WRC 2023 Agenda Item Details

Agenda Item: Agenda Item 1.5
Resolution(s): Resolution 235 (WRC-15)
Description of work:

This agenda item is to review the spectrum use and needs of existing services in the frequency band 470 - 960 MHz in Region 1 and consider possible regulatory actions in the frequency band 470 - 694 MHz in Region 1 on the basis of the review in accordance with Resolution 235

The ITU-R is invited to:

  1. review the spectrum use and study the spectrum needs of existing services within the frequency band 470 - 960 MHz in Region 1, in particular the spectrum needs for broadcasting and mobile (excluding aeronautical)
  2. carry out sharing and compatibility studies, as appropriate, in the frequency band 470 - 694 MHz between broadcasting and mobile (excluding aeronautical)
  3. sharing and compatibility studies in order to provide relevant protection of systems of other existing services
Comments: Frequency bands under 1 GHz could be used to provide mobile coverage for rural areas that can otherwise experience lower service levels. However there remains a need to provide terrestrial broadcast TV services (with potentially a sovereign obligation) and protect other users of the band. Note that Resolution 235 was not updated at WRC-19. The terms and references of TG 6/1 are given in Annex 9 of CA/251 with the expectation that it will have 5 or 6 meetings within the next WRC cycle.
Lead Working Party(s): TG 6/1
Involved Working Parties: WP 3K, WP 3M, WP 5A, WP 5B, WP 5C, WP 5D, WP 6A
How Visualyse products can help: Visualyse Professional can model sharing between mobile including IMT services and other services including broadcasting. This analysis can be static, area, dynamic or Monte Carlo including adjacent band studies. A range of propagation models could be used including point to area models such as P.1546 and P.1812 plus point to point models such as P.452 and P.2001. Mobile wanted links can also be modelled using generic dual or triple slope including Hata / COST 231. Visualyse Professional can also model the beam-forming antenna gain pattern in Recommendation ITU-R M.2101. The analysis can take into account terrain and clutter or use a smooth Earth approach.
How Transfinite consultants can help: We can undertake studies including analysis of sharing between the services covered by this agenda item, and identify suitable system characteristics and sharing criteria, and provide contributions and representation at ITU-R Working Parties. Using our in house Visualyse Professional we can quickly model a very wide range of systems, services and scenarios. We have experience in modelling mobile networks in these bands from our work supporting Ofcom.
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