Optical Network Bandwidth Allocation with Fixed and Dynamic Sharing
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Solution Overview
Problem
Optical communication networks face issues with inefficient bandwidth allocation, leading to insufficient utilization and waste, which affects communication service quality, particularly in scenarios like Fiber To The Room (FTTR) where optical routers are connected to gateways through optical distribution networks.
Innovation Solution
A bandwidth allocation method that allocates a fixed bandwidth and a dynamic bandwidth to each optical network unit based on various basis information, including the total number of units, communication service types, and bandwidth allocation requests, ensuring efficient utilization and reducing waste.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If fixed bandwidth is allocated to each optical network unit, then bandwidth allocation is simple and stable, but bandwidth utilization is insufficient and waste occurs
Solution Approach 1:
The patent implements dynamic bandwidth allocation by adjusting bandwidth assignments based on real-time attachment states of optical network units. The optical network controller continuously monitors whether OUs are attached or detached and dynamically reallocates bandwidth resources accordingly, transforming the static fixed bandwidth allocation into a dynamic system that adapts to changing network conditions, thereby improving bandwidth utilization without excessive complexity
Solution Approach 2:
The system employs feedback mechanisms where the optical network controller receives attachment state information from optical network units and adjusts bandwidth allocation based on this feedback. When an OU is detached, the controller receives notification and reallocates its bandwidth to other attached OUs, creating a closed-loop control system that optimizes bandwidth utilization through continuous monitoring and adjustment
2Productivity
If dynamic bandwidth allocation is implemented, then bandwidth utilization improves, but allocation complexity increases
Solution Approach 1:
The patent segments bandwidth allocation into two distinct parts: guaranteed bandwidth (fixed portion) and dynamic bandwidth (adjustable portion). This segmentation allows the system to provide both stability through guaranteed bandwidth and flexibility through dynamic bandwidth allocation. The optical network controller manages these two segments differently, simplifying the overall allocation mechanism while improving efficiency
Solution Approach 2:
The system performs preliminary action by pre-allocating guaranteed bandwidth to each optical network unit before dynamic allocation occurs. This preliminary allocation ensures that each OU has a baseline bandwidth guarantee, and then dynamic adjustments are made only to the remaining bandwidth pool, reducing the complexity of real-time decision-making while maintaining high utilization
3Loss of energy
If bandwidth is not reallocated after OU detachment, then allocation process is simple, but bandwidth waste increases
Solution Approach 1:
The system implements self-service through automated bandwidth reallocation. When an optical network unit detaches, the optical network controller automatically detects the detachment event and reallocates the bandwidth without requiring manual intervention. This self-service mechanism eliminates bandwidth waste while maintaining ease of operation, as the entire reallocation process occurs automatically based on network events
Data Source
AI summary
The present application discloses a bandwidth allocation method, an optical communication system, a computer device, and a storage medium. The method comprises the steps of: allocating a fixed bandwidth to each of at least one second optical network unit (S1), obtaining first bandwidth allocation basis information (S2), and according to the first bandwidth allocation basis information, allocating a matching dynamic bandwidth to each second optical network unit (S3); or obtaining a fixed bandwidth allocated by a first optical network unit, sending first bandwidth allocation basis information to the first optical network unit, and obtaining a dynamic bandwidth allocated by the first optical network unit.