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Information document from SITA on proposed GSM use aboard aircraft

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					                                                                          ACP/WGF12 - WP/12

                 International Civil Aviation Organization

                 Twelfth Meeting of Working Group F of the Aeronautical
                 Communications Panel

                 Montreal, Canada, 23-27 August 2004


Agenda Item 6:        Interference to aeronautical systems



                       INFORMATION DOCUMENT FROM SITA ON
                        PROPOSED GSM USE ABOARD AIRCRAFT
                                       (Presented by John Mettrop)
                                                    -2-                               ACP/WGF12 - WP/12


RA5 on Satellite Communications                                                  Info doc 1
Meeting in ERO 15-16.6.2004

Date issued: 3.6.2004
Source: RA5 Chairman

Subject: Information document to the RA5 and RA6 from SITA on proposed
GSM use aboard planes

                         ELECTRONIC COMMUNICATIONS COMMITTEE

                                                 DRAFT
                                              ECC Decision
                                           of DD MMM 2004
                     on the use of MPAX Base transceiver Stations on board aircraft
                                         in the frequency bands
                                   1710 – 1785 and 1805 – 1880 MHz
                                           (ECC/DEC/(04)**)

EXPLANATORY MEMORANDUM
    1       INTRODUCTION
There is increasing demand to use mobile communications from wherever you are located and the
MPAX system provides a means of using GSM mobile phones onboard aircraft. However to ensure
successful operation of the system there is a need for a harmonised approach to the licensing of the Base
Transceiver Stations. There is also a need to establish a basis for the free circulation of equipment and to
gain access to the required spectrum.

     2      BACKGROUND
It is a general aim of the Electronic Communications Committee (ECC) to facilitate the free circulation
and use of radio equipment.

The equipment under consideration in this decision, the GSM Base Transceiver Station fitted onboard
aircraft, is intended to provide an interface between the passengers GSM handsets and the terrestrial
GSM networks providing the full range of services normally provided on a GSM network. It is
considered that by providing an approved GSM network onboard aircraft flight safety will be improved.
There is a need for a harmonised approach to the authorisation of the GSM Base Transceiver Station to
ensure the provision of an uninterrupted service to users whilst aircraft using such equipment crosses the
borders of various countries and to reduce the regulatory requirements placed on administrations, GSM
network operators and aircraft operators.

The GSM Base Transceiver Stations shall conform to the following requirements . . . .

    3       LICENSING ISSUES
There may be a few cases where an aircraft operates within the airspace of a single administration but
generally an aircraft will travel through the airspace of more than one country with the time spend in the
airspace of any particular country could be of short duration. Thus some procedure is required to ensure
                                                      -3-                                ACP/WGF12 - WP/12

that the GSM Base Transceiver Station can be used in any national airspace that the aircraft is crossing
through.

It is also possible to licence the station by the aircraft where the equipment is installed (so that the
aircraft operator is the licensee) or alternatively the network can be licensed (so that the licensee is either
the network operator or the service provider). In the event of interference occurring, the later approach
would give administrations a single point of contact with the MPAX system operator who would have
the responsibility for dealing with the issue. Alternatively there is a possibility that there may be an
avionic requirement to separately licence each radio station.

A number of different approaches can be envisaged, each with its own pros and cons. Due to the
international nature of aircraft operation a harmonised approach would benefit MPAX users, service
providers, network operators and administrations.

   4        REQUIREMENT FOR AN ECC DECISION
There is a need for an ECC Decision to allow for the harmonised operation of MPAX GSM Base
Transceiver Stations and to permit access to the GSM frequency bands.

                                                ECC Decision
                                             of DD MMM 2004

                     on the use of MPAX Base transceiver Stations on board aircraft
                                         in the frequency bands
                                   1710 – 1785 and 1805 – 1880 MHz
                                           (ECC/DEC/(04)**)

“ The European Conference of Postal and Telecommunications Administrations,

considering
   a) that the bands 1710 – 1785 and 1805 – 1880 MHz are allocated to the mobile service on a co-
       primary basis in the ITU Radio Regulations with an implied understanding that this allocation is
       referring to terrestrial services only;

   b) that within Europe the bands 1710 – 1785 and 1805 -1800 MHz have been designated for GSM
      usage;

   c) that the spectrum power levels and frequency bands used will be controlled to ensure that there is
      no interference with GSM systems operating outside of the aircraft cabin airspace;

   d) the MPAX GSM system will permit the sharing of spectrum by multiple operators resulting in
      more efficient use of spectrum;

   e) that the technical characteristics of the GSM system will be in accordance with the relevant ETSI
      standards and specifications, subject to the control of power levels and frequency band used;

   f) there are various ECC Decisions permitting the free circulation and use of GSM handsets and
      this Decision is extending the coverage of these existing Decisions;
                                                    -4-                               ACP/WGF12 - WP/12


   g) that the MPAX GSM Base Transceiver Stations will be licensed by one administration but will
      be operated within the airspace of other countries;

   h) that the MPAX GSM Base Transceiver Station will be subject to approval by the Civil Aviation
      Authorities;

   i) that in some countries additional limitations on the operation of the MPAX GSM system, such as
      at low altitudes, may be necessary;

   j) that this Decision shall not impede EEA member countries from fulfilling their obligations
      according to Community law;


DECIDES
  1. that within Europe the bands 1710 – 1785 and 1805 -1800 MHz have been designated for GSM
     usage;

   2. that the aircraft cabin space is considered to be part of the national territory of the of the country
      of aircraft registry and the MPAX GSM system will only be used within the aircraft cabin so that
      service can be considered to be a national terrestrial service;

   3. that the spectrum power levels and frequency bands should be controlled to ensure that there is
      no interference with GSM systems operating outside of the aircraft cabin airspace;

   4. that administrations shall allow free circulation and use of the MPAX GSM Base Transceiver
      Station provided that[the MPAX system operator holds the required network licence] [ the Base
      Transceiver Station is covered by a radio station licence held by the aircraft operator], subject to
      the provisions of this Decision and compliance with the requirements related to considering i)
      above;

   5. that the Base Transceiver Stations must be subject to appropriate certification by the relevant
      Civil Aviation Authorities;

   6. that administrations should notify to the Office their requirements related to considering i) above,
      if any;

   7. that this Decision shall enter into force on [dd mmm yyyy] [or if possible a date before that];

   8. that administrations shall communicate the national measures implementing this Decision to the
      ECC Chairman and the Office when the Decision is nationally implemented.

      Note:
      Please check the CEPT web site (www.cept.org) for the up to date position on the
      implementation of this and other ECC Decisions.

				
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