Aeronautical Spectrum and Frequency Management in … · Aeronautical Spectrum and Frequency...

DFS Deutsche Flugsicherung GmbH

T. Jacob, CNS/MF - 12. June 2002

Aeronautical Spectrum and Frequency Management in

EuropeTorsten JacobGerman Air Navigation ServicesSpectrum and Frequency Management Office

LS Summit, Lichtenau, Germany, June 2002



Overview

1 Introduction

2 Aeronautical Spectrum Management Activities

3 European Preparation for ITU WRC’s

4 Aeronautical Frequency Management Activities

5 Frequency Assignment Planning

6 Outlook



Introduction

Aircraft operation would neither be safe nor be capable of meeting the global demand for rapid and cost-effective transport without aeronautical radio services.Radio spectrum is a scare natural resource with finite capacity limits and constantly increasing demands.Radio frequency spectrum congestion imposes the need for an efficient and effective spectrum and frequency management system.Spectrum management is the combination of administrative and technical procedures necessary to ensure the interference-free and efficient operation of radio services (e.g. Radionavigation).Frequency management deals with the assignment of frequencies totransmitting and/or receiving stations (e.g. airborne radio station).



Aeronautical Spectrum Management

Main activities:

Development of aviation position for ITU WRC‘sPreparation and participation at different ITU and CEPT meetingsGeneral electromagnetic compatibility analysis between aeronautical and non-aeronautical radio services for identification of sharing possibilities (e.g. Radar vs IMT/2000 - UMTS)Development of frequency planning criteria between aeronautical and non-aeronautical radio services (e.g. FM broadcast vs. GBAS)




High level objectives for the development of aviation position for ITU WRC‘s:

harmonisation of the European aviation position and a close liaison with ICAOcontinual and effective monitoring of European proposals for meetings of ITU, CEPT and ETSI with co-ordination on agreed positions and attendancerapid circulation of all relevant materialregular meetings of a specialised group to track events, discuss and agree joint policies and tactics and to organise attendance’s and presentations



Frequency Bands used by Aviation

Band Service Aviation Use Band Service Aviation Use

90 – 110 kHz RNS Long range navigation 1 545 - 1 559 MHz1 646.5 - 1 660.5 MHz

AMS(R)S Satellite communications

190 - 535 kHz ARNS NDB 1 544 - 1 545 MHz1 645.5 - 1 646.5 MHz

MSS Search and rescue

1 800 - 2 000 kHz RNS Short range navigation 1 559 - 1 610 MHz RNSS GNSS2 850 - 22 000 kHz AM(R)S Air/ground communications 1 610 - 1 626.5 MHz ARNS GNSS

3 023 and 5 680 kHz AM(R)S Search and rescue 2 700 - 3 100 MHz ARNS/RNS Surveillance radar74.8 - 75.2 MHz ARNS ILS marker 4 200 - 4 400 MHz ARNS Radio altimeter

108 - 117.975 MHz ARNS VOR/ILS 5 000 - 5 250 MHz ARNS MLS117.975 - 137 MHz AM(R)S Air/ground communications 5 350 - 5 470 MHz ARNS Airborne weather radar

121.5, 123.1, 243 MHz AM(R)S Emergency frequencies 8 750 - 8 850 MHz ARNS/RLS Precision approach radar328.6 - 335.4 MHz ARNS ILS glide path 9 000 - 9 500 MHz ARNS/RLS Precision approach radar406 - 406.1 MHz MSS Search and rescue 13.25 - 13.4 GHz ARNS Airborne doppler radar960 - 1 215 MHz ARNS DME 15.4 - 16.6 GHz ARNS ASDE/other systems

1 030 and 1 090 MHz ARNS SSR/ACAS 24.25 - 24.65 GHz RNS ASDE1 215 — 1 260 MHz RLS/RNSS GNSS 31.8 - 35.2 GHz RNS/RLS ASDE1 215 - 1 400 MHz ARNS/RNS Surveillance radar

Spectrum and Frequency Management Institutional Relationships

Convention ofInternationalTelecomms

Union

PlenipotentiaryConference

.......................................Admin. Council

Secretary General

ITU-R

WorldRadiocommunication

Conference

FINAL ACTSof the Conference

NationalTelecommunication

Authority

NationalFrequencyCommittee

NationalFrequencyRegister

ObserverStatus

MemberStatus

Assembly..................................

Council

Convention onSafety of

Civil Aircraft

Secretary General

Treaties andInternationalOrganizationsAir Navigation

Commission

Panels StudyGroups

StudyGroups

DivisionalMeeting

ANNEX 10to the Convention

FrequencyManagementAgreements

Processes ofInternationalAgreements

NationalRegulatoryFunctions

RegionalFrequencyPlanning

CivilAviationAuthority

Civil AviationRadio

Services

FrequencyAssignment

List

OtherRadio

Services

ICAORegionalPlanning

TELECOMMUNICATIONS CIVIL AVIATION

RADIO REGULATIONSto the Convention




Relevant Aeronautical Working Groups:

ICAO AMCP Working Group F - www.icao.int/anb/panels/amcp/

ICAO Frequency Management Group FMG

EUROCONTROL Spectrum Protection Group - www.eurocontrol.be/projects/spg



CEPT Organisation

• CEPT European Conference of Postal and Telecommunications Administrations• CERP Comité européen des régulateurs postaux• ECC Electronic Communications Committee• ERO European Radiocommuication Office



