4G & 3G TECHNOLOGY

PRESENTED BY:Ahsan Riaz

Index

OverviewWhat is 4-G 3-G Vs. 4-G Advantages of 4-G Disadvantages of 4G Application of 4-G 4-G in Pakistan Advantages of 3G Disadvantages of 3G Challenges ConclusionWhy 4G is Better than 3G

A Couple of Decades Ago?

1G-First Generation (1980s to 1990’s)Speech

2.4 kbps speed

Poor Voice quality

Analog Signal

2G-Second Generation Digital Signals

64kbps

GSM

SMS , MMS

3-G

3G-Third Generation

Wireless Internet

Video Calling

Mobile TV

Drawbacks

High Bandwidth Requirements

High spectrum licensing fees

Huge capital

Future Demands..!

4G3G

2G

1G

High transfer rate

Internet access any where

Ability to move around with the

same IP address

Utilization of Smart antennas

High resolution Mobile TV

What’s new in 4G ?

o IP (Internet Protocol) based mobile systems.

o Entirely packet-switched networks.

o Digital in nature

o Wider Bandwidths 100Mhz

Why 4G is Better than 3G

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

Signal Quality Good Best

Communication Type Circuit Switching Packet Switching

Technology 3G 4G

Data Transfer Rate 3.1 MB/sec 100 MB/sec

Internet Services Broadband Ultra Broadband

Mobile - TV Resolution Low High

Bandwidth 5-20 MHz 100MHz

Frequency 1.6-2 GHz 2-8 GHz

Download and upload 5.8 Mbps 14 Mbps

Why 4G is Better than 3G

Better Usage of Multimedia Applications.

Video Conferencing.

Graphical Maps of streets, buildings, and

physical characteristics of a large metropolison a vehicle.

Applications of 4G

4-G in PAKISTAN

Government has already Auctioned the 3G and 4G Licenses

Pakistan is among the latecomers in 3G but not very late in 4G

3 Telecom Companies bided for 3G Technology. i-e. Ufone, Mobilink,

Telenor.

Zong bided highest amount for only 4G Spectrum.

3G auction was postponed by government for more than 1 year due to

some personal political wishes but at last Supreme Court of Pakistan

ordered PTA for the auction of 3G and 4G spectrum and hence it

happened.

Advantages of 4G

Affordable communication services. High speed high capacity and low cost per bit. Support for interactive multimedia, voice ,

streaming video, Internet and other broadbandservices.

Global access, Service portability and scalablemobile services and variety of quality of servicesprovided.

Better spectral efficiency.

Disadvantages 4G

Battery usage is more.

Hard to implement.

Need complicated hardware.

The equipment required to implement a next generation

network is still very expensive.

4G Device Needed to avail services of 4G Technology.

Advantages of 3G

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.

Disadvantages 3GThe cost of cellular infrastructure , upgrading base

stations is very high.

Needs different handsets.

Roaming and data/voice work together has not yet

been implemented.

Power consumption is high.

Requires closer base stations and are expensive.

Spectrum-license costs, network deployment costs and

handset subsidies subscribers are tremendous.

Challenges

Competition with the next forth coming 5G.

5G technology is providing large broadcasting of data in Gigabit which supports almost 65,000 connections.

5G technology would provide better use of available bandwidth.

Conclusion

Mobile…. Multimedia …..

Anytime….. Anywhere…..

Global mobility…..

Integrated wireless…..Personalized services…..

That’s……..