Agenda Item 9.1.5 ITU WRC-15 Presented by Koos Pretorius, SACAA Regional Frequency Spectrum Workshop for ITU WRC-15 Lima, Peru March 11-12, 2013.

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Presentation transcript:

Agenda Item ITU WRC-15 Presented by Koos Pretorius, SACAA Regional Frequency Spectrum Workshop for ITU WRC-15 Lima, Peru March 11-12, 2013

WRC-15 Agenda Item (9.1.5); Consideration of technical and regulatory actions in order to support existing and future operation of fixed ‑ satellite service earth stations within the band – MHz, as an aid to the safe operation of aircraft and reliable distribution of meteorological information in some countries in Region 1 (Resolution 154 (WRC-12))

Historic Background Aviation safety across the African Continent has been compromised by a lack of reliable fixed aeronautical telecommunications infrastructure used for providing Air Traffic Services/Direct Speech (“ATS/DS”) and Aeronautical Fixed Telecommunications Network (“AFTN”) voice and data services The South African Air Navigation Service Provider, Air Traffic and Navigation Services (ATNS) in collaboration with the International Air Travel Association (IATA) introduced the Southern African Development Community (SADC) Very Small Aperture Terminal (VSAT) network in the Fixed Satellite Service (FSS) C-Band in 1998 called SADC/1

When the SADC/1 VSAT network reached its “end- of-life” it became imperative to replace the network due to maintenance costs, and in particular the repair of VSAT equipment that became unaffordable as the basic VSAT technology platform was not supported anymore. As part of the on going support of aeronautical and navigational services in the SADC region, ATNS and the individual States therefore collectively decided to replace the SADC VSAT network with a new baseline VSAT technology platform that will provide and support legacy as well as new communications facilities and protocols. (The SADC/2 network)

As a result of the leading role ATNS played in resolving the aeronautical fixed communication deficiencies in the SADC Region, ICAO and the North East African States accepted an offer from ATNS and IATA to implement a similar fixed aeronautical VSAT network in the North East AFI (Africa-Indian Ocean) Region, to address the ATS/DS and AFTN deficiencies within this region. (The NAFISAT network)

The SADC/2 and NAFISAT VSAT networks are supported by ATNS in terms of the bilateral agreements reached with all the States in the SADC and North East African regions. Not all the individual Sates have the capability to maintain their in-country VSAT terminals, and as a result of the high availability and maintainability requirements, 2 (two) Maintenance Management Centres were established to co-ordinate fault and failure management. These centres are also responsible for physical maintenance site visits to those sites that do not at present have their own maintenance capability.

The two main centres are: Entebbe, serving mainly the States in the North East African Region and; Johannesburg, serving mainly the States in the SADC Region. These two centres also provide the master timing for the TDMA signals to the network. Additional Multi-Channel per Carrier (“MCPC”) point-to-point links are provided in the SADC and NAFISAT VSAT network for interconnection to the ASECNA (“Agency for the Safety of Aerial Navigation in Africa”) AFISNET (“Africa Indian Ocean Satellite Network”) VSAT network operated in West Africa.

These VSAT networks support all aeronautical communications services including the extension of VHF aeronautical mobile, navigation and surveillance. VSAT networks are also used for data links for the meteorological services in Africa Today, VSAT networks constitute a real infrastructure, spanning the entire African continent and beyond. The availability of the entire 3.4 to 4.2 GHz FSS band is crucial for the AFI Region to ensure the continued growth of traffic while maintaining the required level of safety in this region.

The Issue Agenda Item 1.4 at the World Radio Conference of 2007 (WRC-07), addressed the issue whether the band 3400 MHz to 4200 MHz (“C-band”) should be identified for the International Mobile Telecommunications (IMT) on a global basis with the longstanding primary allocation to the fixed satellite service (FSS) WRC-07 rejected the global identification for IMT in the C-band because of the recognised need to protect FSS communications from harmful interference evidenced in studies by the ITU

WRC-07, subject to certain restrictions, adopted new footnotes to Radio Regulations to allow the band 3400MHz to 3600MHz for use by the IMT, but only by countries listed in the foot notes (opt-in countries. The restrictions established additional protection for the C-band earth stations by the opt-in countries in each of the three ITU regions. 81 Counties in Region 1 opt-in and the band MHz was allocated and became effective in November 2010 on a co-primary basis for the mobile (including IMT ) with PDF limit restrictions and coordination requirements

In the 14 opt-in countries in Region 2, the 3400 MHz – 3500 MHz band was allocated by footnote to mobile services (which includes IMT) on a co- primary basis subject to coordination with affected administrations The 3500 MHz – 3600 MHz band has also been identified for IMT in opt-in countries in Region 3. *Since the effective date, interference interruptions have occurred throughout Africa, and in Australia, Bolivia, the Caribbean, China, Fiji, Hong Kong, Indonesia and Russia. *Source - Squire, Sanders & Dempsey L.L.P.

CONCLUSION Regulatory measures are needed to ensure an appropriate level of protection for the FSS C-band spectrum which is used to augment terrestrial communication networks through the use of VSAT technology. VSAT technology is used to facilitate safety of life CNS services within the aeronautical community. Long-term VSAT spectrum availability and protection from interference should be guaranteed across the entire African Continent and other parts of the world. The meeting is invited to support the following recommendation:.

Recommendation – Long-term very small aperture terminal spectrum availability and protection: a)that ICAO Member States should not support additional international mobile telecommunications spectrum allocation in the fixed satellite services C- band spectrum at the expense of the current or future aeronautical very small aperture terminal networks; and b) ICAO and ICAO Member States to pursue this matter in ITU-R and during the World Radio Conference (WRC-15, Agenda Items 1.1 and 9.1.5), to prevent any international mobile telecommunications spectrum allocation that compromises the availability of the aeronautical very small aperture terminal networks