OAN-OTN Slice Mapping for End-to-End Optical Service Isolation
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Solution Overview
Problem
Current optical networks lack an all-optical solution capable of supporting end-to-end slicing from an optical access network (OAN) to an optical transmission network (OTN), which is essential for providing ultra-reliable low latency communication (uRLLC) services and high-quality value-added services like augmented reality (AR) and 4K/8K television.
Innovation Solution
A configuration method that establishes a mapping relationship between OAN and OTN slices based on service types, enabling end-to-end slicing by dividing OAN slices based on OAN slots and OTN slices based on OTN slots, and using Ethernet virtual connections (EVC) or internal service ports to relay service flows across these domains.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional optical networks are used without end-to-end slicing, then network simplicity is maintained, but service reliability and latency performance for uRLLC services deteriorate
Solution Approach 1:
The patent divides the optical network into multiple independent slices (end-to-end slices) that can be independently configured and managed. Each slice is assigned specific service types (e.g., uRLLC, eMBB, mMTC) with dedicated resource allocation, ensuring service reliability while maintaining overall network structure through systematic segmentation of network resources and functions.
2Reliability
If end-to-end slicing is implemented across OAN and OTN domains, then service isolation and reliability are improved, but network configuration complexity increases
Solution Approach 1:
The patent introduces a network manager as an intermediary system that automatically performs cross-domain slice mapping between OAN and OTN networks. The network manager receives service requirements, determines appropriate slice configurations in both domains, establishes mapping relationships, and manages the entire end-to-end slice lifecycle, thereby reducing configuration complexity while maintaining service isolation.
Solution Approach 2:
The patent implements preliminary configuration of slice templates and mapping rules in the network manager before actual service deployment. By pre-defining slice characteristics, resource allocation patterns, and domain mapping relationships, the system prepares the network structure in advance, reducing on-demand configuration complexity and enabling rapid service provisioning.
3Ease of operation
If OAN and OTN networks are operated independently without integration, then network management simplicity is maintained, but end-to-end service quality deteriorates
Solution Approach 1:
The patent creates a universal network manager that handles multiple functions across both OAN and OTN domains. This single management system performs slice configuration, resource allocation, mapping establishment, and service monitoring for both networks simultaneously, maintaining operational simplicity through unified management while ensuring end-to-end service quality through coordinated control.
4Productivity
If resource allocation is not optimized across domains, then resource management simplicity is maintained, but network efficiency and productivity decrease
Solution Approach 1:
The patent implements a feedback mechanism in the network manager that continuously monitors resource utilization, service performance, and slice health across OAN and OTN domains. Based on this feedback, the system dynamically adjusts resource allocation, optimizes slice configurations, and rebalances loads to maintain high network efficiency while managing complexity through automated closed-loop control.
Data Source
AI summary
The present disclosure provides a configuration method, including: determining, according to OAN service types, information of at least one OAN slice for transmitting an OAN service flow of each OAN service type; determining, according to OTN service types, information of at least one OTN slice for transmitting an OTN service flow of each OTN service type; and establishing, according to a correspondence relationship of the OAN service types and the OTN service types, a mapping relationship between the at least one OAN slice and the at least one OTN slice to obtain information of at least one end-to-end slice, where each end-to-end slice includes a set of OAN slice and OTN slice having a mapping relationship. The present disclosure further provides a data transmission method, a controller, an optical line terminal, and a computer-readable storage medium.