Delay Based Scheduler for Access Node Congestion Management
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Telecommunication systems face challenges in managing network congestion, leading to delayed data transmission, which affects the quality of service, especially when a portion of the network experiences high load.
Innovation Solution
A delay-based scheduler is configured for an access node to inspect packets marked for network congestion and calculate a remaining time for transmission based on a packet delay budget associated with the application, ensuring timely scheduling of packets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a portion of the network experiences high load, then network traffic increases, but data transmission delay increases
Solution Approach 1:
The scheduler dynamically changes scheduling parameters based on packet delay budgets and congestion marks. Packets are scheduled based on their remaining time calculated from delay budgets, allowing the system to adapt transmission priorities to current network conditions and application requirements, thereby reducing transmission delays under high load
Solution Approach 2:
The system uses congestion marks on packets as feedback indicators. When packets are marked as congested, the scheduler adjusts its behavior by calculating remaining time based on delay budgets and prioritizing packets accordingly. This feedback mechanism allows the network to respond to congestion conditions and maintain acceptable transmission delays
2Quantity of substance
If network congestion occurs, then packet transmission volume increases, but service quality deteriorates
Solution Approach 1:
The scheduler applies different scheduling qualities to different packets based on their congestion marks and delay budgets. Packets with tighter delay budgets or congestion marks receive different treatment than standard packets, ensuring that critical packets maintain service quality even when overall network congestion occurs
Solution Approach 2:
Congestion marks on packets serve as feedback that triggers quality-of-service adjustments. The scheduler monitors these marks and adjusts scheduling decisions to maintain service quality, ensuring that marked packets receive appropriate priority handling to prevent quality deterioration during congestion
Data Source
AI summary
Systems and methods are described for configuring a delay based scheduler for an access node. A plurality of packets may be received at an access node, where at least a first packet is associated with an application running on a wireless device in communication with the access node. The plurality of packets may be inspected to determine that one or more of the packets associated with the application are marked, where the mark indicates network congestion. A remaining time for the first packet may be calculated based on a packet delay budget associated with the running application and the determination that one or more of the packets associated with the application are marked. The first packet may then be scheduled for transmission to the wireless device, using a delay based scheduler, based on the calculated remaining time.