mobile technology

M. KarthiyayiniB.E (CSE)

Sri Eshwar College of Engineering

1G WIRELESS TECHNOLOGY

1970’s Analog signals Voice facility Frequency typically 150MHz & above

Poor voice quality Poor battery life Large phone size No security Frequent call drops Poor handoff reliability

Early 1990’s - EuropeGSM Voice & Data services

GSM – Connection Oriented Technology

Bandwidth Digital signals Data rate Video

3G – Multimedia

Applications

ITU

Packet & Circuit

switching

3G technology has taken the gaming to the next level.

Real-time multiplayer gaming is possible in 3G system.

Innovative new services are being added by developer daily.

Not simply rebroadcast of TV or website.

live streams voting

User interaction on multiple levels.

For customer

Video streaming , TV broadcast Video calls , video clips- news , music , sports Enhanced gaming , chat , location services…

For Business

High speed Tele-working / VPN access Sales force automation Video conferencing Real-time financial information

High usability: anytime, anywhere and with any technology.

Support for multimedia services at low transmission cost

Higher bandwidth , tight network security.

The equipment is still very expensive. Carriers and providers have to plan carefully to

make sure that expenses are kept realistic.

By M. Karthiyayini

B.E (CSE)Sri Eshwar College of Engineering