Feb 2004ICAO ACP WGF,1 WRC 2007 agenda item 1.6 Work plan for Additional aviation spectrum...

Feb 2004 ICAO ACP WGF, 1

WRC 2007 agenda item 1.6

Work plan forAdditional aviation spectrum

allocation for AM®S

Presented by C. Pelmoine, EUROCONTROL


Plan of the presentation

• Objective of aviation for a new AM(R)S allocation

• Related activities

• Proposal for ITU WRC 2007 deliverables

• Time scale


Progress status on AI 1.6 work plan

SOFREAVIA awarded a contract to assist EUROCONTROL

for defining a work plan related to WRC07 AI 1.6 activities.

This presentation provides the outcomes of discussion on the

on-going activity

Work Package “Approach and Strategy”

Work Package “Definition of Deliverables”

Work Package “activities, time scale”


Objective of civil aviation

Ensure that adequate spectrum allocation will be available by 2010 onward in order to implement future complementary mobile air/ground communication services in highly congested areas within Europe and North America to face with the continuous and persistent saturation of the existing AM(R)S spectrum allocation.


Objective of civil aviation (Cont’)

To meet this objective, the civil aviation shall elaborate and present at ITU WRC strong arguments for allocation of new spectrum for AM(R)S, hinging on:

The introduction of new mobile communication services as complement to the existing ones in existing aviation allocations if feasible

In case the use of existing aeronautical allocation is not feasible, identify and justify new aviation spectrum


Objective of European ATC

At the current stage of the process, the EUROCONTROL view is :

To develop a terrestrial cellular based solution on a new allocation. This solution could be more limited to congested areas. This component is the main requirement made by civil aviation for ATC purpose.

To develop a satellite based technology on the spectrum available in 1.5/1.6 GHz using as far as possible existing development.

For the ITU WRC 2007, the civil aviation request for ATC purpose shall focus on an additional allocation specifically for a terrestrial system


Activities related to the WRC07 AI 1.6 preparation

They are of the following natures: Operational (requirements),

Technical (system architecture),Spectrum management.

For all domains, activities shall be started ASAP


Synoptic of activities

Technical Activities:General architecture studies:Transition issues studyTarget AMRS scenario definition

Spectrum management Activities :Definition of spectrum requirements

Operational

Requirement

Activities Co

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Technical Activities:General technology assessmentModulation techniques assessment and definition of initial spectrum requirements

Definition of solution selection criteriaSpectrum constraints definition

Spectrum management Activities :General Spectrum assessmentSharing scenario studyDefinition of the sharing criteria


Activities of the Operational domainTo clarify more accurately the need to satisfy capacity for 2015, taking into account the evolution of the ATM environment in congested areas like Western Europe. The activities are:

a) Identification of ATC requirements, that cannot be satisfied for 2015 within the existing VHF AM(R)S band, taking into account the ATM evolutions

b) Identification of AOC requirements that can be satisfied with the implementation of the AM(R)S with respect to ATC requirements,


Activities of the Operational domain (Cont’)

c) Identification of potential communication security requirements from the current situation analysis & the vulnerability of the current communication system.

d) Initial consideration on the operational implementation strategy to be applied: Areas where frequency congestion is the highest? Which type of airspace? Using an air-carriage mandate?


General architecture studies

a) Based on the findings of the operational activities regarding the nature and definition of the need, develop an operational concept and operating mode for the new services:

– identification of the required performances of the communication system to support the identified services

- identification of the safety requirements that the system must meet

b) Identification of possible system/network architectures alternatives

c) (If time prior WRC07 allows) Identification of the avionics architecture constraints on-board aircraft:

- Antenna implementation,

- Electromagnetic compatibility costing issues taking into account the other critical avionics equipment,

- Implementation and running costs

- Crew Human machine interface potential issues.


Technology assessment studies

a) Telecommunication technologies assessment: Assessment of suitable state-of the-art telecommunication technologies for their applicability to the aeronautical context in terms of advantages and drawbacks– Narrow / Wide band operation , – Channel access methods and channel management:

TDMA (Time division multiple access), CDMA (Code division multiplex access) ...,

b) Assessment of the specific spectrum requirement associated with the possible telecommunication technologies


Selection of the AM(R)S target system

a) Definition of selection criteria for the evaluation of the various solutions: operational suitability, technical benefits and overall implementation cost. The definition of the selection criteria shall start very early.

b) Characterisation of the spectrum constraints, positioning in the global spectrum, identification of the band that could be or could not be suitable to support the new services.

c) Study of the transition issues raised by the implementation of the solutions.

d) Selection of a target scenario based on one or more system/network alternatives with the spectrum requirement characterisation


Spectrum management activities

a) For each existing aviation allocation, review of usage in order to establish the foreseen evolution within the next 10 years. The conclusion of this task is the European Aeronautical Table of Spectrum Allocation and Requirements. It will constitute one key deliverable for WRC 07 as the justification of the existing allocations and the demonstration for the need of a new allocation.

b) Sharing scenarios study: for each existing aeronautical allocation when the level of usage is not too high, evaluate the possibility of sharing. This study will mainly focus on the susceptibility of the existing system operating within the existing allocation. The result of this task is also a key element of the evidence to be presented at WRC to justify a new allocation.


