Transcript Review of Study Group Activites

Review of Study Group
Activities
Kevin A. Hughes
Radiocommunication Bureau
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”
ITU-R objective
Objective achieved through (inter alia):
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World Radiocommunication Conferences
Approval of Recommendations
Technical studies are required
which are conducted in Study Groups
ITU-R Study Groups
• Groups of experts from ITU membership
• > 1 500 participants
• Draft technical bases for WRCs
• Draft Recommendations
• technical characteristics
• operational procedures
• Compile Handbooks
Study Groups
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SG 1:
SG 3:
SG 4:
SG 6:
SG 7:
SG 8:
SG 9:
Spectrum management
Radiowave propagation
Fixed-satellite service
Broadcasting service
Science services
Mobile services
Fixed service
ITU-R Study Groups
• Currently 7 Study Groups
• Subordinate groups
• Working Parties
• Task Groups
• (Joint) Rapporteur Groups
• CPM - Conference Preparatory Meeting
• prepares technical bases for forthcoming WRC
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
SG 1
- some key areas of study -
• Unwanted emissions
• (i) spurious and (ii) out-of-band (OOB)
• permitted power limits
• protection of safety and passive services
• boundary between “spurious” and “OOB”
• Spectrum management methodologies
• long-term planning for national SM
• economic approaches
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
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)
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
SG 4
- some key areas of study • Sharing between:
• non-GSO FSS networks and GSO networks
• different non-GSO FSS networks
• Power limits
• Mitigation techniques
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orbital avoidance
optimization of satellite constellation
satellite diversity
optimization of antenna patterns
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
SG 6
- some key areas of study • Digital sound broadcasting below 30 MHz
• emphasis on single world-wide standard
• improved quality and spectrum efficiency
• Studies on new broadcasting-satellite plan
(Appendices S30 and S30A of RR)
• sharing criteria between BSS, FSS and terrestrial
services
• Guidelines for system options for digital terrestrial
TV broadcasting
Scope of Study Group 7
(Science services)
• Systems for:
• space operations
• operation of space craft, e.g. tracking, telemetry
• space research
• scientific and technical research purposes
• Earth exploration and meteorology
• active or passive sensing of Earth’s environment
• Radio astronomy
• Standard frequency and time signals
SG 7
- some key areas of study • Allocations for space science services
• space research and space operation services
• precipitation radars (~ 35 GHz)
• Earth exploration satellite service
(420-470 MHz)
• Radio astronomy
• sharing possibilities and criteria
• extreme sensitivity to unwanted emissions
• sidebands from digital modulation systems
Scope of Study Group 8
(Mobile services)
Systems and networks for the mobile,
radiodetermination and amateur services,
including related satellite services
SG 8
- some key areas of study -
• IMT-2000
• 3G personal mobile communication system
• wireless access to wide range of services
• voice, internet, broadcasting, email
• terminal (handheld) mobility everywhere
• agreed system based on ITU standards
• specification of Radio Transmission Technology
• frequency bands (WRC-2000)
IMT-2000: flexible, multifunctional
Global
Satellite
Suburban
Macrocell
Urban
Microcell
Basic Terminal
PDA Terminal
Audio/Visual Terminal
In-Building
Picocell
SG 8
- some key areas of study -
• IMT-2000 (continued)
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update radio interface specs. (RSPC)
global spectrum harmonization
global circulation of terminals
systems beyond IMT-2000
opportunities for developing countries
• facilitates access to telecoms networks
SG 8
- some key areas of study (continued) -
• TICS (Transport Information and Control
Systems)
• standards for Vehicle Information and
Communication Systems (VICS)
• evolution of Dedicated Short Range
Communication (DSRC) systems
TICS
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SG 8
- some key areas of study (continued) -
• RLANs (Nomadic Wireless Access)
• broadband NWA
• e.g. wireless access to labtop computers
• frequency spectrum and standards
harmonization
Scope of Study Group 9
(Fixed service)
Systems and networks of the fixed service
operating via terrestrial stations
SG 9
- some key areas of study • High altitude platform stations (HAPS)
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balloon-supported platforms at ~21 km altitude
telecom services to a city and surroundings
spectrum allocation at ~ 47 GHz
additional allocations sought in range 18-32 GHz
• technical and operational characteristics
• impact on other services
• interference mitigation techniques
• Fixed Wireless Access
Terrestrial Fixed Wireless Access
SG 9
- some key areas of study -
• High Density systems in FS and FSS
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high concentration of terminals in a given area
FWA to wide range of services
HD FS spectrum: between 30 to 60 GHz
HD FSS spectrum: currently under study
Joint Task Group 1-6-8-9
• Involves 4 Study Groups
• Review of spectrum and regulatory
requirements for emerging terrestrial
wireless interactive multimedia applications
• Technical convergence of services
• scope covers fixed, mobile and broadcasting
Terrestrial Wireless Interactive
Multimedia Systems
Broadcasting
Interactive
Broadcasting
LMDS
MWA/Cellular
BWA
HDFS
NWA/RLAN
Mobile
FWA
Fixed
Study Group Products
• Technical bases for WRC
• CPM Report
• Draft ITU-R Recommendations
• Handbooks
CPM Report to WRC-03
1. Radionavigation, radnav-sat and radiolocation
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services
Mobile, mob-satellite and space science services
Fixed-satellite and broadcast-sat services
Fixed and fixed-sat services and HAPS
Maritime-mobile, amateur and am-sat, and
b’cast services at MF and HF
Other matters
Future work programme
ITU-R Recommendations
• > 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
ITU-R Handbooks
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Approximately 20 published
Tutorial in nature
Emphasis on use by developing countries
Continuing Handbook programme in ITU-R
• Fixed-Satellite Service handbook
• Frequency adaptive systems at MF/HF
• FWA
• Spectrum monitoring
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