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5G is not simply an iteration of 4G. It is truly revolutionary and will change everything we know today. For the past 30 years, we have traversed through:
• 1G (the 1980s, AMPS/ETACS) mobile network, which brought analog voice to the masses.
• 2G (the 1990s, GSM/CDMA), which made digital voice available and increased network capacity dramatically with the advancement of the integrated circuit and digital signal processing.
• 3G (the 2000s, WCDMA/EVDO), which combined mobile data with voice enabling customers to make a voice call while replying to email for the first time.
• 4G (the 2010s, LTE), which was all about wireless internet (mobile IP) at higher speed, and desktop applications finally arrived on smartphones.
Nevertheless, there is still segmentation between the communications industry and customers. There are wireline/internet providers, cable TV, and internet service providers, wireless operators, over-the-top (OTT) application providers, and more. Consumers and businesses get connections from various operators on different platforms that often do not communicate with each other. There are significant overhead expenses in the networks, and providers allocate substantial resources to manage these expenses (signaling, billing, and device management).
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