Packet-Beacon Satellite Relay Communication for Dynamic Path Selection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In satellite communication systems using non-geostationary orbit satellites, the constantly changing network configuration makes it difficult to determine an appropriate path for data transmission between ground stations due to the high speed movement of satellites, requiring up-to-date information for path determination.
Innovation Solution
A communication device and system that utilizes a control unit to determine radio resource allocation based on data burst arrival time, period, and protect window, employing packet and beacon communications between satellite stations to facilitate data transfer without needing to manage the network configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If non-geostationary orbit satellites are used for communication, then communication coverage and flexibility are improved, but network configuration changes constantly making path determination difficult
Solution Approach 1:
Each satellite station autonomously determines communication paths by evaluating real-time link quality metrics without requiring centralized network configuration management. The system distributes the path determination function to individual nodes, allowing them to independently select optimal relay satellites based on current conditions.
Solution Approach 2:
The communication path is dynamically adjusted based on real-time link quality assessments. Satellite stations continuously evaluate signal strength, interference levels, and orbital positions to adaptively select the best relay path, rather than relying on static pre-configured routes.
2Reliability
If real-time information is maintained for path determination, then communication reliability is improved, but information update overhead increases
Solution Approach 1:
Satellite stations perform preliminary link quality assessments by evaluating beacon signals and propagation conditions before initiating data transmission. This advance evaluation allows paths to be pre-selected based on current conditions, avoiding the need for continuous real-time updates during active communication.
Solution Approach 2:
Link quality assessments are performed periodically using beacon signals rather than continuously. This periodic evaluation maintains sufficient path determination accuracy while significantly reducing the overhead associated with constant information updates.
3Productivity
If complex path search algorithms are used, then path optimization is improved, but processing time and complexity increase
Solution Approach 1:
The path determination process extracts and evaluates only the most critical link quality metrics (signal strength, interference, orbital position) rather than analyzing all possible path parameters. This selective approach simplifies the decision-making process while maintaining effective path selection.
Solution Approach 2:
The system performs sufficient path evaluation to achieve reliable communication without exhaustively analyzing all possible relay paths. By evaluating a limited set of candidate paths based on key metrics, the system achieves practical optimization without the computational burden of complete path search.
Data Source
AI summary
A communication device (40) of the present disclosure includes a first communication unit (42), a second communication unit (45), and a control unit (46). The first communication unit (42) performs first communication using a packet with a satellite station (40N). The second communication unit (45) performs second communication using a beacon with the satellite station (40N). Via the first communication unit (42), the control unit (46) transmits the packet to the satellite station (40N) with which the second communication using the beacon is performed via the second communication unit (45).