Where are we?

Where do we Want to go?

3G vs 4G

4G Process

Challenges

Hyper Lan- set of wireless Lan

1G-First Generation Speech

2G-Second Generation SMS , MMS CDMA , GPRS , EDGE Voice Mail

3G-Third Generation Wireless Internet Video Calling Mobile TV

High transfer rate

Internet access any where

Ability to move around with the same IP address

Utilization of Smart antennas

High resolution Mobile TV

GSM/TDMA Time Division Multiplexing based access

CDMA Code Division Multiplexing based access

OFDM Orthogonal Frequency Division Multiplexing

Technology 3G 4G

Data Transfer Rate 3.1MB /sec 100MB/sec

Internet services Broadband Ultra Broadband

Mobile -TV Resolution

Low High

Bandwidth 5 - 20 MHz 100 +MHz

Frequency 1.6- 2 GHZ 2 – 8 GHz

Network Architecture Wide Area Network Hybrid Network

3G Vs 4G

What is 4G?What is 4G? The “twelve views” of 4G

Is that your final answer?

Service provider

s

Cost reductio

n

User service

s

Wireless

wireline

Technology trends

New network

New air interfac

e

Wireless

Internet

4G will not

exist

Higher bit rates

White space

Strictgeneratio

n

Wireless

wireline

New network

New air interfac

e

Technology trends

Cost reductio

n

Higher bit

rates

User services

White space

Service provider

s

Wireless

Internet

SCENARIO AHEADSCENARIO AHEAD

HOT SPOTS

Public Networks/Public Networks/InternetInternet

Converged servicesConverged services

PUBLICTRANSPORT

VEHICLE

WORK

OUTDOORS

RURAL

HOME

Seamless connectivity to all networks,

applications, & services

Anytime Anywhere

Everything is IP

Machine-to-machine transmission

-Sensors (measure parameters)

-Tags (read/write equipment)

Consented to achieve 500bit/s/Hz/km2 -HSDPA (High Speed Download Packet Access)

-MIMO

WWI agreed peak rates of 100Mbit/s in mobile

situations1Gbit/s in nomadic/pedestrian situations

Service Evolution and Service Evolution and ConsensusConsensus

4G Process

To operate large number of users - Parent coverage - Pico-cell coverage

Mobile IP VoIP Ability to move around with the same IP address IP tunnels Intelligent Internet

Presence Awareness Technology Knowing who is on line and where

Radio Router Bringing IP to the base station

Smart Antennas Unique spatial metric for each transmission

Key Technologies Required for 4G

OFDMA

-Time domain

-Space domain

-Frequency domain

Key Technologies Required for 4G MIMO

Signal multiplexing between antennas

-Smart antennas

Well suited to OFDM

Key Technologies Required for 4G

Coverage Parent coverage ------ Pico-cell coverage

4G: Data Rate Facts4G: Data Rate FactsTransmission 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.

Challenges Sufficient spectrum with associated sharing mechanisms.

Coverage with two technologies.

Caching technology in the network and terminals.

OFDM and MIMO.

IP mobility.

Multi-technology distributed architecture.

Fixed-mobile convergence (for indoor service).

Network selection mechanisms.

Life-Saving: Telemedicine

Video Conferencing

Telegeoprocessing: GIS,GPS

Better Usage of Multimedia Applications

Voice over Internet Protocol (VoIP) for IPv6

Any Queries?

Thank U