3GPP - Specification Groups

Specification Groups

The 3GPP specification work is done in Technical Specification Groups (TSGs) and Working Groups (WGs).

There are four Technical Specifications Groups:

• GERAN (GSM/EDGE Radio Access Network): GERAN specifies the GSM radio technology, including GPRS and EDGE. It is composed of three working groups.
• RAN (Radio Access Network): RAN specifies the UTRAN and the E-UTRAN. It is composed of five working groups.
• SA (Service and System Aspects): SA specifies the service requirements and the overall architecture of the 3GPP system. It is also responsible for the coordination of the project. SA is composed of five working groups.
• CT (Core Network and Terminals): CT specifies the core network and terminal parts of 3GPP. It includes the core network - terminal layer 3 protocols. It is composed of four working groups.

The 3GPP structure also includes a Project Coordination Group, which is the highest decision-making body. Its missions include the management of overall timeframe and work progress.