Preparations for WRC-07

1
Preparations for WRC-07

• Geoff Spells

2
WRC-07 Agenda Item 1.13

• taking into account Resolutions 729 (WRC-97),
  351 (WRC-03) and 544 (WRC-03), to review the
  allocations to all services in the HF bands
  between 4 MHz and 10 MHz, excluding those
  allocations to services in the frequency range 7
  000-7 200 kHz and those bands whose allotment
  plans are in Appendices 25, 26 and 27 and whose
  channelling arrangements are in Appendix 17,
  taking account of the impact of new modulation
  techniques, adaptive control techniques and the
  spectrum requirements for HF broadcasting

3
WRC-07 Agenda Item 1.13Resolutions

• Resolution 729
• Use of frequency adaptive systems in the MF and
  HF bands
• Resolution 351 (COM 4/2 WRC-03)
• Review of the frequency and channel arrangements
  in the MF and HF bands allocated to the maritime
  mobile service with a view to improving
  efficiency by considering the use of new digital
  technology by the maritime mobile service
• Resolution 544 (COM 4/11 WRC-03)
• Identification of additional spectrum for the
  broadcasting service in the HF bands

4
WRC-07 Agenda Item 1.13Appendices frequency
bands 4-10 MHz

• Appendix 25 Maritime Mobile
• 4000-4438, 6200-6525, 8100-8815 kHz
• Appendix 26 Aeronautical Mobile (OR)
• 4700-4750, 5680-5730, 6685-6765, 8965-9040 kHz
• Appendix 27 Aeronautical Mobile (R)
• 4650-4700, 5480-5680, 6525-6685, 8815-8965 kHz
• Appendix 17 Frequencies and channelling
  arrangements for the Maritime Mobile Services

5
WRC-07 Agenda Item 1.13Actual scope

• Review frequencies and channelling arrangements
  for the Maritime Mobile Services in Appendices 25
  and 17
• Consider additional spectrum for broadcasting in
  the bands between 4-10 MHz

6
WRC-07 Agenda Item 1.13Spectrum to be Reviewed

• Taking account exclusions listed, the scope of
  the review is limited to -
• 4438-4650 kHz
• 4750-4995 kHz
• 5060-5250 kHz
• 5730-5900 kHz
• 6765-7000 kHz
• 7450-8100 kHz
• 9040-9400 kHz
• 9900-9995 kHz

7
WRC-07 Agenda Item 1.13Resolution 544

• Noted that ITU-R studies identified preferred
  bands, from which sufficient allocations could be
  made to the broadcasting service were
• 4 500-4 650 kHz
• 5 060-5 250 kHz
• 5 840-5 900 kHz
• 7 450-7 650 kHz
• 9 290-9 400 kHz
• 9 900-9 940 kHz,

8
Spectrum Allocations around 4-10 MHz after WRC-03
9
Issues

• Broadcasting
• Congestion particularly in 4 10 MHz
• Introduction of Digital Modulation
• Perception that HF broadcasting is dying
• Fixed Service
• Loss of more spectrum to other services
• Generic Mobile allocations to permit better
  flexibility
• Difficult to justify need as usage is not
  constant so appears unused
• Mobile Service
• Introduce modern technology
• Change in services
• Amateur Service
• Additional 100 kHz 7200-7300 kHz

10
(No Transcript)
11
Previous reviews of HF bands

• WARC-79 allocated additional 780kHz (net) HF
  spectrum to the broadcasting service at 9MHz and
  above 125kHz being below 10MHz
• WARC-92 allocated additional 790kHz HF
  spectrum to broadcasting service - 200kHz being
  below 10MHz
• WRC-03 - prepared Resolution 544 noting preferred
  bands from which to allocate additional HF
  spectrum in the bands 4-10MHz to the broadcasting
  service

12
Possible Solutions

• More sharing between services ?
• Can any service share with Broadcasting ?
• Time sharing ?
• Geographic sharing ?
• Are there options above 10 MHz which would
  compensate for changes in the 4-10 MHz band ?
• Should occupancy of ALL bands 4-10MHz be reviewed
  as there have been major changes in some services
  currently excluded from consideration ?

13
Scope of work required

• How much additional spectrum required for
  broadcasting service ?
• Which bands preferred for additional spectrum
• What compensation possible for victim services
  to offset reduction in spectrum ?
• Timescale for implementation of changes

14
Groups Involved

• Broadcasting organisations
• EBU, ABU, ASBU, WBU, URTNA
• Regional Groups
• CEPT, APT, CITEL, ARAB
• ITU - R
• WP6E, WP8A, WP9C
• CPM

15
Conclusions

• Experience of WRC-03 shows regional groupings
  more important than individual administrations
• Little change from previous attempts to provide
  more spectrum to broadcasting services around
  4-10MHz
• Little prospect of successful outcome unless all
  parties involved benefit in some way
• Scope of Agenda Item 1.13 too limited and should
  be widened to permit more creative solution