Table of Contents1. WHAT IS 3G TECHNOLOGY2. 3G OVERVIEW3. EVOLUTION TOWARDS 3G4. APPLICATIONS OF 3G5. 3G PERFORMANCE ADVANTAGES6. BANDWIDTH AND SPEED7. FUTURE OF 3G8. 3G VS WI-FI9. 3G & WI-FI DEVICES10.3G SUMMARY

WHAT IS 3G TECHNOLOGY?WHAT IS 3G TECHNOLOGY?

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.

3G OVERVIEW3G OVERVIEW

How does 3G work?3-G is a packet switched technology, much like the internet.

There are some basic principles of Radio Transmission Technologies (RTT’S) we need to understand before we can understand how 3G works, these are:

Simplex & duplex TDD & FDD Symmetric & Asymmetric transmission TDMA & CDMA Circuit Switching & Packet Switching 3G geographical cell.

EVOUTIONEVOUTION TOWARDS 3G

Being called 3G or third generation there is inevitably a first and second generation.

FIRST GENERATION(1G) 1G refers to the original analogue mobile phones, which

resembled a brick. They were large, and very heavy, due to the weight of the battery,

there were also very expensive. However, they paved the way for something that was soon to

become a revolution in the technological world, phones would soon start to be smaller, lighter, cheaper, and better.

Operating time increased while battery weight dropped, this was due to advancements in battery technology, as well as circuit design which allowed for much lower power consumption.

EVOUTIONEVOUTION TOWARDS 3G SECOND GENERATION(2G) 2G saw the birth of the digital mobile phone, and a standard

which is greatest success story in the history of the mobile phone to date.

The global system for mobile communication(GSM) is a standard that unified Europe’s mobile phone technologies , it allows one phone to be used throughout Western Europe.

Using TDMA (Time division multiple access), the GSM standard allowed millions of users throughout Europe to travel freely and still to be able to use their phone.

2G worked well for voice communications, it provided data rates of up to 9.6Kbps, good enough for voice, but nowhere near enough for bandwidth demanding modern day media, such as Video and file transformers.

EVOUTIONEVOUTION TOWARDS 3G 2.5 GENERATION(2.5G) Due to the nature of 3G and its incredible complexity and

expensive, the move from 2G to 3G wasn’t going to happen overnight, so the 2.5G standard was developed.

The 2.5G standard had a major technically different feature compared to its predecessor’s it used Packet Switching technology to transmit data.

The General Packet Radio Service (GPRS) replaced GSM as the 2.5G standard. GPRS actually overlays a packet switched technology onto the original GSM circuit switched network.

Data rates of 2.5G can reach 50Kbps, some may think this is a waste of time, and service provides should have gone straight to the goal and implemented 3G, however, the 2.5G standard is a much needed step, as it gives service providers experience of running packet switched networks, and charging on a data bases, rather than a time basis.

APPLICATIONSAPPLICATIONS OF 3G

Wireless internet Audio on demand Electronic postcards Video conferencing Secure mobile commerce transactions Traffic and travelling information-location specific Information service: Games , E-mail, sports, news public transport,

entertainment/gambling, job advertisement Video telephony: point-to-point video services On-line game: Download, rentals review and tips/cheats Live & archive video: Short clips, information, entertainment

APPLICATIONAPPLICATION OF 3G

3G PERFORMANCE ADVANTAGE3G PERFORMANCE ADVANTAGE

  Time to download a 1 MB file:

Fixed line modem: 3 minutes GSM cell phone: 15 minutes Enhanced GSM phone: 1-5 minutes 3G phone (outdoor): 21 seconds 3G phone (indoor): 4 seconds

BANDWIDTH AND SPEEDBANDWIDTH AND SPEED

3G promises increased bandwidth, up to 384 Kbps when a device is stationary or moving at pedestrian speed, 128 Kbps in a car, and 2 Mbps in fixed applications. It is expected that IMT-2000 will provide higher transmission rates: a minimum speed of 2Mbit/s and maximum of 14.4Mbit/s for stationary users, and 348 kbit/s in a moving vehicle

FUTURE OF 3GFUTURE OF 3G

There’s no doubt what is wanted for the future of 3G, and that’s convergence. Leading 3G figureheads around the world want a convergence of the phone networks, to unite the world as a whole with a wireless technology that is compatible across the globe.

There’s a good chance this will happen, as it has already begun to. And it possible won’t be far off that we see perhaps a sub-standard introduced that converges the different 3G standards into one global roaming capable standard.

On the horizon is 4G, which promises to bring true convergence of internet’s IP protocol technology to mobiles. By the time 4G is distributed, IPv6 will be well on its way, and the possibilities will be endless. Ever thought about texting your boiler to tell it to get the heating on just as you leave work?

3G VS WI-FI3G VS WI-FI

3G and WiFi are communication technologies that provide wireless internet access and services to users

3G and wireless are commonly used by devices such as laptop computers, smartphones and PDAs, and other entertainment gadgets

The major difference between wifi and 3G is the way they connect to the internet

Wifi connects to the internet through a wireless network and has a short range.

You may have a private wireless network set up at home, its range depends on your vicinity to your computer router.

Wifi is also commonly available in public places such as cafes, airports and shopping centres.

3G VS WI-FI3G VS WI-FI

3G is a type of cellular network and connects to the internet where ever there is mobile phone service.

Its range is a lot wider than a wireless network. Accessing the internet through your mobile phone provider

usually comes at a greater cost than wifi, especially if you are travelling overseas and using International Roaming.

Accessing the internet through your mobile phone provider usually comes at a greater cost than wifi, especially if you are travelling overseas and using International Roaming.

When using a portable device that is capable of using both Wifi and 3G, such as an iPhone, unless you have turned wifi off your device should always connect to the internet using wifi unless it is not available. If it is not available or you are out of range, your device will then connect using 3G

3G & WI-FI DEVICES3G & WI-FI DEVICES

3G SUMMARY3G SUMMARY

3G mobile is a major opportunity for business, commerce and consumers. Brings together the two fastest growing market sectors - Mobile and Internet Market. Services and standards evolving from 2G to 3G Significant opportunities for value added content and service providers.