Third Generation Partnership Project 2 (3GPP) was formed for technical development of cdma2000 technology which is a member of IMT-2000 family.

Definition, evolution, and maintenance of overall architecture.

Network Management and Security Aspects.

Development of service capabilities and service architecture forĬellular, fixed and cordless applications.

Definition of services and feature requirements.

Conformance test specifications of terminals, including radio aspectsģGPP Services and System Aspects group is responsible of:.

Model/framework for terminal interfaces and services (application) execution.

Core network aspects of the lu interface and Operation and Maintenance requirements.

Definition of interworking functions between the core network and external networks.

Core network signalling between the core network nodes.

Mobility management, call connection control signalling between the user equipment and the core network.

Specifications for radio performance aspects from the system point of viewģGPP Core Network group is responsible of:.

Conformance test specification for testing of radio aspects of base stations.

UTRAN Operation and Maintenance requirements.

Radio Layer 1, 2 and 3 RR specification.

3GPP has five main UMTS standardisation areas: Radio Access Network, Core Network, Terminals, Services and System Aspects and GERAN.ģGPP Radio Access group is responsible of:

In 1998 Third Generation Partnership Project (3GPP) was formed to continue the technical specification work. In Europe European Telecommunications Standards Institute (ETSI) was responsible of UMTS standardisation process. International Telecommunication Union (ITU) started the process of defining the standard for third generation systems, referred to as International Mobile Telecommunications 2000 (IMT-2000). The Universal Mobile Telecommunication SystemģG Systems are intended to provide a global mobility with wide range of services including telephony, paging, messaging, Internet and broadband data. Mobiles Bluetooth HomeRF/SWAP WAP GPRS, HSCSD EDGE CAMEL, IN

WCDMA (UMTS) TDCDMA CDMA2000 WCDMA (DoCoMo) TD-SCDMA

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