3G

 3G

Definition of 3G:

3G is the third generation of wireless technologies. It comes with enhancements over previous wireless technologies, like high-speed transmission, advanced multimedia access and global roaming. 3G is mostly used with mobile phones and handsets as a means to connect the phone to the Internet or other IP networks in order to make voice and video calls, to download and upload data and to surf the net.

Better of 3G :

3G has the following enhancements over 2.5G and previous networks:

·         Several times higher data speed;

·         Enhanced audio and video streaming;

·         Video-conferencing support;

·         Web and WAP browsing at higher speeds;

·         IPTV (TV through the Internet) support.

3G Technical Specifications:

• The transfer rate for 3G networks is between 128 and 144 kbps (kilobits per second) for devices that are moving fast and 384 kbps for slow ones(like for pedestrians). For fixed wireless LANs, the speed goes beyond 2 Mbps.
• 3G is a set of technologies and standards that include W-CDMA, WLAN and cellular radio, among others.
• 3G follows a pattern of G's that started in the early 1990's by the ITU. The pattern is actually a wireless initiative called the IMT-2000.
• 3G therefore comes just after 2G and 2.5G, the second generation technologies.
• 2G technologies include, among others, the Global System for Mobile (GSM) - the famous mobile phone technology we use today.

Required for Using 3G

• The first thing you require is a device that is 3G compatible.
• This is where the name 3G phone comes from - a phone that has 3G functionality; nothing to do with the number of cameras or the memory it has.
• Your device is connected to the 3G network through its SIM card or its 3G data card, which are both generally provided/sold by the service provider.

Cost of 3G 

• 3G is not very cheap, but it is worthwhile for users that need connectivity on the move.
• Some providers offer it within a somewhat costly package, but most of them have plans where the user pays for the amount of data transferred.
• This is because the technology is packet-based.

3G and Voice:

• Wireless technologies are a way for mobile users to make free or cheap calls worldwide and save a lot of money due to the latest telephony applications and services.
• 3G networks have the advantage of being available on the move, unlike Wi-Fi, which is limited to a few meters around the emitting router.
• So, a user with a 3G phone and a 3G data plan is well-equipped for making free mobile calls.