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Glossary
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FDD
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Frequency Division Duplex
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FOMA
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Freedom of Multimedia Access
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FPLMTS
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Future Public Land Mobile Telecommunications System
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FSP
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Financial Service Provider
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FY
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Financial Year
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GAIT
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GSM/ANSI-136 Interoperability Team
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gateway
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(1)A device that converts one protocol or format to another. A network gateway converts packets from one protocol to another. An application gateway converts commands and/or data from one format to another. An e-mail gateway converts messages from one mail format to another.
(2) A device that acts as a go-between two or more networks that use the same protocols. In this case, the gateway functions as an entry/exit point to the network. Transport protocol conversion may not be required, but some form of processing is typically performed.
(3) An earth station and computer complex that switches data and voice signals between satellites and terrestrial networks.
(4) An earlier name for router.
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GBPS
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Gigabit(s) Per Second
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GERAN
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GSM / EDGE Radio Access Network
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GPRS
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General Packet Radio Service. A packetbased wireless communication service that promises data rates up to 114 Kbit/s and continuous connection to the Internet for mobile phone and computer users. GPRS is based on GSM and will complement existing services such as circuit-switched cellular phone connections and the Short Message Service (SMS).
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GPS
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Global Positioning System
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GSA
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Global Mobile Suppliers Association
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GSM
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(Global System for Mobile Communications) A digital cellular phone technology based on TDMA that is the predominant system in Europe, but also used worldwide. Developed in the 1980s, GSM was first deployed in seven European countries in 1992. It operates in the 900MHz and 1.8GHz bands in Europe and the 1.9GHz PCS band in the U.S. Based on a circuit-switched system that divides each 200 kHz channel into eight 25 kHz time slots, GSM defines the entire cellular system, not just the TDMA air interface.
A fast-growing communications technology, there were more than 250 million GSM users early in 2000. By mid-2004, the one billionth GSM customer was connected. In the U.S., AT&T (formerly Cingular) and T-Mobile offer GSM service.
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GSMA
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GSM Association
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