Activities of the Radiocommunication Sector

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Activities of theRadiocommunication Sector

• Yvon Henri
• Head of Space Services Department
  yvon.henri_at_itu.intRadiocommunication Bureau -
  ITU

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The ITU in brief

• UN specialized agency, concerned with the
  development of telecommunication networks and
  services worldwide
• 137 years old
• 189 Member States, 650 Sector Members
• 750 staff / 71 nationalities
• Website http//www.itu.int

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Global Harmonization
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Technological Convergence
Broadcasting
Telecom
Computing
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ITU 2003-2007 Strategic PlanGoals

• Maintain and extend international cooperation
  among all Member States and with appropriate
  regional organizations for the improvement and
  rational use of telecommunications of all kinds,
  taking the leading role in the United Nations
  system initiatives on information and
  communication technologies

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ITU 2003-2007 Strategic PlanGoals

• Assist in bridging the international digital
  divide in information and communication
  technologies, facilitating development of fully
  interconnected and interoperable networks and
  services to promote global connectivity, by
  taking a leading role in the preparations for,
  and taking due account of the relevant results
  of, the World Summit on the Information Society
  (WSIS)

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Structure of ITU

• General Secretariat (SG)
• Radiocommunication Sector (ITU-R)
• Telecommunication Standardization Sector (ITU-T)
• Telecommunication Development Sector (ITU-D)

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ITU Structure
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ITU Radiocommunication Sector(ITU-R)

• World Radiocommunication Conferences
• Radiocommunication Assemblies
• Study Groups
• Radio Regulations Board (RRB)
• Radiocommunication Advisory Group (RAG)
• Bureau (BR) - Director V. Timofeev, Russia
• Space services department
• Terrestrial services department
• Publications

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Mission

• To ensure rational, equitable, efficient and
  economical use of the radio frequency spectrum by
  all radiocommunication services - including those
  using the geostationary satellite orbit or other
  satellite orbits - and to carry out studies on
  radiocommunication matters

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WRC-03 Figures and facts

• 48 agenda items
• 2334 registered participants (without the
  Secretariat) from 145 Member States
• Over 2500 individual proposals
• 8 committees, over 60 working groups

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Agenda Item 1.3 Harmonized bands for public
protection

• to consider identification of globally/regionally
  harmonized bands, to the extent practicable, for
  the implementation of future advanced solutions
  to meet the needs of public protection agencies,
  including those dealing with emergency situations
  and disaster relief, and to make regulatory
  provisions, as necessary, taking into account
  RES 645 (WRC-2000)

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Agenda Item 1.3 Harmonized bands for public
protection

• RES 645 (WRC-2000) Global harmonization of
  spectrum for public protection and disaster
  relief
• Benefits of globally harmonized bands (increased
  potential for cooperation between countries, easy
  deployment, decreased costs)
• ITU-R to study identification of appropriate
  frequency bands to implement future solutions for
  public protection agencies and organizations
• ITU-R to study regulatory provisions necessary to
  identify such bands
• ITU-R to study issues concerning technical and
  operational matters for cross-border circulation
  of equipment

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Agenda Item 1.3 Harmonized bands for public
protection

• Resolution 646 (WRC-03) Public protection and
  disaster relief
• Difficulties to identify a single band several
  regional bands
• Region 1 380 470 MHz Region 2 746 806 MHz,
  806 869 MHz, 4940 4990 MHz Region 3 406.1
  430 MHz, 440 470 MHz, 806 824/850 869 MHz,
  4940 4990 MHz, 5850 5925 MHz
• Administrations are urged to use regionally
  harmonized bands for PPDR, taking into account
  national and regional requirements special
  attention to emerging technologies
• Complementary support use of amateur networks
• ITU-R to study issues concerning technical and
  operational matters

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Intergovernmental Conference on Emergency
TelecommunicationsHelsinki, 1998 (ICET-98)

• Adopted Convention on the Provision of
  Telecommunication Resources for Disaster
  Mitigation and Relief Operations
• Provides framework for rapid deployment and
  effective use of telecommunications in disasters
• An intergovernmental pact with provisions for
  non-governmental organisations

