3G is the next generation of technology which has revolutionized the telecommunication industry. Apart from increasing the speed of communication, the objective of this technology is to provide various value-added services like video calling, live streaming, mobile internet access, IPTV, etc on the mobile phones. These services are possible because the 3G spectrum provides the necessary bandwidth.

1. Members
1. Arif, Md. Nazrul Islam
2. Ali ASM Iftekhar
3. Tabassum Mehnaz

2. 
UMTS™ (Universal Mobile Telephone Service) is a
Third Generation (3G) Mobile System being developed by ETSI™(European
Telecommunications Standards Institute) within the ITU’s IMT-2000 framework. It provides
data speed of up to 2 Mbps and makes portable videophones a reality.
 3G Technology is designed for multimedia communication. It provides higher
data transfer rates(144kbps- 2Mbps)
 3G is the next generation of technology which has revolutionized the
telecommunication industry. Apart from increasing the speed of communication,
the objective of this technology is to provide various value added services like
video calling, live streaming, mobile internet access, IPTV etc on the mobile
phones.
 3G is a set of technologies and standards that include W-CDMA, UMTS system,
TD-SCDMA radio interface, WLAN and cellular radio, among others.

3.  The 3G (UMTS and CDMA2000) research and development projects started
in 1992.
 In 1999, ITU approved five radio interfaces for IMT-2000 as a part of the
ITU-R M.1457 Recommendation; WiMAX was added in 2007.
 The first pre-commercial 3G network was launched by NTT DoCoMo in
Japan, branded as FOMA. It was first available in May 2001 as a pre-release
(test) of W-CDMA technology.
 The first commercial launch of 3G was also by NTT DoCoMo in Japan on
1 October 2001, although it was initially somewhat limited in
scope; broader availability of the system was delayed by apparent
concerns over its reliability.

4.  Higher bandwidth enables a range of new applications.
 For the consumer
 Video seamless roaming, TV broadcast
 Video calls, video clips – news, music, sports
 High Speed Web / More Security
 Enhanced gaming, chat, location services…
 For business
 High speed teleworking / VPN access
 Sales force automation
 Video conferencing
 Real-time financial information

5. Mobile
Tv
Tele
Medicine
Video
Conferencing

6. 3G Technology
 Basic Structure how 3G works.
3G Network
Video Streaming Media Server
3G-324M Protocol
Mobile Video Phone
IP
Voice Mail System
SIP Video Phones PC Video Terminals
M
S
C
E1 - ISUP
GATEWAY

7.  Support up to 2Mbps data transfer rates.
 Support for Global Roaming such that a mobile device can access
any network anywhere in the world.
 The 3G system would technically function on the CDMA (Code
Division Multiple Access)network.
 There are two versions of 3G, one running over CDMA2000 and
the other over WCDMA(Wideband Code Division Multiple Access)
.

8.  3G networks have the capability of transferring speeds up to 2
Mbps which is equivalent to around 15 seconds for every
download of a 3-minute MP3 song.
 To compare with 3G, the speediest 2G cellular phones can move
speeds up to 144 Kbps, which is equivalent to around 8 minutes to
download a 3-minute MP3 song.

9.  3G is superior to the other digital standards like:-
• GSM (Global System for Mobile) communications standard used worldwide
• And IS-136 TDMA standard used primarily in North America.
 3G Technologies:-
• WCDMA or UMTS-FDD (Universal Mobile Telecommunications System -
Frequency Division Duplex)---Direct Spread
• CDMA2000 - 1x-EvDO/EvDV---Multi carrier
• UMTS – TDD (Time Division Duplex) or TD-SCDMA (Time Division -
Synchronous Code Division Multiple Access) ---Time Code
 4G Technologies:-
• Digital Audio Broadcast (DAB) and Digital Video Broadcast (DVB) for wide
area broadcasting
• Local Multipoint Distribution System (LMDS)
• Microwave Multipoint Distribution System (MMDS)

10. 2.5G2G 3G
cdmaOne
IS-95A
TDMA
cdmaOne
IS-95B Cdma2000 1X
Cdma2000
1xEV-DV
Cdma2000
1xEV-DO
GSM
GPRS
EDGE WCDMA
GSM Map Core Network
IS-41 Core Network

