Dynamic Transmission Interval Balancing Latency Bandwidth
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Solution Overview
Problem
In communication networks, dynamic bandwidth assignment (DBA) faces a trade-off between latency and bandwidth efficiency, as configuring the interval and length of transmission opportunities often results in either excessive latency or inefficient bandwidth usage due to sub-optimal service parameter settings and varying latency requirements.
Innovation Solution
A central network node dynamically adjusts the configurable interval of transmission opportunities to match the average ingress interval of packets, optimizing the balance between latency and bandwidth efficiency by actively tracking and adapting to the instantaneous traffic needs of client network nodes, and enabling low power modes to reduce energy consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If a small configurable interval is used for transmission opportunities, then latency is reduced, but bandwidth efficiency deteriorates due to substantial overhead from frequent header transmissions
Solution Approach 1:
The patent implements dynamic adjustment of the configurable interval for transmission opportunities based on real-time traffic conditions. The system monitors packet arrival rates and adapts the transmission interval accordingly, transitioning from static to dynamic configuration. This allows the system to optimize the trade-off between latency and bandwidth efficiency by adjusting the interval dynamically rather than using a fixed small interval that causes excessive overhead.
Solution Approach 2:
The system changes the configurable interval parameter based on observed traffic patterns and packet arrival rates. By monitoring the actual traffic conditions and adjusting the transmission opportunity interval parameter dynamically, the system achieves optimal bandwidth efficiency while maintaining acceptable latency performance for varying traffic loads.
2Productivity
If a large configurable interval is used for transmission opportunities, then bandwidth efficiency is improved with lower overhead, but latency becomes excessive
Solution Approach 1:
The patent employs feedback mechanisms where the system monitors packet arrival rates and queue conditions, then uses this information to adjust the configurable interval for transmission opportunities. This closed-loop control ensures that the interval is neither too small (causing excessive overhead) nor too large (causing excessive latency), but optimized based on actual traffic conditions.
Solution Approach 2:
The configurable interval transitions from a static large value to a dynamically adjusted parameter that responds to traffic conditions. The system continuously adapts the interval based on observed packet arrival patterns, maintaining optimal bandwidth efficiency while preventing excessive latency when traffic demands require more frequent transmissions.
3Device complexity
If static service parameters are configured for bandwidth assignment, then configuration simplicity is maintained, but adaptability to varying latency requirements deteriorates
Solution Approach 1:
The system implements self-service functionality where the network automatically monitors traffic conditions and adjusts transmission parameters without requiring manual reconfiguration. The configurable interval and bandwidth parameters are adapted dynamically based on observed packet arrival rates and queue conditions, eliminating the need for complex manual configuration while maintaining simplicity in operation.
Solution Approach 2:
The patent transforms static service parameters into dynamic ones that automatically adapt to varying traffic conditions and latency requirements. The system monitors packet arrival patterns and adjusts the configurable interval and bandwidth allocation accordingly, providing both configuration simplicity and adaptability to changing network conditions.
Data Source
AI summary
Example embodiments describe a central network node configured to communicate in a point-to-multipoint network with client network nodes; wherein the client network nodes respectively includes one or more transmission queues; wherein a respective transmission queue has a recurrent transmission opportunity for transmitting data from the respective transmission queue to the central network node; and wherein the recurrent transmission opportunity has a configurable interval and a configurable length. The central network node is configured to perform, for the respective transmission queues obtaining an average ingress interval of packets arriving at the transmission queue; and matching the configurable interval with the average ingress interval.