Mobile phones

Mobile phones

Industry: Mobile communications

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Mobile phones

General packet radio service (GPRS)

Mobile communications; Mobile phones

A GSM data transmission technique that does not set up a continuous channel from a portable terminal for the transmission and reception of data, but transmits and receives data in packets. GPRS is ...

Global positioning system (GPS)

Mobile communications; Mobile phones

A system of 24 satellites for identifying earth locations, launched by the U.S. By triangulation of signals from three of the satellites, a receiving unit can pinpoint its current location anywhere ...

Electromagnetic radiation

Mobile communications; Mobile phones

Waves of electrical and magnetic energy moving together through space. Also called electromagnetic energy.

Global system for mobile communications (GSM)

Mobile communications; Mobile phones

GSM is a digital cellular phone technology based on TDMA that is the predominant system Europe, the Middle East, Africa, Asia and in parts of America and Canada. First introduced in 1991, the GSM ...

Electromagnetic spectrum

Mobile communications; Mobile phones

The collection of all electromagnetic energy arranged according to frequency and wavelength.

Half-rate

Mobile communications; Mobile phones

A variant of GSM, Half-Rate doubles system capacity by more efficient speech coding.

Base station controller (BSC)

Mobile communications; Mobile phones

The part of the wireless system's infrastructure that controls one or multiple cell sites' radio signals, thus reducing the load on the switch. Performs radio signal management functions for base ...