Download - Aviation Frequency Spectrum and the ITU World Radiocommunication Conferences (WRC)

Aviation Frequency SpectrumAviation Frequency Spectrumand theand the

ITU World ITU World Radiocommunication Radiocommunication Conferences (WRC)Conferences (WRC)

Loftur JónassonICAO

Aeronautical Spectrum Workshop

Preparation for WRC-12

Dakar, Senegal, 6 – 7 Oct 2011

OverviewOverview

Aeronautical Spectrum Management

ITU in brief (Radio Regulations) ITU World Radio Conferences

(WRCs), General Overview WRC-07 Results Preparation for a WRC, General WRC-12 Position and PolicyWRC-12 Preparation

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Aviation’s top priority is safe operations. In order to achieve this, aircraft rely on secure airspace, airports and

Aeronautical Frequency Spectrum ManagementAeronautical Frequency Spectrum Management

Radio spectrum, the third requirement for aviation’s safe operations, is the least understood and the most difficult to protect as this limited invisible resource has to be shared with other users

Quotes by IATA & the Air Transport Action Group:

radio spectrum

Aircraft contain a number of systems for communications, radio-navigation, automatic position reports and datalink. Without access to Frequency Spectrum these systems wouldn’t work.

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Satellite Data Unit

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AudioControlPanel

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VHFAntenna

TCAS II Mode SDisplays

TCAS II Mode S

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Aeronautical Frequency Spectrum Management

Radio Band Frequency Main use

Very High Frequency (VHF) 30 – 300 MHz FM broadcast, maritime and land mobile comms, marker beacons, VOR, ILS, aeronautical comms

High Frequency (HF) 3 – 30 MHz SW broadcast, military, maritime com, aeronautical com

Low Frequency (LF) 30 – 300 kHz AM broadcast, NDB

Medium Frequency (HF) 300 – 3000 kHz AM broadcast, NDB


Ultra High Frequency (UHF) 300 – 3000 MHz TV broadcast, cell phone, wireless local area networks (WLAN/broadband), GNSS, satcom, DME, primary and secondary surveillance radar, ADS-B, future aeronautical comms

Super High Frequency (SHF) 3 – 30 GHz Fixed satellite links, WLAN/broadband, PSR, doppler radar, weather radar, radio altimeters, MLS, future aeronautical comms

Extra High Frequency (EHF) 30 – 300 GHz Microwave relays, intersatellite links, high definition radar, security screening

Overview of spectrum allocations to aeronautical services utilized by Civil Aviation




Scarce natural resource with finite capacity limits and constantly increasing demands

Congestion imposes the need for efficient frequency spectrum management

Spectrum management: combination of administrative and technical procedures

necessary to ensure interference free and efficient operation of radio services (e.g. Air/Ground Communications and Radionavigation)

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Maintenance of the International provisions for Spectrum Management, which are contained in the ITU Radio Regulations (RR)

This includes maintenance of the Table of Frequency Allocations

A consequence of this is that aviation frequency managers need to develop, and lobby for an aviation position on frequency spectrum use

The highest level of Spectrum Management takes place at the ITU World Radiocommunication Conferences (WRC), held every four years:

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Co-ordination of aviation position for ITU World Radiocommunication conferences

At the national level: National position is developed and co-ordinated by the National Frequency

Spectrum authority. Aviation is but one of many elements that lobby for attention

At the regional level: National telecommunications authorities co-ordinate their position through

regional organizations. Aviation representatives may not be allowed to speak up as the National Frequency Spectrum Authority has only “one official position”. ICAO is allowed to participate

At the international level: National telecommunications authorities (and Regional) co-ordinate their

position through the ITU-R Study Groups. Although aviation may be represented in the national delegations, they may not be allowed to speak up, as the national delegation has only “one official position”. States look to ICAO for guidance on aviation matters

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http://www.brandsoftheworld.com/download/brand/120593.html


A slide borrowed from Industry Canada shows a good example of the many “special interest” groups represented in any national position.

The ITU Radio Regulations update cycle

A very competitive environment

Neutral to Aviation

Those that do their homework and participate succeed, others lose.

