1G (or 1-G) is short for first-generation wireless telephone technology, cellphones. A list of Mobile phone standards or generations is given in the table below GSM ( Global System for Mobile communications: originally from Groupe Spécial Mobile) is the most popular standard for Mobile phones in the The 3rd Generation Partnership Project ( 3GPP) is a collaboration between groups of telecommunications associations to make a globally applicable third generation ( 3G GSM ( Global System for Mobile communications: originally from Groupe Spécial Mobile) is the most popular standard for Mobile phones in the 2G (or 2-G is short for second-generation Wireless Telephone Technology. General Packet Radio Service (GPRS is a Packet oriented Mobile Data Service available to users of Global System for Mobile Communications (GSM and Enhanced Data rates for Global Evolution ( EDGE) Enhanced GPRS ( EGPRS) or IMT Single Carrier ( IMT-SC) Enhanced Data rates for Global Evolution ( EDGE) Enhanced GPRS ( EGPRS) or IMT Single Carrier ( IMT-SC) Circuit Switched Data ( CSD) is the original form of Data transmission developed for the Time division multiple access (TDMA-based Mobile phone High-Speed Circuit-Switched Data (HSCSD, is an enhancement to Circuit Switched Data, the original data transmission mechanism of the GSM Mobile phone system 3G is the third generation of mobile phone standards and Technology, superseding 2 High Speed Packet Access (HSPA is a collection of Mobile telephony protocols that extend and improve the performance of existing UMTS protocols High-Speed Downlink Packet Access ( HSDPA) is a 3G (third generation Mobile telephony Communications protocol in the High-Speed Packet High-Speed Uplink Packet Access (HSUPA is a 3G Mobile telephony protocol in the HSPA family with up-link speeds up to 5 Evolved HSPA (also known as HSPA Evolution, HSPA+, I-HSPA or Internet HSPA) is a wireless broadband standard defined in 3GPP UMTS-TDD is a mobile data network standard built upon the UMTS 3G cellular mobile phone standard using a TD-CDMA, TD-SCDMA, or other 3GPP-approved UMTS-TDD is a mobile data network standard built upon the UMTS 3G cellular mobile phone standard using a TD-CDMA, TD-SCDMA, or other 3GPP-approved Time Division-Synchronous Code Division Multiple Access, or TD-SCDMA, is a 3G mobile telecommunications standard being pursued in the People's Republic of China FOMA ( IPA:/'foʊmə/ officially short for Freedom of Mobile Multimedia Access, is the brand name for the 3G services being offered by Japanese mobile 4G (also known as Beyond 3G) an abbreviation for Fourth-Generation, is a term used to describe the next complete evolution in wireless communications LTE (Long Term Evolution is the next major step in mobile radio communications and will be introduced in 3rd Generation Partnership Project ( 3GPP) Release 8 Evolved UMTS Terrestrial Radio Access ( E-UTRA) is the air interface of 3GPP 's Long Term Evolution (LTE upgrade path for mobile networks Interim Standard 95 (IS-95, is the first CDMA -based digital cellular standard pioneered by Qualcomm. CDMA2000 is a hybrid 25G / 3G technology of mobile Telecommunications standards that use CDMA, a multiple access scheme for Digital The 3rd Generation Partnership Project 2 ( 3GPP2) is a collaboration between telecommunications associations to make a globally applicable third generation ( 3G) Interim Standard 95 (IS-95, is the first CDMA -based digital cellular standard pioneered by Qualcomm. 2G (or 2-G is short for second-generation Wireless Telephone Technology. CDMA2000 is a hybrid 25G / 3G technology of mobile Telecommunications standards that use CDMA, a multiple access scheme for Digital 3G is the third generation of mobile phone standards and Technology, superseding 2 Evolution-Data Optimized or Evolution-Data only, abbreviated as EV-DO or EVDO and often EV, is a Telecommunications standard for the UMB (Ultra Mobile Broadband is the brand name for the project within 3GPP2 to improve the CDMA2000 mobile phone standard for next generation applications and requirements 4G (also known as Beyond 3G) an abbreviation for Fourth-Generation, is a term used to describe the next complete evolution in wireless communications Advanced Mobile Phone System (AMPS is the analog Mobile phone system standard developed by Bell Labs, and officially introduced in the Americas Advanced Mobile Phone System (AMPS is the analog Mobile phone system standard developed by Bell Labs, and officially introduced in the Americas IS-54 and IS-136 are second-generation ( 2G) mobile phone systems known as Digital AMPS (D-AMPS 2G (or 2-G is short for second-generation Wireless Telephone Technology. Push-to-talk ( PTT) also known as Press-to-Transmit, is a method of conversing on half-duplex communication lines including Two-way radio The Mobile Telephone System (MTS was one of the earliest mobile telephone standards The Improved Mobile Telephone Service ( IMTS) is a " 0G " pre-cellular VHF / UHF Radio system that links to the PSTN The Advanced Mobile Telephone System (not to be confused with Advanced Mobile Phone System) was a 0G method of radio communication mainly used in Japanese portable OLT ( Norwegian for Offentlig Landmobil Telefoni, Public Land Mobile Telephony was the first land mobile telephone network in Norway MTD ( Swedish abbreviation for Mobiltelefonisystem D, or Mobile telephony system D) was a manual Mobile phone system for the 450 MHz frequency Autotel (also called PALM, or Public Automated Land Mobile) is a radiotelephone service which was the "missing link" between earlier MTS / For other meanings of the abbreviation see Arp. ARP ( Autoradiopuhelin, "car radio phone" was the first commercially NMT ( Nordisk MobilTelefoni or Nordiska MobilTelefoni-gruppen, Nordic Mobile Telephony in English is the first fully-automatic Cellular phone Hicap is a mobile technology developed by Nippon Telegraph and Telephone as a higher capacity alternative to their NTT mobile solution. Cellular Digital Packet Data ( CDPD) uses unused bandwidth normally used by AMPS Mobile phones between 800 and 900 MHz to transfer data Mobitex is an OSI based Open standard, national public access wireless packet-switched data network DataTAC is a wireless data network technology originally developed by Motorola and deployed in the United States as the ARDIS network 2G (or 2-G is short for second-generation Wireless Telephone Technology. For other uses of Iden/IDEN see Iden (disambiguation Integrated Digital Enhanced Network (iDEN is a mobile telecommunications technology Personal Digital Cellular ( PDC) is a 2G Mobile phone standard developed and used exclusively in Japan. Circuit Switched Data ( CSD) is the original form of Data transmission developed for the Time division multiple access (TDMA-based Mobile phone The Personal Handy-phone System ( PHS) also marketed as the Personal Access System ( PAS) and commercially branded as Xiaolingtong Wideband Integrated Digital Enhanced Network, or WiDEN is a software upgrade developed by Motorola for its IDEN enhanced specialized mobile radio (or ESMR wireless 4G (also known as Beyond 3G) an abbreviation for Fourth-Generation, is a term used to describe the next complete evolution in wireless communications iBurst (or HC-SDMA, High Capacity Spatial Division Multiple Access is a wireless broadband technology developed by ArrayComm. HiperMAN stands for High Performance Radio Metropolitan Area Network and is a standard created by the European Telecommunications Standards Institute ( ETSI) Broadband WiMAX, an approximate acronym of Worldwide Interoperability for Microwave Access, is a Telecommunications technology that provides for the wireless transmission WiBro ( Wi reless Bro adband is a Wireless broadband Internet technology being developed by the South Korean telecoms industry Unlicensed Mobile Access or UMA is the commercial name of the 3GPP Generic Access Network, or GAN standard In Telecommunications and Computer networks, a channel access method or multiple access method allows several terminals connected to the same Frequency Division Multiple Access or FDMA is an Channel access method that is used by radio systems to share a certain Radio spectrum between multiple Orthogonal Frequency-Division Multiple Access ( OFDMA) is a multi-user version of the popular Orthogonal frequency-division multiplexing (OFDM digital modulation scheme This article is about the medium access technology The name "TDMA" is also commonly used in the United States to refer to D-AMPS, which is a mobile telephone Spread-spectrum techniques are methods by which Energy generated in a particular bandwidth is deliberately spread in the Frequency domain, resulting Code division multiple access ( CDMA) is a Channel access method utilized by various radio communication technologies All cellular phone networks worldwide utilize a portion of the radio frequency spectrum designated as Ultra High Frequency, or "UHF" for the transmission All cellular phone networks worldwide utilize a portion of the radio frequency spectrum designated as Ultra High Frequency, or "UHF" for the transmission GSM frequency bands or frequency ranges are the radio spectrum frequencies designated by the ITU for the operation UMTS frequency bands or frequency ranges are the radio spectrum frequencies designated for the operation of the UMTS / HSDPA / HSUPA / HSPA+ Personal Communications Service or PCS is the name for the 1900  MHz radio band used for Digital Mobile phone services in The Specialized Mobile Radio system (SMR is a conventional Two-way radio system or Trunked radio system, operated by a service in the 800 or 900 MHz bands Wireless communication is the transfer of information over a distance without the use of electrical conductors or " Wires quot Basic principle A traditional landline telephone system also known as "plain old telephone service" (POTS, commonly handles both signaling and audio information Technology is a broad concept that deals with a Species ' usage and knowledge of Tools and Crafts and how it affects a species' ability to control and adapt These are the analog cellphone standards that were introduced in the 1980s and continued until being replaced by 2G digital cellphones. The 1980s was the decade spanning from January 1 1980 to December 31 1989. 2G (or 2-G is short for second-generation Wireless Telephone Technology. The main difference between two succeeding mobile telephone systems, 1G and 2G, is that the radio signals that 1G networks use are analog, while 2G networks are digital. 2G (or 2-G is short for second-generation Wireless Telephone Technology.

