Wireless technology began in 1947 by researchers in AT & T Bell Labs where the idea of cellular phone was conceived. They went ahead to request for allocation of a widespread large number of radio spectrum frequency to make mobile telephone service feasible. The first wireless network was commissioned in Germany in 1957 and was calles A-Netz and used analog technology at 160MHz which was wireless but not a cellular network.
Only outgoing calls were made possible as at that time, later on receiving incoming calls became possible as long as the location of the mobile station was known.
In April 1973, Martin Cooper invented the first mobile phone handset, a prototype of public cellular network was created in 1977 by AT &T and Bell Labs.
FCC finally authorized commercial cellular service for the USA in 1982 and in 1983, the first American commercial analog cellular service AMPS (advanced mobile phone service) was made commercially available in Chicago.
This was the first cellular mobile network in the world.
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