1. 3 rd Generation Partnership Project Technical Specification Group Service and Systems Aspects, Digital cellular telecommunication system (Phase 2+); General Packet Radio Service (GPRS); Service description; Stage 2 , Specification TS 03.60, V7.9.0, 1998
2. 3 rd Generation Partnership Project Technical Specification Group Services, Digital cellular telecommunications system (Phase 2+); General Packet Radio Service (GPRS); Service description, Stage 1 , Specification GSM 02.60, V8.1.0, 1999
3. 3 rd Generation Partnership Project Technical Specification Group Service and Systems Aspects. Architectural Requirements for Release 1999 (Release 1999) , Specification TS 23.121, V3.6.0, 2002
4. 3 rd Generation Partnership Project Technical Specification Group Radio Access Network, High Speed Downlink Packet Access (HSDPA); Overall description; Stage 2 (Release 5) , Specification TS25.308, V5.7.0, Release 5, 2004
5. 3 rd Generation Partnership Project Technical Specification Group Radio Access Network, FDD Enhanced Uplink; Overall description; Stage 2 (Release 6) , Specification TS25.309, V6.6.0, 2006