Use of cellphone technology

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Cell phone

Compact and portable telephone you can carry around. A cellphone uses radio stations to pass on signals, thus a cellphone is a wireless communication device. Used for direct or indirect communication over a telecommunication system.

Key components of a cellular network

(CBBRMVH=7)

Cellphone, base station, base transceiver station, radio network controller, mobile switching centre, visitor location register, home location register.

CP - Mobile station

BS - supporting structure holding equipment

BTS - handle and process cellphone communication between local and wireless networks

RNC - manage BTS and connected to BTS via landline

MSC - Holds large amount of evidence, calls processed here

VLC - data of subscribers in its location

HLR - individual subscriber data, including : ID, Billing, oces, location and supplemental features.

MSC Functions

Liaise, Supervise, Authorise, Control

Liaise between cellphone system and telephone system

Supervise and control mobile communication

Authorise use of system

Control and provides accounts and system users.

Automatic Registration

Even if handset does not make a call, it automatically triggers the cell tower when a cellphone is switched on and moved from one location to another. It is a continuous process, and a constant interaction.