11.  (Wideband Code Division Multiple Access)
 Wideband CDMA is a third-generation (3G) wireless standard which utilizes one 5 MHz channel
for both voice and data, initially offering data speeds up to 384 Kbps. WCDMA was the 3G
technology used in the US by AT&T and T-Mobile.
There are several newer upgrades to WCDMA that offer much faster data speeds, such as
HSDPA and HSPA+. These do not replace WCDMA, but rather build on and enhance WCDMA.
Therefore any phone with HSDPA or HSPA+ also includes WCDMA by definition.
WCDMA is also referred to as UMTS - the two terms are effectively interchangeable.
WCDMA is the standard that most GSM carriers moved to when upgrading to 3G. Parts of the
WCDMA standard are based on GSM technology. WCDMA networks are designed to integrate
with GSM networks at certain levels. Most WCDMA phones include GSM as well, for backward
compatibility.
WCDMA borrows certain technology ideas from CDMA, as the name implies, but is in fact very
different and incompatible with phones and networks using "CDMA" technology.
In Europe and Asia, WCDMA was first deployed in the all-new 2100 MHz frequency band. In
North America, WCDMA was deployed in the existing 1900 MHz (PCS) and 850 MHz (cellular)
bands, as well as the newer 1700 MHz (AWS) band.

12.  Universal Mobile Telecommunications System.
A third generation (3G) mobile communications technology
that promises data transmission speeds of up to 2 megabits
per second (Mbps), although actual speeds may be
significantly lower at first, due to network capacity
restrictions.
UMTS uses WCDMA technology, and the two terms are often
used interchangeably with each other.

13.  Web wasn’t designed for a 2 inch by 3 inch screen.
• Inputting information is much more difficult.
 Voice recognition would help.
 Overweight handsets with poor battery life.
 Poor coverage in the US.
 To support full motion video on demand, base stations will
need to setup every .5 miles, which isn’t feasible in rural
areas.
• Because it is so data intensive.

14. Overcrowding is relieved in existing systems with radio
spectrum
Bandwidth, security and reliability are more
Provides interoperability among service providers
Availability of fixed and variable rates
Support to devices with backward compatibility with existing
networks
Always online devices – 3G uses IP connectivity which is packet
based
Rich multi media services are available

15. 1. 3G performance may not be sufficient to meet needs of future
high-performance applications like multi-media, full-motion
video, wireless teleconferencing.We need a network technology
that extends 3G capacity by an order of magnitude.
2.There are multiple standards for 3G making it difficult to
roam and interoperate across networks. we need global mobility
and service portability
3. 3G is based on primarily a wide-area concept.We need hybrid
networks that utilize both wireless LAN (hot spot) concept and
cell or base-station wide area network design.

16. 4.We need wider bandwidth
5.Roaming and data/voice work together has not yet
been implemented
6. We need all digital packet network that
utilizes IP in its fullest form with converged
voice and data capability.

17.  High spectrum licensing fees for the 3g services
 It is a challenge to build the necessary infrastructure
for 3g services.
 Health impact because of the electromagnetic waves.
 Prices are high for 3g mobile services.
 Expense of 3G phones.
 Limitation to meet expectations of applications like
multimedia, full motion video, wireless
teleconferencing.

19. 2G : Voice
3G: Voice and Fast Data
4G: Voice and Super Fast Data

20.  If our phone is mostly for voice use, we have no need for 4G
data. Save money and save battery life by choosing a device
without the high-speed network.
 If we live in an area that doesn't have 4G coverage, there's no
advantage to a 4G phone. In fact, we'll have serious battery
life problems if we buy an LTE phone and don't disable 4G LTE,
as the radio's search for a non-existent signal will drain your
battery quickly.
 If we're strapped for cash and buying a phone off contract, we
may have to settle for 3G to save money.

21. 3g services add invaluable dimension for the integral
part of the modern world.
3G has significantly boosted network capacity to enable
operators to support more subscribers, as well as offer
more sophisticated services.

22. Thank You……..