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Global system for mobile communications, the
European 900 MHz digital cellular system, that has also expanded to many parts of the
world and into the PCS band (where it is known as DCS1800 or PCS1900). GSM is the biggest
challenger to AMPS technology.
Global System for Mobile Communication
GSM is the most widely deployed of the digital
network structures. It is currently in use by more than 82 million users in 120 countries
around the world. GSM operates on a proven system platform with more than six years of
reliable operation. The open architecture of GSM provides the network operator with the
flexibility to buy only the best and most cost effective of each network component
required. This also makes it possible to easily integrate the latest advancements in
technology. For instance, if the CDMA air interface does prove to be superior, it will be
possible for the GSM networks to adopt CDMA as an air interface, thus providing the most
effective air interface with a proven network architecture. Experiments are now underway
to create a GSM network infrastructure that uses a CDMA air interface. This new
combination is commonly referred to as Third Generation Cellular, or 3G. |