mobile phone technologies evolution
DESCRIPTION
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 - PowerPoint PPT PresentationTRANSCRIPT
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