IMT-2000 Standard

Because of these requirements, the IMT-2000 standardisation was developed. The aim of IMT-2000 is to create a radio interface that would maximise the use of the frequency, ie, increase its efficiency. For paired frequency bands, the WCDMA interface was used, for unpaired spectrum, TDCDMA was used. CMDA2000 is used to support IS-95 evolution.

To handle the above, the UMTS transport network is used. This is because of its stability, speech delay sensitivity, bandwidth efficiency, quality of service, and the high capacity of concurrent users. ATM (Asynchronous Transfer Mode As used by DSL broadband) is used between the UTRAN and the core network; it can also be used within the core too.

There will also be many new technologies integrated into the standard, such as Bluetooth, and other close proximity standards. As well as several different operating systems used in mobiles. Full internet access will pass down to mobiles, helped by WAP and XML. 3G has started the standardisation of a large amount of technologies.