Although both systems use digital signaling to connect the radio towers (which listen to the handsets) to the rest of the telephone system, the voice itself during a call is encoded to digital signals in 2G whereas 1G is only modulated to higher frequency, typically 150MHz and up.

One such standard is NMT (Nordic Mobile Telephone), used in Nordic countries, Switzerland, Netherlands, Eastern Europe and Russia. NMT ( Nordisk MobilTelefoni or Nordiska MobilTelefoni-gruppen, Nordic Mobile Telephony in English is the first fully-automatic Cellular phone The Nordic countries make up a region in Northern Europe called the Nordic region, consisting of Denmark, Finland, Iceland, Switzerland (English pronunciation; Schweiz Swiss German: Schwyz or Schwiiz Suisse Svizzera Svizra officially the Swiss Confederation The Netherlands ( Dutch:, ˈnedərlɑnt is the European part of the Kingdom of the Netherlands, which consists of the Netherlands the Netherlands Eastern Europe is a general term that refers to the Geopolitical region encompassing the easternmost part of the European continent. Russia (Россия Rossiya) or the Russian Federation ( Rossiyskaya Federatsiya) is a transcontinental Country extending Others include AMPS (Advanced Mobile Phone System) used in the United States and Australia^[1], TACS (Total Access Communications System) in the United Kingdom, C-450 in West Germany, Portugal and South Africa, Radiocom 2000 in France, and RTMI in Italy. The United States of America —commonly referred to as the For a topic outline on this subject see List of basic Australia topics. The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom, the UK or Britain,is a Sovereign state located The Radio Telephone Network C (German Funktelefonnetz-C, abbreviated as C-Netz) was a first generation analog Cellular phone West Germany ( Inf German: Westdeutschland or West-Deutschland) was the common English name for the Federal Republic of Germany ( Portugal, officially the Portuguese Republic (República Portuguesa is a country on the Iberian Peninsula. The Republic of South Africa (also known by other official names) is a country located at the southern tip of the continent of Africa This article is about the country For a topic outline on this subject see List of basic France topics. RTMI ( Radio Telefono Mobile Integrato) was the first mobile communication service in Italy, started in 1973 Italy (Italia officially the Italian Republic, (Repubblica Italiana is located on the Italian Peninsula in Southern Europe, and on the two largest In Japan there were multiple systems. Three standards, TZ-801, TZ-802, and TZ-803 were developed by NTT, while a competing system operated by DDI used the JTACS (Japan Total Access Communications System) standard.

Antecedent to 1G technology is the mobile radio telephone, or 0G.

References

1. ^ AMTA

External links

• [1]