Terminal Device Communications System Switching Policy
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Solution Overview
Problem
Current terminal devices can only switch communications systems based on a single QoS threshold, failing to meet the intelligence requirements and resulting in suboptimal performance and increased power consumption.
Innovation Solution
A method for a terminal device to select a communications system based on a preset policy and QoS requirements of applications, considering factors like QoS values, user preferences, and power consumption, allowing for flexible switching between systems to meet specific service needs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If the terminal device switches communications systems based on a single QoS threshold, then the switching process is simple, but the intelligence requirement cannot be met and power consumption increases
Solution Approach 1:
The patent changes the single QoS threshold parameter into multiple switching conditions including QoS thresholds, signal strength thresholds, and application-specific parameters. This allows the terminal device to make intelligent switching decisions based on different scenarios while avoiding unnecessary frequent switching, thereby reducing power consumption.
Solution Approach 2:
The patent introduces dynamic switching conditions that adapt based on application requirements and network states. Different applications can set different QoS requirements, and the switching policy dynamically adjusts based on current network conditions, enabling intelligent decision-making without excessive power consumption.
2Reliability
If the terminal device frequently switches communications systems to find better QoS, then the QoS quality improves, but the switching complexity and power consumption increase
Solution Approach 1:
The patent segments the switching decision process into multiple independent conditions: QoS threshold conditions, signal strength conditions, and application-specific conditions. Each condition can be evaluated independently, and the terminal device only switches when multiple conditions are met, reducing unnecessary switching complexity while maintaining QoS quality.
Solution Approach 2:
The patent evaluates multiple switching conditions partially - not all conditions need to be fully satisfied for switching to occur. The policy allows flexible combination of conditions based on application requirements, reducing switching complexity while ensuring adequate QoS quality through selective condition evaluation.
3Adaptability or versatility
If the terminal device uses multiple switching conditions and policies, then the intelligence and flexibility improve, but the system complexity increases
Solution Approach 1:
The patent pre-configures multiple switching conditions and policies before actual switching occurs. Application-specific QoS requirements are set in advance, and the terminal device simply evaluates current conditions against these pre-defined policies, achieving high flexibility without increasing real-time system complexity.
Data Source
AI summary
A communications system switching method and a terminal device establish, by the terminal device, a connection to a first communications system, run a first application, obtain a QoS value of a second communications system, determine based on a preset policy and a QoS requirement of the first application, whether the QoS value of the second communications system meets the QOS requirement of the first application. When the QoS value of the second communications system meets the QOS requirement of the first application, the terminal device disconnects from the first communications system and establishes a connection to the second communications system.