Definition of Radio Frequency Management:

“Radio frequency management is done by experts who meld years of experience with a curious blend of regulation, electronics, politics and not a little bit of larceny. They justify requirements, horsetrade, coerce, bluff and gamble with an intuition that cannot be taught other than by long experience.”

Vice Admiral Jon L. Boyes

U.S. Navy


ITU in briefITU in brief

Based in Geneva, Switzerland

Founded on 17 May 1865

192 Member States, more than 700 Sector members and associates

865 staff / ~70 nationalities

UN Specialized agency, established to standardize and regulate international radio and telecommunications.

ITU in briefMajor role (examples)ITU in briefMajor role (examples)

International telecoms standardization Collaboration in international tariff setting Co-operation in telecoms development assistance Spectrum allocationSpectrum allocation Frequency registrationFrequency registration Co-ordination of national spectrum planningCo-ordination of national spectrum planning Distress and Safety provisionsDistress and Safety provisions Radio regulatory aspects of the aeronautical Radio regulatory aspects of the aeronautical

mobile service (chapter VIII of the RR)mobile service (chapter VIII of the RR) …

ITU in briefRadio RegulationsITU in briefRadio Regulations

Facilitate equitable access to and rational use of the radio frequency spectrum and the geostationary orbit

Ensure availability and protection from harmful interference of frequencies for distress and safety purposes

Assist in prevention and resolution of cases of harmful interference

Facilitate efficient and effective operation of radiocommunications services

Provide for, and regulate new applications of telecommunications technology

International treaty:

ITU in briefRadio RegulationsITU in briefRadio Regulations

A set of regulatory provisions addressing the major topics of:

Definitions for services and technical features related to spectrum and frequency planning

Frequency Allocations to services

Procedures for coordination and registration of frequencies

Provisions for distress and safety communications

Provisions for individual radio services (including Aeronautical Services)

Interference – reporting and clearance

Administrative provisions, including licensing

Together with:

Appendices (30) addressing planning, technical parameters and operational procedures

Resolutions and Recommendations

Contents of the Radio Regulations:

ITU WRCs General OverviewITU WRCs General Overview

WRCs update the International Radio Regulations

Held every 2 - 4 years Last was in 2007 Next in 2012

Main purposes: To revise the Radio Regulations (RR); and To address Radiocommunication issues of a worldwide character.

Radio Regulations: International treaty governing the use of the Radio Frequency Spectrum

Why participate at World Radiocommunication Conferences: To protect existing services To obtain access to spectrum for new services and enhance spectrum

access for existing services To facilitate market access for radio equipment manufacturers; and To provide regulatory certainty to operators.

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Participation: 2822 delegates Budget of $3.5 million US Dollars 4 weeks (5 ½ weeks counting RA-07 and CPM)

161 Administrations 5 regional telecommunication organizations 4 intergovernmental organizations 3 UN specialized agencies (ICAO, IMO, WMO) 4 other international agencies 30 recognized operating agencies 23 scientific/industrial organizations 22 regional /international organizations

Over 3100 proposals in 350 documents, 11800 pages translated, 2,380,000 downloads. Over 1100 meetings, 30 meetings/day. Marathon sessions (9am Wed – 5pm Thu with less than

3 hours break). Final Acts: ~500 pages

ITU WRCs WRC-07 in numbersITU WRCs WRC-07 in numbers

WRC-07 Main Thrust

International Mobile Telecommunications (IMT)

Additional spectrum identified for IMT

- Higher frequencies: to face growth in densely populated areas.- Lower frequencies to provide, at a reasonable cost, high speed mobile services everywhere, in particular in less densely populated areas.

450−470 MHz ((())) 6

98−862 MHz

R2 & R3 (9 countries)

))) 790−862 MHz

R1 & R3

))) 2.3−2.4 GHz3.4−3.6 GHz band (((

(no global allocation)

Protection of the GNSS (GPS/GLONASS) improved by downgrading the Fixed Service operating in 34 countries in the 1559 – 1610 MHz band.

By end of 2009, the remaining 9 countries in the Middle East and Africa will also downgrade their Fixed Service in this band.

Fixed Service to be terminated in this band by 2015.

