Cell Phones and the Beginning
A cellular phone is a kind of wireless communication. It is called as a cellular phone as in this type of communication there are many base stations into which a service area is split up. These base stations form multiple cells of the service area. The cellular calls are transferred from one base station to another base station when the user moves from one cell to another cell.
The concept of cellular phones actually started way back in 1947 with the mobile car phones. Researchers wondered about using small cells in a certain service area with the reuse of frequency thus increasing the traffic capacity of mobile phones. The technology for doing this was, however, not available. A cell phone is actually a two-way radio. In the year 1947 AT&T suggested that the Federal Communications Commission should allocate radio-spectrum frequencies for exploring the possibilities of mobile telephone service. At that time due to the lesser number of frequencies available only twenty three phone conversations were possible at a time in a single service area.
The inventor of the first modern portable handset is considered to be Dr.Martin Cooper, a general manager of Motorola which incorporated the police car technology into a portable device. By 1977 AT&T along with Bell Labs had created a prototype cellular system. A trial was made with more than 2000 customers. The first commercial cellular phones system started in 1979 in Tokyo. In the year 1981, Motorola and American Radio telephone started another cellular radio-telephone system in Washington. The next year a commercial analog cellular service otherwise known as AMPS (Advanced Mobile Phone Service) was started in Chicago by Ameritech.
This kind of cellular service really caught on commercially about 37 years later and in 1987 there were more than a million subscribers making the airways congested. This was the time to increase the service by means of splitting the existing cells, allocating a higher number of frequencies or alternatively by upgrading of the technology.
The FCC was not in favor of splitting the existing cells which would lead to a lot of expenditure and giving more bandwidth was also out of the question. They however supported innovations in technology by letting the cellular organizations that had licenses to use newer technology in the 800 MHz bandwidth.
The concept of cellular phones actually started way back in 1947 with the mobile car phones. Researchers wondered about using small cells in a certain service area with the reuse of frequency thus increasing the traffic capacity of mobile phones. The technology for doing this was, however, not available. A cell phone is actually a two-way radio. In the year 1947 AT&T suggested that the Federal Communications Commission should allocate radio-spectrum frequencies for exploring the possibilities of mobile telephone service. At that time due to the lesser number of frequencies available only twenty three phone conversations were possible at a time in a single service area.
The inventor of the first modern portable handset is considered to be Dr.Martin Cooper, a general manager of Motorola which incorporated the police car technology into a portable device. By 1977 AT&T along with Bell Labs had created a prototype cellular system. A trial was made with more than 2000 customers. The first commercial cellular phones system started in 1979 in Tokyo. In the year 1981, Motorola and American Radio telephone started another cellular radio-telephone system in Washington. The next year a commercial analog cellular service otherwise known as AMPS (Advanced Mobile Phone Service) was started in Chicago by Ameritech.
This kind of cellular service really caught on commercially about 37 years later and in 1987 there were more than a million subscribers making the airways congested. This was the time to increase the service by means of splitting the existing cells, allocating a higher number of frequencies or alternatively by upgrading of the technology.
The FCC was not in favor of splitting the existing cells which would lead to a lot of expenditure and giving more bandwidth was also out of the question. They however supported innovations in technology by letting the cellular organizations that had licenses to use newer technology in the 800 MHz bandwidth.
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