A cellular communication system consists of four major components—namely, a public switched telephone network (PSTN), a mobile telephone switching office (MTSO), cell sites with antenna systems, and mobile subscriber units (MSU) .
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The cellular communications networks are known by their numeric generation: 1G, 2G, 3G, 4G and 5G .
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1G, 2G, 3G, 4G and 5G are the five generations of mobile networks where G stands for Generation, and the number denotes the generation number . 5G is the latest generation, whereas 1G networks are now obsolete. The cellular technologies GSM, UMTS, LTE and NR enable 2G, 3G, 4G and 5G, respectively.
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Generations of Mobile Networks: Explained
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There are four major standards in this category: GSM, the pan-European digital cellular, the North American Interim Standard (IS-54) that later on improved into IS-136 and Japanese digital cellular (JDC) —all of them using TDMA technology and IS-95 in North America, which uses CDMA technology.
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So, what are the speeds delivered in each of the 2G, 3G, 4G and 4G LTE technology? 1G – The analog 1G offered simple telephony service without data. 2G – Delivered digital signal and offered up to 250Kbps speed. Supports voice, text and data services. 3G – At least 200Kbps up to 3Mbps speed .
Read moreWhat is 5G technology in communication?
In telecommunications, 5G is the fifth-generation technology standard for broadband cellular networks , which cellular phone companies began deploying worldwide in 2019, and is the planned successor to the 4G networks which provide connectivity to most current cellphones.
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