WRC-07: Main results for Civil

Aviation (1)

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9 GHz bands used by the Aeronautical Radionavigation Service (ARNS) will now share their primary allocation with the Radiolocation Service, the Earth Exploration Satellite Service (active) and the Space Research Service (active)

However, as per the ICAO Position, ARNS has been provided regulatory protection over the new primary services sharing those bands.


Aviation (2)

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New allocations to the Aeronautical Mobile (route) Service (AM(R)S) in support of future requirements

The band 108 - 117.975 MHz was allocated to the AM(R)S with some limitations to the band below 112 MHz.

The band 960 - 1164 MHz was allocated to the AM(R)S

The band 5091 - 5150 MHz was allocated to the AM(R)S limited to surface applications at airports.

The bands 112 - 117.975 MHz and 960 - 1164 MHz cannot be used until sharing studies with existing systems have been completed. Regulatory provisions for these bands should be reviewed at the next WRC.

All the above bands share an allocation with the ARNS


Aviation (3)

NextGen&

SESAR

The band 5000 - 5030 MHz should be studied with respect to the possibility of assigning it to the aeronautical mobile (R) service limited to surface applications at airports and that these studies should be reviewed at the next WRC.


Aviation (4)

New ITU recommendation in support of infrastructure development in underdeveloped regions:

Aimed at facilitating the licensing of VSAT (very small aperture terminal) satellite ground stations in support of aviation communications infrastructure

Recognizes that VSAT networks operating in the fixed satellite service can be used to carry aeronautical safety related traffic


Aviation (5)

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BanguiDoual

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Libreville

Brazzaville

Tana

Mahga

Toamasina

Station B (11 M)

Station F2 (7m30)

Station F1 (3m60)

Tamba

Abidjan

Accra

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Antsirana

Toliara

Ouaga AmTima

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Bouar

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Nouadhibou

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Casablanca

Las Palmas

Conakry

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JOHANESBURG

Moroni

Garoua

Dirkou

AgadezGao

Zinder

Faya

Tessalit

Bir-Mogreïn

Sal

RECIFE

Dzaoudzi

St Denis

Alger

Toulouse

Nairobi

Luanda

Planned links

Aeronautical Communication VSAT Links

Kinshasa

Dar es Salaam

Khartoum

Le Caire

Tripoli

Tunis

Maurice

Lisbonne

Sante Maria

Bria

Maiduguri

BeiraLinks via CAFSAT network

Links via SADC network

Links via AFISNET network

Inclusion of an agenda item for WRC-11 to ensure long-term spectrum availability for the Aeronautical Mobile Satellite (route) Service

At WRC-97 the exclusive AMS(R)S allocations in the L-band were replaced by a generic allocation to the Mobile Satellite Service (MSS). Priority and pre-emption was afforded to AMS(R)S through a footnote. Studies have identified that these methods are insufficient to ensure long-term spectrum availability to aviation

This agenda item affords aviation the opportunity to conduct technical, operational and regulatory studies of existing and future spectrum requirements for aviation


Aviation (6)

Early development and dissemination of the draft ICAO Position

Active participation by ICAO and national aviation experts in the preparatory work of the ITU, including the relevant meetings of the ITU-R

Increased participation by ICAO experts (from HQ and regional offices) in meetings of the regional telecommunication organizations

Increased awareness in the Regions through ACP WG-F meetings and ICAO Radio Frequency Seminars in the Regions

Active Participation of the ICAO Delegation at WRC-07 allowed ICAO to counter and refute proposals which would have adversely impacted aeronautical spectrum


Aviation (7)In general, conference results conformed to the ICAO Position. Major factors contributing to this include:

Preparation for a WRC ICAO Strategy (1)


Basis for the ICAO position Includes ICAO frequency spectrum PolicyProscribes the development of the ICAO position

Guidance for the promotion of the ICAO position Discusses new trends, including the economic value of spectrum Incorporates Assembly Resolution A36-25 (attribution of necessary

resources to the WRC process, by States and ICAO)

Strategy for establishing and promoting the ICAO position for future ITU World Radiocommunication Conferences. Developed by ANC and adopted by Council in 2001 (Doc 9718, Att E):

