Multipath Scheduler With Adjustable Traffic Shapers
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Solution Overview
Problem
Existing multipath communication systems face challenges in optimizing quality of service, reducing latency, and increasing usable bandwidth for data traffic across multiple access networks, particularly in hybrid access networks combining wireless and fixed line technologies.
Innovation Solution
A multipath capable communication device with multiple communication paths, a multipath scheduler, and adjustable traffic shapers to distribute and limit bandwidth based on path metrics, allowing flexible traffic shaping and steering across different access interfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traffic shaping is implemented to optimize quality of service and reduce latency, then data transmission efficiency is improved, but device complexity increases due to multiple traffic shapers and schedulers
Solution Approach 1:
The device segments traffic management into multiple independent traffic shapers (first traffic shaper, second traffic shaper, third traffic shaper) each responsible for specific communication paths, and a multipath scheduler that coordinates them. This segmentation allows optimized traffic shaping for different paths while maintaining manageable complexity through modular design
Solution Approach 2:
The multipath scheduler acts as an intermediary component that coordinates between the multiple traffic shapers and communication paths. It receives traffic classification information and directs traffic to appropriate shapers, simplifying the overall control logic while enabling sophisticated traffic management
2Productivity
If multiple communication paths are used to increase usable bandwidth, then data throughput is improved, but path metric evaluation and traffic distribution complexity increases
Solution Approach 1:
The system uses path metrics as adjustable parameters to evaluate and select communication paths. By changing path metric values based on network conditions, the system can dynamically optimize throughput without requiring complex real-time path selection algorithms, simplifying the evaluation process
3Loss of time
If bandwidth limiting values are adjusted to optimize quality of service, then latency is reduced, but control complexity increases due to multiple adjustable parameters
Solution Approach 1:
The traffic shapers incorporate adjustable bandwidth limiting values that can be dynamically modified based on traffic conditions and quality of service requirements. This dynamic adjustability allows latency optimization without requiring complex static configuration, as the system adapts to changing conditions automatically
Data Source
AI summary
A multipath capable communication device includes: a first communication path and a second communication path configured to provide data traffic to be transmitted; at least one control unit; a multipath scheduler configured to distribute data traffic to the first communication path and/or to the second communication path based on a first path metric; a first traffic shaper configured to limit the total bandwidth allocated to the communication device to a first adjustable bandwidth limiting value; and a second traffic shaper configured to limit the bandwidth allocated to the first communication path to a second adjustable bandwidth limiting value and/or a third traffic shaper configured to limit the bandwidth allocated to the second communication path to a third adjustable bandwidth limiting value. The at least one control unit is configured to control the multipath scheduler, the first traffic shaper, and the second traffic shaper and/or third traffic shaper.