Gsm Network

Contents ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

What is GSM ? Global System for Mobile (GSM) is a second generation cellular standard developed to cater voice services and data delivery using digital modulation

GSM: History ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

GSM Services ,[object Object],[object Object],[object Object]

Tele Services • Telecommunication services that enable voice communication via mobile phones • Offered services - Mobile telephony - Emergency calling

Bearer Services ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Supplementary Services ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

GSM System Architecture BSC BSC MSC MS MS MS BTS BTS BTS GMSC PSTN ISDN PDN EIR AUC HLR VLR

GSM System Architecture-I ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

System Architecture Mobile Station (MS) ,[object Object],[object Object],[object Object]

System Architecture Mobile Station (MS) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

System Architecture Mobile Station (MS) contd. ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

System Architecture Base Station Subsystem (BSS) ,[object Object],[object Object],[object Object]

System Architecture Base Station Subsystem (BSS) ,[object Object],[object Object],[object Object],[object Object],[object Object]

System Architecture Base Station Subsystem (BSS) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

System Architecture Network Switching Subsystem(NSS) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

System Architecture Network Switching Subsystem ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

GSM Specifications-1 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

GSM Specification-II ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

GSM Operation Speech decoding Channel decoding De-interleaving Burst Formatting De-ciphering Demodulation Modulation Ciphering Burst Formatting Interleaving Channel Coding Speech coding Radio Interface Speech Speech 13 Kbps 22.8 Kbps 22.8 Kbps 33.6 Kbps 33.6 Kbps 270.83 Kbps

Logical Channels TCH (traffic) CCH (control) BCH CCCH Dedicated 2.4 kbps 4.8 kbps 9.6 kbps FCCH(Frequency correction) SCH(Synchronization) PCH(Paging) RACH(Random Access) AGCH(Access Grant) SDCCH(Stand Alone) SACCH(Slow-associated) FACCH(Fast-associated) Half rate 11.4kbps Full rate 22.8kbps Speech Data

Call Routing ,[object Object],[object Object]

Outgoing Call ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Incoming Call ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Handovers ,[object Object],[object Object],[object Object],[object Object],[object Object]

Security in GSM ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Characteristics of GSM Standard ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Advantages of GSM over Analog system ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

GSM Applications ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Future Of GSM ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Gsm Network

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Gsm Network