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Need for a national plan

• Countries need a national plan for disaster
  mitigation and relief operations
• Emergency telecommunications and restoration of
  facilities should be featured
• All radio services, including the Amateur
  Services, should be included in the plan

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ITU-D Handbook on Disaster Communications
Joint effort by UN/OCHA, IARU and ITU-D Includes
policy, operations, technical sections
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Agenda item 1.15 RNSS issues

• Review the results of studies concerning the
  radionavigation-satellite service in accordance
  with Resolutions 604 (WRC-2000), 605 (WRC-2000)
  and 606 (WRC-2000)

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Frequency Spectrum for the RNSS - Regulatory
situation
Res. 609 (WRC-03) RNSS-ARNS Compatibility (960)116
4 - 1215 MHz
Res. 608 (WRC-03) RNSS-RLS Compatibility 1215 -
1300MHz
ARNSS - For Safety-of-Life Services
WPR
ATC Radar
E5A
E6
E5B
L5
L2
G2
GLONASS
66 satellite filings from 12 ADM
GPS
1240
1300 MHz
1215
1164
1188
1260
RLS/ EESS RR No. 5.329 (WRC-03)
ARNSS protection EPFD -121,5 dBW/m² in 10 MHz for
all sats in view
RR No. 5.443B (WRC-03)RNSS-MLS
Compatibility 5000-5010MHz gt 5030-5150MHz
Current RNSS allocation
For Safety-of-Life Services
Res. 610 (WRC-03) Coordination and bilateral
resolution of technical compatibility issues for
RNSS networks
Res. 741 (WRC-03) RNSS-RAS Compatibility 5010-5030
MHz gt 4990-5000MHz
G1
L1
GPS
GLONASS
C1
1563
1587
1610 MHz
1559
1591
UpLink
DownLink
5030 MHz
5000
5010
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Agenda item 1.38 EESS(active) in 420470 MHz

• to consider provision of up to 6 MHz of frequency
  spectrum to the Earth exploration-satellite
  service (active) in the frequency band
  420-470 MHz, in accordance with Resolution 727
  (Rev.WRC-2000)
• Issue need for assessment and systematic
  observations of forest cover and rate of forest
  degradation in tropical and temperate regions
• Decisions of WRC-03
• Addition of EESS (active), on a secondary basis,
  in 432 438 MHz band
• SUP Resolution 727

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Agenda item 1.38 EESS (active) in 420 470 MHz
What is a SAR ? (1)

• Most Radars send out a short pulse and determine
  range of a target by the time taken for an echo
  to return
• Angle to the target is determined by the pointing
  direction of the high gain receiving antenna
• A SAR - Synthetic Aperture Radar - uses the
  motion of a satellite to synthesizean antenna
• It uses a crystal controlled signal which is
  coherent from pulse to pulse
• Using signal processing it combines several echos
  to produce the effect of a very long antenna
  along the direction of travel

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Agenda item 1.38 EESS (active) in 420 470 MHz
What is a SAR ? (2)

• Most SARs also sweep the signal over a wide
  frequency range during a relatively long pulse
• On reception, again using signal processing the
  pulse is compressed to become very short,
  allowing very accurate range determination
• A SAR can therefore produce IMAGES
• At a wavelength of 70cm (430 MHz), a SAR can
  penetrate the earths surface to detect moisture
  around tree roots
• It can therefore be used to study the health of
  tropical forests

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Agenda for WRC-07

• Issues related to space science services
• AI 1.2 allocations and related regulatory issues
  for EESS (passive), SRS (passive) and Meteo-SAT
  in 18.1 18.4 GHz, in 10.6 10.68 GHz and 36
  37 GHz
• AI 1.20 protection of EESS (passive) (bands 1400
  1427 MHz, 23.6 24 GHz, 31.3 31.5 GHz, 50.2
  50.4 GHz) from unwanted emissions of active
  services

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Activities of theRadiocommunication Sector

• Questions ?
• Yvon Henri
• yvon.henri_at_itu.int