Dynamic Satellite Beam Tracking for Mobile PTT Connectivity
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Satellite-based Push-To-Talk (PTT) communication systems face inefficiencies in managing communication channels and coverage areas for mobile devices, particularly at high speeds, leading to resource wastage and inconsistent connectivity.
Innovation Solution
The system dynamically adjusts satellite coverage areas by tracking and predicting the position of communication devices, establishing and switching channels within beams that follow the device's path, ensuring continuous connectivity while optimizing resource usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If satellite coverage areas are expanded to ensure continuous connectivity for mobile devices at high speeds, then connectivity reliability is improved, but resource wastage increases
Solution Approach 1:
The patent implements dynamic beam tracking that continuously adjusts satellite coverage areas to follow mobile devices in motion. The system determines device positions, calculates optimal beam directions, and dynamically reconfigures satellite beams to maintain tight coverage over moving devices, ensuring connectivity reliability while minimizing resource wastage by concentrating energy only where needed.
Solution Approach 2:
The patent applies local quality by creating concentrated, high-density communication beams that precisely target mobile devices rather than using broad, diffuse coverage areas. The system establishes dedicated channels within focused beams that track device positions, providing intensive local coverage only in the immediate vicinity of moving devices while leaving other areas with minimal or no coverage.
2Reliability
If communication channels are established for large coverage areas, then device connectivity is maintained, but network efficiency decreases
Solution Approach 1:
The patent segments the satellite coverage area into multiple smaller, focused beams rather than using a single large coverage area. Each beam is independently configured to track specific mobile devices or device groups, allowing the system to maintain connectivity for multiple devices simultaneously while optimizing resource allocation for each segment, thereby improving overall network efficiency.
Solution Approach 2:
The system dynamically creates and moves communication channels within focused beams to follow mobile devices. Rather than establishing static channels for large fixed areas, the channels are dynamically positioned and repositioned based on real-time device locations, maintaining connectivity while optimizing network resource utilization.
3Loss of energy
If satellite beams are kept narrow to reduce resource wastage, then resource efficiency is improved, but coverage area for mobile devices is reduced
Solution Approach 1:
The patent resolves this contradiction by making the narrow beams dynamic rather than static. The system continuously tracks mobile device positions and moves the narrow beams to follow devices in motion, maintaining tight, resource-efficient coverage that adapts to device locations. This dynamic tracking allows narrow beams to provide adequate coverage for moving devices without wasting resources on unused areas.
Solution Approach 2:
The system performs preliminary actions by predicting future device positions based on current motion data and proactively positioning beams before devices leave current coverage areas. This anticipatory beam positioning ensures continuous coverage while maintaining narrow, resource-efficient beam widths throughout the device's movement trajectory.
Data Source
AI summary
In one implementation, information indicating that a communication device is requesting to enter a dedicated transmission mode in a talkgroup may be received. In addition, information indicating a first position of the communication device may be received. A satellite constellation may be controlled to establish a first channel for communications for the talkgroup within a first beam that has a coverage area including the first position of the communication device. Further, a potential second position of the communication device may be determined. The satellite constellation may be controlled to establish a second channel for communications for the talkgroup within a second beam that has a coverage area including the potential second position of the communication device.