1. Coordination of Satellite networks
M.Revathi
Sr. Deputy Wireless Adviser
WPC Wing

2. INTERNATIONAL TELECOMMUNICATION UNION
(ITU)
RADIOCOMMUNICATION BUREAU
SPACE SERVICES
SPACE SERVICE DEPARTMENTS
(SSD)

3. SPACE SERVICE DEPARTMENT (SSD)
Responsible for coordination & recording procedures for space systems and earth stations
Capture, processing & publication of data & carries out examination of frequency assignment notices submitted by Administration for inclusion in formal coordination procedures or recording in Master International Frequency Register (MIFR)
Also responsible for managing the procedures for space related assignments or allotment plans of ITU & for provision of assistance to Administrations on all the above issues
Structure of SSD:
Space Publication and Registration Division (SPR)
Space Systems Coordination Division (SSC)
Space Notification and Plans Division (SNP)

4. Master International Frequency Register (MIFR)
Satellite filings by administrations have
two basic objectives:
-Interference-free operation
international recognition
by recording frequency assignments and,
as appropriate, orbital positions used or intended to be used in the
Master International Frequency Register (MIFR)

5. Possible Interference Scenarios
GSO
SATELLITES
INTERFERENCE
Non-GSO
SATELLITES
RECEIVING
EARTH STATION
TRANSMITTING
EARTH STATION
TERRESTRIAL STATION

6. Two approaches for sharing orbit / spectrum resource:
Coordination Approach Efficiency ↔ First come, first served for actual requirements
Planning Approach Equitable access ↔ Plan for future use

7. Coordination Approach
COORDINATION means Obligatory NEGOTIATION between Administrations to arrive at ” interference-free” operation by following the processes and Procedures described in Radio Regulations

8. Mechanisms in Radio Regulations to control interference
Article 5
ALLOCATION
Frequency separation of stations of different
radio services
Article 21 & 22
POWER LIMITS
Power Flux Density - to protect Terrestrial from Space services
EIRP
Protect Space from Terrestrial services
REGULATORY PROTECTION
e.g. No Non-GSO to protect GSO (FSS and BSS)
EPFD
Protect GSO from Non-GSO

9. Radio Regulation Procedures for the `Coordination Approach’
Appendix 4 Specifies data elements
Appendix 5 Criteria for identification of administrations with which coordination is to be effected or agreement sought

10. Notification & Recording in the Master International
Coordination is central to the three stage process :
Submission of advance information
that is published by the BR
Advance Publication
of Information
(API)
Exam. by BR to establish
Findings, coordination
Requirements and to publish . Coordination is then carried out by the responsible administration.
Coordination
Notification & Recording
in the Master International
Frequency Register
(MIFR)
Examination of the Notification,
checking of Coordordination
Agreements & Recording
in MIFR

11. Coordination Examination comprises of two parts:
No (11.31)
Compliance with Table of Frequency Allocation
No. 9.36:
Identify any administration with which coordination may need to be effected

12. Regulations for use of frequencies and orbits by satellite networks
Two mechanisms to ensure the above principles
Plan Bands
FSS as per Appendix 30B (C & Ku Band)
BSS as per Appendix 30 (Ku Band)
Feeder links for BSS as per Appendix 30A
Non Plan Bands
As per Article 9 & 11 of RR
Advance Publication, Coordination and Notification Procedures
Geo-Stationary Satellite networks (in all services and frequency bands) and non Geo-Stationary satellite networks in certain frequency bands governed by 9.7 A procedure, which are subject to coordination procedure
Other non Geo-Stationary networks (all pertinent services and certain frequency bands) for which only advance publication procedure is required before notification

13. BRIFIC, Due Diligence, Cost Recovery
BRIFIC: Special Section published on CD-ROM for all ITU members (bi-weekly)
Opportunity to verify if the intended new satellite network (or changes to existing ones) would create unacceptable interference to your network
4 month time limit from date of publication to provide comments
Due Diligence:Before a notification for recording in the Master Register can be confirmed as brought into use, the relevant due diligence information must be received by BR
Cost Recovery: Cost recovery is to apply to satellite network filings received by the BR after 7 November 1998
Every Administration can notify one satellite network per annum for free entitlement
Cost depends on the complexity of the network

14. Thanks