5 Network Architecture
Abschlussbedingungen
5 Network architecture
Tab. 5-1 shows a historical overview of network generations.
Tab. 5-1: Generations in mobile communication systems
| Generation | Features | Examples (German, if not mentioned else) |
|---|---|---|
| forerunner | Analogue speech transmission No handover No roaming | A-network,
switching by hand, 1957-1977 B-network, fully automatic switching, 1972 - 1994 |
| 1st generation |
Analogue network Handover Roaming No or very limited ability to transfer data |
C- network,
1986 – 2001 ACS (Advanced Cellular System) Sweden 1981 NMT (Nordic Mobile Telephone System) Scandinavia 1981 AMPS (Advanced Mobile Phone Service) USA 1983 RC 2000 (Radio Com 2000) France TACS (Total Access Communication Standard) UK 1985 RTMS (Radio Telephone Mobile System) Italy 1985 |
| 2nd generation |
Digital network Speech and data services Handover Roaming |
GSM,
D-networks 1992, E-networks 1994 PDC (Personal Digital Cellular) Japan 1993 D-Amps, Qualcomm-CDMA, CDMAone USA |
| 3rd generation |
Digital
network Speech and data services Handover Roaming Higher data rates |
IMT-2000
family UMTS (Universal Mobile Telecommunications System) 2004 FPLMTS (Future Public Land Mobile Telecommunication Systems) |
| 4th generation |
As 3G with higher data rates | LTE
(long Term Evolution) 2009 LTE-A (LTE Advanced) 2014 |
| 5th generation |
As 4G with higher data rates and lower latency | 5G 2019 |