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3G
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=== Adoption === [[File:Video Call.jpg|thumb|[[Videotelephony]] through cellular networks were made possible using 3G technologies]] [[Japan]] was one of the first countries to adopt 3G, the reason being the process of 3G spectrum allocation, which in Japan was awarded without much upfront cost. The frequency spectrum was allocated in the US and Europe based on auctioning, thereby requiring a huge initial investment for any company wishing to provide 3G services. European companies collectively paid over 100 billion dollars in their spectrum auctions.<ref>{{cite web|url=https://www.nao.org.uk/report/radiocommunications-agency-the-auction-of-radio-spectrum-for-the-third-generation-of-mobile-telephones/|title=Radiocommunications Agency : The Auction of Radio Spectrum for the Third Generation of Mobile Telephones β National Audit Office (NAO) Report|date=2001-10-19|website=National Audit Office|language=en-US|access-date=2019-08-17}}</ref> [[Nepal Telecom]] adopted 3G Service for the first time in southern [[Asia]]. However, its 3G was relatively slow to be adopted in [[Nepal]]. In some instances, 3G networks do not use the same radio frequencies as [[2G]], so mobile operators must build entirely new networks and license entirely new frequencies, especially to achieve high data transmission rates. Other countries' delays were due to the expenses of upgrading transmission hardware, especially for [[UMTS]], whose deployment required the replacement of most broadcast towers. Due to these issues and difficulties with deployment, many carriers could not or delayed the acquisition of these updated capabilities. In December 2007, 190 3G networks were operating in 40 countries and 154 [[HSDPA]] networks were operating in 71 countries, according to the Global Mobile Suppliers Association (GSA). In Asia, Europe, Canada, and the US, telecommunication companies use [[W-CDMA]] technology with the support of around 100 terminal designs to operate 3G mobile networks. The roll-out of 3G networks was delayed by the enormous costs of additional spectrum licensing fees in some countries. The license fees in some European countries were particularly high, bolstered by government auctions of a limited number of licenses and [[sealed bid auction]]s, and initial excitement over 3G's potential. This led to a [[telecoms crash]] that ran concurrently with similar crashes in the [[Dark fibre|fibre-optic]] and [[Dot-com bubble|dot.com]] fields. The 3G standard is perhaps well known because of a massive expansion of the mobile communications market post-2G and advances of the consumer mobile phone. An especially notable development during this time is the [[smartphone]] (for example, the [[iPhone]], and the [[Android (operating system)|Android]] family), combining the abilities of a PDA with a mobile phone, leading to widespread demand for mobile internet connectivity. 3G has also introduced the term "[[mobile internet|mobile broadband]]" because its speed and capability made it a viable alternative for internet browsing, and USB Modems connecting to 3G networks, and now [[4G]] became increasingly common.
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