WRC 2027 Agenda Items for WP 6A

This agenda item is to consider technical and regulatory measures for FSS networks/systems in the 37.5 - 42.5 GHz (space-to-Earth), 42.5-43.5 GHz, 47.2-50.2 GHz and 50.4 0 51.4 GHz (Earth-to-space) for equitable access to these frequency bands

The ITU-R is invited to study the technical and regulatory measures for FSS satellite networks/systems in these bands or portions of for equitable access while ensuring the protection of existing primary services in these bands and in adjacent bands taking into account the needs of developing countries:

1. without adversely affecting those services, specifically the operation of satellite networks and systems in those bands
2. without changing measure to protect terrestrial services from unacceptable interference

WRC-27 is invited to consider the results of the above studies and take necessary actions, as appropriate.

This agenda item is to review Appendix 26 of the Radio Regulations in support of aeronautical mobile (OR) high frequency modernization.

The ITU-R is invited to study:

1. the introduction of new technologies that enhance performance, including but not limited to, new classes of emission and wideband systems
2. the definition of the relevant technical and operational characteristics and conduct sharing and compatibility studies with existing aeronautical mobile (OR) service systems and with other incumbent services that are allocated on a primary basis in the same or adjacent bands
3. identification of any potential modifications to Appendix 26 without modifying the existing area allotments while taking into account that the current use of the narrow band systems shall remain unchanged and shall not be impacted nor precluded by any revision to Appendix 26.

WRC-27 is invited to consider the results of the above studies and take necessary actions, as appropriate.

This agenda item is to consider PFD and EIRP limits for inclusion in Article 21 for the FSS, MSS and BSS to protect fixed and mobile services in the frequency bands 71 - 76 GHz and 81 - 86 GHz.

The ITU-R is invited to study PFD and EIRP limits to be included in Article 21 for FSS, MSS and BSS satellite services to protect current and planned fixed and mobile services in these frequency bands.

WRC-27 is invited to consider the results of the above studies and take necessary actions, as appropriate.

This agenda item is to consider the technical and operational issues and regulatory provisions for space-to-space links among GSO and non-GSO satellites in frequency bands 1 518 - 1 544 MHz, 1 545 - 1 559 MHz, 1 610 - 1 645.5 MHz, 1 646.5 - 1 660 MHz, 1 670 - 1 675 MHz and 2 483.5 - 2 500 MHz allocated to the MSS. The ITU-R is invited to:

1. study the technical and operational characteristics of different types of non-GSO space stations that operate or plan to operate space-to-space links with GSO networks in the frequency bands 1 626.5 - 1 645.5 MHz and 1 646.5 - 1 660 MHz (Earth-to-space) and 1 525 - 1 544 MHz and 1 545 - 1 559 MHz (space-to-Earth)
2. study the technical and operational characteristics of different types of non-GSO space stations that operate or plan to operate space-to-space links with non-GSO systems or GSO networks in the frequency bands 1 610 - 1 626.5 MHz and 1 670 - 1 675 MHz (Earth-to-space) and 1 518 - 1 525 MHz, 1 613.8 - 1 626.5 and 2 483.5 - 2 500 MHz (space-to-Earth)
3. study sharing and compatibility between space-to-space links in the cases described above with current and planned stations of the MSS, other existing primary services allocated in the same frequency bands, other existing primary services allocated in adjacent frequency bands and existing passive services allocated in adjacent frequency bands
4. develop technical conditions and regulatory provisions for the operation of space-to-space links in these bands including MSS (space-to-space) allocations of the additional of inter-satellite service (ISS)

Space-to-space links should only operate in the same direction as existing MSS allocations.

WRC-27 is invited to consider the results of the above studies and take necessary actions, as appropriate.

This agenda item is to consider studies of a possible new allocation to the MSS for direct connectivity between space stations and IMT user equipment to complement terrestrial IMT network coverage. The ITU-R is invited to:

1. study possible allocations to the MSS in the frequency range between 694/698 MHz and 2.7 GHz taking into account IMT frequency arrangements addressed in the most recent version of Recommendation ITU-R M.1036.
2. study spectrum requirements and on technical, operational and regulatory matters related to the implementation of MSS for direct connectivity to the IMT user equipment to complement the terrestrial IMT network coverage
3. study sharing and compatibility between incumbent service, including in adjacent frequency bands, to ensure the their protection
4. study possible technical and operational measures to ensure that stations in the MSS do not cause harmful interference or claim protection from, stations operating in the mobile service

WRC-27 is invited to consider the results of the above studies and take necessary actions, as appropriate.

This agenda item is to consider regulatory provisions for receive-only space weather sensors and their protection in the Radio Regulations, taking into account the results of ITU Radiocommunication Sector studies, in accordance with Resolution 682. The ITU-R is invited to:

1. study spectrum needs and appropriate protection criteria for receive-only space weather sensors, as well as system characteristics, as appropriate
2. sharing and compatibility studies pertaining to potential new primary allocations to MetAids (space weather) in the frequency bands 27.5 - 28.0 MHz, 29.7 - 30.2 MHz, 32.3 - 32.6 MHz, 37.5 - 38.325 MHz, 73.0 - 74.6 MHz and 608 - 614 MHz for receive only sensors
3. study possible regulatory provisions in the Radio Regulations to accommodate the possibility for an administration that desires to notify a receive-only space weather sensor station to be included in the MIFR

Any possible new primary MetAids (space weather) allocations shall not claim protection from, nor constrain the future development of, incumbent services in these frequency bands or adjacent frequency bands

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