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21.4.2018 : 23:02


Overall scope and objectives

The goal of ITU-R was formulated as: “Our mission is to ensure the rational, equitable, efficient and economical use of the radio-frequency spectrum by all radiocommunication services, including those using satellite orbits, and to carry out studies and approve Recommendations on radiocommunication matters.” The ITU-R does not develop standards, but only recommendations. A possible exception is the special work on IMT, which sets requirements and endorses standards (made by other bodies) as part of the “IMT-family”.

Important outputs from the ITU-R are the so-called “Radio Regulations” (RR), which constitutes global recommendations availability of “services” within the radio spectrum. This emphasis on the term services is important. In ITU-R terminology, a service is e.g. a “mobile service”, a “satellite service” or a “fixed terrestrial service”. It does not describe any specific technology, but only designates frequency bands to service.

The work in ITU-R is organised in study groups (SG), of which there are seven. Major decisions in ITU-R are made on the regular “World Radio Conferences” – WRC. These are global conferences held every two to three years to revise the RR, the international treaty governing the use of the radio-frequency spectrum and the geostationary-satellite and non-geostationary-satellite orbits. Before 1995 it was called WARC - World Administrative Radio Conference, but was renamed to WRC. The last WRC was held in February 2012, the next will be held in 2015.

WRCs are usually held together with the so-called “Radio Assemblies” – RA – which takes decisions on future study items and questions to be addressed. It also revises the working group structures of ITU-R. RA is the policy making assembly, while WRC mainly discusses technical issues. The work on cognitive radio systems (CRS) is done in several study groups in ITU-R as presented below.


Study Group 1 Spectrum Management

Studies on Software Defined Radio (SDR) and Cognitive Radio Systems (CRS) were initiated at the WRC-07 through Resolution 956 (WRC-07): “Regulatory measures and their relevance to enable the introduction of software-defined radio and cognitive radio systems”. After then Study Group 1 (SG 1), Working Part 1B (WP 1B) “Spectrum management methodologies and economic strategies” has studied the item. ITU-R works on a longer timescales than many other bodies, thus the studies initiated ate WRC-07 typically ends in results presented at the next WRC. A  document describing the “Studies on cognitive radio systems (CRS) in relation to Resolution ITU-R 58 within Working Parties 1A and 1B” was issued in June 2012.


Study Group 5 Terrestrial Services

Study Group 5 (SG 5), Working Party 5A (WP 5A) “Land mobile service above 30 MHz*(excluding IMT); wireless access in the fixed service; amateur and amateur-satellite services” is developing a draft new ITU-R report on “Cognitive radio systems in the land mobile service” is being developed including descriptions of applications of cognitive radio systems and possible deployment scenarios. The latest version dates from December 2009. The draft report (Document 5A/411 Annex 21) is a comprehensive document and seems to address all possible aspects of CRS operation from cognitive radio techniques to co-existence issues. The work on CRS in SG 5 is also involving WP 5D “IMT Systems” where the work on another ITU-R report on “Cognitive Radio Systems Specific to IMT Systems” has been produced (Rep. ITU-R M.2242) and published.


Technical relevance to QoSMOS

As for the CEPT/ECC, the work done in ITU-R will form the future regulatory framework for CR operations. All regional and national administrations follow the ITU-R work and will mostly comply with the reports and recommendations issued. Therefore it is relevant to be updated on the ITU-R work.

Status and outlook for QoSMOS

The timescales of the ITU-R is longer than most other bodies, and the WRC-12 was an important event for how CR will be regulated in the future. The outcomes of WRC-12 have shown that the issue is not yet fully exhausted. New studies will continue in the framework of ITU-R the next years. Two partners of QoSMOS (BT and Telenor) are members of the ITU-R and had access to documents and also the possibility of direct participation. They have followed the progress and reported back to the project, so any relevant issues have been taken into account in the QoSMOS design.