ITUR Study Groups

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ITU-R Study Groups
ITU Radiocommunication Seminar
Porto Seguro 21-25 November 2005
K. A. Hughes, Head, SG Dept, ITU-BR
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ITU-R mission

• to ensure rational, equitable, efficient and
  economical use of the spectrum by all services,
  
• to carry out studies and adopt Recommendations
  on radiocommunication matters

• Mission achieved through (inter alia)
• World and Regional Radiocommunication Conferences
• Approval of Recommendations
• Technical studies are required which are
  conducted in Study Groups

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ITU-R Study Groups

• Groups of experts from ITU membership
• Draft Recommendations (technical characteristics
  operational procedures
• Draft technical bases for WRCs and RRCs
• Compile Handbooks

SG 1 Spectrum management SG 3 Radiowave
propagation SG 4 Fixed-satellite service SG
6 Broadcasting service SG 7 Science services SG
8 Mobile services SG 9 Fixed service
- Coordination Committee for Vocabulary (CCV) -
Special Committee (regulatory/procedural) -
Regulatory/Procedural Group (RPG for RRC-06) -
Conference Preparatory Meeting (CPM)

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Study Group 1 (Spectrum management)

• Principles and techniques for
• spectrum management
• sharing criteria and methods
• spectrum monitoring
• long-term strategies for spectrum utilization
• Inter-service sharing and compatibility

Scope

• UWB compatibility and spectrum management
  framework
• Spectrum management methodologies
• long-term planning for national SM
• economic approaches
• Handbooks
• Computer aided techniques for spectrum
  management
• National spectrum management

Key areas of study
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Study Group 3 (Radiowave propagation)

• Propagation of radiowaves in ionized and
  non-ionized media and the characteristics of
  radio noise, for the purpose of improving
  radiocommunication systems

Scope

• Global mapping of radiometeorological parameters
• rain intensity, water vapour density
• refractivity
• Prediction procedures
• terrestrial broadcasting and mobile services
  (RRC)
• mobile personal communication (IMT-2000, GMPCS)
  and wireless access systems (RLAN, BWA)
• Earth-space paths
• interference and coordination

Key areas of study
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Study Group 4 (Fixed-satellite service)

• Systems and networks for the FSS and
  inter-satellite links (in the FSS), including
  associated tracking, telemetry and telecommand
  functions

Scope

• Sharing between HEO/FSS and GEO/FSS networks
• calculation of minimum separation angles
• analysis of interference from HEO system TTC
  transmissions into GSO/FSS networks    
• protection of GEO/FSS networks from interference
  caused by HEO/FSS systems
• IP over satellite
• WRC-07 issues
• e.g. study spectrum requirements and technical
  provisions for possible global harmonised
  broadband FSS systems for Internet applications

Key areas of study
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Study Group 6 (Broadcasting service)

• Radiocommunication broadcasting (terrestrial and
  satellite) of vision, sound, multimedia and data
  services primarily intended for delivery to the
  general public

Scope

• Digital terrestrial broadcasting
• protection criteria for RRC
• planning parameters" for digital sound
  broadcasting at frequencies below 30 MHz.
• transition from analogue to digital terrestrial
  broadcasting
• Digital satellite broadcasting
• satellite return channel for interactive BSS
• system parameters for BSS between 17.3 and 42.5
  GHz (including associated feeder-links)
• Studies on advanced broadcasting technologies
• large screen digital imagery (LSDI) interactive
  multimedia services
• objective measurement of perceptual image quality
  image scanning formats
• Studies for WRC-07
• identification of additional spectrum for the
  broadcasting service in the HF bands
• protection of terrestrial broadcasting service
  from multiple satellite broadcasting systems in
  the band 620-790 MHz

Key areas of study
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Study Group 7 (Science services)

• Systems for space operation, space research,
  Earth exploration and meteorology
• Radio astronomy
• Standard frequency and time signals

