Terminal Device Network Handover for 5G Link Quality
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Solution Overview
Problem
The 5G system experiences poor link quality, leading to failed access requests and subsequent frame freezing and slow responses when users attempt to access the internet, as the existing doRecovery mechanism in Android systems is insufficient to address these issues.
Innovation Solution
A network handover method that allows a terminal device to switch from a 5G system to a non-5G system when data link quality parameters, such as packet loss rate, buffer latency, or data packet thresholds are met, ensuring continuous data service and improved user experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the terminal device uses the doRecovery mechanism to recover network connectivity, then the terminal device can attempt to re-establish connection through multiple stages, but the link quality remains poor and data service continuity is not ensured
Solution Approach 1:
The terminal device dynamically monitors data link quality parameters (packet loss rate, buffer latency, data packet thresholds) in real-time and automatically triggers handover from 5G to non-5G systems when deterioration is detected, transitioning from static recovery attempts to dynamic adaptive network selection
Solution Approach 2:
The system changes the network selection parameter based on detected link quality parameters, switching from 5G to non-5G systems when quality thresholds are exceeded, thereby adapting to changing network conditions and ensuring service continuity
2Stability of the object's composition
If the terminal device remains connected to the 5G system with poor link quality, then the terminal device maintains connection to the 5G network, but frame freezing and slow responses occur
Solution Approach 1:
The terminal device implements a feedback mechanism by continuously monitoring data link quality parameters and using this information to trigger handover decisions, creating a closed-loop system that responds to network conditions and prevents poor user experience
Solution Approach 2:
The system performs preliminary monitoring of link quality parameters and proactively triggers handover before severe performance degradation occurs, preventing frame freezing and slow responses by switching networks in advance
Data Source
AI summary
A network handover method and a terminal device, the method including obtaining, by a terminal device, a link quality parameter of a data link of the terminal device, determining that a 5G system accessed by the terminal device is unavailable in response to the link quality parameter meeting a specified condition, and handing over from the 5G system to a non-5G system in response to the 5G system being unavailable, where the link quality parameter includes quantities of uplink and downlink data packets received in a duration, and here the specified condition comprises the quantity of downlink data packets received in the duration by exceeding a first threshold and a quantity of sent uplink data packets being 0, or a quantity of uplink data packets sent in the duration exceeding a second threshold and the quantity of received downlink data packets being 0.