2G to 3G FUNCTIONNAL EVOLUTION
2G: GSM
- Voice FR most of the terminals today
HR-EFR Reduced bandwidth - Better quality voice
- Data 9.6Kb/s SMS, Email…
2.5G:
- HSCDS Multi-slot, point to point communication, Data: 14.4Kbits
- GPRS Packet data, 115Kbit/s
- EDGE Packet data, High velocity 144Kbit/s; low mobility 384Kbit/s
3G W-CDMA:
- Improved coverage, capacity and flexibility over 2G
- A fast and efficient packet-access scheme
- possibility for multiple parallel services on one connection
- Rural access 384Kbit/s, slow motion Indoor up to 2Mbit/s
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