Basis for the ICAO Position

Current and future aviation requirements for radio frequency spectrum

Long term implementation strategy contained in the Global Air Navigation Plan (Doc 9750)

ICAO policy on radio frequency spectrum requirements, as approved by Council

Framework for development and support of ICAO Position is contained in Assembly Resolution A36-25





Guidance for the development of the ICAO Position (1)

Established as early as possible after the agenda for that WRC is established

Position presents ICAO views on all agenda items of interest to international civil aviation on the agenda of the WRC, with particular regard to the impact on safety, regularity and efficiency of flight

Focal point on all aspects related to the development of the ICAO Position is ACP Working Group F

Proper co-ordination with regional offices



Guidance for the development of the ICAO position (2)

Position reviewed by ANC, sent to States and relevant International Organizations for comments, and a consolidated ICAO Position is submitted to ANC and Council for approval

Position is sent to States for use in coordination process when developing national positions

Following development of the Position, consequential amendments to policy statements are developed for approval by the Council

Subsequent developments arising from ICAO and ITU activities in preparation for the WRC are considered by the Council with a view to update the Position as necessary



Guidance for the promotion of the ICAO position

Assembly Resolution A36-25 shall be fully implemented so as to secure support from States to the ICAO Position and ensure that the resources necessary to support increased participation by ICAO to international and regional spectrum management activities are made available.

ICAO contributes to the WRC preparatory activities conducted by ITU and Regional Telecommunications Organizations, by submitting additional technical papers supporting the ICAO Position

ICAO maintains close co-ordination and co-operation with other aviation organizations participating in the Conference, such as IATA

Regional ICAO co-ordination meetings to present and discuss the ICAO Position should be organized as required. These meetings to be held in conjunction with meetings of ACP WG-F



New trends in spectrum management may affect the availability of adequate and protected spectrum for aviation

Increased role of the private sector in the work of the ITU

Increased economic value of spectrum for certain applications

Increased availability of radio devices that do not require licensing

Increased pressure for sharing aeronautical spectrum with non-aeronautical services

Preparation for a WRCPreparation for a WRC

✓Urges Contracting States and International Organizations to support firmly the ICAO position at WRCs and in regional and other international activities conducted in preparation for WRCs by the following means:

a)undertaking to provide for aviation interests to be fully integrated in the development of their positions presented to regional telecommunications fora involved in the preparation of joint proposals to the WRC;

b)including in their proposals to the WRC, to the extent possible, material consistent with the ICAO Position;

c)supporting the ICAO position and the ICAO policy statements at ITU WRCs as approved by Council and incorporated in the Handbook on Radio Frequency Spectrum Requirements for Civil Aviation (Doc 9718);

Assembly Resolution A36-25 (A32-13)) (part 1)(part 1)

Preparation for a WRCPreparation for a WRC

d) undertaking to provide experts from their civil aviation authorities to fully participate in the development of States’ and regional positions and development of aviation interests at the ITU; and

e) ensuring, to the maximum extent possible, that their delegations to regional conferences, ITU study groups and WRCs include experts from their civil aviation authorities or other aviation officials who are fully prepared to represent aviation interests;

✓ Requests the Secretary General to bring to the attention of ITU the importance of adequate radio frequency spectrum allocation and protection for the safety of aviation; and

✓ Instructs the Council and the Secretary General, as a matter of high priority within the budget adopted by the Assembly, to ensure that the resources necessary to support increased participation by ICAO in international and regional spectrum management activities are made available.

Assembly Resolution A36-25 (A32-13)) (part 2)(part 2)

WRC 2012 Position and Policy (1)WRC 2012 Position and Policy (1)

Initial draft of the ICAO Position was developed by ACP, reviewed by the ANC (Nov 2008) and sent to States for comments (28 Nov 2008)

Position reviewed a second time by the ANC (May 2009), and by Council (June 2009), now including the following material:

Results of the consultation with States on the initial draft ICAO position (42 replies received)

Updates to the Policy Statements in the “Handbook on Radio Frequency Spectrum Requirements for Civil Aviation including Statement of Approved ICAO Policies” (Doc 9718)

SL-09/61, containing the approved ICAO Position, sent to all 190 ICAO Contracting States and relevant International Organizations (30 June 2009)

WRC 2012 Positionand Policy (2)WRC 2012 Positionand Policy (2)

ICAO Policy Statements A WRC is limited to certain issues and certain frequency bands.

