Unified ONU Registration via Wavelength-Based Signal Routing
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Solution Overview
Problem
The existing ONU registration process in GPON and XG-PON systems is cumbersome, requiring separate registration methods for GPON and XG-PON ONUs, which complicates management and increases administrative overhead.
Innovation Solution
An optical line terminal (OLT) with a built-in wavelength division multiplexer that directs uplink optical signals to appropriate MAC modules based on wavelength, allowing for unified registration management of GPON and XG-PON ONUs by extracting and verifying authentication information, and configuring service parameters such as ONU-ID, TCONT-ID, and GEM port ID.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate registration methods are used for GPON and XG-PON ONUs, then authentication accuracy is maintained, but device complexity and administrative overhead increase
Solution Approach 1:
The patent implements a universal registration method that can handle both GPON and XG-PON ONU types through a single unified process. The OLT uses wavelength-based signal routing to direct uplink signals to appropriate MAC modules (GPON MAC module for 1310nm wavelength, XG-PON MAC module for 1270nm wavelength), while maintaining a single registration entry in the ONU information table. This eliminates the need for separate registration procedures for different ONU types, reducing administrative overhead while preserving authentication accuracy through wavelength-based automatic routing.
Solution Approach 2:
The patent changes the routing parameter from manual configuration to automatic wavelength-based detection. By detecting the wavelength of uplink optical signals, the system automatically determines whether to route to the GPON MAC module or XG-PON MAC module, eliminating the need for manual protocol selection and reducing registration process complexity while maintaining accurate authentication for each ONU type.
2Reliability
If separate registration methods are used for GPON and XG-PON ONUs, then protocol-specific authentication is ensured, but productivity and registration efficiency decrease
Solution Approach 1:
The system performs self-service by automatically detecting the ONU type through wavelength detection of uplink signals and autonomously routing to the appropriate MAC module. This eliminates the need for manual intervention to determine whether an ONU is GPON or XG-PON type, allowing rapid registration without administrative overhead while ensuring protocol-specific authentication is automatically applied based on the detected wavelength.
Solution Approach 2:
The patent changes the authentication parameter from manual protocol selection to automatic wavelength-based protocol determination. The system detects the wavelength parameter of incoming uplink signals and automatically selects the appropriate authentication protocol (GPON or XG-PON), dramatically improving registration efficiency while maintaining protocol-specific authentication requirements.
3Measurement precision
If manual ONU type identification is implemented, then registration accuracy is maintained, but loss of time and administrative overhead increase
Solution Approach 1:
The patent replaces the manual mechanical process of ONU type identification with an optical-based automatic detection system. By using wavelength detection of uplink optical signals, the system automatically identifies whether an ONU is GPON or XG-PON type without manual intervention, maintaining accurate identification while eliminating the time loss associated with manual configuration and administrative procedures.
Solution Approach 2:
The wavelength parameter serves as an intermediary that automatically carries information about the ONU type. By detecting the wavelength of uplink signals, the system obtains accurate ONU type identification without manual intervention, as the wavelength itself encodes the ONU type information (1310nm for GPON, 1270nm for XG-PON), enabling rapid and accurate registration.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Simplifies the ONU registration process, improves efficiency by enabling uniform management of both GPON and XG-PON ONUs, and reduces administrative complexity through automated wavelength-based signal routing and authentication.
Implementation Method 1
the wavelength division multiplexer is configured to: when a wavelength of a lightwave bearing the uplink optical signal is a first wavelength, send the uplink optical signal to a first MAC module, or when a wavelength of a lightwave bearing the uplink optical signal is a second wavelength, send the uplink optical signal to a second MAC module
Data Source
Figure 1~2a
Figure 2b
Figure 3a
AI summary
Embodiments of the present invention provide an optical network unit ONU registration method, apparatus, and system, to resolve a problem in the prior art that a registration process is cumbersome. The method includes: receiving an uplink optical signal, where the uplink optical signal carries ONU authentication information; sending the optical signal to a corresponding MAC module separately according to a wavelength of uplink light; extracting, by the MAC module, the ONU authentication information, and sending the extracted ONU authentication information to a processor; and receiving, by the processor, the ONU authentication information, and determining whether the ONU authentication information is consistent with ONU authentication information configured by an OLT, where if yes, an ONU is registered successfully. According to the ONU registration method used by this embodiment of the present invention, a processor performs uniform registration management on a GPON ONU and an XG-PON ONU, thereby simplifying an ONU registration process and improving efficiency.