Satellite Link Adaptation for External Interference Mitigation

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Solution Overview

Problem

Satellite communication systems face significant interference issues, leading to reduced performance and revenue losses, as they typically react to interference only after link quality drops, rather than proactively adapting to external non-weather-related interference sources.

Innovation Solution

The system dynamically adapts configurable link parameters and allocates resources based on interference information from external sources, such as other satellite systems, ground-based communication systems, and radar systems, to mitigate adverse effects of interference proactively.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If satellite communication systems react to interference only after link quality drops, then system complexity remains low, but service reliability deteriorates

Engineering Contradiction:
Improveservice reliabilityVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system performs preliminary actions by proactively obtaining interference information from external sources before interference actually affects link quality. The controller uses this advance information to adjust link parameters and allocate resources in anticipation of interference, preventing service disruptions rather than reacting after they occur.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system implements feedback mechanisms by continuously monitoring interference information from external sources and using this feedback to dynamically adjust link parameters and resource allocation. This closed-loop control enables the system to maintain service reliability through continuous adaptation based on interference conditions.

Inventive Principle:
Principle #23Feedback

2Reliability

If satellite communication systems proactively obtain and respond to external interference information, then service quality is maintained, but system complexity increases

Engineering Contradiction:
Improveservice qualityVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system introduces an intermediary controller that acts as a mediator between external interference information sources and the satellite communication system. This controller obtains interference information from external sources, processes it, and coordinates appropriate responses by adjusting link parameters and resource allocation, thereby managing service quality without requiring complex modifications throughout the entire system.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Object-affected harmful factors

If satellite communication systems adapt link parameters dynamically based on external interference, then interference mitigation effectiveness improves, but operational complexity increases

Engineering Contradiction:
Improveinterference mitigation effectivenessVSAvoidoperational complexity
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The system applies preliminary action by proactively adjusting link parameters based on advance interference information before interference degrades service quality. This allows the system to mitigate interference effects without requiring complex real-time adjustments during active interference events.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system employs parameter changes by dynamically adjusting link parameters such as power, bandwidth, and modulation schemes based on external interference information. These parameter adjustments enable effective interference mitigation while maintaining manageable operational complexity through systematic control mechanisms.

Inventive Principle:
Principle #35Parameter changes

4Productivity

If satellite communication systems use reactive interference response, then system simplicity is maintained, but resource utilization efficiency deteriorates

Engineering Contradiction:
Improveresource utilization efficiencyVSAvoidsystem simplicity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The system performs preliminary resource allocation adjustments based on advance interference information, enabling efficient resource utilization before interference occurs. This proactive approach allows the system to optimize resource usage without requiring complex reactive adjustments after interference degrades performance.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system uses feedback from external interference information sources to continuously optimize resource allocation. This feedback-driven resource management improves utilization efficiency by proactively adapting resources to anticipated interference conditions rather than reacting after resource degradation occurs.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS9628168B2Dynamic link adaption and/or dynamic allocation of communication resources of a communication system based on external interference information received from external interference information sources
Publication Date: 2017.04.18 LANTERIS SPACE LLC
  • US9628168B2 patent drawing
  • US9628168B2 patent drawing
  • US9628168B2 patent drawing

AI summary

Interference information is obtained from one or more interference information sources external to a particular communication system, wherein the interference information is indicative of non-weather related interference that can adversely affect efficacy of the particular communication system. Configurable link parameters of the particular communication system are dynamically adapted and/or resources of the particular communication system are dynamically allocated based on the interference information obtained from the interference information source(s) that is/are external to the particular communication system. Such embodiments can advantageously be performed proactively to prevent or mitigate adverse effects of non-weather related interference on the efficacy of the particular communication system.