Mobile Terminal Route Selection Mitigating Satellite Communication Loss
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Solution Overview
Problem
Satellite communication systems face significant interference issues, leading to reduced service quality and increased costs due to factors like user error, cross-polarization leakage, adjacent satellites, and terrestrial interference, which are typically addressed reactively rather than proactively, resulting in potential communication losses for mobile terminals navigating through affected areas.
Innovation Solution
The system dynamically adapts configurable link parameters and allocates resources based on interference information from external sources, anticipating and mitigating non-weather-related interference by obtaining and utilizing interference information from various external sources, such as other satellite systems, ground-based communication systems, and radar systems, to prevent adverse effects on satellite communication efficacy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If satellite communication systems use reactive interference mitigation (waiting for link drop or quality report), then system complexity is reduced, but communication reliability deteriorates due to potential communication capability loss during navigation
Solution Approach 1:
The system performs preliminary actions by proactively obtaining interference information from external sources before actual communication degradation occurs. The mobile terminal queries interference information databases and receives advance warnings about interference zones, allowing the terminal to take preventive measures such as route avoidance or communication mode changes before link quality deteriorates, thereby improving reliability without requiring complex real-time reactive systems.
2Productivity
If mobile terminals follow shortest route navigation, then navigation efficiency is improved, but communication reliability deteriorates due to passing through interference zones
Solution Approach 1:
The system dynamically adjusts the navigation route based on real-time interference information. The mobile terminal receives interference zone warnings and dynamically modifies its path from the shortest route to an alternative route that avoids interference zones. This dynamic route adjustment allows the terminal to maintain both navigation efficiency and communication reliability by adapting to changing interference conditions without being locked into a fixed shortest path.
Solution Approach 2:
The system changes the route parameters (path geometry, distance, direction) based on interference information. When interference zones are detected, the terminal recalculates route parameters to select alternative paths that avoid these zones. This parameter change approach allows the terminal to optimize both navigation performance and communication reliability by adjusting route characteristics in response to interference conditions.
3Object-affected harmful factors
If satellite communication systems operate in assigned RF bands, then frequency interference is minimized, but system adaptability deteriorates when facing unexpected interference from other systems
Solution Approach 1:
The system implements feedback mechanisms where mobile terminals continuously monitor and report interference conditions, and network nodes receive and process this information to adjust resource allocation and routing decisions. The feedback loop includes terminals querying interference databases, receiving interference warnings, and providing status reports back to the network. This feedback mechanism enables the system to adapt to unexpected interference from other systems while maintaining assigned frequency band discipline, improving both frequency protection and adaptability.
Data Source
AI summary
Present location information about a present location of a mobile terminal is obtained, as is destination information about a target destination for the mobile terminal, wherein the target destination can be a waypoint destination or a final destination for the mobile terminal. Also obtained is wireless communication coverage information about wireless communication coverage associated with one or more geographic regions between the present location of the mobile terminal and the target destination for the mobile terminal. In dependence on the wireless communication coverage information, a navigational route is determined for the mobile terminal that mitigates a probability that the mobile terminal will lose a specific type of communication capability while travelling between the present location of the mobile terminal and the target destination for the mobile terminal.