Dynamic Handover Thresholds for 5G Video Calls
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Solution Overview
Problem
Existing electronic devices face challenges in maintaining seamless video call services during handovers between different network types, such as LTE, WiFi, and 5G networks, particularly in ensuring high-quality video calls and efficient signal transitions.
Innovation Solution
An electronic device equipped with 5G, 4G, and WiFi communication circuitry, which establishes video calls and sets a reference value for handovers based on signal strength and resolution thresholds to optimize handover operations, ensuring continuous and high-quality video call services by prioritizing network transitions based on signal intensity and priority connection modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the electronic device uses a default handover reference value, then the handover process is simple, but high-resolution video calls cannot maintain quality during network transitions
Solution Approach 1:
The patent dynamically changes the handover reference value parameter based on video call resolution. When high-resolution video calling is detected, the reference value is adjusted to be more favorable for 5G network handover, ensuring quality maintenance. This parameter adaptation resolves the contradiction by making the handover process resolution-aware without requiring complete system redesign.
Solution Approach 2:
The handover reference value transitions from a static default to a dynamic value that adapts to real-time video call conditions. The system continuously monitors video resolution and adjusts the handover threshold accordingly, enabling the device to optimize network transitions for high-quality video while maintaining simplicity for standard calls.
2Reliability
If the electronic device frequently measures signal strength to optimize handover timing, then video call continuity is improved, but power consumption increases
Solution Approach 1:
The patent applies partial measurement action by only performing frequent signal strength measurements when high-resolution video calls are active. During standard video or audio calls, the device uses normal measurement intervals. This selective approach ensures call continuity during critical high-resolution operations while avoiding excessive power consumption during routine operations.
Solution Approach 2:
The system performs preliminary identification of video call resolution during the call establishment phase, allowing it to pre-adjust measurement frequency before the actual video transmission begins. This enables the device to prepare optimized handover monitoring only when necessary, reducing overall power consumption while ensuring readiness for high-quality video continuity.
3Productivity
If the electronic device sets a lower reference value for 5G handover, then handover to 5G network is facilitated, but handover stability may be compromised
Solution Approach 1:
The reference value parameter is dynamically adjusted based on video call resolution requirements. For high-resolution calls, a lower reference value is set to accelerate 5G handover and maintain quality. For standard calls, the default reference value is maintained to ensure stability. This conditional parameter change resolves the contradiction by making handover behavior context-dependent.
Solution Approach 2:
The system applies different handover reference values for different video call quality requirements. High-resolution video calls receive optimized handover parameters (lower threshold) while standard calls use conservative parameters. This localized quality adjustment ensures fast handover only where absolutely necessary, maintaining overall system stability.
Data Source
AI summary
An electronic device and method are disclosed. The device includes: first wireless communication circuitry for a 5G network, second wireless communication circuitry for a 4G network or a WiFi network, at least one processor. The processor implements the method, including: establishing a video call with an external electronic device on the 4G network or the WiFi network, identify a resolution of the video call, setting a reference value for executing a first handover to the 5G network to be less than a default value, maintain the reference value, when the identified resolution is less than the predetermined threshold resolution, and perform the first handover from the 4G network or the WiFi network to the 5G network, when a RSSI intensity of a signal from the 5G network.