MIMO Satellite Terminal Cross-System Interconnection

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Solution Overview

Problem

Existing satellite communication terminals are limited to working within a single satellite communication system, failing to facilitate communication across multiple systems.

Innovation Solution

A Multi-Input and Multi-Output (MIMO) satellite service terminal is designed to be compatible with various satellite communication systems, featuring an antenna, radio frequency module, receive signal processing, scheduling, interface, and transmission signal processing modules to select the best satellite communication system based on link status and enable seamless communication across systems.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a satellite communication terminal is designed to work in a single satellite communication system, then the device complexity is reduced, but the adaptability to different satellite communication systems deteriorates

Engineering Contradiction:
Improvedevice complexityVSAvoidadaptability to different satellite communication systems
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The terminal device is designed with multi-functionality to support multiple satellite communication systems (Inmarsat, Thuraya, Beidou) simultaneously. The device includes multiple antenna elements and signal processing channels that can receive and process signals from different satellite systems, enabling a single terminal to perform communication functions across multiple systems without requiring separate dedicated terminals for each system.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If a terminal device is designed to support multiple satellite communication systems, then the adaptability improves, but the device complexity increases

Engineering Contradiction:
Improvecompatibility with multiple satellite communication systemsVSAvoiddevice complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent combines multiple satellite communication system interfaces and signal processing functions into a single integrated terminal device. The antenna system, radio frequency modules, and baseband processing units are merged into one device architecture, allowing simultaneous operation with multiple satellite systems while sharing common hardware resources and control logic, thereby reducing overall system complexity compared to using separate terminals for each system.

Inventive Principle:
Principle #5Merging (Combining)

3Reliability

If the terminal selects the best satellite communication system based on link status, then the communication reliability improves, but the scheduling complexity increases

Engineering Contradiction:
Improvecommunication reliabilityVSAvoidscheduling module complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The terminal incorporates a scheduling module that continuously monitors link status parameters (signal strength, noise level, bit error rate) from multiple satellite communication systems and uses this feedback information to dynamically select the optimal system for communication. The module adjusts system selection based on real-time channel conditions, ensuring reliable communication by automatically switching to the best available link while managing the complexity through systematic evaluation criteria.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS10461815B2Multi-input and multi-output satellite service terminal
Publication Date: 2019.10.29 PACIFIC TELECOM & NAVIGATION LTD
  • US10461815B2 patent drawing
  • US10461815B2 patent drawing
  • US10461815B2 patent drawing

AI summary

The disclosure discloses a MIMO satellite service terminal. By periodically reporting terminal status information to a gateway platform and obtaining satellite communication systems that can be connected by all the MIMO satellite service terminal from broadcast message through a scheduling module, all the MIMO satellite service terminals in the network can update in real time the type of the satellite communication system to which other terminals in the network connect, whereby the same satellite communication system can be selected for communication or the communication across satellite communication systems can be carried out based on the forwarding by the gateway platform. The disclosure can improve the flexibility of satellite communication and make the users of different satellite communication systems realize interconnection and intercommunication, improve the application convenience for the user in the network and improve the bandwidth utilization rate of the communication system as well.