Optical Access Network Slice Connection Method
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Solution Overview
Problem
Traditional optical access network systems are inflexible and require new devices to be built for each service, limiting their ability to rapidly introduce or expand new services, as they are structured with fixed functions and lack the capability to provide multiple services efficiently within a single optical distribution network.
Innovation Solution
The system divides a single optical distribution network into multiple logical optical access network slices, allowing for the selection and combination of slices based on the service features requested by host devices, with optical network units (ONUs) and optical line terminals (OLTs) managing slice connections, bandwidth allocation, and priority settings to optimize data transmission and reception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a typical optical access network system is implemented as a device with fixed functions, then the structural stability is maintained, but the adaptability to introduce new services is poor
Solution Approach 1:
The patent segments the optical access network into multiple independent network slices, each capable of supporting different services. This segmentation allows the system to introduce new services by creating new slices without modifying the overall network structure, thereby improving adaptability while maintaining structural stability.
Solution Approach 2:
The patent implements dynamic service introduction through the ability to create, modify, and delete network slices on demand. The system dynamically allocates resources to slices based on service requirements, enabling flexible adaptation to new services without rigid structural constraints.
2Productivity
If a typical optical access network system uses fixed functional devices, then the manufacturing simplicity is maintained, but the service expansion speed is slow
Solution Approach 1:
The patent creates a universal network slice management platform that can support multiple service types through a single system architecture. This multi-functional approach allows rapid service expansion by reusing existing infrastructure while implementing new services through software-defined slices, eliminating the need for separate dedicated devices for each service.
Solution Approach 2:
The patent enables rapid service introduction by dynamically changing network parameters such as bandwidth allocation, priority levels, and routing paths through slice configuration. This parameter-based flexibility allows the system to adapt to new services without physical reconfiguration, significantly speeding up service expansion.
3Quantity of substance
If a single optical distribution network provides multiple services, then the resource utilization is improved, but the service differentiation capability is challenging
Solution Approach 1:
The patent applies local quality by assigning different characteristics to different network slices, such as varying bandwidth allocations, priority levels, and latency requirements. Each slice can be optimized for specific service needs while sharing the same physical infrastructure, enabling both high resource utilization and effective service differentiation.
Solution Approach 2:
The patent introduces network slices as intermediary logical structures between the physical network infrastructure and the services. These slices act as mediators that translate diverse service requirements into standardized resource allocation mechanisms, enabling multiple services to coexist on a single optical distribution network with proper differentiation.
Data Source
AI summary
Disclosed is a slice connection method of an optical access network and an optical access network system for slice connection. A slice connection method performed by an optical network unit (ONU) of an optical access network system may include determining a service type of a host device transmitting a service connection request, determining a slice based on the service type, sending a request for connection to the slice to an optical line terminal (OLT), and relaying data transmission and reception between the OLT and the host device when a slice connection response corresponding to the request is received from the OLT.