List of mobile phone generations

This is a list of mobile phone generations:

0G

0G, also known as Mobile radio telephone, are the systems that preceded modern cellular mobile telephony technology.

1G

1G (or 1-G) refers to the first generation of wireless telephone technology (mobile telecommunications). These are the analog telecommunications standards that were introduced in the 1980s and continued until being replaced by 2G digital telecommunications. The main difference between the two mobile telephone systems (1G and 2G), is that the radio signals used by 1G networks are analog, while 2G networks are digital.

2G(EDGE)

2G (or 2-G) is short for second-generation wireless telephone technology. Second generation 2G cellular telecom networks were commercially launched on the GSM standard in Finland by Radiolinja (now part of Elisa Oyj) in 1991.[1] Three primary benefits of 2G networks over their predecessors were that phone conversations were digitally encrypted; 2G systems were significantly more efficient on the spectrum allowing for far greater mobile phone penetration levels; and 2G introduced data services for mobile, starting with SMS text messages. 2G technologies enabled the various mobile phone networks to provide the services such as text messages, picture messages and MMS (multi media messages). All text messages sent over 2G are digitally encrypted, allowing for the transfer of data in such a way that only the intended receiver can receive and read it.

3G

3G, short form of third generation, is the third generation of mobile telecommunications technology.[2] This is based on a set of standards used for mobile devices and mobile telecommunications use services and networks that comply with the International Mobile Telecommunications-2000 (IMT-2000) specifications by the International Telecommunication Union.[3] 3G finds application in wireless voice telephony, mobile Internet access, fixed wireless Internet access, video calls and mobile TV.

3.5G

3.5G is a grouping of disparate mobile telephony and data technologies designed to provide better performance than 3G systems, as an interim step towards deployment of full 4G capability. The technology includes:

4G(LTE)

4G provides, in addition to the usual voice and other services of 3G, mobile broadband Internet access, for example to laptops with wireless modems, to smartphones, and to other mobile devices. Potential and current applications include amended mobile web access, IP telephony, gaming services, high-definition mobile TV, video conferencing, 3D television, and cloud computing.

4.5G

4.5G is a grouping of disparate mobile telephony and data technologies designed to provide better performance than 4G systems, as an interim step towards deployment of full 5G capability. [4] The technology includes:

5G

5G denotes the next major phase of mobile telecommunications standards beyond the current 4G/IMT-Advanced standards.

NGMN Alliance or Next Generation Mobile Networks Alliance define 5G network requirements as:

Next Generation Mobile Networks Alliance feel that 5G should be rolled out by 2020 to meet business and consumer demands.[6] In addition to simply providing faster speeds, they predict that 5G networks will also need to meet the needs of new use-cases such as the Internet of Things as well as broadcast-like services and lifeline communications in times of disaster.

See also

References

  1. ↑ "Radiolinja's History". April 20, 2004. Retrieved December 23, 2009.
  2. ↑ ITU (4 July 2002). "IMT-2000 Project - ITU". Retrieved 8 April 2013.
  3. ↑ Clint Smith, Daniel Collins. "3G Wireless Networks", page 136. 2000.
  4. ↑ Tondare, S. M., S. D. Panchal, and D. T. Kushnure (April 2014). "Evolutionary steps from 1G to 4.5 G." (PDF). Retrieved 28 August 2015.
  5. ↑ http://www.techrepublic.com/article/does-the-world-really-need-5g
  6. ↑ https://www.ngmn.org/uploads/media/NGMN_5G_White_Paper_V1_0.pdf
This article is issued from Wikipedia - version of the 11/10/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.