Multi-Service Mapping in Variable Optical Payload Units
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Solution Overview
Problem
The existing Optical Transport Network (OTN) technology is limited in that the ODUflex can only be applied to a single service, preventing customized mapping and transport of multiple services.
Innovation Solution
A multi-service transport method that maps M client services to a variable optical payload unit using a programmable tributary slot group frame, allowing flexible customization of transport based on client requirements, enabling mixed bearing of services with various rates and improving bandwidth utilization, while being compatible with existing ODUflex frame structures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If ODUflex is applied to a single service with fixed mapping, then the mapping and transport process is simple and stable, but the system cannot support customized transport of multiple services with varying rates
Solution Approach 1:
The patent segments the ODUflex payload area into multiple tributary slots (TS1, TS2, TS3, TS4) that can be independently allocated to different client services. Each tributary slot can carry a separate service stream, allowing the system to handle multiple services simultaneously while maintaining the ODUflex structure. This segmentation enables flexible service mapping without requiring complete redesign of the transport framework.
Solution Approach 2:
The patent introduces dynamic tributary slot allocation where the number and configuration of tributary slots can be adjusted based on service requirements. The system can dynamically configure the payload area to accommodate different service rates and types, transforming the previously static ODUflex structure into a dynamic multi-service platform. This dynamic capability allows adaptation to varying service demands while maintaining system stability.
2Adaptability or versatility
If the ODUflex frame structure is maintained for compatibility, then existing systems can continue to operate, but the system cannot implement programmable data plane operations for multiple services
Solution Approach 1:
The patent makes the ODUflex payload area multi-functional by enabling it to simultaneously carry multiple client services through tributary slots. The same payload structure that previously served a single service now serves multiple services with different rates and types. This universalization allows the system to maintain compatibility with existing ODUflex implementations while adding multi-service capabilities, avoiding the need for separate specialized structures for each service type.
Data Source
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AI summary
A multi-service transport and receiving method and apparatus are provided. The method includes: obtaining mapping transport control information of M services; determining a mapping procedure of the M services; and mapping the M services to a variable optical payload unit according to the mapping procedure. Therefore, a transport solution can be flexibly customized based on a transport requirement of a client service, so that a data plane becomes programmable.