WRC-27の議題 - JI1DWBの日記

WRC-23では、次回WRC-27の議題が決議されます。その決議が以下のRESOLUTION COM6/23 (WRC-23)です。COM6/23は暫定番号でこの後正式な番号がふられます。

少なくとも日本で使用されているアマチュア無線用周波数帯に直接影響がありそうな議題はないようです。WRC-27の議題はITU理事会で正式に決定されます。

Provisional Final Acts
WRC-23 – World Radiocommunication Conferences (WRC) (itu.int)

上記の602ページです。

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ADD

RESOLUTION COM6/23 (WRC-23)

Agenda for the 2027 world radiocommunication conferenceThe World

Radiocommunication Conference (Dubai, 2023),

considering
a) that, in accordance with No. 118 of the ITU Convention, the general scope of the
agenda for a world radiocommunication conference (WRC) should be established four to six years in advance and that a final agenda shall be established by the ITU Council two years before the conference;
b) Article 13 of the ITU Constitution, relating to the competence and scheduling of WRCs, and Article 7 of the Convention, relating to their agendas;
c) the relevant resolutions and recommendations of previous world administrative radio
conferences (WARCs) and WRCs,

recognizing
a) that this conference has identified a number of urgent issues requiring further
examination by WRC-27;
b) that in preparing this agenda, some items proposed by administrations could not be
included and have had to be deferred to future conference agendas,

resolves
to recommend to the Council that a WRC be held in 2027 for a period of four weeks, with the following agenda:

1 on the basis of proposals from administrations, taking account of the results of WRC-23 and the Report of the Conference Preparatory Meeting, and with due regard to the requirements of existing and future services in the frequency bands under consideration, to consider and take appropriate action in respect of the following items:
1.1 to consider the technical and operational conditions for the use of the frequency bands 47.2-50.2 GHz and 50.4-51.4 GHz (Earth-to-space), or parts thereof, by aeronautical and maritime earth stations in motion communicating with space stations in the fixed-satellite service and develop regulatory measures, as appropriate, to facilitate the use of the frequency bands 47.2-50.2 GHz and 50.4-51.4 GHz (Earth-to-space), or parts thereof, by aeronautical and maritime earth stations in motion communicating with geostationary space stations and non-geostationary space stations in the fixed-satellite service, in accordance with Resolution 176 (Rev.WRC-23);
1.2 to consider possible revisions of sharing conditions in the frequency band 13.75-14 GHz to allow the use of uplink fixed-satellite service earth stations with smaller antenna sizes, in accordance with Resolution COM6/1 (WRC-23);
1.3 to consider studies relating to the use of the frequency band 51.4-52.4 GHz to enable use by gateway earth stations transmitting to non-geostationary-satellite orbit systems in the fixedsatellite service (Earth-to-space), in accordance with Resolution COM6/3 (WRC-23);
1.4 to consider a possible new primary allocation to the fixed-satellite service (space-toEarth) in the frequency band 17.3-17.7 GHz and a possible new primary allocation to the broadcasting-satellite service (space-to-Earth) in the frequency band 17.3-17.8 GHz in Region 3, while ensuring the protection of existing primary allocations in the same and adjacent frequency bands, and to consider equivalent power flux-density limits to be applied in Regions 1 and 3 to nongeostationary-satellite systems in the fixed-satellite service (space-to-Earth) in the frequency band 17.3-17.7 GHz, in accordance with Resolution COM6/24 (WRC-23);
1.5 to consider regulatory measures, and implementability thereof, to limit the unauthorized operations of non-geostationary-satellite orbit earth stations in the fixed-satellite and mobilesatellite services and associated issues related to the service area of non-geostationary-satellite orbit satellite systems in the fixed-satellite and mobile-satellite services, in accordance with Resolution COM6/6 (WRC-23);
1.6 to consider technical and regulatory measures for fixed-satellite service satellite
networks/systems in the frequency bands 37.5-42.5 GHz (space-to-Earth), 42.5-43.5 GHz (Earth-tospace), 47.2-50.2 GHz (Earth-to-space) and 50.4-51.4 GHz (Earth-to-space) for equitable access to these frequency bands, in accordance with Resolution COM6/7 (WRC-23);
1.7 to consider studies on sharing and compatibility and develop technical conditions for the use of International Mobile Telecommunications (IMT) in the frequency bands 4 400-4 800 MHz, 7 125-8 400 MHz (or parts thereof), and 14.8-15.35 GHz taking into account existing primary services operating in these, and adjacent, frequency bands, in accordance with Resolution COM6/26 (WRC-23);
1.8 to consider possible additional spectrum allocations to the radiolocation service on a primary basis in the frequency range 231.5-275 GHz and possible new identifications for radiolocation service applications in the frequency bands within the frequency range 275-700 GHz for millimetric and sub-millimetric wave imaging systems, in accordance with Resolution 663 (Rev.WRC-23);
1.9 to consider appropriate regulatory actions to update Appendix 26 to the Radio
Regulations in support of aeronautical mobile (OR) high frequency modernization, in accordance with Resolution COM6/2 (WRC-23);
1.10 to consider developing power flux-density and equivalent isotropically radiated power limits for inclusion in Article 21 of the Radio Regulations for the fixed-satellite, mobile-satellite and broadcasting-satellite services to protect the fixed and mobile services in the frequency bands 71-76 GHz and 81-86 GHz, in accordance with Resolution 775 (Rev.WRC-23);

