The document provides an introduction to cellular technology and the Global System for Mobile Communication (GSM). [1] GSM was established in 1982 to create a common European mobile telephone standard and has become a globally accepted standard. [2] GSM networks use a combination of Time Division Multiple Access (TDMA) and Frequency Division Multiple Access (FDMA) and include mobile stations, base stations, switching centers, databases, and interfaces that allow connectivity to other networks. [3] GSM provides various subscriber services including telephony, data, messaging, and supplementary services.

1. INTRODUCTION TO CELLULAR TECHNOLOGY GSM-GLOBAL SYSTEM FOR MOBILE COMMUNICATION RAHUL GUPTA

2. TRAINING CARRIED AT

5. EVOLUTION OF MOBILE TELEPHONE SYSTEMS

6. PCS-United States 1996 CDMA 1995 GPRS 2003 PCS-1900 1995 Personal digital cellular 1994 Digital cellular system 1992 GSM 1991 American digital cellular 1991 Nordic mobile technology 1986 Total access communication system 1985 American mobile telephone system 1983 Nordic mobile telephone 1981 MOBILE SYSTEM YEAR

7. GSM-NETWORK ARCHITECTURE Mobile station

13. OSI ARCHITECTURE PSTN PSPDN ISDN Um Abis A MS BTS BSC MSC

17. CELL ARCHITECTURE

18. Handover

19. User identity & authentication

20. GSM-subscriber services

23. GSM V/S CDMA 127 MILLION USERS 456 MILLION USERS INTERNATIONAL ROAMING 64-140kbps 56 kbps DATA RATE SOFT MAKE BEFORE BREAK HARD BREAK BEFORE MAKE HANDOVER SPREAD SPECTRUM TECHNOLOGY FDMATDMA TECHNOLOGY USED CDMA GSM PARAMETERS

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