Global System Mobile

Global System Mobile, GSM, 2G 7.1 General Concept for GSM System Development Development of the fundamental technology for GSM started in the Nordic countries in the 1980s, led by Ericsson and then transferred to a working group of standardization body ‘Groupe Special Mobile’ (GSM) within the Conference Europeenne des Postes et Telecommunications (CEPT) standard committees. Since the standardization of the basic GSM900, the GSM system has experienced extensive modifications in order to address increasing end-user requirements presented by mobile operators participating in standardization bodies. The main part of further standardization of the GSM system was conducted in the European Telecommunications Standards Institute (ETSI) Special Mobile Group (SMG) until 2000 and since then by the 3rd Generation Partnership Project (3GPP). One of the major objectives of the GSM standard was to create a digital system suitable for low-cost mass production. The criteria stipulated that the GSM system should provide at least the same or better speech quality and better spectrum efficiency compared to existing (to date) analogue mobile systems. That system, named GSM-Global System Mobile, should provide ISDN services on the fixed side in addition to a number of specific services, named GSM specific services, including: • Global roaming (initially Pan-European) • Authentication (fraud control) • Ciphering (speech, data, signalling) • User confidentiality (ciphered subscriber number on-air-interface). GSM achieved global acceptance by end of the 1990s. While the share of GSM in the modern mobile network is decreasing giving way to new generations, GSM still signifies a considerable source of revenue for mobile operators. 7.2 GSM System Architecture The components of the GSM network are shown in Figure 7.1. The GSM network can be split into three subnetworks: the radio access network (RAN), the core network and the management network. These subnetworks are called subsystems in the GSM standard. Introduction to Mobile Network Engineering: GSM, 3G-WCDMA, LTE and the Road to 5G, First Edition. Alexander Kukushkin. © 2018 John Wiley & Sons Ltd. Published 2018 by John Wiley & Sons Ltd. read more from the pdf book by visiting

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