1. Presented by- VAIBHAV SHARMA 12256 ECE-II
A SEMINAR ON 2G & 3G
Presented by-
VAIBHAV SHARMA
12256
ECE-II

2. COMPANY’S OVERVIEW Haryana for its first position.
Company name :- BSNL ,Narnaul,distt. Mahendergarh
D.T.O :- Mr.Ishwar Kumar Yadav
The BSNL of Narnaul, Distt. Mahendergarh
is placed first in Haryana State due to its
Technical machines,Trainers & cleanliness
It was also awarded from the C.M. of
Haryana for its first position.

3. CONTENTS 2G 3G - 2G TECHNOLOGY - ADVANTAGES - DISADVANTAGES
- 2.5G (GPRS)
- APPLICATIONS 3G
- HISTORY
- 3.5G
- GSM ARCHITECTURE

4. 2G 2g refers to second generation wireless
Telephone technology .Second generation
Cellular n/w were launched on GSM
Standard in Finland in 1991.
After 2G new technologies such as 2.5G,
2.75G, 3G, 4G & 5G. 2G n/w are still
Used in many parts of the world.

5. 2G TECHNOLOGY 2G
TDMA
CDMA

6. ADVANTAGES 1.Lower power emission.
2.Digital data services such as SMS & s.
3. Greatly reduced fraud.
4. Enhanced privacy.

7. DISADVANTAGES
Weaker digital signal.
Angular decay curve.
Reduced range of sound.

8. 2.5G 1. It is used to describe 2G system which have implemented
a packet switched domain in addition to the surface switched
Domain.
2. The first major step in evaluation of GSM networks to 3G
With the GPRS .
3. The combination of these is known as 2.5G.
4. It includes the services like wireless application protocol(WAP) ,
Multimedia messaging servicing (MMS) and for internet
communication services

9. 3G 3G refers to third generation.It is a generation
of standard for mobile phone and mobile
Telecommunication services .The data rate of 3G
Is atleast 200kbps.The main feature
Of 3G are:
Wireless voice telepnone.
Mobile internet.
Video calls.
Mobile T.V

10. HISTORY The first pre-commercial 3G network was
launched By NTT Docomo in Japan.
The first commercial launch Of 3G was also
by NTT Docomo in Japan on 1 oct 2001
The first commercial network in Europe was
opened for business by Telenor in dec 2001.
3G launched in India by govt. owned MTNL
In Delhi and later in Mumbai.Tata Docomo
Was the first private sector service who launched
3G services on Nov 2010.

11. 3G services in Asia CDMA (1xEV-DO) WCDMA / UMTS Korea: SKT, KTF
Japan: AU (KDDI)
WCDMA / UMTS
Japan: NTT DoCoMo, Vodafone KK
Australia: 3 Hutchinson
Hong Kong: 3 Hutchinson

12. Why 3G? Higher bandwidth enables a range of new applications!!
For the consumer
Video streaming, TV broadcast
Video calls, video clips – news, music, sports
Enhanced gaming, chat, location services…
For business
High speed teleworking / VPN access
Sales force automation
Video conferencing
Real-time financial information

13. 3.5G
3.5G or HSDPA (High Speed Downlink Packet Access) is an enhanced version . It comprises the technologies that improve the Air Interface and increase the spectral efficiency, to support data rates of the order of 30 Mbps. 3.5G introduces many new features that will enhance the UMTS technology in future. These include:
Adaptive Modulation and Coding
Fast Scheduling
Backward compatibility with 3G
Enhanced Air interface

14. APPLICATIONS 1.Mobile T.V 2. Video on demand 3. Video conferencing
4. Tele-medicine.
5. Location based services

15. 4G Also known as ‘Mobile Broadband everywhere’ ‘MAGIC’
1. Mobile Multimedia Communication
2. Anywhere, Anytime with Anyone
3. Global Mobility Support
4. Integrated Wireless Solution
5. Customized Personal Service
According to 4G Mobile Forum, by 2008 over $400
billion would be invested in 4G mobile projects.
In India, communication Minister Mr. Dayanidhi Maran,
has announced a national centre of excellence to work
in 4G arena.

16. 4G: Data rate Facts Transmission at 20 Mbps
2000 times faster than mobile data rates
10 times faster than top transmission rates planned in final build out of 3G broadband mobile
10-20 times faster than standard ADSL services.
Companies developing 4G technology
Cellular phone companies: Alcatel, Nortel, Motorola,
IT Companies: Hughes,HP,LG Electronics

17. Wireless Access Evolution
Subscribers
Broadband
Network Simplification
Cost of Ownership
Broadband
New Services
Efficiency
Voice Quality
Portability
Capacity
Coverage
Mobility 1G 2G 3G 4G
Voice
Broadband

18. ( GSM System Architecture A Interface A-bis interface OMC PSTN ISDN
UM Interface
HLR
PSTN
ISDN B T S
MSC VLR
Data
Networks B T S
BSC
A Interface
A-bis interface
VLR
Air interface

19. GSM Network Architecture
OMC
Other MSC VLR
VLR Um
Abis
BTS A MS
AUC
GMSC
HLR
BSC
BTS
Abis
BSS
Other Networks
(PSTN,PSPDN)
EIR
OtherMSC
GSM Network Architecture

20. GSM System Architecture-I
Mobile Station (MS)
Mobile Equipment (ME)
Subscriber Identity Module (SIM)
Base Station Subsystem (BSS)
Base Transceiver Station (BTS)
Base Station Controller (BSC)
Network Switching Subsystem(NSS)
Mobile Switching Center (MSC)
Home Location Register (HLR)
Visitor Location Register (VLR)
Authentication Center (AUC)
Equipment Identity Register (EIR)

21. THANKS