Telecom evolution information generations , Brief introduction of telecommunication , All generations of telecommunicatios , cellular technology

1. EVOLUTION IN WIRELESS
COMMUNICATION

2. CONTENTS
1G technology
2G technology
GPRS (2.5) & EDGE (2.75)
3G technology
4G technology
5G technology

3. 1G TECHNOLOGY
Introduced in 1980
Analog voice
Advance Mobile Phone Service (AMPS)
Nordic Mobile Telephone (NMT)
Total Access Communication System (TACS)

4. 2G TECHNOLOGY
Finland (1991)
Global system for mobile (GSM)
Digital signals
Speed upto 64kbps
 Services like text messages , picture messages & mms etc.

5. 2.5G TECHNOLOGY
2.5G is sometimes called GPRS
Features includes like E-mail, web browsing etc.
Speed: 64-144 kbps
2.75G (EDGE)
 Speed: 135kbps

6. 3G TECHNOLOGY
 Introduced in 2000
 Speed: 144kbps – 2Mbps
 Features includes high data rates , video calling etc.
 UMTS , HSUPA – HSDPA (3.5) , HSPA (3.75)

7. 4G LTE TECHNOLOGY
Introduced in 2010
Speed: 100Mbps - 1Gbps
Also known as MAGIC
 Any kind of service anywhere
 Long term evolution

8. 5G TECHNOLOGY
 Probably in 2020
 Complete wireless communication
 High Speed, High Capacity