GSM

The GSM technology GLOBAL SYSTEM FOR MOBILE COMMUNICATION JAI SHANKAR MCA~STUDENT

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],It contains

In 2001 the first commercial launch of 3G was done in Japan. With 3G following services are available : ,[object Object],[object Object],[object Object]

introduction ,[object Object],GSM Services TELE SERVICES : Includes mobile phones, emergency calling etc. DATA SERVICES : Includes SMS (Short message service), fax, voicemail, electronic mail. SUPPLYMENTARY SERVICES : I/C & O/G calls, call forwarding, call hold, call waiting, conference, etc.

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Advantages of GSM

GSM Specifications ,[object Object],[object Object],[object Object],[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 architecture now ,[object Object],[object Object],[object Object]

Performs call processing and subscriber related functions. It includes: MSC: Mobile Switching Centre HLR: Home Location Register VLR : Visitor Location Register AuC: Authentication Centre EIR: Equipment Identity Register GMSC: Gateway MSC. Network subsystem

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Network subsystem Mobile switching centre

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Home location register Network subsystem

[object Object],[object Object],[object Object],[object Object],[object Object],Network subsystem Visitor location register

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Authentication centre Network subsystem

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],EQUIPMENT IDENTITY REGISTER Network subsystem

radio subsystem ,[object Object],[object Object],[object Object],[object Object]

base station controller ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],RADIO subsystem

base transceiver station ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],RADIO subsystem

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],OPERATION AND MAINTENANCE SUBSYSTEM

Mobile station (MS) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

The GSM technology From Speech to Radio Transmission Blah… Blah… Blah... Blah... Blah... Blah... Digitizing and Source Coding Channel Coding Interleaving Ciphering Burst Formatting Modulating Demodulating Burst De-formatting Deciphering De-interleaving Channel Decoding Source Decoding

Mobile Identification numbers/ mobile identifiers 1. International Mobile Equipment Identity ,[object Object],[object Object],2. International Mobile Subscriber Identity ,[object Object],[object Object],[object Object]

Continued… 3.Mobile Subscriber ISDN Number (MSISDN) 4.TEMPORARY ADDRESS

[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]

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

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GSM