Optical Module Time Sequence Registers for Adaptive OLT Configuration
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Solution Overview
Problem
Existing optical line termination (OLT) systems in passive optical networks (PON) struggle with inflexible time sequence information adaptation, leading to compatibility issues when new optical modules with different time sequence requirements are introduced, hindering normal data exchange and upstream burst data reception.
Innovation Solution
Implement a method where the OLT performs interactive authentication with optical modules to determine and configure time sequence parameters, allowing for flexible adaptation without modifying the OLT's stored information, by using a time sequence coefficient and parameter to adjust burst overhead data, preamble length, and reset signal location.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the OLT stores fixed time sequence information, then the system configuration is simple, but the OLT cannot adapt to optical modules with different time sequence requirements
Solution Approach 1:
The patent implements dynamic time sequence information configuration by allowing the OLT to read time sequence parameters from the optical module's register and automatically adjust configuration based on the module's actual capabilities. This transforms the static, fixed configuration into a dynamic, adaptive system that automatically configures itself based on the connected optical module's characteristics.
Solution Approach 2:
The optical module stores its own time sequence parameters in its register, and the OLT reads these parameters directly from the module without requiring manual configuration or external intervention. The system achieves self-configuration through automated parameter reading and application, eliminating the need for complex manual setup procedures.
2Reliability
If the OLT uses fixed time sequence information, then the configuration process is simple, but normal data exchange cannot be ensured when optical module time sequence changes
Solution Approach 1:
The system implements feedback by having the OLT read the actual time sequence parameters from the optical module's register during operation. This feedback mechanism ensures that the OLT always uses the correct time sequence information corresponding to the connected module, guaranteeing reliable data exchange while maintaining simple operation through automated parameter acquisition.
Solution Approach 2:
The time sequence parameters are pre-stored in the optical module's register during manufacturing. When the module is installed, the OLT automatically reads these pre-configured parameters without requiring manual setup, ensuring both reliability of data exchange and ease of operation through preliminary parameter preparation.
3Adaptability or versatility
If manual configuration of time sequence information is used, then flexibility is reduced, but configuration accuracy can be ensured
Solution Approach 1:
Each optical module stores its own accurate time sequence parameters in its register, reflecting its specific characteristics. The OLT reads these self-provided parameters directly from the module, ensuring both high adaptability to different module types and high configuration precision, as each module provides its own accurate specification data without manual intervention.
Solution Approach 2:
The system allows time sequence parameters to vary dynamically based on the specific optical module connected. By reading parameters directly from each module's register, the system adapts to different parameter values for different module types while ensuring accurate configuration for each specific module, achieving both versatility and precision through parameter variability.
Data Source
AI summary
An OLT performs interactive authentication with an optical module, and determines a time sequence parameter of the optical module. The optical module stores the time sequence parameter in a register of the optical module. When the optical module is inserted into the OLT and is in a working state, the OLT reads the time sequence parameter stored in the optical module. Then, based on the time sequence parameter, the OLT determines and configures time sequence information of an ONU corresponding to the optical module.