Optical Transport Network Mapping with Dynamic Payload Placement
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Solution Overview
Problem
Existing optical transport network (OTN) mapping methods, particularly Generic Mapping Procedure (GMP), require large caches to ensure proper data storage, leading to increased delay due to fixed location calculations for service containers.
Innovation Solution
Implementing an indicator in payload blocks of the optical transport network frame to dynamically adjust the location of service container data based on service container rate, allowing for rate adaptation through stuff data insertion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a larger cache is allocated for each client service to ensure proper data storage location, then the reliability of data storage is improved, but the delay increases
Solution Approach 1:
The patent implements dynamic location adjustment for service container data in payload blocks. Instead of using fixed calculated locations that require large caches, the system dynamically determines the location of service container data within payload blocks based on actual data arrival and transmission needs, allowing flexible adaptation without requiring oversized buffering capacity.
Solution Approach 2:
The patent changes the parameter of data location from fixed to variable within payload blocks. By allowing the location of service container data to vary within the payload block structure and using stuff data to fill gaps, the system adapts to different service container rates without requiring large fixed caches, thus reducing delay while maintaining storage reliability.
2Manufacturing precision
If a fixed location is calculated for service container data using sigma-delta algorithm, then the manufacturing precision of data placement is improved, but the adaptability to varying service container rates deteriorates
Solution Approach 1:
The patent makes the data placement location dynamic within payload blocks rather than fixed. The system calculates initial locations using sigma-delta algorithm but allows adjustment within payload blocks based on actual service container rate variations, combining precision calculation with dynamic adaptability.
Solution Approach 2:
The patent changes the data placement parameter from completely fixed to flexible within payload blocks. By allowing the service container data to occupy variable positions within the payload block structure and using stuff data to fill remaining spaces, the system maintains placement precision while adapting to different service container rates.
3Reliability
If a larger cache is allocated to ensure proper data storage, then the reliability of service processing is improved, but the device complexity increases
Solution Approach 1:
The patent reduces cache complexity by implementing dynamic location adjustment within payload blocks. Instead of requiring large static caches with complex allocation management, the system uses flexible positioning within the payload block structure, simplifying the cache allocation mechanism while maintaining service processing reliability.
Solution Approach 2:
The patent changes the cache usage parameter from large fixed allocation to flexible small allocation within payload blocks. By allowing service container data to be positioned dynamically within the payload block structure and using stuff data to fill gaps, the system reduces the required cache size and associated complexity while maintaining processing reliability.
Data Source
AI summary
Embodiments of the present disclosure provides a method for service processing in an optical transport network including: mapping a client service into a service container; and mapping the service container into an optical transport network frame, where a payload area of the optical transport network frame consists of payload blocks, each of the payload blocks includes an overhead area, and the overhead area includes an indicator being used for indicating whether data carried by the payload block is service container data or stuff data. The embodiments of the present disclosure further provide an apparatus for service processing in an optical transport network, an electronic device and a computer readable medium.