2g vs 3g vs 4g - technology
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PRESENTATION
ON
2G vs 3G vs 4G
SUBJECT: IT FOR MANAGEMENT
BY
SMITHA DABBA02
YOGESH NAIR25
SHEETAL PAWAR
31
PRAVIN KHAIRNAR 20
HARSHAD WADIVKAR 51
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INTRODUCTION
TELECOMMUNICATION
EVOLUTION OF MOBILE MARKET
THE BASIS OF CELLULAR TECHNOLOGY &THE USE OF RADIO SPECTRUM
BANDWIDTH
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MOBILE TELEPHONE SWITCHING OFFICE
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ACCESS TECHNOLOGIES (FDMA, TDMA, CDMA)
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1G
Introduced in Japan in 1979.
The first commercially automated cellular network
Radio signals are analog & modulated to higher frequency,
typically 150 MHz and up.
Features
Limitations
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2G
Launched in 1991 on the GSM standard that uses TDMA.
Uses digital signal
Spectrum:- 800/900 MHz to 1800/1900 MHz
Advantages
Disadvantages
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2.5G
Informal term unlike 2G or 3G
Combines 2g cellular system and General Packet Radio
Services (GPRS)
GPRS has data transmission rates of 28kbps or higher
CDMA200 1x-RTT, EDGE and EGPRS are 2.5gtechnology
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2.5G
Data transmission rates of 144kbps or higher
Slower network speeds than 3G
2.5g uses packet-switching as well as circuit switching
2.5g network can be used on a per-transaction basis ratherthan per-minute-of-use basis.
2.5g supports WAP, MMS, SMS, Mobile games etc.
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CIRCUIT-SWITCHING
Physical path is obtained and dedicated to a singleconnection between two end-points in the network
Ordinary voice phone is circuit-switched
No one else can use the physical lines during that period
It is more reliable but expensive compared to packet-switching
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PACKETSWITCHING
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2.75G (EDGE)
What is EDGE Technology?
Extended version of GSM.
Termed as IMT-SC or Single carrier
History of EDGE
Launched in 2003 in US.
Three time faster than wired dial up modem.
Global mobile data services.
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EDGE TECHNOLOGY
Frequency capability and performance of Edge is more than2G, GSM technology
It helps to connect to the internet
Edge technology supports the packet switching system
EDGE technology has its edge because it can make use ofboth switch circuit technology and packet circuit technology.
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DIFFERENCE BETWEEN GSM & EDGE
GSM
Global System for Mobile
It requires any supplementary
hardware and software
Normal Speed
EDGE
Enhance date rate for GSMevolution
Does not require anysupplementary hardware andsoftware
Provides 3 times faster speedthan GSM
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ADVANTAGES OF EDGE
This triples the gross data rate for GSM Technology.
The access to the internet and wireless access points is easy.
EDGE technology is the only technology that has provided the
MoldCell user to make use of most advance multimedia
services.
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3G
What is 3G and its characteristics
Frequency Bands and Bandwidth.
3G Pricing
Companies providing 3G network.
Issues
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3G AND CHARACTERISTICS
Gateway
IMT-2000
Fast Transfer rate
Network authentication
Compatibility
Uses TDMA and CDMA
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FREQUENCY BAND AND BANDWIDTH
TRAI recommended 3 sets of freq bands: 450 MHz
800 MHz
2.1 GHz
Bandwidth required is 15-20MHz
3G PRICING
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3G PRICING
Base price of Auctioning the Radio Frequency was 1050
crores.
Category A80 crores
(Mumbai and Delhi)
Category B50 crores
(Kolkata and Chennai)
Other cities- 15 crores
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COMPANIES PROVIDING 3G NETWORKS
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4G
4G refers to 4th Generation of Cellular wireless tech.
Specified In 2009 by IMT-Advanced
Speeds ranging from Min 100Mbps upto 1Gbps
Following are 2 eg. Many others still developing WiMAX
LTE (Long term Evolution)
Works on OFDM (Orthogonal Frequency Division
Multiplexing)
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4G USES AND APPLICATION
High Network capacity
Seamless Connectivity, Global roaming
High Quality Service eg. HD live Gaming, live audio,
HDTV video ,Mobile TV etc. All IP, packet Switched Network
User Behavior Based data
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WIMAX (WORLDWIDE INTEROPERABILITY FOR
MICROWAVE ACCESS)
IP based wireless Broadband over long distance Alternative to Cable modem and DSL
Connects Wifi to other networks like internet.
VoIP, IPTV Service(Triple Play)
Speed upto 70 Mbps, Spectrum 3.5Ghz
QOS Support, Robust Security, Mobility Support
Types:
Fixed WiMAX (IEEE 802.16-2004)
Mobile WiMAX (IEEE 802.16e-2005)
http://www.wimaxforum.org/ -
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FIXED WIMAX ARCHITECTURE
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MOBILE WIMAX ARCHITECTURE
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COMPARISON BETWEEN 2G, 3G, 4GGenera
tion
Data Type Spectrum Speed Technol
ogy
Time
Period
Features
1G Analog 150 MHz &
above
14.4Kbps
(Peak)
AMPS,
NMT,
TACS
1970-
1980
Wireless Phones
used only for
Voice.
2G DigitalNarrowband
Circuit data
800/900MHz to
1800/1900
MHz
9.6/14.4kbps TDMA,CDMA
1990-2000
Multi users onsame channel ie.
Multiplexing
Along voice data
transfer like SM
2.5G Packet Data 800/900
MHz to1800/1900
MHz
171.2Kbps
(Peak)
GPRS 2001-
2004
Multimedia Data
Transfer, Phoneweb browser.
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COMPARISON BETWEEN 2G, 3G, 4GGen
erati
on
Data Type Spectrum Speed Technolo
gy
Time
Period
Features
3G Digital
Broadband
Packet Data
400 MHz to
2.1 GHz
14.4Mbps
(Peak),
3.1Mbps
CDMA
2000,
UMTS,
HSPA.
2006-
2010
Portability
across device
(Telephone
PDA, etc),
HighThroughput
speed.
4G Digital
Broadband All
packet IP
800 MHz to
2.6 GHz
100-
300Mbps
(Peak),
3-5Mbps
Wimax,
LTE
2009
onwards
HD streaming
Increased
portability an
speed, Worldroaming
possibility.
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ANY QUESTIONS???
THANK YOU.!
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