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ITU ACTIVITIES ON DIGITAL RADIO IMPLEMENTATION

ITU ACTIVITIES ON DIGITAL RADIO IMPLEMENTATION. István BOZSÓKI ITU/BDT/TND ITU/ABU Regional Workshop on Digital Radio Implementation 3-6 August 2009, Kuala Lumpur, Malaysia. Frequency Bands Allocated for Terrestrial Broadcasting Services/1. Low frequency (LF) and medium frequency (MF)

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ITU ACTIVITIES ON DIGITAL RADIO IMPLEMENTATION

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  1. ITU ACTIVITIES ON DIGITAL RADIO IMPLEMENTATION István BOZSÓKI ITU/BDT/TND ITU/ABU Regional Workshop on Digital Radio Implementation 3-6 August 2009, Kuala Lumpur, Malaysia

  2. Frequency Bands Allocated for Terrestrial Broadcasting Services/1 • Low frequency (LF) and medium frequency (MF) 1 subject to GE75 Agreement (LF/MF-AM radio) 2 subject to RJ81 Agreement (MF-AM radio) 3 subject to RJ88 Agreement (MF-AM radio) ITU/ABU Regional Workshop, 3-6 August 2009, Kuala Lumpur, Malaysia

  3. Frequency Bands Allocated for Terrestrial Broadcasting Services/2 • High frequency (HF) for national broadcasting 4 Only in the "Tropical Zone", see RR 5.16 to 5.20, 5.21 and 23.3 to 23.10 ITU/ABU Regional Workshop, 3-6 August 2009, Kuala Lumpur, Malaysia

  4. Frequency Bands Allocated for Terrestrial Broadcasting Services/3 • High frequency (HF) for international broadcasting under RR12 ITU/ABU Regional Workshop, 3-6 August 2009, Kuala Lumpur, Malaysia

  5. Frequency Bands Allocated for Terrestrial Broadcasting Services/4 • Very High Frequency (VHF) bands 5 subject to ST61 or GE89 Agreement (analogue television) 6 subject to GE84 Agreement (VHF-UHF radio) 7 subject to GE06 Agreement ITU/ABU Regional Workshop, 3-6 August 2009, Kuala Lumpur, Malaysia

  6. Frequency Bands Allocated for Terrestrial Broadcasting Services/5 • Ultra High Frequency (UHF) bands 8 subject to GE06 Agreement 9 only in some parts of the African Broadcasting Area ITU/ABU Regional Workshop, 3-6 August 2009, Kuala Lumpur, Malaysia

  7. TERRESTRIAL BROADCASTING PLANS • Many Plans have been drawn up by different regional conferences to facilitate the use of terrestrial service frequencies by administrations parties to these Agreements. • The Plans at present in force as annexes to Regional Agreements are as follows: • ST61The Plan for television and sound broadcasting in the European broadcasting area, Stockholm, 1961 (ST61). • GE75The Plan for MF broadcasting in Regions 1 and 3 and LF broadcasting in Region 1, Geneva, 1975 (GE75). • RJ81The Plan for MF broadcasting in Region 2, Rio de Janeiro, 1981 (RJ81). • GE84The Plan for use of the band 87.5-108 MHz for FM sound broadcasting in Region 1 and part of Region 3, Geneva, 1984 (GE84). • RJ88The Plan for use of the band 1 605-1 705 kHz in Region 2, Rio de Janeiro, 1988 (RJ88). • GE89The Plan for VHF/UHF television broadcasting in the African Broadcasting Area and neighbouring countries, Geneva, 1989 (GE89). • GE06The Plans for VHF/UHF analogue and digital broadcasting in parts of Regions 1 and 3, in the frequency bands 174-230 MHz and 470-862 MHz, Geneva 2006 ITU/ABU Regional Workshop, 3-6 August 2009, Kuala Lumpur, Malaysia

  8. PLANS / AGREEMENTS • LF/MF • HFBC • Band II • Bands III, IV/V ITU/ABU Regional Workshop, 3-6 August 2009, Kuala Lumpur, Malaysia

  9. LF/MF-AM radio • GE75 • Regional Agreement concerning the Use by the Broadcasting Service of Frequencies in the Medium Frequency Bands in Regions 1 and 3 and in the Low Frequency Bands in Region 1. ITU/ABU Regional Workshop, 3-6 August 2009, Kuala Lumpur, Malaysia

