Flexible Intra-Satellite Signal Pathways for Dynamic Resource Allocation
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Solution Overview
Problem
Satellite communications systems face inefficiencies due to fixed resource allocation and signal pathways, which hinder the optimal utilization of spectrum and resources, especially with increasing demand for higher throughput and flexibility in the face of gateway outages and changing conditions.
Innovation Solution
Implementing a flexible pathway selection subsystem within a satellite that dynamically reconfigures signal pathways between uplink and downlink antenna ports, enabling simulcast and monocast modes to efficiently allocate resources and adapt to changing demands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If fixed signal pathways are used in the satellite, then the device complexity is reduced, but the adaptability and resource utilization efficiency deteriorate
Solution Approach 1:
The patent implements dynamically reconfigurable signal pathways within the satellite using switchable routing mechanisms. The satellite can change signal pathways between ground terminals and beams in real-time based on traffic demands, gateway status, and service requirements, transforming the static pathway configuration into a dynamic system that adapts to changing conditions without increasing overall device complexity.
Solution Approach 2:
The patent segments the signal pathway into multiple configurable routes by introducing pathway selectors and routing controllers that can independently direct signals through different beams and gateways. This segmentation allows the system to divide traffic into multiple pathways, enabling flexible resource allocation and alternative routing when certain gateways or beams are unavailable.
2Device complexity
If fixed resource allocation across beams is used, then the device complexity is reduced, but the productivity and throughput efficiency deteriorate
Solution Approach 1:
The patent implements dynamic resource allocation that adjusts beam assignments, bandwidth distribution, and power allocation based on real-time traffic demands and service priorities. This allows the satellite to optimize throughput by concentrating resources on high-demand beams while maintaining operational simplicity through automated control algorithms.
Solution Approach 2:
The patent makes satellite resources multi-functional by enabling beams and gateways to serve multiple purposes and multiple ground terminals dynamically. A single beam can serve different terminals at different times, and resources can be reallocated between commercial and governmental services based on needs, increasing overall productivity without requiring dedicated resources for each function.
3Device complexity
If fixed association between gateways and user beams is used, then the device complexity is reduced, but the reliability and robustness deteriorate
Solution Approach 1:
The patent implements dynamic gateway-beam associations that can be reconfigured in real-time based on gateway availability and service requirements. When a gateway experiences an outage or degradation, the system automatically redirects traffic through alternative gateways and adjusts beam associations accordingly, maintaining service continuity without requiring complex manual reconfiguration.
Solution Approach 2:
The patent establishes preliminary backup pathways and alternative gateway associations that are pre-configured but not actively used until needed. These redundant pathways remain ready to be activated immediately when primary gateways fail, ensuring rapid response to outages and maintaining reliability without the complexity of continuously managing multiple active associations.
4Device complexity
If fixed spectrum allocation is used, then the device complexity is reduced, but the adaptability to changing demand conditions deteriorates
Solution Approach 1:
The patent implements dynamic spectrum allocation that adjusts bandwidth distribution across beams and services based on real-time demand conditions. The system can allocate more spectrum capacity to high-demand commercial services during peak periods while ensuring minimum allocations for governmental services, optimizing spectrum utilization without requiring complex manual intervention.
Solution Approach 2:
The patent changes spectrum parameters such as bandwidth allocation, frequency assignment, and power spectral density dynamically based on traffic conditions and service priorities. This allows the system to adapt spectrum resources to changing demands by adjusting these parameters in real-time while maintaining manageable system complexity through automated control.
Data Source
AI summary
Systems and methods are described for enabling flexible signal pathways within a satellite of a satellite communications system. For example, a pathway selection subsystem in a bent-pipe satellite enables a flexible arrangement of non-processed signal pathways that couple uplink antenna ports with downlink antenna ports via uplink and downlink pathway selectors. The pathway selectors can be dynamically reconfigured (e.g., on orbit), so that the configuration of the pathway selectors at one time can form one set of signal pathways between respective uplink and downlink antenna ports, and the configuration at another time can form a different set of signal pathways between respective uplink and downlink antenna ports. The pathway selection subsystem can have a simulcast mode which, when active, couples each of at least one of the uplink antenna ports with multiple of the user downlink antenna ports to form one or more simulcast signal pathways.