Approaches to Satellite Compatibility 07.-08.05.2025

Training Focus
The increase in new Low Earth Orbit satellite constellations has resulted in a surge of compatibility studies being carried out to understand how Non-Geosynchronous Orbit (NGSO) and Geosynchronous Orbit satellites (GSO) can coexist. The issue has arisen from the demand in new high speed broadband services but also the cost of producing and launching satellites into orbit reducing greatly in recent years. 

There are many complexities in solving the compatibility between NGSO and GSO systems due to the muti-dimensional and highly dynamic nature of both systems. We will focus on the main technical parameters and calculations that are used to determine the unacceptable levels of interference. The course will look across the different services including MSS, FSS (BSS) but also protection of EESS in a range of frequency bands. 

This course will also touch upon the two approaches to Direct to Device services. This is the use of Mobile Satellite Service spectrum but also Mobile Service spectrum bands. We will cover the implications and challenges of adopting each approach and how regulations will need to evolve to support these approaches. 

Course Objectives
After completing the course, participants will be aware of the technical complexities of conducting compatibility studies that take place within the ITU. It will provide participants with the knowledge of the main technical parameters and calculations needed to determine interference levels. Participants will have an understanding how NGSO and GSO will be able to coexist. 

Intended for 
people working at regulators, satellite operators and vendors with some technical knowledge of satellite technologies and radio regulations and some knowledge of the ITU-R processes. The course is also suitable for non-technical people within government departments and ministries who wish to understand all the relevant complexities of compatibility studies and processes for updating the regulations.

Contents

• Introduction to satellite technologies and deployments including definition of GSO and
• NGSO satellites 
  
• Technical parameters used for compatibility studies 
  
• Analysis of interference calculations for compatibility 
  
• Overview of ITU working party study practices and example compatibility exercise Basic
• interference and compatibility calculations
  
• Overview of D2D spectrum approaches 

Duration
2 days