Optical Module Logic Processing Unit for C-RAN Fronthaul Management
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Solution Overview
Problem
Current optical module management and control in C-RAN fronthaul networks face challenges such as resource inefficiency, lack of fault awareness, and difficulty in remote management due to the need for additional channels and detection sources, which increases costs and complicates maintenance.
Innovation Solution
Incorporating a logic processing unit within the optical module that interacts with a micro-control unit to add and extract management and control information from service information, enabling remote management and control without occupying channel resources or requiring additional detection sources, thus supporting simplified Operation Administration and Maintenance (OAM) functions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a passive WDM device is used in the fronthaul network, then optical fiber resources are saved, but remote management and control of the optical module becomes difficult
Solution Approach 1:
The patent merges the management and control information transmission with the service information transmission by using the same optical fiber and WDM device. The logic processing unit multiplexes management/control packets with service data packets, allowing both to share the same physical medium without requiring separate management channels or additional detection sources.
Solution Approach 2:
The optical module's logic processing unit is designed to handle multiple functions: it processes both service information and management/control information, performs photoelectric conversion for service data, and enables remote management capabilities. This multi-functionality allows the same hardware to support both service transmission and management operations without additional dedicated components.
2Ease of operation
If additional channels and detection sources are added for management, then remote management capability is improved, but system costs increase and maintenance becomes complicated
Solution Approach 1:
The patent combines management information transmission with service information transmission in the same optical channel. The WDM device multiplexes management packets with service packets, eliminating the need for separate detection sources, additional channels, or dedicated management hardware, thereby reducing system complexity and costs.
Solution Approach 2:
The optical module includes an integrated logic processing unit that autonomously handles management and control information processing. This unit can independently extract, process, and respond to management packets without requiring external detection sources or additional hardware assistance, enabling the system to manage itself using existing infrastructure.
3Measurement precision
If management and control information is transmitted separately from service information, then management precision is improved, but channel resources are occupied and transmission efficiency decreases
Solution Approach 1:
The patent merges management/control information with service information into the same optical transmission channel using WDM technology. Different wavelengths or packet types carry different information types, allowing simultaneous transmission without interfering with each other, thus maintaining both accuracy and transmission efficiency.
Solution Approach 2:
The optical communication system is designed to handle multiple types of information (service data and management/control packets) through the same transmission channel using WDM multiplexing. This universal approach allows the system to transmit both types of information concurrently without requiring separate dedicated channels, preserving transmission efficiency while ensuring accurate delivery of management information.
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
This solution allows for efficient remote management and control of optical modules, reducing system costs and maintaining service information transmission capabilities, while simplifying operations and fault management within the optical module.
Implementation Method 1
performs photoelectric conversion by means of an optical module
Data Source
AI summary
Provided are an optical module, a management and control information processing method, and a communication system. The optical module includes: a clock recovery unit, an optical transmitting unit, an optical receiving unit, and a micro-control unit. The optical module also includes: a logic processing unit, which is configured to add first management and control information to first service information, the first service information being service information sent by the optical module to an optical module on the other side, and obtain second management and control information from second service information, the second service information being service information sent by the optical module on the other side to the optical module.