Presented by- VAIBHAV SHARMA 12256 ECE-II

A SEMINAR ON 2G & 3G

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.

COMPANY’S OVERVIEW

1.2G - 2G TECHNOLOGY - ADVANTAGES - DISADVANTAGES - 2.5G (GPRS) - APPLICATIONS2.3G - HISTORY - 3.5G - APPLICATIONS - GSM ARCHITECTURE

CONTENTS

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.

2G

2G TECHNOLOGY

2G

TDMA CDMA

ADVANTAGES

1.Lower power emission.2.Digital data services such

as SMS & emails.3. Greatly reduced fraud.4. Enhanced privacy.

DISADVANTAGES

1. Weaker digital signal.2. Angular decay curve.3. Reduced range of sound.

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

2.5G

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

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 2001The first commercial network in Europe wasopened 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 launched3G services on Nov 2010.

HISTORY

11

3G SERVICES IN ASIA CDMA (1xEV-DO)

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 broadcastVideo calls, video clips – news, music, sportsEnhanced gaming, chat, location services…

For businessHigh speed teleworking / VPN accessSales force automationVideo conferencingReal-time financial information

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

3.5G

1.Mobile T.V2. Video on demand3. Video conferencing4. Tele-medicine.5. Location based services

APPLICATIONS

Also known as ‘Mobile Broadband everywhere’‘MAGIC’

1. Mobile Multimedia Communication2. Anywhere, Anytime with Anyone3. Global Mobility Support4. Integrated Wireless Solution5. 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.

4G

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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

WIRELESS ACCESS EVOLUTION

Broadband New Services Efficiency

Broadband

Subscribers

Voice

Coverage Mobility

Voice Quality Portability Capacity

Broadband Network

Simplification Cost of

Ownership

BTS

MSC VLR

HLR

PSTNISDN

DataNetworks

(

Air interface

OMC

BTS

BTS

VLR

BSCBSC

A InterfaceA-bis interface

UM Interface

GSM System Architecture

GMSC

BTS

BTS

BSC

GSM Network Architecture

HLR

OMC

VLR

BSS

AUC

Other MSC VLR

Other Networks (PSTN,PSPDN)

EIROtherMSC

MSA

Abis

Abis

Um

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)

GSM System Architecture-I

THANKS