Satellite Bandwidth Coordination for Moving Vessels
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Solution Overview
Problem
Existing communication systems for multiple moving communication platforms (MCPs) face inefficiencies in managing satellite bandwidth and establishing logical communication with shore-side antennas, particularly due to dynamic factors such as spatial diversity, available bandwidth, and the presence of other MCPs at ports.
Innovation Solution
The system employs a Central Bandwidth Manager and Local Service Selectors to predictively allocate bandwidth by prioritizing spatial diversity, available bandwidth, and connectivity options, forming bonded communication channels and dynamically reconfiguring satellite resources based on MCPs' trajectories and connectivity circumstances.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If satellite bandwidth is allocated to multiple moving communication platforms, then communication coverage is improved, but bandwidth management complexity increases
Solution Approach 1:
The system segments bandwidth management by creating separate CIR (Committed Information Rate) and MIR (Maximum Information Rate) pools for different vessel groups. Each pool is independently managed with dedicated controllers, allowing parallel management of multiple vessel groups without interference. This segmentation reduces overall management complexity while maintaining comprehensive coverage.
Solution Approach 2:
The system performs preliminary bandwidth allocation by establishing CIR guarantees before vessels need communication services. Bandwidth is pre-configured in pools based on predicted vessel trajectories and port arrival times, allowing vessels to connect immediately upon entering coverage areas without complex real-time negotiation.
2Reliability
If bandwidth is guaranteed to individual vessels, then communication reliability is improved, but overall bandwidth utilization efficiency deteriorates
Solution Approach 1:
The system merges individual vessel bandwidth requirements into group-level CIR and MIR pools. Multiple vessels share common bandwidth pools rather than having dedicated allocations, improving utilization efficiency. The pooling mechanism allows dynamic sharing while maintaining guaranteed minimum rates for each vessel through the CIR pool structure.
Solution Approach 2:
The system dynamically changes bandwidth allocation parameters by adjusting CIR and MIR values in response to vessel trajectories, port arrivals, and communication demands. Bandwidth pools are reconfigured in real-time to match actual usage patterns, maintaining reliability guarantees while optimizing utilization efficiency through parameter adaptation.
3Productivity
If satellite resources are dynamically reconfigured based on vessel trajectories, then communication efficiency is improved, but system complexity increases
Solution Approach 1:
The system performs preliminary configuration of bandwidth pools based on predicted vessel trajectories and scheduled port arrivals. Before vessels enter communication range, appropriate CIR and MIR pools are pre-established and configured, reducing the complexity of real-time resource management while maintaining high communication efficiency.
Solution Approach 2:
Vessels self-register with the bandwidth management system by providing trajectory and port destination information. The system automatically assigns vessels to appropriate bandwidth pools based on their characteristics and predicted behavior, eliminating complex manual configuration and reducing system operational complexity.
4Productivity
If multiple vessel groups share common satellite resources, then resource utilization is improved, but interference between groups increases
Solution Approach 1:
The system segments shared satellite resources into separate CIR and MIR pools for different vessel groups. Each pool operates independently with dedicated management, allowing high resource utilization through sharing while minimizing inter-group interference through structural separation. Vessels in different pools experience isolated bandwidth management without mutual interference.
Data Source
AI summary
A process of forming a wireless communication channel among moveable vessels (MCPs) involves establishing a directed wireless communication chain between the MCP to a fixed antenna, and at least one MCP of the MCPs utilizing two antennas to form the chain.