Scope

• Allocations for space science services
• space operations and space research services
• Earth exploration satellite service
• Compatibility between science services (active
  and passive) and other services (including
  sharing and protection criteria)
• Handbooks
• radio astronomy
• use of radio spectrum for meteorology (with WMO)

Key areas of study
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Study Group 8 (Mobile services)

• Systems and networks for the mobile,
  radiodetermination and amateur services,
  including related satellite services

Scope

• IMT-2000
• update radio interface specifications
• systems beyond IMT-2000
• ITS (Intelligent Transportation Systems)
• standards for Vehicle Information and
  Communication Systems (VICS)
• evolution of Dedicated Short Range Communication
  (DSRC) systems
• Software defined radio systems
• system standardization regulatory
  considerations
• WRC-07 issues
• aeronautical mobile and mobile-satellite service
  requirements and sharing studies
• radiolocation requirements at 9 GHz
• use of digital technology in the MF and HF
  maritime mobile bands

Key areas of study
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Study Group 9 (Fixed services)

• Systems and networks of the fixed service
  operating via terrestrial stations

Scope
Fixed wireless systems providing fixed wireless
access (FWA), including broadband (BWA), using
point-to-point (P-P) or point-to-multipoint
(P-MP) distribution systems High-density
applications (HDFS) High altitude platform
stations (HAPS) High-Frequency (HF) systems
Key areas of study
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Study Group Products

• ITU-R Recommendations
• Handbooks
• Technical bases for WRC and RRC
• e.g., CPM Report

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ITU-R Recommendations

• The ITU-R Recommendations constitute a set of
  international technical standards. They are the
  result of studies undertaken by
  Radiocommunication Study Groups on
• the use of a vast range of wireless services,
  including popular new mobile communication
  technologies
• the management of the radio-frequency spectrum
  and satellite orbits
• the efficient use of the radio-frequency
  spectrum by all radiocommunication services
• terrestrial and satellite broadcasting
• radiowave propagation
• systems and networks for the fixed-satellite
  service, the fixed and the mobile services
• space operation, Earth exploration-satellite,
  meteorological-satellite and radio astronomy
  services.
• The ITU-R Recommendations are approved by ITU
  Member States. Their implementation is not
  mandatory however, as they are developed by
  experts from administrations, operators, the
  industry and other organizations dealing with
  radiocommunication matters from all over the
  world, they enjoy a high reputation and are
  implemented worldwide.

• Used by spectrum planners and system designers
• Some referred to in the Radio Regulations
• Over 900 Recommendations in 16 series

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ITU-R Handbooks
ITU-R Handbook is a text which provides a
statement of the current knowledge, the present
position of studies, or of good operating or
technical practice, in certain aspects of
radiocommunications, which should be addressed to
a radio engineer, system planner or operating
official who plans, designs or uses radio
services or systems, paying particular attention
to the requirements of developing countries. It
is self-contained, require no familiarity with
other ITU Radiocommunication texts or procedures,
but does not duplicate the scope and content of
publications readily available outside the ITU.

• Tutorial in nature
• Liaison with ITU-D (and ITU-T)
• Continuing Handbook programme in ITU-R
• Over 30 Handbooks published

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CPM Report to WRC-07structure

• Mobile, Aeronautical Mobile, Radionavigation and
  Radiolocation services
• Space Science Services
• Fixed-Satellite, Mobile-Satellite and
  Broadcasting-satellite service below 3GHz
• Fixed Services including HAPS and fixed-sat
  services above 3 GHz
• Services in LF, MF and HF bands and Maritime
  service
• Regulatory procedures and associated technical
  criteria applicable to satellite networks
• Future WRC work programmes and other issues

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Conclusion

• The Study Groups represent a major aspect of
  ITU-R activities
• Technical forum for discussion amongst experts
• Recommendations and Handbooks
• Technical bases for Radio Conferences