WRC 2019 Agenda Item Details

Agenda Item: Agenda Item 1.9.1
Resolution(s): Resolution 362 (Rev.WRC-15)
Description of work:

This agenda item considers, based on the results of ITU-R studies: regulatory actions within the frequency band 156-162.05 MHz for autonomous maritime radio devices to protect the GMDSS and automatic identifications system (AIS), in accordance with Resolution 362 [COM6/10] (WRC-15).

This includes:

  1. studies into the spectrum needs and technical and operational characteristics of autonomous maritime radio devices,
  2. to conduct studies to categorize the various device types,
  3. to conduct sharing and compatibility studies to ensure that no undue constraints are placed on the GMDSS and AIS and
  4. from 1-3 undertake studies to determine potential regulatory actions and appropriate frequencies for autonomous maritime radio devices.
Lead Working Party(s): WP 5B
Involved Working Parties: WP 1B, WP 3M, WP 4C, WP 5A, WP 5C
How Visualyse products can help: Visualyse Professional can model maritime services and analysis can be undertaken at a range of frequencies including VHF band using static, dynamic, area or Monte Carlo methodologies for both co-frequency and non-co-frequency scenarios. Ships can be given sailed along shipping routes or randomized within a zone to calculate either likelihood of interference or interference zones. Detailed models can include traffic and transmit / receive masks for non-co-frequency analysis. Propagation models such as P.1546, P.1812 and P.2001 can be used which take account of propagation over water bodies.
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 criterias, 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.
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