AI summary
This disclosure discloses an operations, administration and maintenance (OAM) message transmission method, apparatus, sending end device, receiving end device and storage medium. The method includes: sending an OAM block by the sending end device; wherein only a single OAM block is sent in each sending period.