mobile generations
TRANSCRIPT
First Generation 1G
First Generation 1GThe First generation of wireless
telecommunication technology is known as 1G was introduced in 1980. The main difference between then existing systems and 1G was invent of cellular technology and hence it is also known as First generation of analog cellular telephone
Frequency division duplex (FDD) schemeall countries should use the same standard and
thesame frequency bands
All the 1G cellular systems were using analog frequency modulation (FM).
The transmission power requirement depends on:-
the transmission bandwidth. the coverage and size of the radios
Main Points1G was Mobile Communication
Introduced in 1980s and completed in early 1990s
AMPS was first launched in 1G mobile system
1G Network use Analog signalIts speed up to 2.4kbps
Second Generation 2G
Second Generation 2G• Second generation wireless telephony
technology (2G) refers to telecom network technologies that were launched on the Global System for Mobile Communications (GSM) standard in 1991 by Radiolinja in Finland
• The 2G systems supported a complete set of standards for all four sectors of the wireless network industry.
Main Points2G enables services such text and
picture messages and multi media messages (MMS)
It provides better quality and capacity
The 2G based on GSM2G Network use Digital signalsIts Data speed was up to 64kbps
Third Generation 3G
Third Generation 3G• The Third Generation 3G is a wireless Mobile
Telecommunications Technology. That based on a set of standards used for Mobile -Devices and Mobile -Telecommunications use services and Networks that comply with the International Mobile Telecommunications-2000 (IMT-2000) specifications by the International Telecommunication Union.
• 3G finds application in wireless voice telephony, Mobile Internet access, fixed wireless Internet access, video calls and mobile TV.
Main Points 3G was introduced in 2000s International Mobile Telecom (IMT-2000)Key features of IMT-2000 includes:-
• High quality; • Small terminal for worldwide use; • Worldwide roaming capability; • Capability for multimedia applications, and a wide range of services and terminals.
Data transmission speed increased from 144kbps-2Mbps
Typically called Smart Phones and features increased its bandwidth and data transfer rates to accommodate web-base applications, Audio and Video files
Providing Faster CommunicationSend/Receive Large Email Messages
Fourth Generation 4G
Fourth Generation 4G• Fourth generation wireless (4G) is an
abbreviation for the fourth generation of cellular wireless standards and replaces the third generation of broadband mobile communications.
• The standards for 4G, set by the radio sector of the International Telecommunication Union (ITU-R), are denoted as International Mobile Telecommunications Advanced (IMT-Advanced).
Main PointsA 4G provides an end-to-end IP solution
where Voice, Date, and streamed Multimedia can be served on an “Any-Time, Any-Where” basis at higher data rates than previous Generations
4G based on LTESpeed data rates from 50-100MbpsWider bandwidthHigh securityend-to-end quality service
Combination of Generations
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