4G, or fourth-generation wireless, began commercial launch in late 2009 and is designed to provide high-speed mobile broadband, with data rates of 100 Mbps for mobile and 1 Gbps when stationary. It aims to support a variety of services including multimedia messaging, mobile TV, and video chat while enabling seamless connectivity and global roaming. Key benefits include lower operational costs, higher bandwidth, and enhanced user experience through advanced technologies like ultra wideband and smart antennas.

1. 4G
BY ABHINAV K.P
& KURIAN J KANATH … 

2. When Did 4G start ??

3. TeliaSonera was the first operator in
the worldto commercially launch
4G. It was in late 2009, in the city
centres of Stockholm andOslo.

4. What Is 4G??
 4G is the short term for fourth-generation wireless. It is still a research
lab standard , the stage of broadband mobile communications that will
supersede the third generation (3G). It is expected that end-to-end IP
and high-quality streaming video will be among 4G's distinguishing
features.
 A 4G system will be able to provide a comprehensive IP solution
where voice , data and streamed multimedia can be given to the
users on “ Anytime Anywhere ” basis and higher data rates than the
previous generations.
 It will be a fully IP based integrated system capable of providing
between 100 Mbps to 1 Gbps in both indoor and outdoor with
premium quality and high security.
 It is going to be launched in the year 2010.

5. Mobile System Generations
 First Generation (1G) mobile systems were
designed to offer a single service, i.e., speech
 Second Generation (2G) mobile systems were also
designed primarily to offer speech with a limited
capability to offer data at low rates.
 Third Generation (3G) mobile systems offer high-
quality multi-media services and operate in different
environments.

6. 4G OBJECTIVE
 4G is being developed to accommodate the Quality of Service
(QOS) and rate requirements set by forth coming applications like
1. MMS (Multimedia Messaging Service).
2. Wireless Broadband Service.
3. Video Chat.
4. Mobile TV.
5. Digital Video Broadcasting.
6. High Network Capacity.
7. Data Rate of 100 Mbps for mobile and 1 Gbps while stationary .
8. Smooth handoff across heterogeneous network..
9. Seamless Connectivity and Global Roaming across multiple
networks.

7. 4G Features
 Support interactive multimedia, voice, video,
wireless internet and other broadband services.
 High speed, high capacity and low cost per bit.
 Global mobility, service portability, scalable mobile
networks.
 Seamless switching, variety of services based on
Quality of Service (QoS) requirements.
 Better scheduling and call admission control
techniques.
 Ad hoc networks and multi-hop networks.

8. 4G Characteristics
4G can support high-speed (up to 100Mbps), but high-speed is not 4G.

9. Time-line from 1G to 4G and beyond:
 The first generation, 1G wireless mobile communication systems, was
introduced in the early 1980s. 1G wireless was analog and supported the
first generation of analog cell phones with the speeds up to 2.4kbps.
 The second generation, 2G system, fielded in the late 1980s.It was
planned mainly for voice transmission with digital signal and the speeds
up to 64kbps.
 The third generation, 3G wireless system, also called UMTS (Universal Mobile
Telecommunications Standard). , was developed in the late 1990s .3G is not
only provided the transmission speeds from 125kbps to 2Mbps, but
also included many services, such as global roaming, superior voice and
video quality.
 The fourth generation, 4G is a conceptual framework just raised in 2002.
The speeds of 4G can theoretically be promised up to 1Gbps. The
beyond will be 5G with incredible transmission speed with no limitation
for access and zone size.

10. GENERATIONS TIMELINE :

12. IP Tunnelling in 4G

13. Telecom Companies Developing 4G
1. NTT DoCoMo (JAPAN)
2. DIGIWEB (IRELAND)
3. SPRINT (CHICAGO)
4. VERIZON WIRELESS
5. VODAFONE GROUP
6. AMERICAN WIRELESS
PROVIDER CLEARWIRE ETC..

14. APPLICATIONS
 The applications of 4G are called “KILLER
APPLICATIONs” as it is going to bring to
revolution in the internet world.
-- High Speed Data Rate due to which a movie
can be downloaded in 2 to 3 minutes.
-- More Security.
-- Video Conferencing.
-- Higher Bandwidth.
-- Global Roaming.

15.  High Speed:– Data Rate of 100 Mbps for mobile
and 1 Gbps while stationary.
 Global Standard:-4G will be a global standard that
provides global mobility and service portability so that
service provider will no longer be limited by single-
system.
 Low Cost:– Access technologies, services and
applications can unlimitedly be run through wireless
backbone over wire-line backbone using IP address.
Benefits of 4G

16. Benefits of 4G
 Convergence of Cellular Mobile Networks and WLANs
Benefits for Operators
Higher bandwidths, Lower cost of networks and equipment
higher revenue.
Users
Access to broadband multimedia services with lower cost and here
 Convergence of Mobile Communication and Broadcasting
Benefits for Operators
Cellular operators will benefit from offering their customers a
range of new broadband multi-media services in vehicular
environments.
Users
Users will benefit from faster access to a range of broadband multi-
media services.

17. 4G Hardware’s
 Ultra Wide Band Networks :Ultra Wideband
technology, or UWB, is an advanced transmission
technology that can be used in the
implementation of a 4G network.
 Smart Antennas : Multiple “smart antennas” can
be employed to help find, tune, and turn up
signal information

18. Key 3G and 4G Parameters
Attributes 3G 4G
Major Characteristic
Predominantly voice- data
as add-on
Converged data and VoIP
Network Architecture Wide area Cell based
Hybrid – integration of
Wireless Lan (Wi-Fi), Blue
Tooth, Wide Area
Frequency Band 1.6 - 2.5 GHz 2 – 8 GHz
Bandwidth 5 – 20 MHz 100+ MHz
Data Rate 385 Kbps - 2 Mbps 20 – 100 Mbps
Access WCDMA/CDMA2000 MC-CDMA or OFDM
Switching Circuit/Packet Packet
IP Multiple versions All IP (IPv6.0)
Operational ~2003 ~2010

19. Key Challenges to 4G
 No large user community for advanced mobile data applications.
Not possible to offer full internet experience due to limited
speed and bandwidth
Comparatively higher cost to use and deploy infrastructure
Since 3G mobile is still in the market, it squeezes the market
competition in the mobile industry.
Coverage limitations due to high frequencies (> 5 GHz)
 Improved User interfaces
 Advanced Speech recognition and synthesis

21. Any Questions
?

22. Thank You