Maandag 18 april 2005

GSM :

Global System for Mobile Communication

Group Spécial Mobile (1982)

1946 – Saint-Louis (Missouri, VS)

autotelefoniesysteem

1970 – Celstructuur

1980 – Eerste compacte toestellen

1ste Generatie (1G)

Analoge systemen in de jaren ’80

2de Generatie (2G)

1986 – Digitale cellulaire netwerk

Max. 171,2 Kbits/sec

3de Generatie (3G)

2003 – UMTS

Max. 1920 kbits/sec

Celgrootte: 10 m tot 35 km

BTS of Base Transceiver Station

BSC of Base Station Controller

MSC of Mobile Switch Centre

HLR of Home Location Register

Europa

900 Mhz of DCS900 of GSM900

1800 Mhz of DCS1800 of GSM1800

Verenigde Staten

1900 Mhz of PCS1900 of GSM1900

850 Mhz NIEUW !

Toestellen

Single-band- 900 Mhz

Dual-Band

- 900 Mhz- 1800 Mhz

Tri-band- 900 Mhz- 1800 Mhz- 1900 Mhz

Quad-Band

- 850 Mhz- 900 Mhz- 1800 Mhz- 1900 Mhz

Enhanced Full Rate Codec (EFR)

Hierdoor 13 kbits/sec ipv 64 kbits/sec

Definitie

Soorten

National Roaming

International Roaming

Inter-standaard Roaming

Beveiligen door

verschillende algoritmen voor …

- Authenticatie- Encryptie- Unieke sleutels

SMS of Short Message Service

- berichtjes

- Max. 160 karakters

MMS of Multimedia Messaging Service

EMS of Enhanced Messaging Service

- foto’s, audio en video

WAP of Wireless Application Protocol

- specificaties voor web-achtige applicaties

GPRS of General Packet Radio Service

- Max. 171,2 kbit/sec

UMTS of Universal Mobile Telecommunications System

- Max. 1920 kbits/sec

Bluetooth

- Draadloze verbinding op korte afstand

GSM-R of GSM-Railway

- Spoorwegen- MORANE (Mobile Radio for Railways in Europe)