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Mobile networks This Practice Note delivers a concise, quick-reference overview of the wireless telecoms sector for commercial lawyers. Mobile electronic communications networks are commonly called cellular networks because they consist of a mosaic of cells, arranged to let the network exploit its allocated frequency spectrum with maximum efficiency. A cell is the coverage area served by a base station (BS), and neighbouring cells operate on different frequencies to reduce channel interference. In rural locations, cells span wider areas than in dense urban settings, where additional capacity is needed. GSM networks Global System for Mobile communications (GSM—so named as a backronym, the original title being Groupe Spécial Mobile) is the most widespread network standard. GSM is regarded as 2G (second generation, with the first generation being analogue mobile networks). 2G has evolved from the platform first rolled out in 1991, through the arrival of the packet data capability, General Packet Radio Service (GPRS), in 1997 (therefore 2.5G), and further with higher packet data rates from 1999 via the...