Path Control Device Adaptive Network Traffic
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Solution Overview
Problem
Existing path control methods struggle to dynamically adjust communication paths in response to changes in environmental conditions and traffic demands, making it difficult to add or delete redundant paths effectively.
Innovation Solution
A path control device and method that manage communication quality and traffic volume across radio links, dynamically setting communication paths and allocating bandwidth to ensure required quality, with the ability to create redundant paths when necessary, by using a link information management unit, traffic information management unit, and path setting unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If path control methods use predicted modulation mode and stability index for path setting, then communication quality can be guaranteed, but the system cannot dynamically add or delete redundant paths when environmental conditions change
Solution Approach 1:
The patent implements dynamic path control by continuously monitoring communication quality indicators (CQIs) of radio links and adjusting path configurations in real-time. The control device dynamically adds redundant paths when quality degrades and removes them when quality improves, making the system adaptable to changing environmental conditions while maintaining communication quality guarantees.
Solution Approach 2:
The patent employs feedback mechanisms where the control device receives CQI information from base stations about radio link quality, processes this feedback information, and adjusts path configurations accordingly. This closed-loop feedback system enables the network to respond to environmental changes by dynamically modifying path structures to maintain required communication quality.
2Reliability
If the system maintains strict communication quality requirements for all flows, then quality is guaranteed, but network resource utilization decreases due to excessive bandwidth allocation
Solution Approach 1:
The patent changes the parameter of quality requirement application by introducing priority-based differentiation. High-priority flows receive strict quality guarantees with dedicated bandwidth allocation, while low-priority flows receive quality guarantees only when network conditions permit. This parameter change allows the system to optimize resource utilization while maintaining quality for critical services.
Solution Approach 2:
The patent applies different quality levels to different flows based on their priority and service requirements. Instead of uniformly applying strict quality requirements across all traffic, the system locally adapts quality guarantees to match specific flow needs, thereby improving overall network resource utilization while ensuring quality for important communications.
3Productivity
If the system allocates bandwidth based on current traffic volume, then resource efficiency improves, but communication quality cannot be guaranteed when traffic patterns change
Solution Approach 1:
The patent prepares redundant paths in advance before they are needed, based on predicted traffic patterns and potential quality degradation scenarios. When traffic increases or quality deteriorates, these pre-prepared paths can be immediately activated without delay, thus maintaining both resource efficiency and quality guarantees through proactive path configuration.
Data Source
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AI summary
To provide a path control device and a path control method which are capable of adaptively coping with changes in a network such as a change in traffic and a change in link quality. A path control device according to the present invention is a path control device 10 that sets a communication path using multiple radio links connecting multiple communication devices, the path control device including a link information management unit 11 that manages a first communication quality of each of the radio links; a traffic information management unit 12 that manages a state of traffic flowing through the radio links; and a path setting unit 13 that sets a path of a flow such that the first communication quality satisfies a second communication quality required by the flow flowing through the radio links, based on at least one of a change in the first communication quality and a change in the traffic state.