Review of ITU-R Study Group Activities

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Review of ITU-R Study Group Activities

• Kevin A. Hughes
• Radiocommunication Bureau

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ITU-R objective

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

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ITU-R objective

• Objective 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 technical bases for WRCs (and RRCs)
• Draft Recommendations
• technical characteristics
• operational procedures
• Compile Handbooks

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Study Groups

• 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

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ITU-R Study Groups

• Currently 7 Study Groups
• Subordinate groups
• Working Party
• Task Group
• Rapporteur Group
• Joint .
• Coordination Committee for Vocabulary
• Special Committee (regulatory/procedural)
• CPM - Conference Preparatory Meeting

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Scope of 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

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SG 1- some key areas of study -

• Unwanted emissions
• out-of-band (OOB) and spurious emission domains
• protection of safety and passive services
• Spectrum management methodologies
• long-term planning for national SM
• economic approaches
• Handbooks
• Spectrum monitoring
• National spectrum management

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Scope of 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

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SG 3- some key areas of study -

• Global mapping of radiometeorological parameters
• rain intensity, water vapour density
• refractivity
• Prediction procedures
• interference and coordination
• Earth-satellite paths
• short-range communications (personal, LANs)
• terrestrial broadcasting and mobile services

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Scope of 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

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SG 4- some key areas of study -

• Sharing between non-GSO FSS systems and other FSS
  networks
• mitigation techniques for sharing between
• non-GSO/FSS systems and other networks using the
  GSO
• non-GSO FSS systems
• IP over satellite
• WRC-03 issues
• e.g. protection of MSS feeder links at 5 GHz

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Scope of 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

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SG 6- some key areas of study -

• Digital sound broadcasting below 30 MHz
• system specification (Rec. BS.1514-1)
• planning parameters (DNR)
• Studies relating to revised bcast satellite
  plans (Appendices 30 and 30A)
• sharing criteria between BSS, FSS and terrestrial
  services
• Guidelines for system options for digital
  terrestrial TV bcasting

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SG 6- some key areas of study (continued) -

• Coverage prediction methods and evaluation of
  DTTB systems
• Protection of bcast systems against radiation by
  wired systems, ISM equipment and short-range
  devices

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Scope of Study Group 7(Science services)

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

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SG 7- some key areas of study -

• Allocations for space science services
• space operations and space research services
• precipitation radars ( 35 GHz)
• Earth exploration satellite service
  (420-470 MHz)
• Radio astronomy
• protection criteria

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Scope of Study Group 8(Mobile services)

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

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SG 8- some key areas of study -

• IMT-2000
• update radio interface specs.
• global spectrum harmonization
• systems beyond IMT-2000
• PPDR (Public Protection and Disaster Relief)
• identification of spectrum
• Draft New Report on objectives and requirements
  for PPDR

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SG 8- some key areas of study (continued) -

• ITS (Intelligent Transportation Systems)
• standards for Vehicle Information and
  Communication Systems (VICS)
• evolution of Dedicated Short Range Communication
  (DSRC) systems
• RLANs (Nomadic Wireless Access)
• broadband NWA (frequency spectrum and standards
  harmonization)

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Scope of Study Group 9(Fixed service)

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

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SG 9- some key areas of study -

• High altitude platform stations (HAPS)
• additional allocations in range 18-32 GHz
• technical and operational characteristics
• impact on other services
• interference mitigation techniques
• Frequency bands for High Density systems in FSS
• above about 19 GHz
• Handbooks
• Frequency adaptive systems at MF/HF
• Fixed Wireless Access

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Joint Studies

• Joint Task Group (JTG) 4-7-8-9
• 5 GHz band allocations
• WRC-03 AI 1.5
• Resolution 736 (WRC-2000)
• JTG 4-7-8
• Sharing in band 13.75-14 GHz
• WRC-03 AI 1.24
• Resolution 733 (WRC-2000)

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Study Group Products

• Technical bases for WRC
• CPM Report
• Draft ITU-R Recommendations
• Handbooks

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CPM Report to WRC-03

1. Radionavigation, radnav-sat and radiolocation
   services
2. Mobile, mob-satellite and space science services
3. Fixed-satellite and broadcast-sat services
4. Fixed and fixed-sat services and HAPS
5. Maritime-mobile, amateur and am-sat, and bcast
   services at MF and HF
6. Other matters
7. Future work programme

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ITU-R Recommendations

• gt 900 Recommendations in 16 series
• Standards in areas of spectrum management and
  radio technology
• Result of consensus from meetings of world-wide
  experts
• Some referred to in RR
• Used by spectrum planners and system designers

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ITU-R Handbooks

• Over 30 published
• Tutorial in nature
• Emphasis on use by developing countries
• Liaison with ITU-D (and ITU-T)
• Continuing Handbook programme in ITU-R

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Concluding remarks

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