  10. Frequency bands of GE75 • LF: 148.5-283.5 kHz in Region 1 • 15 channels , 9kHz spacing • MF: 526.5-1606.5 kHz Region 1&3 • 120 channels, 9kHz spacing • 3 low power channels (< 1kW) • 1485, 1584 and 1602 kHz ITU/ABU Regional Workshop, 3-6 August 2009, Kuala Lumpur, Malaysia

  11. Introduction of Digital transmission • Rule of Procedure (RRB) • Transmission systems DRM A2 and B2 • Radiation reduced by at least 7 dB in all directions w.r.t analogue assignment • Temporary measure until the decision from a competent conference • ITU-R Rec. BS.1514 - system description • ITU-R Rec. BS.1615 – Planning parameters • SFN operation possible ITU/ABU Regional Workshop, 3-6 August 2009, Kuala Lumpur, Malaysia

  12. Current usage (June 2009) ITU/ABU Regional Workshop, 3-6 August 2009, Kuala Lumpur, Malaysia

  13. Implementation aspects • Difficulty to submit digital assignments – planning criteria not available for digital • Notify digital systems as analogue systems - MIFR • Problematic to introduce new digital assignments in some congested areas • Main introduction method is conversion from analogue to digital ITU/ABU Regional Workshop, 3-6 August 2009, Kuala Lumpur, Malaysia

  14. HFBC (Art. 12) • Adopted by the World Radiocommunication Conference 1997 (WRC-97). • In force since 1999. • Main principles • Equal access to the HF bands • Equitable treatment of national and international requirements • Efficient use of the spectrum • Minimise incompatibilities • Administrations may authorise broadcasters or other organisations to coordinate on their behalf ITU/ABU Regional Workshop, 3-6 August 2009, Kuala Lumpur, Malaysia

  15. Introduction of digital HFBC • 12.7 § 6 ..Other modulation techniques recommended by ITU-R shall be permitted in place of double-sideband or single-sideband emissions, provided that the level of interference caused to existing emissions is not increased. • Res. 517 (Rev.WRC-07) • Introduction of digital modulation schemes 3 200 – 26 100 kHz • Res. 543 (WRC-03) • Provisional RF protection ratio values - analogue and digitally modulated emissions in HFBC • Entry into force July 2003 ITU/ABU Regional Workshop, 3-6 August 2009, Kuala Lumpur, Malaysia

  16. Current usage • First digital requirements received in 2003 • SFN operation is a technical challenge • Number of requirements make introduction of new digital requirements difficult ITU/ABU Regional Workshop, 3-6 August 2009, Kuala Lumpur, Malaysia

  17. Band II • GE84 Agreement, Geneva 1984 (VHF-FM radio) • Frequency band: 87.5 – 108 MHz • Planning area: The countries of Region 1 as defined in No. 393 of the Radio Regulations together with the Democratic Republic of Afghanistan and the Islamic Republic of Iran. ITU/ABU Regional Workshop, 3-6 August 2009, Kuala Lumpur, Malaysia

  18. Introduction of Digital transmission • Chapter 3 to Annex 2, Section 3.1: • Use of systems with different characteristics (e.g. digital modulation) • Does not cause greater interference • Nor require higher protection • than reference system in the Plan ITU/ABU Regional Workshop, 3-6 August 2009, Kuala Lumpur, Malaysia

  19. Current usage • May 2009: • Bands congested in many parts of the Planning Area ITU/ABU Regional Workshop, 3-6 August 2009, Kuala Lumpur, Malaysia

  20. Implementation aspects • Problematic to introduce new digital assignments in congested bands • Consider different introduction strategies: • Band segmentation • Digital switch-over • Conversion from analogue to digital • Relaxed planning parameters (unofficial) ITU/ABU Regional Workshop, 3-6 August 2009, Kuala Lumpur, Malaysia