Spectrum management activities

c) Sharing criteria definition: in case the sharing is foreseen as possible, provide the initial feasibility of sharing compatibility and identify the sharing criteria to be implemented with the safety margin to be applied to both services.

d) Definition of the spectrum requirements: finally, based on the finding of operational and technical tasks, identify the spectrum requirements in term of bandwidth and spectrum location constraints.


Proposal for deliverables for ITU WRC 2007

Document 1: High level System Description Document

Document 2: Spectrum requirements

Document 3: Aeronautical Table of Spectrum Allocation, Current usage and future Requirements

Document 4: Implementation Schedule


Doc.1: High level System Description

– Describe the targeted operational concept and operating mode for AM(R)S services.

– Provide a high level description of the system architecture,

– Identify the main components of the system from a functional standpoint,

– Provide a description of the physical layer characteristics as it is a basic key input when justifying the spectrum requirement


Doc.2: Spectrum requirements

• The operational scenario to calculate the basic parameters such density of radio stations, density of users, traffic communication, …

• The spectrum required for the implementation of the new communication component.

• In annexes the used methodology, various assumptions taken to calculate the spectrum size, the detailed calculation.

• The first description of potential sharing criteria (i.e. compatibility study results and safety margins, legal agreement proposal)• The results of the analysis of the existing allocation usage and the identification of the potential possibilities to introduce in sharing communication component(s)


Doc.3: Aeronautical Table of Spectrum Allocation, Current usage and future

Requirements

This document shall describe, for each band, the current and the planned usage of allocation.

The executive summary of this document must clearly indicate in which existing allocation(s), the communication component(s) could be potentially introduced.


Doc.4: Implementation Schedule

• Schedule for the deployment of the new communication component(s) in terms of time and geography.

• Various phases of deployment from the design to the start of operation with specific emphasis on the airspace strategy for a phased introduction.

• Consistent with the date of ITU allocation of the requested spectrum allocation to be sure the usage of the allocated spectrum is effective.

• The transition elements shall be introduced in the schedule


Working documents

– The working documents are the whole set of documents that must be produced in order to support the elaboration of the ITU deliverable documents.

– Draft version of the deliverable documents

– Specific studies reports required to the definition of the system from an operational or technical standpoint. (Working doc)


Working Document list proposal

1. Review of AM(R)S operational requirements document2. Comparison of solutions, selection of the architecture3. Draft AM(R)S System Description 4. Draft European Aeronautical Table of Spectrum

Allocation and Requirements 5. Draft AM(R)S spectrum requirements 6. Sharing criteria definition7. Sharing compatibility study results 8. Draft AM(R)S Implementation Schedule


Documents Relationship

AMRS spectrum requirements

AM(R)S operational requirements document

European Aeronautical Table of Spectrum Allocation and Requirements

AMRS Implementation Schedule

Draft AMRS Implementation Schedule

WRC Deliverables

Result of comparison of the alternative solutions

AMRS high level System Description Document

Sharing criteria definition document

Sharing compatibility study results

Draft European Aeronautical Table of Spectrum Allocation and Requirements

Draft AMRS Systems Description Document

Draft AMRS spectrum requirements


ICAO ACP WGC Work plan

Technology Interest Group (TIG)- Philippe RenaudWG- C 7 ( April 2004-Montreal): Deliverable: Overview of candidate technologies, Selection Criteria

Requirement Interest Group (RIG) – Brent PhillipsWG-C7 (April 2004- Montreal) : Deliverable: Communication requirements, 2020 Applications

Spectrum Interest Group (SIG)- Mike BiggsWG-C-7 (April 2004- Montreal) ; Deliverable- Strategy Institutional matters--K van den Boogaard


ICAO ACP WGC schedule

• WG-C8 (October 2004)

• WG- C9 (April 2005)


• WG-C9 (April 2005)


• WG-C11 (April 2006)

• WG-C12 (Oct 2006)

• WG-C13( April 2007)

• WG-C14 (Oct 2008)

• Communication Traffic demand

• Spectrum Requirements (Submission to WG-F)

• Assessment of Recommended Technologies

• Selection of Technology

• Initiation of standardization

• System definition

• First Draft SARPs

• Initiate SARPs validation

• Validated SARPs to be recommended for adoption.


Time scale

• WGC plan is not realistic (SARPs in 2006 !) and not streamlined with ITU time scale

• The process for preparation to ITU WRC is complex and short-term regarding the extend of activities. The time scale for aviation shall be made compatible between the different aviation actors.

• Next step is the work Package “Activities, time scale” to rationalise the schedule and interdependency

between tasks


Conclusions

Questions ?

WGF to review the draft WGC plan

Provide Feedback

Contact point within EUROCONTROL:

[email protected]

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