Home >Documents >The ITU and its Radiocommunication Sector - Study Groups - Radiocommunication Assembly - World...

The ITU and its Radiocommunication Sector - Study Groups - Radiocommunication Assembly - World...

Date post:27-Mar-2015
Category:
View:214 times
Download:0 times
Share this document with a friend
Transcript:
  • Slide 1

The ITU and its Radiocommunication Sector - Study Groups - Radiocommunication Assembly - World Radiocommunication Conferences The ITU and its Radiocommunication Sector - Study Groups - Radiocommunication Assembly - World Radiocommunication Conferences Kevin Hughes Radiocommunication Bureau ITU Kevin Hughes Radiocommunication Bureau ITU Slide 2 Presentation Introduction to ITU Objectives of ITU Radiocommunication Sector (ITU-R) ITU-R Study Groups Conference (WRC) process ITU-R Recommendations and Handbooks Conclusions Slide 3 Member States Sector Members Associates UN bodies e.g. WMO, WHO Regional/National SDOs e.g. ETSI, IEC Regional Frequency Management e.g. CEPT Industry fora e.g. WiMAX International Telecommunication Union 189 Member States 645 Sector Members 106 Associates Slide 4 ITU Overview ITU-T Telecommunication standardization - network and service aspects ITU-R Radiocommunication standardization and global spectrum management ITU-R Radiocommunication standardization and global spectrum management ITU-D Assisting implementation and operation of telecommunications in developing countries Helping the World Communicate! Slide 5 Objectives of ITU-R Global coordination of radiocommunications ITU Radio Regulations International Spectrum Management Frequency Plans Slide 6 Objectives of ITU-R Global coordination of radiocommunications International focal point for standardization of wireless systems Recommendations - de facto Standards on: spectrum management issues radiocommunication system characteristics and operation Example topics: radiowave propagation wireless access systems EESS systems broadcasting Slide 7 Objectives of ITU-R To promote the development and use of radiocommunications for the benefit of all Global coordination of radiocommunications International focal point for standardization of wireless systems Promote the world-wide development of radiocommunications Slide 8 ITU-R Objective Objective achieved through (inter alia): World and Regional Radiocommunication Conferences Approval of Recommendations by Member States by correspondence at Radiocommunication Assembly Technical studies are required which are conducted in Study Groups Slide 9 ITU-R Study Groups Groups of experts (> 1500)from ITU membership Develop technical bases for WRCs and RRCs Develop Recommendations technical characteristics operational procedures Compile Handbooks Slide 10 ITU-R 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 Slide 11 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 Slide 12 Radiocommunication Assembly Establishes ITU-R Study Groups (and elects their chairmen/vice-chairmen) Adopts SG work programmes Approves Recommendations Approves Resolutions working procedures specific aspects of SG responsibility Slide 13 Scope of Study Group 7 (Science services) Systems for space operation, space research, Earth exploration and meteorology Radio astronomy Standard frequency and time signals Slide 14 SG 7 - some key areas of study - Allocations for space science services space operations and space research services Earth exploration satellite service meteorological services Compatibility between science services (active and passive) and other services (including sharing and protection criteria) Slide 15 Study Group Products Technical bases for WRC and RRC CPM Report ITU-R Recommendations Handbooks Slide 16 Preparation of CPM Report Slide 17 Structure and Contents of CPM Report Mobile, aeronautical mobile, radionavigation and radiolocation services Space science services FSS, MSS and BSS below 3 GHz Fixed service including HAPS and FSS above 3 GHz Services in LF, MF and HF bands and maritime mobile service Regulatory procedures and associated technical criteria applicable to satellite networks Future WRC programmes and other issues Part of CPM Report Chapter 1 Chapter 2 Chapter 3 Chapter 4 Chapter 5 Chapter 6 Chapter 7 Agenda Items 1.3, 1.4, 1.5, 1.6 1.2, 1.20, 1.21 1.7, 1.9, 1.11, 1.17 1.8, 1.18, 1.19 1.13, 1.14, 1.15, 1.16 1.10, 1.12, 7.1 2, 4, 5, 6, 7.1, 7.2 Slide 18 Chapter 2 of CPM Report Space science services Rapporteur: Mrs. Shayla Taylor (USA) WRC-07 Agenda items 1.2, 1.20, 1.21 1.2: Allocations