Network Switching Method Optimizing Transmission Delay
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Solution Overview
Problem
Existing network switching methods based on signal strength alone fail to improve transmission quality when both WiFi and mobile network signals are poor, leading to frequent switching and increased power consumption, known as the 'ping-pong effect', which affects indoor data internet access and voice calls.
Innovation Solution
An electronic device acquires source and target signal strengths and transmission delays, switching to a communication network based on these conditions to optimize data transmission, ensuring better call quality by determining the target network when the source network's signal strength is poor and comparing transmission delays to prevent poorer call quality after switching.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If network switching is performed based on signal strength alone, then switching between WiFi and mobile network can be triggered, but frequent switching occurs when both networks have poor signal strength, causing ping-pong effect and increased power consumption
Solution Approach 1:
The patent changes the switching decision parameters from only signal strength to a composite evaluation including signal strength, transmission delay, and packet loss rate. This multi-parameter approach prevents premature switching when signal strength alone is insufficient, thereby reducing ping-pong effects and associated power consumption.
Solution Approach 2:
The patent implements feedback mechanisms by continuously monitoring transmission quality metrics (delay, packet loss) after switching occurs. This feedback allows the system to evaluate whether switching actually improved transmission quality, and to adjust future switching decisions accordingly, preventing unnecessary switches that would increase power consumption.
2Reliability
If network switching is performed based on signal strength alone, then switching between WiFi and mobile network can be triggered, but transmission quality does not improve when both networks have poor signal strength
Solution Approach 1:
The patent introduces additional evaluation parameters (transmission delay, packet loss rate) beyond signal strength to make switching decisions. This comprehensive parameter set ensures that switching only occurs when it will genuinely improve transmission quality, not merely when signal strength thresholds are met.
Solution Approach 2:
The patent performs preliminary evaluation of multiple parameters (signal strength, delay, packet loss) before executing a network switch. This preliminary assessment ensures that switching decisions are made only when they will actually improve transmission quality, avoiding unnecessary switches between poor-quality networks.
3Reliability
If transmission delay is considered in network switching, then better call quality can be achieved by selecting networks with lower delay, but switching decision complexity increases
Solution Approach 1:
The patent incorporates transmission delay as a key parameter in the switching decision process. By evaluating delay alongside signal strength and packet loss, the system can identify networks that provide both adequate signal and acceptable delay characteristics, thereby improving call quality for voice applications.
Solution Approach 2:
The patent applies different evaluation weights to different parameters based on the specific application scenario. For voice calls, transmission delay is given higher importance, while for data applications, signal strength may be prioritized. This localized quality approach optimizes call quality without unnecessarily complicating data transmission decisions.
Data Source
AI summary
Disclosed in the present application are a network switching method, a storage medium, and an electronic device. The method comprises: when a source signal strength and a target signal strength meet a preset condition, determining a communication network according to a source transmission delay and a target transmission delay; when the signal strength of a source network is poor, a target network can be switched to so as to solve the problem of poor call quality. By comparing the transmission delays of the source network and the target network, the problem of call quality worsening after switching due to the high transmission delay of the target network can be avoided.