Gsm ppt
-
Upload
shreya3july -
Category
Technology
-
view
1.751 -
download
2
Transcript of Gsm ppt
![Page 1: Gsm ppt](https://reader033.fdocuments.net/reader033/viewer/2022042815/557d448ad8b42a9c148b4718/html5/thumbnails/1.jpg)
PROJECTREPORT
ONGSM
![Page 2: Gsm ppt](https://reader033.fdocuments.net/reader033/viewer/2022042815/557d448ad8b42a9c148b4718/html5/thumbnails/2.jpg)
OVERVIEW OF MTNL
MTNL was set up on 1st April, 1986 by government of India to upgrade
the quality of telecom services.
WEBSITE- http:// www.mtnl.net.in
![Page 3: Gsm ppt](https://reader033.fdocuments.net/reader033/viewer/2022042815/557d448ad8b42a9c148b4718/html5/thumbnails/3.jpg)
WHAT IS GSM ?
Global system for mobile communication , a mobile phone
system based on multiple radio cells.
Two main standards :-1. GSM 900 – Designed for extensive radio coverage in rural
areas2. DCS 1800 – Designed for radio coverage in areas with very
high subscriber density
![Page 4: Gsm ppt](https://reader033.fdocuments.net/reader033/viewer/2022042815/557d448ad8b42a9c148b4718/html5/thumbnails/4.jpg)
WHAT IS GPRS?
It is new non voice value added services that allows information to be
sent and received across a mobile telephone network.
![Page 5: Gsm ppt](https://reader033.fdocuments.net/reader033/viewer/2022042815/557d448ad8b42a9c148b4718/html5/thumbnails/5.jpg)
WHAT IS AN EDGE?
Edge- Enhanced data rates for global evolution.It is 3G technology that delivers broadband. It allows consumers to connect to the Internet and send & receive data.
![Page 6: Gsm ppt](https://reader033.fdocuments.net/reader033/viewer/2022042815/557d448ad8b42a9c148b4718/html5/thumbnails/6.jpg)
GSM( Global system for mobile communication )
SMART AND SECURE GSM is so secure & flexible with its functionalities & so easy to manipulate.GSM subscribers are identified by their SIM card.
![Page 7: Gsm ppt](https://reader033.fdocuments.net/reader033/viewer/2022042815/557d448ad8b42a9c148b4718/html5/thumbnails/7.jpg)
SIM CARD
-SIM is removable.-Subscriber inserts it in mobile station unit.-Provide PIN,which is compared with PIN stored within the SIM.
![Page 8: Gsm ppt](https://reader033.fdocuments.net/reader033/viewer/2022042815/557d448ad8b42a9c148b4718/html5/thumbnails/8.jpg)
GSM TELECOMMUNICATION SERVICES
Services offered to GSM subscriber are:-Bearer services( For data only )-Tele services ( For voice & data )- Supplementary services
![Page 9: Gsm ppt](https://reader033.fdocuments.net/reader033/viewer/2022042815/557d448ad8b42a9c148b4718/html5/thumbnails/9.jpg)
CHARACTERISTICS FOR GSM
•Frequency band
•Duplex Distance
•Channel separation
•Modulation
•Transmission rate
•Access Method
![Page 10: Gsm ppt](https://reader033.fdocuments.net/reader033/viewer/2022042815/557d448ad8b42a9c148b4718/html5/thumbnails/10.jpg)
GSM FREQUENCIES
FREQUENCY RANGEGSM900 880-915 MHz paired with 925-960MHz
GSM1800 1710-1785MHz paired with 1805-1880MHz
GSM1900 1850-1910MHz paired with 1930-1990MHz
![Page 11: Gsm ppt](https://reader033.fdocuments.net/reader033/viewer/2022042815/557d448ad8b42a9c148b4718/html5/thumbnails/11.jpg)
GSM ARCHITECTURE
![Page 12: Gsm ppt](https://reader033.fdocuments.net/reader033/viewer/2022042815/557d448ad8b42a9c148b4718/html5/thumbnails/12.jpg)
GSM ARCHITECTUREGSM system is basically designed as combination of 3 subsystems:-Switching subsystem ( SSS )-Radio subsystem ( RSS )-Operation and maintenance subsystem (OMS )
![Page 13: Gsm ppt](https://reader033.fdocuments.net/reader033/viewer/2022042815/557d448ad8b42a9c148b4718/html5/thumbnails/13.jpg)
COMPONENTS OF RSSRSS consists of :-Mobile Equipment (ME)-Base Station (BS)-Radio Interface (Um) BS includes :-Base Transceiver Station (BTS)-Base Station Controller (BSC)-Transcoding & Rate Adaptation Unit (TRAU)
![Page 14: Gsm ppt](https://reader033.fdocuments.net/reader033/viewer/2022042815/557d448ad8b42a9c148b4718/html5/thumbnails/14.jpg)
COMPONENTS OF SSS
SSS Consists Of :
-Mobile Services Switching Centre (MSC)-Home Location Register (HLR)-Visitor Location Register (VLR)-Authentication Centre (AC)-Equipment Identification Register (EIR)
![Page 15: Gsm ppt](https://reader033.fdocuments.net/reader033/viewer/2022042815/557d448ad8b42a9c148b4718/html5/thumbnails/15.jpg)
OMS ( OPERATION & MAINTENANCE CENTER )
An OMS consists of one or more operation & maintenance center.
-The OMC is connected to all equipment in the switching system & to the BSC. -The implementation of OMC is called the operation and support system (OSS). -The OSS is the functional entity from which n/w operator controls the system.
![Page 16: Gsm ppt](https://reader033.fdocuments.net/reader033/viewer/2022042815/557d448ad8b42a9c148b4718/html5/thumbnails/16.jpg)
GSM NETWORK AREAS
![Page 17: Gsm ppt](https://reader033.fdocuments.net/reader033/viewer/2022042815/557d448ad8b42a9c148b4718/html5/thumbnails/17.jpg)
NETWORK AREA
CELL: is the area covered by one base transceiver station.
Location Area: is the group of cells.
MSC/ VLR service area: represents the part of GSM network that is covered by one MSC.
![Page 18: Gsm ppt](https://reader033.fdocuments.net/reader033/viewer/2022042815/557d448ad8b42a9c148b4718/html5/thumbnails/18.jpg)
VALUE ADDED SERVICES
-Call Waiting
-Call Divert
-Voice Response Services
![Page 19: Gsm ppt](https://reader033.fdocuments.net/reader033/viewer/2022042815/557d448ad8b42a9c148b4718/html5/thumbnails/19.jpg)
JOINT VENTURES OF MTNL
-United Telecom Limited (UTL)
- Mahanagar Telephone Mauritius Limited (MTML)
-MTNL-STPI IT Services Limited
- Millenium Telecom Limited(MTL)
![Page 20: Gsm ppt](https://reader033.fdocuments.net/reader033/viewer/2022042815/557d448ad8b42a9c148b4718/html5/thumbnails/20.jpg)
THANKS