UMTS Standardization

1) UMTS Release 99 (2000)

Based on GSM Based on GSM
Backward compatible with GSM
Interoperation between UMTS and GSM
UMTS FDD (W-CDMA)
UMTS Release 4 (2001)
Separation of user data flows and control mechanisms
UMTS TDD Time Division CDMA (TD-CDMA)
High data rate with UMTS TDD 3 84 High data rate with UMTS TDD 3.84 Mchips/s
Narrowband TDD with 1.28 Mchips/s
Position location functionality

2) UMTS Release 5 (2002)

End-to-end packet switching based on IP (IMS)
End packet switching based on IP (IMS)
Downlink data rate of over 10 Mbps (HSDPA)
GSM EDGE Radio Access Network (GERAN)
UMTS Release 6 (2004) IMS "Phase 2" (IMS messaging, conferencing and Group Management)
High Speed Uplink (HSUPA)
Multimedia Broadcast / Multicast Service (MBMS)

3) UMTS Release 7 (2007)

Enhanced Uplink other spectrum Enhanced Uplink, other spectrum
Multiple Input Multiple Output antennas (MIMO)
IMS Emergency Call handling
3GPP Release 8 (2009)
3GPP Long Term Evolution (LTE)
Successor to UMTS
Full ITU-R 4G requirement compliant (peak download rate 1Gbit/s)
Possible technologies: Scalable spectrum 20-100Mhz, Cognitive Radiio