Origin of Cellular Telephony
1947
Bell Laboratories introduced the idea of cellular communications with the police car technology. The basic concept of cellular phones began, when researchers looked at crude mobile (car) phones and realized that by using small cells (range of service area) with frequency reuse they could increase the traffic capacity of mobile phones substantially. However at that time, the technology to do so was nonexistent
1968
AT&T and Bell Labs proposed a cellular system to the FCC of many small, low-powered, broadcast towers, each covering a 'cell' a few miles in radius and collectively covering a larger area. Each tower would use only a few of the total frequencies allocated to the system. As the phones traveled across the area, calls would be passed from tower to tower.
1973 (April)
The first call on a portable cell phone is made by Dr Martin Cooper, a former general manager for the systems division at Motorola, who is also considered the inventor of the first modern portable handset
1979
The first commercial cellular telephone system began operation in Tokyo
1982
FCC authorizes commercial cellular service for the USA
1987
Cellular telephone subscribers exceeded one million and the airways were crowded
1991
Commercial launch of cellular service based on GSM standard in Finland
1947
Bell Laboratories introduced the idea of cellular communications with the police car technology. The basic concept of cellular phones began, when researchers looked at crude mobile (car) phones and realized that by using small cells (range of service area) with frequency reuse they could increase the traffic capacity of mobile phones substantially. However at that time, the technology to do so was nonexistent
1968
AT&T and Bell Labs proposed a cellular system to the FCC of many small, low-powered, broadcast towers, each covering a 'cell' a few miles in radius and collectively covering a larger area. Each tower would use only a few of the total frequencies allocated to the system. As the phones traveled across the area, calls would be passed from tower to tower.
1973 (April)
The first call on a portable cell phone is made by Dr Martin Cooper, a former general manager for the systems division at Motorola, who is also considered the inventor of the first modern portable handset
1979
The first commercial cellular telephone system began operation in Tokyo
1982
FCC authorizes commercial cellular service for the USA
1987
Cellular telephone subscribers exceeded one million and the airways were crowded
1991
Commercial launch of cellular service based on GSM standard in Finland