WRC 2019 Agenda Items for WP 4B

This agenda item relates to consideration of the use of the frequency bands 17.7-19.7 GHz (space-to-Earth) and 27.5-29.5 GHz (Earth-to-space) by earth stations in motion (ESIMs) communicating with geostationary space stations in the fixed-satellite service and take appropriate action, in accordance with Resolution 158 [COM6/17] (WRC-15).

This includes:

1. study of technical and operational characteristics,
2. to study sharing and compatibility between ESIMs and current and planned services allocated in these bands and
3. to develop, for different types of ESIMs, technical conditions and regulatory provisions for their operation to ensure protection of and not impose undue constrains on current and planned services.

This agenda item considers the development of a regulatory framework for non-GSO FSS satellite systems that may operate in the frequency bands 37.5-39.5 GHz (space-to-Earth), 39.5-42.5 GHz (space-to-Earth), 47.2-50.2 GHz (Earth-to-space) and 50.4-51.4 GHz (Earth-to-space), in accordance with Resolution 159 [COM6/18] (WRC-15).

This includes studies of:

1. technical and operational issues and regulatory provisions to protect existing GSO networks in the FSS, MSS and BSS,
2. these studies shall focus exclusively on development of EPFD limits,
3. studies and development of sharing conditions between non-GSO systems in these bands,
4. studies relating to possible revision to Resolution 750 (Rev. WRC-15) to ensure protection of EESS (passive) from aggregate non-GSO FSS interference,
5. studies to protect the radio astronomy service in relevant bands from aggregate non-GSO FSS interference.

This agenda item relates to study of the spectrum needs for telemetry, tracking and command in the space operation service for non-GSO satellites with short duration missions, to assess the suitability of existing allocations to the space operation service and, if necessary, to consider new allocations, in accordance with Resolution 659 [COM6/19] (WRC-15).

The Resolution notes that short duration missions typically extend for less than 3 years.

The AI includes:

1. study of the spectrum requirements for TT&C in the space operation service for short duration missions,
2. to assess the suitability of existing space operation service allocations below 1 GHz taking into account current use and
3. if existing allocations are insufficient, conduct sharing and compatibility studies including mitigation techniques to protect incumbent services, both in-band and in adjacent bands, in order to consider possible new allocations or an upgrade to an existing allocations to the space operation service within 150.05 - 174 MHz and 400.15 - 420 MHz.

This agenda item relates to consideration of spectrum needs and regulatory provisions for the introduction and use of the Global Aeronautical Distress and Safety System (GADSS), in accordance with Resolution 426 [COM6/11] (WRC-15).

GADSS is intended to address the timely identification and location of an aircraft during all phases of flight as well as distress and emergency situations and to use existing and new applications to support search and rescue and flight data retrieval.

In particular:

1. to study terrestrial and satellite components including
   1. data requirements, radiocommunication requirements relating to safety of life applications, performance criteria
   2. existing allocations to determine whether additional spectrum is required
   3. studies on sharing and/or compatibility with existing services and
2. to study existing regulatory provisions to determine whether additional regulatory measures might be necessary.

This agenda item relates to taking necessary actions, as appropriate, to facilitate global or regional harmonized frequency bands to support railway radiocommunication systems between train and trackside within existing mobile service allocations, in accordance with Resolution 236 [COM6/12] (WRC-15).

The Resolution notes that Study Group 5 is studying relevant technical and operational characteristics for railway radiocommunication systems.

It also emphasizes that the provisions of Nos. 1.59 and 4.10 (relating to safety services) do not apply for railway radiocommunication systems.

The ITU-R is invited to study the spectrum needs, technical and operational characteristics and implementation of railway radiocommunication systems between train and trackside.

This agenda item relates to consideration of possible global or regional harmonized frequency bands, to the maximum extent possible, for the implementation of evolving Intelligent Transport Systems (ITS) under existing mobile-service allocations, in accordance with Resolution 237 [COM6/13] (WRC-15).

ITS systems are communication applications for the purpose of improving traffic management and assisting safe driving and the Resolution notes use of bands around 5.8 GHz for short range applications.

It also emphasizes that the provisions of Nos. 1.59 and 4.10 (relating to safety services) do not apply for railway radiocommunication systems.

The ITU-R is invited to carry out studies on technical and operational aspects of evolving ITS implementation using existing mobile-service allocations.

This agenda item relates to consideration of identification of frequency bands for the future development of International Mobile Telecommunications (IMT), including possible additional allocations to the mobile service on a primary basis, in accordance with Resolution 238 [COM6/20] (WRC-15). It calls for studies on frequency-related matters for IMT identification including possible additional allocations to the mobile services on a primary basis in portion(s) of the frequency range between 24.25 and 86 GHz.

The ITU-R is invited to study:

1. spectrum needs of IMT taking into account factors such as technical and operational parameters of IMT, deployment scenarios and time frames,
2. appropriate sharing and compatibility studies taking into account the protection of primary services, including adjacent bands where appropriate.

This agenda item relates to studies relating to spectrum needs and possible allocation of the frequency band 51.4-52.4 GHz to the fixed-satellite service (Earth-to-space).

The Resolution invites the ITU-R to:

1. study the additional spectrum needs for development of the FSS taking into account bands currently allocated to that service, the conditions of their use and the possible optimization of these frequencies to increase spectrum efficiency,
2. sharing and compatibility studies with existing services on a primary and secondary basis including as appropriate adjacent bands to determine the suitability of new primary allocations for FSS at 51.4 - 52.4 GHz (E-s) limited to FSS feeder links for GSO use and associated regulations,
3. studies towards possible revision of Resolution 750 (Rev. WRC-12) so that systems in the passive band 52.6 - 54.25 GHz are protected and
4. studies regarding the protection of the radio astronomy service and including any appropriate regulatory measures.