Mobile Phone Technologies

Evolution

0G (Mobile Radio Telephone System)

• Pre-cellular system• Half-Duplex communication• Use in vehicles• Only 25 channels available• 20Km range

0G (Mobile Radio Telephone System)

1G• First-generation wireless communication

technology standards• Originated in the 80’s• Analog signal (AMPS)• Low reach• Low bit-rate (9600 bps)• High interference• Low traffic capacity• “Brick” Phones - 5 kg weight, battery last 30

minutes of conversation

1G

1G

2G• First great update on mobile communication• Introduced in the 90’s• Fully digital network• GSM – first standard• Better voice encoding• Bit rate: 38 kbps• Less battery power necessary• Lower power emissions• Digital data services• More signal security• More calls on the same network

2G

2.5G• GPRS - Newer and better bandwidth

technology• Bit-rate: 114 kbps

2.75G• EDGE technology• Bit rate: 236,8 kbps

Intermediate technologies: 2G3GNewer and better bandwidth technologies

3G

• WCDMA technology (384kbps)

• Wide brand wireless network

• Packet switching

• Global roaming

• Fast communication, internet access, mobile TV, gaming…

4G• HSPA+ (42 Mbps/11,4 Mbps) - in theory is

possible 168mbps• Much faster receive/send speed and

capacity• Comprehensive and secure all-IP based

solution:--> IP telephony--> Ultra-broadbrand internet access--> Gaming services--> HDTV streamed multimedia

3.5G• HSDPA technology (7.2 Mbps

download / 384 kbps upload)

3.75G• HSPA technology (14,4 Mbps / 5,8

Mbps)

Intermediate technologies: 3G4G