WRC 2023 Agenda Items for WP 4B

This agenda item considers identification of frequency bands 3 300 - 3 400 MHz (Region 2 and amend footnote in Region 1), 3 600 - 3 800 MHz (Region 2), 6 425 - 7 025 MHz (Region 1), 7 025 - 7 125 MHz (globally) and 10.0 - 10.5 GHz (Region 2) for IMT including possible allocations to the mobile service on a primary basis.

The ITU-R is invited to study:

1. technical, operational and regulatory issues pertaining to possible use of the terrestrial component of IMT in the bands listed taking into account evolving needs, technical and operational characteristics of terrestrial IMT systems, evolution of IMT, deployment scenarios, needs of developing countries and time-frame in which spectrum would be needed
2. sharing and compatibility studies (including with services in adjacent bands where appropriate) in order to protect services with an existing primary allocation, without imposing additional regulatory or technical constraints, and also, as appropriate, on services in adjacent bands

This agenda item is to consider appropriate regulations with a view to reviewing and if necessary revising Resolution 155 (Rec. WRC-19) to accommodate the use of fixed-satellite service (FSS) networks by control and non-payload communications of unmanned aircraft systems

The ITU-R is invited to study:

1. the technical, operational and regulatory aspects in relation to the implementation of Resolution 155 (Rev. WRC-19) taking into account the progress obtained by ICAO in the completion of SARPs on the use of FSS for the UAS CNPC links.
2. to review No. 5.484B and Resolution 155 (Rev. WRC-19) taking into account the results of the above studies.

This agenda item is to determine and carry out, on the basis of the ITU-R Studies in accordance with Resolution COM6/14 (WRC-19), the appropriate regulatory actions for the provision of inter-satellite links in specific frequency bands, or portions thereof, by adding an inter-satellite service allocation where appropriate. The ITU-R is invited to:

1. develop the technical and operational characteristics of different types of space stations that plan satellite-to-satellite transmissions in the frequency bands 11.7-12.7 GHz, 18.1-18.6 GHz, 18.8-20.2 GHz and 27.5 - 30 GHz
2. study the technical and operational characteristics, including spectrum requirements, offaxis EIRP values and out-of-band emission limits, for transmissions between space stations in the frequency bands 11.7-12.7 GHz, 18.1-18.6 GHz, 18.8-20.2 GHz and 27.5 - 30 GHz
3. study sharing and compatibility between satellite-to-satellite links, intended to operate between space stations in the frequency bands 11.7-12.7 GHz, 18.1-18.6 GHz, 18.8-20.2 GHz and 27.5 - 30 GHz, and current and planned stations of the FSS and other existing services allocated in the same frequency bands and adjacent bands including passive services, with a view to ensure protection of primary services
4. to develop, for different types of space stations, the technical and regulatory provisions for satellite-to-satellite operations in the frequency bands 11.7-12.7 GHz, 18.1-18.6 GHz, 18.8-20.2 GHz and 27.5 - 30 GHz or portions thereof, including new ISS allocations, as appropriate, taking into account the results of studies above

WRC-23 is invited to review the results of these studies and take necessary actions, as appropriate

This agenda item is to consider studies relating to spectrum needs and potential new allocations to the mobile-satellite service for future development of narrowband mobile-satellite systems. The ITU-R is invited to:

1. conduct studies on spectrum and operational requirements as well as system characteristics of low-data rate systems for the collection of data from and management of terrestrial devices in the MSS as described in the Resolution considering a) and limited to the basic characteristics in recognising c)
2. to conduct sharing and compatibility studies with existing primary services to determine the suitability of new allocations to the MSS with a view to protecting the primary services in the following frequency bands and adjacent frequency bands: 1 695 - 1 710 MHz in Region 2, 2 010 - 2 025 MHz in Region 1, 3 300 - 3 315 MHz, 3 385 - 3 400 MHz in Region 2
3. to consider possible new primary or secondary allocations, with the necessary technical limitations, taking into account the characteristics described in recognising c) to the MSS for non-GSO satellites operating low-data rate systems for the collection of data from, and management of, terrestrial devices based on the result of sharing and compatibility studies while ensuring protection of existing primary services in those frequency bands, and adjacent frequency bands, without causing undue constraints on their further developments

WRC-23 is invited to determine, on the basis of the studies conducted under the resolves to invite the ITU-R above, appropriate regulatory action