PON Bandwidth Allocation Using SLA Ratios and Requested Bandwidth
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional dynamic bandwidth allocation methods in PON systems fail to efficiently reflect Service Level Agreement (SLA) parameters, leading to deficiencies and excesses in bandwidth allocation, resulting in increased calculation time and reduced band utilization efficiency.
Innovation Solution
A method that performs initial bandwidth allocation based on SLA parameters and subsequent adjustments based on requested bandwidths, ensuring accurate reflection of SLA ratios and minimizing calculation repetitions by allocating excess bandwidth accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If bandwidth allocation is performed repeatedly until excess is eliminated, then allocation accuracy is improved, but calculation time increases
Solution Approach 1:
The patent performs preliminary bandwidth allocation based on SLA parameters before addressing excess bandwidth. This preliminary action establishes a foundation that reduces the need for repeated calculations, as the initial allocation already incorporates SLA requirements rather than adjusting them iteratively afterward.
Solution Approach 2:
The patent segments the bandwidth allocation process into distinct phases: first allocating based on SLA parameters, then handling excess bandwidth separately. This segmentation allows each phase to be optimized independently, reducing the overall calculation iterations needed compared to a single unified iterative process.
2Productivity
If allocation is based solely on requested bandwidth ratios, then calculation speed is improved, but SLA parameter reflection is worsened
Solution Approach 1:
The patent performs preliminary allocation based on SLA parameters before considering requested bandwidth. This ensures that SLA requirements are met in the initial allocation, and only excess bandwidth is then distributed based on requested bandwidth ratios, maintaining both speed and accuracy.
Solution Approach 2:
The patent applies different allocation criteria to different portions of bandwidth: SLA parameters govern the base allocation to ensure minimum requirements, while requested bandwidth ratios govern the distribution of excess bandwidth. This local differentiation ensures both SLA compliance and efficient utilization.
3Measurement precision
If repeated calculations are performed to eliminate excess, then allocation accuracy is improved, but band utilization efficiency is worsened
Solution Approach 1:
By performing preliminary allocation based on SLA parameters, the patent establishes a solid foundation that reduces the number of iterations needed. This preliminary action ensures that essential bandwidth is allocated correctly before optimizing for excess, thereby improving overall band utilization efficiency.
Solution Approach 2:
The patent dynamically adjusts the allocation process by first satisfying SLA requirements and then distributing excess bandwidth based on real-time requested bandwidth ratios. This dynamic approach ensures optimal utilization without requiring repeated calculations, as the methodology adapts to current network conditions in a single pass.
Data Source
AI summary
The present invention provides a station-side terminal device including a control signals reading/generating section that receives a requested bandwidth which the subscriber-side terminal devices require for the communication, from each of the subscriber-side terminal devices, and an uplink band allocating section including a first calculation section that allocates a usable communication bandwidth to each of the subscriber-side terminal devices based on a ratio of a service level parameter predetermined for each of the subscriber-side terminal devices, and a second calculation section that obtains an updated usable communication bandwidth updated by subtracting a sum of the allocated bandwidths from the usable communication bandwidth, and obtains an updated requested bandwidth updated by subtracting the allocated bandwidth from the requested bandwidth, to allocate the updated usable communication bandwidth to each of the subscriber-side terminal devices based on a ratio of the updated requested bandwidth.