3G 3G TechnologyTechnology

What is Spectrum?What is Spectrum? Radio spectrum refers to a range of radio

frequencies. The bandwidth of a radio signal is the difference

between the upper and lower frequencies of the signal.

For example, in the case of a voice signal having a minimum frequency of 200 hertz (Hz) and a maximum frequency of 3,000 Hz,

the bandwidth is 2,800 Hz (3 KHz).

What is 2G?What is 2G?

““Second-generation wireless Second-generation wireless telephone technology”telephone technology”

Features…….Features…….

Features includes:Features includes:- Phone calls- Phone calls- Voice mail- Voice mail- Receive simple email messages- Receive simple email messages

Speed:Speed: 10kb/sec 10kb/sec Time to download a 3min MP3 song:Time to download a 3min MP3 song:

25-35 min 25-35 min

What is ………..What is ………..

3G Technology3G Technology 3G stands for Third-generation 3G stands for Third-generation

wireless telephone technologywireless telephone technology

3G helps to simultaneously transfer both3G helps to simultaneously transfer both voice datavoice data (a telephone call) and (a telephone call) and non-voice datanon-voice data (such as downloading (such as downloading

information, exchanging e-mail, and information, exchanging e-mail, and instant messaging. instant messaging.

Where was 3G spectrum first Where was 3G spectrum first introduced?introduced?

3G services were introduced in 3G services were introduced in EuropeEurope in 2003. in 2003.

JapanJapan was the first country to was the first country to introduce 3G on a large commercial introduce 3G on a large commercial scale. In 2005.scale. In 2005.

How 3G better than 2G?How 3G better than 2G?

Quickly data can be sent and Quickly data can be sent and received.received.

40 times faster.40 times faster.

How 3G better than 2G?How 3G better than 2G? Send and receive video calls,Send and receive video calls, Watch live TV, Watch live TV, Access the internet,Access the internet, Receive emails and download music Receive emails and download music

tracks,tracks, As well as the usual voice call andAs well as the usual voice call and Messaging services found on a mobile Messaging services found on a mobile

phonephone

Features………Features……… Phone calls/faxPhone calls/fax Global roamingGlobal roaming Send/receive large email messagesSend/receive large email messages Navigation/mapsNavigation/maps VideoconferencingVideoconferencing TV streamingTV streaming GPSGPS

Features………Features………

SpeedSpeed:: 144kb/sec-2mb/sec144kb/sec-2mb/sec

Time to download a 3min MP3 song:Time to download a 3min MP3 song: 11sec-1.5min11sec-1.5min

In how many countries does In how many countries does 3G exist?3G exist?

There are about There are about 6060 3G networks 3G networks across across 25 countries.25 countries. In Asia, Europe In Asia, Europe and the USA.and the USA.

What is TRAI's What is TRAI's recommendation on 3G recommendation on 3G

pricing? pricing? The Telecom Regulatory Authority of India The Telecom Regulatory Authority of India

has recommended auctioning radio has recommended auctioning radio frequencies for 3G telecom services at a frequencies for 3G telecom services at a reserve price of reserve price of Rs 3,000 crore Rs 3,000 crore to companies to companies seeking to offer nationwide high-speed seeking to offer nationwide high-speed Internet and streaming video. Internet and streaming video.

Which companies got 3G Which companies got 3G license in India? license in India?

3G spectrum has been provided to 3G spectrum has been provided to GSM playersGSM players

Bharti AirtelBharti Airtel

Vodafone Essar Vodafone Essar

Bharat Sanchar Nigam LimitedBharat Sanchar Nigam Limited

What are the issues regarding 3G for providers and users?

High spectrum licensing fees Huge capital required to build

infrastructure Health impact of electromagnetic waves. Prices are very high Will 2G users switch Takes time to catch up as the service is

new.

What is next?What is next?