Virtual ONU Registration via Unique Response Timing
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Solution Overview
Problem
In existing GPON systems, when an ONU serves multiple user terminals, bandwidth sharing leads to competitive relationships among users, resulting in poor user experience and challenging management and maintenance.
Innovation Solution
A registration method and system for virtual ONUs, where each ONU receives a serial number request from the OLT, calculates and sends a unique response time for its SN response, allowing the OLT to register each virtual ONU independently, ensuring legal authentication and separate bandwidth allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If multiple user terminals share a total bandwidth through a single ONU, then the bandwidth utilization is improved, but the user experience deteriorates due to competitive relationships among users
Solution Approach 1:
The patent segments a single physical ONU into multiple virtual ONUs (V-ONUs), each serving as an independent service unit for different user terminals. This segmentation allows each virtual ONU to have dedicated bandwidth allocation and independent management, eliminating the competitive bandwidth sharing among users while maintaining efficient bandwidth utilization through the virtualization of the physical resource.
2Device complexity
If multiple user terminals share a total bandwidth through a single ONU, then the system complexity is reduced, but the management and maintenance difficulty increases
Solution Approach 1:
The patent divides the management domain into virtual units that map to physical resources. Each virtual ONU can be independently managed, configured, and maintained, allowing granular control over service parameters, bandwidth allocation, and fault isolation. This virtualization layer simplifies management by providing standardized interfaces for each service unit while enabling precise maintenance of individual virtual entities without affecting the entire system.
Solution Approach 2:
The patent introduces a virtualization layer as an intermediary between the physical ONU and user terminals. This virtualization layer acts as a mediator that manages bandwidth allocation, service configuration, and resource scheduling, simplifying the management complexity by centralizing control functions while maintaining independent service delivery to multiple users.
3Device complexity
If traditional SN-based registration is used for multiple user terminals, then the registration process is simplified, but the authentication and service isolation capability deteriorates
Solution Approach 1:
The patent segments the authentication process by assigning unique identification mechanisms to each virtual ONU. Instead of using a single SN for the physical ONU, each virtual ONU within the same physical ONU has its own identification credentials. This allows the registration process to remain relatively simple while enabling distinct authentication for each virtual entity, ensuring service isolation and preventing unauthorized access to other users' services.
Data Source
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AI summary
Disclosed in the present invention is a registration method for a virtual optical network unit (ONU), the method includes: receiving, by N virtual ONUs in a serial number (SN) state, an SN request sent by an optical line terminal (OLT); herein N is a natural number greater than or equal to 2; sending, by each virtual ONU, an SN response to the OLT; registering, by the OLT, each virtual ONU according to each SN response. Also disclosed in the present invention is a registration system for an ONU and a storage medium.