Video Call Handover Using Satellite Fallback and Intelligent Converters
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Video calls over wireless communication networks experience poor Quality of Experience (QoE) due to network fluctuations, leading to choppy audio and video, and often downgrade to audio calls or drop off completely, especially in weak or no-network areas, with satellite communication being impractical due to high data transmission requirements.
Innovation Solution
Electronic devices transmit and receive satellite communication and converter capability information to seamlessly transition calls between non-satellite and satellite networks, using intelligent converters to manage network changes by sending limited video frames, time-tagged text messages, and metadata to maintain video call continuity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If video calling is performed over operator network in weak or poor network areas, then the call can be established, but the Quality of Experience deteriorates with choppy audio and video
Solution Approach 1:
The system dynamically adjusts media transmission based on real-time network conditions. The operator network continuously monitors signal strength and automatically disables the video channel when network quality deteriorates, switching to audio-only transmission to maintain call connectivity while adapting to varying network conditions.
Solution Approach 2:
The system changes transmission parameters according to network conditions. When network strength is sufficient, both audio and video are transmitted at high quality. When network conditions worsen, the system reduces video bitrate, disables video transmission entirely, or switches to lower-resolution video to maintain audio quality and call stability.
2Reliability
If video calling is performed in weak network areas, then the call can continue, but the immersive nature of the call is lost due to downgrade to audio call
Solution Approach 1:
The system prepares alternative transmission modes in advance. Before network conditions fully deteriorate, the system pre-configures fallback options such as reducing video resolution, switching to intermittent video frames, or preparing to switch to satellite communication mode, ensuring seamless transition without complete loss of video capability.
Solution Approach 2:
The communication system is designed to perform multiple functions across different network conditions. It can operate in full video call mode under good conditions, audio-only mode under poor conditions, and satellite communication mode when operator network is unavailable, making the system universally adaptable to any network environment while maintaining call continuity.
3Reliability
If video calling is performed when moving to no network area, then the call may be maintained briefly, but the call is dropped off without continuity provision
Solution Approach 1:
The system introduces satellite communication as an intermediary when operator network becomes unavailable. The satellite communication network acts as a mediator to maintain call connectivity during transitions between operator network coverage areas, preventing call drops and ensuring continuous communication without interruption.
Solution Approach 2:
The system establishes satellite communication capability in advance as a backup mechanism. Before operator network coverage is completely lost, the system detects deteriorating signal conditions and proactively switches to or prepares satellite communication mode, cushioning against the abrupt call drop that would otherwise occur when moving into no-coverage areas.
4Manufacturing precision
If high data transmission is used for video calling, then video call quality is improved, but it becomes impossible to execute during satellite communication due to cost and latency
Solution Approach 1:
The system applies different quality levels to different communication modes based on their characteristics. High-definition continuous video transmission is used when operating on operator networks with sufficient bandwidth. When switching to satellite communication, the system automatically reduces video quality, transmits at lower resolution, or sends intermittent frames to adapt to satellite communication's cost and latency constraints while maintaining functional video capability.
Data Source
AI summary
A method for providing, by an electronic device, seamless connectivity in a call is provided. The method comprises transmitting satellite communication capability information and converter capability information to one or more other electronic devices; receiving the satellite communication capability information and the converter capability information from the one or more other electronic devices; establishing a call with the one or more other electronic devices using a non-satellite communication network; and transferring the call from the non-satellite communication network to a satellite communication network using the satellite communication capability information and the converter capability information of the electronic device and of the one or more other electronic devices, based on determining that state of the non-satellite communication network is not sufficient for continuing the call.