PON Link Configuration for Adaptive Modulation and FEC
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional PON systems face issues of low network resource utilization, high power consumption, and high costs due to the use of a single modulation scheme, transmission rate, and forward error correction code type that are non-configurable, leading to inefficient resource allocation and increased energy consumption.
Innovation Solution
A PON system with a point-to-multipoint architecture that supports flexible configuration of modulation schemes, line rates, and FEC code types based on channel conditions and user service requirements, allowing for dynamic adjustment of network devices such as OLT and ONUs to enhance transmission efficiency and reduce costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single non-configurable modulation scheme, transmission rate, and FEC code type are used in PON system, then device complexity is reduced, but network resource utilization decreases and power consumption increases
Solution Approach 1:
The patent implements dynamic configuration where the OLT can flexibly adjust modulation schemes, line rates, and FEC code types for different ONUs based on channel conditions. The system transitions from static single-configuration to dynamic multi-configuration, allowing real-time adaptation of transmission parameters to optimize network resource utilization and reduce power consumption while maintaining manageable device complexity through automated configuration management.
2Device complexity
If a single non-configurable modulation scheme, transmission rate, and FEC code type are used in PON system, then device complexity is reduced, but power consumption increases
Solution Approach 1:
The patent changes transmission parameters (modulation scheme, line rate, FEC code type) dynamically based on channel conditions and service requirements. By adjusting these parameters, the system can operate at lower power consumption levels for ONUs with good channel conditions while maintaining high data rates, and use more robust (but power-intensive) configurations only where necessary, thereby reducing overall network power consumption while managing device complexity through automated parameter management.
3Productivity
If flexible configuration is implemented for modulation schemes, line rates, and FEC code types, then network resource utilization increases, but device complexity increases
Solution Approach 1:
The patent implements feedback mechanisms where the OLT receives channel quality information from ONUs and automatically adjusts configuration parameters accordingly. This closed-loop control system allows the OLT to make informed configuration decisions based on real-time channel conditions, service requirements, and network status, thereby achieving high network resource utilization while keeping configuration management complexity manageable through automated feedback-driven decision-making.
4Reliability
If flexible configuration is implemented for modulation schemes, line rates, and FEC code types, then network transmission quality improves, but device complexity increases
Solution Approach 1:
The patent enables the system to self-configure by having ONUs report their channel capabilities and the OLT automatically selecting appropriate modulation schemes, line rates, and FEC code types without manual intervention. This self-service approach allows the system to optimize transmission quality for each ONU based on its specific channel conditions while keeping configuration management complexity low through automated decision-making algorithms at the OLT.
Data Source
Figure 1A~1C
Figure 2~3
Figure 4A
AI summary
Provided are a communication method and device and a storage medium. The communication method applied to the first communication device includes sending a first message to a second communication device, where the first message includes flexible configuration content supported by the first communication device; receiving a second message determined by the second communication device according to the first message, where the second message includes a first communication device identifier and specific configuration content; and configuring the first communication device according to the second message to enable the first communication device to operate according to the specific configuration content.