Summary

This Recommendation sets out the "family of systems" concept which provides the basis for the development of IMT‑2000 standards including the set of signalling requirements for IMT‑2000. It also contains a description of the interfaces in the system which may need to be standardized by the ITU. It has been agreed that the development of IMT‑2000 requirements will be performed in Capability Sets and this Recommendation sets out the contents of Capability Set 1 and the vision for subsequent Capability Sets.