The ICAO position only addresses spectrum usage in context with issues identified in the pre-set WRC agenda.

The ICAO Policy Statements however, indicate overall ICAO policy for each and every frequency band used by aviation safety services

The Policy Statements are “Official ICAO Policy”, approved by Council. Latest revision of the policy statements was done together with the development of the ICAO Position.

Included in Doc 9718, the “Handbook on Radio Frequency Spectrum Requirements for Civil Aviation” (latest revision is Rev 5, published in 2010)

WRC 2012 preparation (1)WRC 2012 preparation (1)

✓ Beyond the ICAO Position, Project: Secure and maintain the ICAO Position at ITU WRC 2012 ACP Working Group F to meet in the Regions / Regional

Aviation Frequency Spectrum Seminars, 2 two-week missions per year

ICAO Secretariat (HQ) to participate in ITU-R Study Groups (SG-5 / WP5B & SG-4 / WP4C), 4 two-week missions per year

ICAO Secretariat (HQ / Regional) to participate in meetings of regional telecommunications organizations, 2 – 4 one-week missions per year

In 2012, participation in WRC-2012, 3 ICAO Officers, 4 weeks.

✓ Dependency: Mission Travel Budget


WRC 2012 Agenda Items• 30 Agenda Items total

• 6 standing Items, some of which affect aviation

• 24 specific Agenda Items, 13 of which affect aviation

• 3 support the development of aviation spectrum

• 10 pose a threat to aviation spectrum allocations


Agenda Items supporting the Development of Aviation Spectrum:

Agenda Items 1.3:

To consider spectrum requirements and possible regulatory actions, including allocations, in order to support the safe operation of unmanned aircraft systems (UAS), based on the results of ITU‑R studies

Agenda Item 1.4:

To consider, based on the results of ITU‑R studies, any further regulatory measures to facilitate introduction of new aeronautical mobile (R) service (AM(R)S) systems in the bands 112-117.975 MHz, 960-1 164 MHz and 5 000-5 030 MHz

Agenda Item 1.7

To consider the results of ITU‑R studies in order to ensure long-term spectrum availability and access to spectrum necessary to meet requirements for the aeronautical mobile-satellite (R) service, and to take appropriate action on this subject, while retaining unchanged the generic allocation to the mobile-satellite service in the bands 1 525‑1 559 MHz and 1 626.5-1 660.5 MHz


Direct threats to Aviation Spectrum: Agenda Item 1.12

To protect the primary services in the band 37-38 GHz from interference resulting from aeronautical mobile service operations, taking into account the results of ITU‑R studies

Agenda Item 1.19 To consider regulatory measures and their relevance, in order to enable the introduction

of software-defined radio and cognitive radio systems, based on the results of ITU‑R studies

Agenda Item 1.21 To consider a primary allocation to the radiolocation service in the band 15.4-15.7 GHz,

taking into account the results of ITU-R studies.

Agenda Item 1.22 To examine the effect of emissions from short-range devices on radiocommunication

services

Agenda Item 1.23 To consider an allocation of about 15 kHz in parts of the band 415-526.5 kHz to the

amateur service on a secondary basis, taking into account the need to protect existing services


Potential threats to Aviation Spectrum: Agenda Item 1.5

To consider worldwide/regional harmonization of spectrum for electronic news gathering (ENG), taking into account the results of ITU‑R studies

Agenda Item 1.9 To revise frequencies and channelling arrangements of Appendix 17 to the Radio

Regulations in order to implement new digital technologies for the maritime mobile service

Agenda Item 1.14 To consider requirements for new applications in the radiolocation service and review

allocations or regulatory provisions for implementation of the radiolocation service in the range 30‑300 MHz

Agenda Item 1.15 To consider possible allocations in the range 3-50 MHz to the radiolocation service for

oceanographic radar applications, taking into account the results of ITU‑R studies

Agenda Item 1.25 To consider possible additional allocations to the mobile-satellite service, in accordance

with Resolution 231 (WRC-07)

A Potential future item, for the WRC-15/16 Agenda

Agenda Item 8.2

To recommend to the [ITU] Council items for inclusion in the agenda for the next WRC and to give its views on the preliminary agenda for the subsequent conference and on possible agenda items for future conferences, taking into account Resolution 806 (WRC-07)


Thank You!Thank You!