ECC Structure



European preparation for ITU WRC‘s

CPG Project Teams for preparation of WRC-2003:

CPG/PT1 - regulatory/procedural issues – Anders Frederich, S

CPG/PT2 - radionavigation, radionavigation-satellite, radiolocation, mobile, mobile-satellite and space science services – Vincent Meens, F

CPG/PT3 - fixed, fixed-satellite and broadcasting-satellite services –Terry Jeacock, UK

CPG/PT4 - HF and MF bands Pekka Länsman, FIN



European preparation for ITU WRC‘s

More information can be found:

CEPT - www.cept.org

ERO (CPG, WGFM, WGSE, WGRR) - www.ero.dk

ITU - www.itu.int



Aeronautical Frequency Management

Main activities:

Assignment of frequencies/channels for aeronautical communication, navigation and surveillance facilities:

– Day-to-day co-ordination– Frequency Planning Meetings

Development of frequency co-ordination criteria for new aeronautical radio services (e.g. 8.33 kHz, VDL, GBAS)

Development of software tools for frequency assignment planning and international co-ordination




Today‘s situation in Europe:




Today‘s situation in Europe Cont’d:




Registration Office- updates COM register- archives SUMs

COORDINATION/REGISTRATION PROCEDURES

no

all States update their

COM database

yes

Requesting State sends Co-ordination Requests to

States involved in shift(s)

decision ofRequesting

State

Requesting State sends Withdrawal Message to

States involved in shift(s)within 6 months

Requesting State sendsCo-ordination Requests to

all States concerned

Requesting State sends Withdrawal Message to

States concernedwithin 6 months

Requirement of Requesting State for an

addition/modification of an assignment

any objections from States involvedwithin 4 weeks

?

Shift(s) of existing

assignment(s) required

?

Bilateral negotiations

between Statessuccesful

?

yes

yes

yesno

no

Bilateral negotiations

between Statessuccesful

?

yes no

Requesting State (& when applicable, States involved in shift(s))

send Registration Request(s) to States concerned

and Registration Office

Registration Office publishes monthly

SUMs receivedto all States

any objection(s) to SUM's received

from any State(s) within 3 weeks

?

Registration Office publishes monthlyRegistered SUMs

to all States

any objections from

States concernedwithin 4 weeks

?

no

yes

no

this part only whenshift(s) are necessary

decision ofRequesting

State

Registration Office publishes monthly

Objections Receivedto all States

Frequency assignmentco-ordination process between States

Supporting function by ICAO and EUROCONTROL



Frequency Assignment Planning

VHF voice and data communication:

...46 3-Dimensional Sectors (“Cells”)

NOTE: each sector

has a frequency

protected VHF

assignment




VHF voice and data communication Cont’d:

Co-channel protection requirement for VHF voice communication:

minimum desired/undesired signal strength ratio of 14 dB (5 : 1 ratio) between circular services

minimum desired/undesired signal strength ratio of 20 dB between area services

DESIREDSIGNAL

INTERFERENCEVICTIM

GROUND

UNDESIREDSIGNAL

GROUND RADIO

INTERFERENCE SOURCE

RADIOCONTROLLER 1

CONTROLLER 2




Instrument Landing System (ILS):




Instrument Landing System (ILS) Cont‘d:

Minimum separation between second facility and the Protection Point of the first facility of 80 NM

80 NM

ILS localizer protection point at 25 NM distance and6250 ft height

Minimum separation between second facilityand the protection point of the first facility

ILS 1

ILS 2

UNDESIREDSIGNAL




VHF Omni-directional Range (VOR):




VHF Omni-directional Range (VOR) Cont‘d:

Minimum desired/undesired signal strength ratio of 20 dB within the protected coverage of VOR facilities

DESIREDSIGNAL

INTERFERENCEVICTIM

UNDESIRED SIGNAL

VOR 2

INTERFERENCE SOURCE

VOR 1




Distance Measuring Equipment (DME):

Interrogation

Reply

Aircraft with Interrogator

Transponder

TX Interrogation

RX Interrogation

RX Reply

Interrogator:

Transponder:

TX Reply

Transponder Delay Propagation TimePropagation Time

t

t

DF004PP




Distance Measuring Equipment (DME) Cont’d:

Co-channel protection requirement for DME:

Minimum desired/undesired signal strength ratio of 8 dB for same frequency, same pulse code

Minimum desired/undesired signal strength ratio of 0 dB for same frequency, different pulse code

DESIREDSIGNAL

INTERFERENCEVICTIM

UNDESIREDSIGNAL

DME 2

INTERFERENCE SOURCE

DME 1



Frequency Assignment Planning Tool



Outlook

Introduction of advanced spectrum and frequency management tools for licensing, national and international co-ordination of aeronautical frequency assignments

Introduction of a more sophisticated frequency assignment planning tools for existing and new aeronautical radio services (VDL, GBAS etc.)

Electronic co-ordination and data exchange tools

Aeronautical Spectrum and Frequency Management in … · Aeronautical Spectrum and Frequency...

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