2 to examine the revised ITU Radiocommunication Sector Recommendations
incorporated by reference in the Radio Regulations communicated by the Radiocommunication Assembly, in accordance with the further resolves of Resolution 27 (Rev.WRC-19), and to decide whether or not to update the corresponding references in the Radio Regulations, in accordance with the principles contained in the resolves of that Resolution;
3 to consider such consequential changes and amendments to the Radio Regulations as may be necessitated by the decisions of the conference;
4 in accordance with Resolution 95 (Rev.WRC-19), to review the resolutions and
recommendations of previous conferences with a view to their possible revision, replacement or abrogation;
5 to review, and take appropriate action on, the Report from the Radiocommunication
Assembly submitted in accordance with Nos. 135 and 136 of the ITU Convention;
6 to identify those items requiring urgent action by the radiocommunication study groups in preparation for the next world radiocommunication conference;
7 to consider possible changes, in response to Resolution 86 (Rev. Marrakesh, 2002) of
the Plenipotentiary Conference, on advance publication, coordination, notification and recording procedures for frequency assignments pertaining to satellite networks, in accordance with Resolution 86 (Rev.WRC-07), in order to facilitate the rational, efficient and economical use of radio frequencies and any associated orbits, including the geostationary-satellite orbit;
8 to consider and take appropriate action on requests from administrations to delete their country footnotes or to have their country name deleted from footnotes, if no longer required, taking into account Resolution 26 (Rev.WRC-23);

9 to consider and approve the Report of the Director of the Radiocommunication Bureau, in accordance with Article 7 of the ITU Convention:
9.1 on the activities of the ITU Radiocommunication Sector since WRC-23(1);
9.2 on any difficulties or inconsistencies encountered in the application of the Radio
Regulations(2); and
9.3 on action in response to Resolution 80 (Rev.WRC-07);
10 to recommend to the ITU Council items for inclusion in the agenda for the next world
radiocommunication conference, and items for the preliminary agenda of future conferences, in accordance with Article 7 of the ITU Convention and Resolution 804 (Rev.WRC-23),

further resolves

to activate the Conference Preparatory Meeting (CPM),

invites the ITU Council

to finalize the agenda and arrange for the convening of WRC-27, and to initiate as soon as possible the necessary consultations with Member States,

instructs the Director of the Radiocommunication Bureau

1 to make the necessary arrangements to convene meetings of the CPM and to prepare a report to WRC-27;
2 to submit a draft report on any difficulties or inconsistencies encountered in the
application of the Radio Regulations referred in agenda item 9.2 to the second session of the CPM and to submit the final report at least five months before the next WRC,

instructs the Secretary-General

to communicate this Resolution to international and regional organizations concerned.

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(1) This WRC’s standing agenda sub-item is strictly limited to the Report of the Director on ITU-R activities since the last WRC; and any topics outside 1.1-1.19 as listed above shall be strictly avoided, particularly those topics which require any changes/amendments to the Radio Regulations.
(2) This WRC’s standing agenda sub-item is strictly limited to the Report of the Director on any difficulties or inconsistencies encountered in the application of the Radio Regulations and the comments from administrations. Administrations are invited to inform the Director of the Radiocommunication Bureau of any difficulties or inconsistencies encountered in the Radio Regulations.