Slide 1: By
ROLL NO. 0701731027
B.TECH FINAL YEAR
VIRA COLLEGE OF ENGINEERING Industrial Training in BSNL,Bijnor INDEX : INDEX Introduction of BSNL
Introduction to GSM
Structure of GSM
Comparison of GSM & CDMA
Specification of GSM
Advantage & Disadvantage of GSM
Conclusion Introduction of BSNL : Introduction of BSNL It is one of the largest cellular Enterprise in India.
It has 66.88 million customer.
Services like UTS ,CMTS & Internet.
Offices across all over india.
Main office in Delhi. Introduction to GSM : Introduction to GSM Stand for GLOBAL SYSTEM FOR MOBILE COMMUNICATION.
Develop by conference of European post telecommunication (CEPT).
There are 36 GSM networks in 22 countries.
Vodafone is The first GSM network to implement data/fax. Structure of GSM : Structure of GSM Detail of GSM Diagram : Detail of GSM Diagram It is divided into Three Parts:
The First part is mobile section
The second part is known as the base station sub system
The Third part is Network Subsystem The Mobile Section : The Mobile Section Contains :
*SIM [Subscriber Identification Module]
- Protected by a password or PIN
- Can be moved from phone to phone – contains key information to activate the phone
*ME [Mobile Equipment]
-Voice and data transmission Base Station Subsystem : Base Station Subsystem Contains:
BTS[ Base Transreceiver station]
-Communicates with Mobile station and BSC
-Consists of Transceivers (TRX) units
BSC[ Base Station Controller]
-Handover for each MS
-Radio Power control
-It communicates with MSC and BTS Network Subsystem : Network Subsystem Contains:
HLR [ Home location Register ]
- permanent database about mobile subscribers in a large service area (generally one per GSM network operator)
VLR [ Visitor Location Register]
-Controls those mobiles roaming in its area
MSC [ Mobile Service Switching Center ]
-Heart of n/w, call routing
EIR [ Equipment Identity Register ]
-Made up of three sub-classes: The White List, The Black List and Gray List
AUC [ Authentication Center ] Slide 10: GSM Vs CDMA Specification of GSM : Specification of GSM Slide 12: Advantage & Disadvantage of GSM Slide 14: CONCLUSION GSM is making our life easy.
Long Distance call charges to fall further.
High Growth in Mobile, Internet & Broadband foreseen till 2012. Slide 15: THANK YOU