This document discusses 3G and 4G wireless technologies. It provides information on the evolution of wireless systems from 1G to 4G. 3G allows integration of voice, data and video through wider bandwidths, while 4G provides even higher speeds through technologies like LTE. The document outlines features and applications of 3G and 4G, as well as some disadvantages like high initial costs. Overall it serves as an overview of the capabilities and history of 3G and 4G wireless networks.

1. Prepared by :Syed Fatehyab Ahmed
Roll no:201107002
Downloaded From Pupil Junction.com

2. • What is 3G & 4G TECHNOLOGIES?
• Evolution Wireless System
• Difference between 3G & 4G
• Features And Advantages of 3G & 4G
TECHNOLOGIES
• Disadvantages of 3G & 4G
TECHNOLOGIES
• Application of 3G & 4G TECHNOLOGIES

3. • A generation of wireless technology
that transmits wireless data up to 2
megabits per second and makes
integration of
• VOICE
• DATA
• VIDEO

4. • 4G is the term used to refer to the next
wave of high-speed mobile technologies
that will be used to replace current 3G
networks. The two top contenders are LTE
and WiMAX, both of which are IP based
networks that are built from similar, yet
incompatible, technologies. Sprint and Clear
wire are currently offering 4G WiMAX
service in the USA, while Verizon and AT&T
have committed to the use of LTE and are
trialing their own 4G networks.
• Also known as: "fourth generation"

5. • Wireless mobile communications systems are uniquely
identified by "generation designations. Introduced in
the early 1980s, first generation (1G) systems were
marked by analog frequency modulation and used
primarily for voice communications.
• Second generation (2G) wireless communications
systems, which made their appearance in the late
1980s, were also used mainly for voice transmission
and reception The wireless system in widespread use
today goes by the name of in 2.5G-an " between "
service that serves as a stepping stone to 3G. Whereby
2G communications is generally associated with
Global System for Mobile (GSM) service, 2.5G is
usually identified as being "fueled " by General Packet
Radio Services (GPRS) along with GSM

6. • . In 3G systems, making their appearance in late 2002
and in 2003, are designed for voice and paging
services, as well as interactive media use such as
teleconferencing, Internet access, and other services.
The problem with 3G wireless systems is bandwidth-
these systems provide only WAN coverage ranging
from 144 kbps (for vehicle mobility applications) to 2
Mbps (for indoor static applications). Segue to 4G, the
"next dimension " of wireless communication.
• The 4G wireless uses Orthogonal Frequency Division
Multiplexing (OFDM), Ultra Wide Radio Band (UWB),
and Millimeter wireless and smart antenna. Data rate
of 20mbps is employed. Mobile speed will be up to
200km/hr. Frequency band is 2 •- 8 GHz. it gives the
ability for world wide roaming to access cell anywhere.

7. • 3G--solid on phone calls and text and email, but really
not fast or efficient at all when it comes to audio or
video on the internet. The internet speeds are only
slightly better than old-school dial-up modems
usually, but can go up to near-DSL levels.
• 4G--Way faster and more efficient when it comes to
audio and video streaming. Also eats up way too
much battery life, way too much data limits, it isn't as
secure as previous gens and tends to flake out in
terms of _phone service_ unless you have perfect
signal bars. Even so, the internet speed on 4G can
beat DSL sometimes.

9. • The presence of a wide radio bandwidth means that users
are able to experience faster data transmission speeds and
issues pertaining to overcrowding are minimized.
• One of a kind multimedia experience. This means that more
people are able to easily access music, pictures and videos
with ease as well as share them. Improved messaging and
Bluetooth capabilities are able to support this unlike in 2G
devices.
• Business, entertainment and socializing have all been
escalated to a new level. With ample video conferencing
support meetings can be held without having to be in the
same geographical location. Various entertainment spots
and gadgets can be accessed via 3G internet for an
unforgettable experience!
• It is now possible to operate more cell phones within a
network than ever before. Consequently, users are able to
access a variety of services within a network.

10.  Support for multimedia services like teleconferencing and
wireless internet.
 Wider bandwidths and higher bit rates.
 Entirely packet-switched network.
 Global mobility and service portability.
 Support for previous wireless technologies.
 High internet speed.
 tight network security.
 Better response time. 10 times better than 3G
 Less time to build 4G because it uses the same tower and
fiber cable as 3G- they only have to upgrade the tower with
4G
 Provide high flexibility as compared to already existing
technologies

11. •High Prices to help cover the initial
demand and fixed cost.
• Needs more towers the high density
requires towers to be closer together.
•Availability to consumers.
• One of the biggest disadvantages is
that is would be a big risk for
entrepreneurs to take because the cost
are high, and the start slow.

12. • New technology which make is more
expensive than 3G
• Better usage is more
• Need complicated hardware
• Not compatible with already existing
2G and 2.5 G handset.

13. • Video Surveillance Monitoring using 3G Network.
• Video Conferencing from anywhere using 3G
Network.
• Making Remote Access Network Connectivity for
small branches/ temporary locations simple and easy
using 3G Network.
• Enabling (Partial) Access to critical enterprise
applications like ERP, CRM, Business Intelligence on
your Mobile Phone Using 3G Network.
• Reduce Long Distance Voice Call Charges using VOIP
Communications and 3G Network.
• 3G Network as the back-up (or) even primary Internet
access method for SMB companies.

14. • 4G Car :
With the hype of 3G wireless in the rear view
mirror, but the reality of truly mobile
broadband data seemingly too far in the future
to be visible yet on the information super
highway, it may seem premature to offer a test
drive 4G. But the good news is, 4G is finally
coming to a showroom near you
• public safety.
• Sensors in public vehicle.
• Cameras in traffic light .
• First responder route selection.
• Traffic control during disasters.

15. • As the history of mobile communications
shows, attempts have been made to reduce
a number of technologies to a single global
standard.
• 4G seems to be a very promising generation
of wireless communication that will change
the people’s life in the wireless world.
• 4G is expected to be launched by 2010 and
the world is looking forward to the most
intelligent technology that would connect
the entire globe.