1. GPRS General Packet Radio Service : :..5843 ..5711 : : . .

2. INTERNET&

1G

Advanced mobile phone system

Nordic mobile phone

Total access

2G

Digital amds

GSM

• GSM 900

• GSM 1800

• GSM1900

CDMA

Customized application for mobile enhanced logic

High speed circuit switched data(HSCSD)

General packet radio service (GPRS)

Enhanceddata rates for GSM evolution(EDGE)

3G

Universal mobile telecommunication system(UMTS)

CDMA 2000

4G

All IP networks

3. GPRS

1999 : GPRS

2000: GPRS GSM

28kbps

2001 : GPRS

GPRS

2001-02: 56kbps

2002 : GPRS o 112 kbps

2003 : UMTS

4.

2 (2 G)

(.. Internet)

GSM

GPRS MMS (Multimedia Messaging Service) , &

GPRS

GPRS 5. ( chat ) / 6. GPRS

GPRS

, GSM data

GMSK (Gaussian Minimum Shift Keying) GSM

:

: &

: &

C :

C

7.

GSM , .

GSM BBS(Bussiness Support System) :

) SGSN(ServingGPRS Support Node) ,

) GGSN(GatewayGPRS Support Node) . . Internet

) SGSN

SGSN & GGSN GTA(GPRS Tunneling Protocol), GPRS

8. 9.

GPRS HSCSD( High Speed Circuit Switched Data ) .

.. GSMHSCSD 14,4kbps GSM / HSCSD 14,4kbps , & , GPRS , 14,4kbps , ( 14,4-115,2kbps)

4 ,CS -1 ( bit) CS -4 ( ) GPRS .

, GPRS GPRS .

10.

: 170kbps & 8 , 3 10 GSM

: dial-up modem , on line

& - :

TDMA

11. MEIO

: .. GPRS

: GPRS 8 1

: .

& SMS

12.

• EDGE (Enhanced Data Rates for GSM Evolution)

• 384kbps

• & multimedia

• streaming videoInternet( )

• UMTS (Universal Mobile Telecommunications System)

13.

:

• • GSM (9.6 Kbps)

• • GPRS (115 Kbps)

• • EDGE (384 Kbps)

• • UMTS (2000 Kbps)