P2MP Optical Network Bandwidth Allocation Using Dynamic Traffic Descriptors
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Solution Overview
Problem
Existing dynamic bandwidth allocation (DBA) in point-to-multipoint (P2MP) optical networks, such as passive optical networks (PONs, is suboptimal due to fixed traffic descriptor parameters that do not adapt to changing network requirements and active applications, leading to inefficient bandwidth allocation and quality of service issues.
Innovation Solution
A computer-implemented method that dynamically updates traffic descriptor parameters based on network metrics, such as network architecture and utilization, to optimize bandwidth allocation by adjusting parameters like fixed and assured bandwidth, priority, and latency, ensuring they align with current network demands and application requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If fixed traffic descriptor parameters are used for bandwidth allocation, then the network configuration is simple and stable, but the bandwidth allocation becomes suboptimal when network requirements and applications vary over time
Solution Approach 1:
The patent implements dynamic bandwidth allocation by allowing traffic descriptor parameters to change over time based on network conditions. The system transitions from static fixed parameters to dynamic parameters that are periodically updated based on monitored network metrics such as utilization levels, active applications, and traffic patterns, enabling the network to adapt to varying requirements while maintaining operational simplicity through automated control
Solution Approach 2:
The patent employs feedback mechanisms where network metrics are continuously monitored and measured, then used to adjust traffic descriptor parameters in subsequent allocation cycles. This closed-loop control system automatically responds to changing network conditions by incorporating real-time performance data and traffic patterns into the bandwidth allocation decisions, improving adaptability without requiring manual intervention
2Productivity
If conservative bandwidth allocation is used, then quality of service is maintained under all conditions, but bandwidth efficiency and throughput decrease
Solution Approach 1:
The patent dynamically adjusts traffic descriptor parameters including fixed bandwidth, assured bandwidth, maximum bandwidth, priority levels, and latency tolerances based on monitored network metrics. By changing these parameters adaptively rather than using fixed conservative values, the system achieves better bandwidth efficiency and throughput while maintaining quality of service through automated parameter optimization that responds to actual network conditions
Data Source
AI summary
Example embodiments describe a computer-implemented method for optimizing bandwidth allocation within a point-to-multipoint, P2MP, optical network including a central network node configured to communicate with client network nodes; wherein transmission opportunities between the respective client network nodes and the central network node are allocated according to dynamic bandwidth allocation based on bandwidth demands of the respective client network nodes and constrained by traffic descriptor parameter values of the respective client network nodes; the computer-implemented method including obtaining one or more network metrics indicative for a network architecture of the P2MP optical network or a network utilization of the P2MP optical network; and, if at least one network metric meets a trigger criterion, updating one or more of the traffic descriptor parameter values to a new value based on one or more of the network metrics.