Definition of Radio Frequency Management:

“Radio frequency management is done by experts who meld years of experience with a curious blend of regulation, electronics, politics and not a little bit of larceny. They justify requirements, horsetrade, coerce, bluff and gamble with an intuition that cannot be taught other than by long experience.”

Vice Admiral Jon L. BoyesU.S. Navy

OverviewOverviewAeronautical Spectrum Management

ITU in brief (Radio Regulations)

ITU World Radio Conferences (WRCs), General Overview

WRC-07 Results

Preparation for a WRC, General

WRC-12 Position and Policy

WRC-12 Preparation

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EndEnd

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Four backup slides on overall spectrum challenges ahead – not only WRC

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ACP WG-FThe spectrum challenges ahead

ACP WG-FThe spectrum challenges ahead Overall share of spectrum used by aviation is 10 – 15% of all

available spectrum in the range 0 – 15.7 GHz Pressure on spectrum increasing

✓ Main drivers:• Mobile Phone services• Broadband wireless networking

✓ Many others

High yield to State/government from leasing spectrum to commercial providers

Administrative Incentive Pricing for Spectrum✓ Philosophy: Estimate the “opportunity cost” of denying alternative users

access to the spectrum. Users of the spectrum then pay a license fee equal to this opportunity cost. The intention with AIP is to promote the best social and economic use of the spectrum resource.

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ACP WG-FThe spectrum challenges ahead Safety Services (ARNS/AM(R)S/AMS(R)S), unpopular neighbours

due to stringent access requirements (6dB safety margin, super primary)

Old/Proven technologies used in aviation CNS systems, spectrum inefficient?

Long lifespan and high cost of aircraft, avionics and ground infrastructure

Technical or equipage SARPs normally not retroactive

Recent aviation updates to the Table of Frequency Allocations in the ITU Radio Regulations have been for increased flexibility of existing allocations.

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ACP WG-FThe spectrum challenges ahead One or two regions have spectrum congestion issues. A global or

a regional challenge?✓ Some arguments for a regional challenge

• NextGen and SESAR programmes define regional requirements in the two busiest regions only

• Cost with limited benefit in other regions?• Strong demands within a single region for more efficient use of

spectrum resource, due to pressures from non-aviation for access to existing aviation spectrum, less pressure in other regions

✓ Some arguments for a global challenge• Due to interregional mobility, global interoperability is required• Pressures on the spectrum resource are mounting in all regions,

unlikely that aviation will get new spectrum to cater for new requirements

• Spectrum efficiency is a global responsibility✓ Obviously a bit of both.

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ACP WG-FThe spectrum challenges ahead Spectrum pressure as a driver for future technology development,

as well as ATM requirements✓ Mounting pressures on aviation safety spectrum allocations

✓ New systems tailored for new ATM requirements will be required

✓ Systems will have more stringent spectrum efficiency demands than before

✓ Systems will have to share spectrum with older technology, a challenge on several levels

✓ Older technology will have to be phased out.

To date, global agreement on technology updates or replacements has always been difficult. Can this be changed? How?

20/04/23 49

Antenna

HFAntenna

High GainSatellite

Low GainSatelliteAntenna

HFTransceiver

ACARSManagement

Unit

VHF Transceiver

Satellite Data Unit

Amplifier

AudioControlPanel

Radio TuningPanel

VHFAntenna

TCAS II Mode SDisplays

TCAS II Mode S

TCAS IIAntenna

Mode SAntenna

GPSAntennas

DMEAntennas

VORAntennas


MonitoringAlertingSystem


Autopilot/FlightDirectorSystems

MMRILSGPS

DME

VOR

DME

VOR

IRS

Flt DeckDisplays/Alerting

ILSAntennas