The document discusses the evolution of wireless communication technologies from 3G to 4G. 4G provides significantly faster mobile broadband internet access compared to 3G, enabling applications like high-definition mobile TV and video conferencing. Key technologies that support 4G include LTE, WiMax, and UMB. While LTE promises download speeds up to 100 Mbps, WiMax's speeds are lower around 3-46 Mbps. Many countries have already launched 4G networks, while India is working to introduce 4G after fully implementing 3G. 4G will deliver truly high-speed wireless connectivity without wires.

1. --- Forthcoming technology in
Wireless Communication.
Presented By,
Sahil Sharma
Harvinder Singh

2.  Introduction.
 Evolution.
 Generations.
 Comparison Between 3G and 4G.
 4G Characteristics.
 Mobile Services Before 4G.
 Infrastructure for 4G.
 WiMax
 4G-Technology.
 Objectives and Uses.
 SWOT Analysis.
 Countries having 4G.
 4G in India
 Conclusion.
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3. In telecommunications, 4G is the fourth generation of cell
phone mobile communications standards. It is a successor of the third
generation (3G) standards. A 4G system provides mobile ultra-
broadband Internet access, for example to laptops with USB wireless
modems, to Smartphones, and to other mobile devices. Conceivable
applications include amended mobile web access, IP telephony,
gaming services, high-definition mobile TV, video conferencing and 3D
television.
Now-a-days the goal of many customers is to have PC at one’s palm .
To support such powerful systems we need long range, high speed
wireless network called 4G.
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4.  The first commercial deployment was by Telia Sonera and
NetCom.
 Telia Sonera branded the network “4G”.
 The modem devices on offer were manufactured by Samsung
(dongle GT-B3710).
 The network infrastructure were created by Huawei (in Oslo)
and Ericsson (in Stockholm).
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6. Generations
GenG
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8. Technology 3G 4G
Frequency band 1.8 - 2.5GHz 2 - 8GHz
Bandwidth 5-20MHz 5-20MHz
Data rate Up to 2Mbps 100Mbps moving,
1GB stationary
Access W-CDMA VSF-OFCDM
VSFCDMA
FEC Turbo-codes Concatenated
Switching Circuit/Packet Packet
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9. Convergence Services--- Seamless .
--- Highly-reliable.
--- Quality Broadband communication .
--- Ubiquitous- connectivity.
Broadband Services --- Low Cost.
--- Wide Coverage Area.
--- Wide Variety of Services Capability.
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10.  LTE[Long Term Evolution]—UMTS(Universal Mobile
Telecomm. Systems)
Objectives : Improving Efficiency.
Lowering Costs.
Improving Services.
Better integration with
other standards.
Aim of LTE : Download rate - 100mbps
Upload rate-50 mbps.
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11.  WIMAX-[Worldwide Interoperability for Microwave Access]
Objectives: Low Cost.
Low Expense Voice transport
and delivery of services.
Aim: Download data-rate 46 mbps.
Upload data-rate 14 mbps.
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12.  There are three primary technologies that support 4G –
WiMax, LTE, and UMB.
 The main doubt is whether to implement WiMax or LTE.
 The advantages of LTE are:
(i) Faster speed with 100 Mbps for download and 50
Mbps for upload.
(ii) It makes CDMA and GSM database moot.
(iii) It offers both FDD and TDD duplexing.
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14.  WiMax technology might not achieve the required rate in a
high-density area.
 However, WiMax technology becomes useful when it is
bundled with IPTV.
 The wireless bandwidth will be roughly 3Mbps/1.5Mbps; but
this is nowhere near the +100Mbps/50Mbps that LTE
promises.
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16.  Adaptive Modulation And Coding(AMC).
 Adaptive Hybrid ARQ.
Multi In-Multi Out And Orthogonal Frequency-Division
Multiplexing(MIMO and OFDM).
Open Distributed AD-HOC Wireless Network.
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18. Flexible channel bandwidth: 5 MHz to 20 Mhz.
(up to 40 MHz)
Developing of 3G applications: MMS(multimedia messaging
services).
Video chat.
Mobile T.V.
HDTV.
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19. STRENGTHS : Strong position of telecommunication vendors.
Faster data transmissions .
Higher bit-rate .
Larger bandwidth.
Personalized multimedia communication tools.
WEAKNESS : No large user community .
Divergence between vendors and operators.
No full internet -- limited speed ,bandwidth
Highest cost to use and on infrastructure.
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20. OPPORTUNITIES: Evolutionary approach.
Sophisticated commercialization would
encourage e-commerce and m-commerce.
Expected that consumers will replace
handsets with newer tech.
Desirable higher data capacity rates.
THREATS : Faster rate of growth and developments in
other region.
Since 3G is still in market ,it squeezes the
market competition in mobile industry.
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21.  Except for the Scandinavian countries, most of the strong
nations have started the 4G commercially.
 In the US, Sprint Nextel initiated the service a couple of years
ago.
 Countries who’ve launched 4G by the last year include -
Germany, Spain, China, Japan and England.
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23. Has already begun the process of introducing 4G.
India is among the latecomers in 3G.
It is felt that by the time the implement 3G fully, 4G
technologies such as LTE will be available commercially.
It has taken three years for the government to decide on 3G-
spectrum auction policy.
4G could face the same delay unless India wants to catch up
with the rest of the world.
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24. 4G mobile phone technology promises faster communication
Speeds (100 megabits per second), capacity and diverse usage
formats. These formats would provide richer content and
support for other public networks such as optical fibre and wireless
local area networks.
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25. Delivers true speeds without wires.
Faster -- more bandwidth.
Completely portable .
3 times faster than 3G .
4G is broadband technology that will give us richer ,pleasurable
internet experience.
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