cellular system in mobile communication ppt

In 1983, work began to develop a European standard for digital cellular voice telecommunications when the European Conference of Postal and Telecommunications Administrations (CEPT) set up the Groupe Spécial Mobile (GSM) committee and later provided a permanent technical-support group based in Paris. Mr Dupuis and Mr Haug during a GSM meeting in Belgium, April 1992 Beginning in the late 2010s, various carriers worldwide started to shut down their GSM networks. A great number of people in Belgium still use it to date. Subsequently, the 3GPP developed third-generation ( 3G) UMTS standards, followed by the fourth-generation ( 4G) LTE Advanced and the fifth-generation 5G standards, which do not form part of the ETSI GSM standard.Īs a result of the network's widespread use across Europe, the acronym 'GSM' was briefly used as a generic term for mobile phones in France, the Netherlands, Bulgaria and in Belgium.

This expanded over time to include data communications, first by circuit-switched transport, then by packet data transport via General Packet Radio Service (GPRS), and Enhanced Data Rates for GSM Evolution (EDGE). The GSM standard originally described a digital, circuit-switched network optimized for full duplex voice telephony. ĢG networks developed as a replacement for first generation ( 1G) analog cellular networks. By the mid-2010s, it became a global standard for mobile communications achieving over 90% market share, and operating in over 193 countries and territories. It was first implemented in Finland in December 1991.

GSM may also refer to the Full Rate voice codec. GSM is also a trade mark owned by the GSM Association. The Global System for Mobile Communications ( GSM) is a standard developed by the European Telecommunications Standards Institute (ETSI) to describe the protocols for second-generation ( 2G) digital cellular networks used by mobile devices such as mobile phones and tablets. The dots symbolize three clients in the home network and one roaming client.

The GSM logo is used to identify compatible devices and equipment.

Cellular system in mobile communication ppt