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4G also called as Fourth-Generation Communications System, is a term used to describe the next step in wireless communications. A 4G system can provide a comprehensive IP solution where voice, data and streamed multimedia can be provided to users on an “Anytime, Anywhere” basis. The data transfer rates are also much higher than previous generations.

3g-to-4g14G is the latest phenomenon to metamorphose the cellular superhighway, soon to succeed its predecessors 3G and 2G.G stands for the generation in mobile technology that have come of age maturing down the line over 20 to 30 years. The first generation mobile technology were based on analog telecommunication standards. 2G technology evolved in 1990s, introducing digital circuit switched transmission and SMS text messaging. This was followed by a big leap in the form of 3G, aka IMT-2000 that marked the major advances in mobile technology including efficient data handling enabling video calls, accessing websites in oiginal format and much more. For 3G what better example can you have if not iPhone 3G. 4G system is anticipated to revolutionize the functioning of communication networks with comprehensive and secure IP based solution facilitating voice, data and streamed multimedia Anytime, Anywhere and with much higher data transfer rates than its predecessors.

4G- Blueprint of Goals

4G mobile is under the process of being established according to the set standards. It’s features are more of a blueprint based on goals rather than requirements.  Let’s take a snap of the goals set for 4G

  • Faster data transfer rates
  • Enhanced security measures than its predecessors
  • Reducing blips in transmission when a device is moved from one networks coverage to another
  • 4G mobile networks should also use a network based on the IP address system that is used for Internet

One World One device: Global roaming in 4G

4g-technology

The fourth generation would completely transform the mobile phone networks, in to end to end IP based networks, couple this with the arrival of IPv6.  With a unique IP address for all devices in the world, it would initialize full IP based communications from a mobile device right from the core of web.

It would truly harmonize global roaming, super high speed connectivity and transparent end user performance on every mobile communications deice in the world.

Once on the stage is set, 4G would offer 100 Mbps to roaming mobile device globally and around 1 Gbps to a stationary device. Clearly, this could have wider implications including overwhelming wireless performances like enhanced video conferencing, streaming panoramic video and much more.

The giant leap would require a massive infrastructural makeover in the phone networks – multiplying the traffic load on the internet as a whole. 4G needs swifter backbones and oceanic links for a smooth run. For paralleling things, think of 1 billion 100mb nodes attached to a network over night.

Who’s using 4G?

There are two major systems in U.S, which are using the 4G mobile technology  – WiMax, backed by Clearwire and Long Term Evolution or LTE. WiMax’s majority owner is Sprint Nextel. They had started testing services in Baltimore in 2008 and waiting to expand their coverage over 80 cities by the end of 2010.

Long Term Evolution is backed by Verizon. According to cnet, Verizon has completed initial 4G wireless test, but not available for widespread use until 2012.

WiLAN and 4G Network technologies have signed a U.S $ 31 million purchase order as a part of 5 year supply agreement to build a fourth generation cellular network throughout US

Well, 3G is yet to reach its zenith and 4G couldn’t be an overnight phenomenon. In such a situation we can just keep our fingers crossed. There’s an air of speculation that suggest the fourth G would take on the mobile world by 2010. For the time you can just wait and watch our updates.

The main objectives of 4G are:
1)4G will be a fully IP-based integrated system.

2)This will be capable of providing 100 Mbit/s and 1 Gbit/s speeds both indoors and outdoors.

3)It can provide premium quality and high security.

4)4G offer all types of services at an affordable cost.

4G is developed to provide high quality of service (QoS) and rate requirements set by forthcoming applications such as wireless broadband access, Multimedia Messaging, Video Chat, Mobile TV, High definition TV content, DVB, minimal service like voice and data, and other streaming services.

4G technology allow high-quality smooth video transmission. It will enable fast downloading of full-length songs or music pieces in real time.

The business and popularity of 4Gmobiles is predicted to be very vast. On an average, by 2009, this 4Gmobile market will be over $400B and it will dominate the wireless communications, and its converged system will replace most conventional wireless infrastructure.

Data Rates For 4G:

The downloading speed for mobile Internet connections is from 9.6 kbit/s for 2G cellular at present. However, in actual use the data rates are usually slower, especially in crowded areas, or when there is congestion in network.

4G mobile data transmission rates are planned to be up to 20 megabits per second which means that it will be about 10-20 times faster than standard ASDL services.

In terms of connection seeds, 4G will be about 200 times faster than present 2G mobile data rates, and about 10 times faster than 3G broadband mobile. 3G data rates are currently 2Mbit/sec, which is very fast compared to 2G’s 9.6Kbit/sec.

Source:wise Geek4G technology

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