Technologies. [Akronim] 

2G

• GSM - Global System for Mobile Communicaton 
• CDMA - Code Division Multiple Access
• TDMA - Time Division Multiple Access

2.5G

• GPRS - Global Packet Radio Service
• EDGE - Enhanced Data rates for GSM Evolution

3G

• WCDMA - Wide Code Division Multiple Access
• UMTS - Universal Mobile Telecommunication System
• HSPA - High Speed Packet Access
• HSPA+- Evolved High Speed Packet Access

4G

• LTE - Long Term Evolution
• WiMAX - Worldwide Interoperability for Microwave Access