Spectrum allocations have been made and expanded for mobile telecommunications as these have advanced from the limited initial offerings to the dominance they have today. The details of the allocations are provided in the Radio Regulations, and the details of how these allocations are used are described in the specifications for the various access technologies themselves.

For some basic background information and a brief summary of spectrum allocations for IMT, click on Spectrum for IMT.

Spectrum allocation is an inter-governmental matter. The decisions taken by the ITU in this area are treaty-level, hence a great deal of attention, time and effort are allocated to this critical aspect of mobile telecommunications. Access rights to spectrum is a national matter but the value of spectrum as a basic need for mobile telecommunications makes it an extremely valuable commodity and very high prices have been paid for these access rights. For similar, reasons, these rights are strongly protected against infringement (misuse, interference, etc.)

There is no intermediate step as such between a brief overview of IMT spectrum allocations and deep involvement in the specifics. Hence, the reader should anticipate getting deeply involved if assigned to work in this area. It is also recommended that the reader not attempt to grasp the whole but rather to focus on specific areas of direct interest.

The Radio Regulations include extensive detail on spectrum allocations. For IMT, the sections covered by agenda item 1.4 for WRC-07: �to consider frequency-related matters for the future development of IMT‑2000 and systems beyond IMT‑2000, taking into account the results of ITU‑R studies in accordance with Resolution 228 (Rev. WRC‑03)� are relevant.

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