  21. Bands III, IV/V • GE06 Agreement, Geneva 2006 • Frequency bands: • Band III: 174‑230 MHz (Morocco: 170-230 MHz analogue TV) • Band IV: 470‑582 MHz • Band V: 582‑862 MHz • Planning area: Region 1 (those parts of Region 1, as defined in No. 5.3 of the Radio Regulations, situated to the west of meridian 170° E and to the north of parallel 40° S, except the territories of Mongolia) and the Islamic Republic of Iran. ITU/ABU Regional Workshop, 3-6 August 2009, Kuala Lumpur, Malaysia

  22. Technical criteria forSound Broadcasting • T-DAB system only • Assignments and allotments • Reference Planning Configuration as system variants • RPC 4 – Mobile Reception • RPC 5 – Portable Indoor Reception ITU/ABU Regional Workshop, 3-6 August 2009, Kuala Lumpur, Malaysia

  23. Transition period (1) • The Transition period started on : • 17 June 2006 at 0001 hours UTC • assignments in the analogue Plan (as specified in § 3.1.2 of Article 3) shall be protected • The Transition period shall end : • on 17 June 2015 at 0001 hours UTC (for UHF bands in all countries; for VHF in all countries except those that opted for 17 June 2020) • on 17 June 2020 at 0001 hours UTC for the some countries (listed in GE06 Agreement) ITU/ABU Regional Workshop, 3-6 August 2009, Kuala Lumpur, Malaysia

  24. Transition period (2) • Art 12 of GE06 Agreement • After the end of the transition period the BR will: • Cancel analogue TV entries in the Plan • Cancel provisions in § 4.1 of Art 4 to modify the analogue TV Plan • Cancel remarks of digital broadcasting entries with respect to analogue TV ITU/ABU Regional Workshop, 3-6 August 2009, Kuala Lumpur, Malaysia

  25. Transition period (3) • BR will review assignments in MIFR that correspond to analogue TV • Invite administrations to cancel these entries • If required analogue TV can continue to operate: • Exist a corresponding assignment in Plan • Already brought in use prior to end date of transition • Shall not cause unacceptable interference to, nor • Claim protection from assignments operating within provisions of the Agreement ITU/ABU Regional Workshop, 3-6 August 2009, Kuala Lumpur, Malaysia

  26. Current usage • May 2009 Digital Broadcasting ITU/ABU Regional Workshop, 3-6 August 2009, Kuala Lumpur, Malaysia

  27. Current usage • May 2009 Analogue Television ITU/ABU Regional Workshop, 3-6 August 2009, Kuala Lumpur, Malaysia

  28. Provision 5.1.3 of GE06 • Use of a digital Plan entry: • With technical characteristics different from in the Plan • Conformity with the RR • Peak power density in any 4 kHz not to exceed that of the Plan entry • RoP Application of conformity examination procedure ITU/ABU Regional Workshop, 3-6 August 2009, Kuala Lumpur, Malaysia

  29. Regulatory Implementation Aspects • Different transition schedules may hamper introduction of digital broadcasting • Plan entries may not be suitable for immediate implementation in all cases (Plan modification procedure required) • Plan remarks may restrict certain implementations • Implementations under 5.1.3 imposes restrictions • WRC-07 allocation to MS in 790-862 MHz (JTG 5-6) – impact on Plan entries ITU/ABU Regional Workshop, 3-6 August 2009, Kuala Lumpur, Malaysia

  30. Relevant Recommendations, Reports • RECOMMENDATION ITU-R BS.1349 (1998) • Implementation of digital sound broadcasting to vehicular, portable and fixed receivers using terrestrial transmitters in the LF, MF and HF bands • RECOMMENDATION ITU-R BS.1514-1 (2002) • System for digital sound broadcasting in the broadcasting bands below 30 MHz • RECOMMENDATION ITU-R BS.1615 (2003) • “Planning parameters” for digital sound broadcasting at frequencies below 30 MHz • WP 6A (Sub-WG 6A1): DRAFT NEW REPORT ITU-R BS.[DRM] • Planning parameters and coverage for digital DRM broadcasting at frequencies below 30 MHz • RECOMMENDATION ITU-R BS.1660-3 • Technical basis for planning of terrestrial digital sound broadcasting in the VHF band ITU/ABU Regional Workshop, 3-6 August 2009, Kuala Lumpur, Malaysia

  31. Thanks for your attention ! István BOZSÓKI ITU/BDT/TND istvan.bozsoki@itu.int

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