and related regulatory issues for EESS (passive), SRS (passive) and Meteo-Sat in 18.1 18.4 GHz, 10.6 10.68 GHz and 36 37 GHz 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 1.21: Compatibility between RA and active space services (bands referred to in Res740) in order to review and update the threshold levels used for consultation (Annex to Res739) Slide 19 AI 1.2: Allocations and related regulatory issues for EESS (passive), SRS (passive) and MetSat in 18.118.4 GHz, 10.610.68 GHz and 3637 GHz (1) Current results of studies (18.1-18.4 GHz): the addition of 100 MHz seems feasible under certain conditions (but compatibility between MetSat and NGSO FSS not studied); proposes additional allocation, either 18.0-18.1 or 18.3- 18.4 GHz; indication that 18.0-18.1 GHz option may impose minor constrains on MetSat orbital positions due to operation of BSS feeder-links of networks belonging to Regions 1 and 3 BSS Plans/Lists (Appendix 30A) Slide 20 AI 1.2: Allocations and related regulatory issues for EESS (passive), SRS (passive) and MetSat in 18.118.4 GHz, 10.610.68 GHz and 3637 GHz (2) Current results of studies (10.6-10.68 GHz and 36-37 GHz): interference from FS in 10.6-10.68 GHz band may exceed limits for EESS sensors by ~17 dB; mitigation therefore necessary; preliminary sharing criteria proposed for 36-37 GHz band, but not to be applied to terrestrial systems brought into use before WRC-07 Slide 21 AI 1.20: Protection of EESS (passive) (bands 1400 1427 MHz, 23.6 24, 31.3 31.5, 50.2 50.4 GHz) from unwanted emissions of active services Current results of studies: TG 1/9 revising Rec. ITU-R SM.1633, which should be used as a basis for developing EESS protection criteria; proposed to include unwanted emission power [limit /level] in RR; sensors protected but some limitation on future active systems; still at a preliminary stage. Slide 22 AI 1.21: Compatibility between RA and active space services (Res.740) in order to review and update threshold levels used for consultation (Annex to Res.739) Current results of studies: proposed PFD threshold levels for RAS protection from interference from different services; 3 methods are under consideration: 1 st add approved thresholds in Res.739 and apply them (RAS protected, but more work for ADMs due consultation); 2 nd similar to 1 st but RNSS is not covered (no burden for ADMs but RAS may not be protected in 1559-1610 MHz); 3 rd no incorporation of thresholds (TBD). Slide 23 Chapter 1 of CPM Report Mobile, aeronautical mobile, radionavigation and radiolocation services Rapporteurs: Mrs. Darlene Drazenovich (USA) AI 1.3, 1.4 Mr. Alan Jamieson (New Zealand) AI 1.5, 1.6 WRC-07 Agenda items 1.3, 1.4, 1.5, 1.6 1.3: Consider upgrading of RLS in 9000 9200 MHz and 9300 9500 MHz to primary status and extending by 200 MHz the allocation to the EESS (active) and SRS (active) 1.4: Frequency related matters for IMT-2000 and systems beyond IMT-2000 1.5: Additional spectrum for wideband aeronautical telemetry / telecommand in 3 16 GHz 1.6: Additional allocations for the Aeronautical Mobile (R) service between 108 MHz and 6 GHz Slide 24 Study Group Products Technical bases for WRC and RRC CPM Report ITU-R Recommendations Handbooks Slide 25 Some ITU-R Recommendations developed by SG 7 ITU-R SA.1159 Performance criteria for data dissemination and direct data readout systems in the Earth Exploration-Satellite Service and Meteorological-Satellite Service using satellites in geostationary orbit ITU-R RS.577 (former ITU-R SA.577) Preferred frequencies and necessary bandwidths for spaceborne active remote sensors ITU-R RS.1165 (former ITU-R SA.1165) Technical characteristics and performance criteria for radiosonde systems in the meteorological aids service ITU-R RA.1630 Technical and operational characteristics of ground-based astronomy systems for use in sharing studies with active services between 10 THz and 1 000 THz Slide 26 Study Group Products Technical bases for WRC and RRC CPM Report ITU-R Recommendations Handbooks Slide 27 Handbooks developed by SG 7 Use of Radio Spectrum for Meteorology Space Research Communications Radio Astronomy Selection and Use of Precise Frequency and Time Systems EESS (under development) Slide 28 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 Slide 29 Thank you! Dr. Kevin A. Hughes Radiocommunication Bureau International Telecommunication Union (ITU) 1211 Genve 20 Tel: +41 22 730 5814 E-mail: [email protected]

Popular Tags:

Click here to load reader

Embed Size (px)
Recommended