Altitude-Based Network Switching for Aerial Radio Devices
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Solution Overview
Problem
Radio communication devices, especially those in aerial vehicles, face challenges in selecting the most suitable network between terrestrial and non-terrestrial networks based on altitude, as existing systems often rely solely on altitude zero determination for switching between satellite and cellular services, neglecting intermediate altitudes where communication quality varies.
Innovation Solution
A radio communication device equipped with a measurement unit to determine altitude and an altitude determination unit that selects between terrestrial and non-terrestrial networks based on a threshold, with the threshold set by a base station device, allowing for dynamic network switching between terrestrial and non-terrestrial networks based on altitude and priority settings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If switching between satellite and cellular systems is performed based solely on whether altitude is zero, then network switching can be implemented, but communication quality cannot be optimized for intermediate altitudes
Solution Approach 1:
The patent segments the altitude range into multiple zones (ground level, intermediate altitudes, high altitudes) and assigns different network types to each zone. This allows the system to select appropriate networks for specific altitude ranges, optimizing communication quality for intermediate altitudes while maintaining adaptability across all flight phases.
Solution Approach 2:
The patent implements dynamic network selection that adapts to changing altitude conditions. The system continuously monitors altitude and dynamically switches between terrestrial and non-terrestrial networks based on current flight phase, enabling optimal communication quality throughout the entire flight profile rather than using a static switching threshold.
2Reliability
If a fixed altitude threshold is used for network switching, then implementation is simple, but communication quality cannot be optimized for different flight phases
Solution Approach 1:
The patent changes the switching parameter from a single fixed altitude threshold to multiple altitude thresholds that define different flight phases. This allows the system to optimize communication quality for each phase (takeoff, intermediate flight, landing) while managing complexity through structured phase-based control rather than arbitrary complexity.
3Reliability
If terrestrial network is used at low altitudes, then communication quality improves, but network selection must be precise to avoid interference
Solution Approach 1:
The patent performs preliminary altitude assessment and network selection based on predefined altitude thresholds before actual communication occurs. By determining the appropriate network in advance based on measured altitude and flight phase, the system ensures accurate network selection and avoids interference issues during active communication.
Data Source
AI summary
A radio communication device including a measurement unit that measures a value specifying an altitude, and an altitude determination unit that determines whether to connect to a terrestrial network or a non-terrestrial network based on the value measured by the measurement unit.