Gsm cell analysis

 Hammad Shafiq
 Roll Number 17656
 Mushtaq Ahmad
 Shernawaz Khan
 Umair Pervaiz
 Mr. Mohammad Asad Khan
Tuesday, June 04, 2013GSM Cell Analysis
Department of I.T and
Telecommunication

Finding cell parameters and calculating path loss by using
HATA and Free Space Path Loss Model

 Telecommunication means communication over distance via electronic equipment.
 Wired and Wireless communication are the fundamental modes of transmission in
telecommunication.
 Mobile communication is the most widely used type of wireless communication.
 GSM is the most commonly used mobile communication standard in the world.

 GSM stands for Global System for Mobile Communication.
 GSM is the first digital cellular mobile communication system.
 Initially GSM was only used for voice communication over circuit switched network.
 Data services like SMS, WAP, Internet over GPRS and EDGE were added later on.

 In GSM the communication was made secure by using encryption.
 Encryption / Decryption is done by means of SIM card by using encryption keys.
 Frequency is the most scarce resource in wireless communication.
 GSM uses the concept of cells, sectors and frequency reuse to overcome the problem
of limited frequency range.
 In GSM each user is assigned 2 channels of 200 kHz, one is used for uplink and the
other for downlink.

 Access Network deals with
communication between user and
Core Network.
 Core Network performs the task of
switching and maintaining database of
users.

 Cell Global Identity
 Mobile Country Code
 Indicates home country of user
 Range 000-999
 Mobile Network Code
 To identify network
 Range 00-99
 LAC
 To identify location areas
 Range 0001H - FFFEH
 Cell Identity
 To identify each cell uniquely
 Range 0 - 65535
 Base Station Identity Code
 Network Color Code
 BTS Color Code
 T3212
 Period of location update
 Default value is 20
 Unit is 6 Mins

 For finding cell parameters android smartphone was used.
 Net Monitor was used to find GPS coordinates.
 GSM Signal Monitoring was used to find LAC, CI, Handover, RSSI.
 Google Maps was used to mark the path of drive test.

 Drive Testing is the process of monitoring
and analyzing cell’s parameters and
performance.
 Drive Testing was performed in
 Rural Area (Telenor site in Dhodial)
 Urban Area (Warid site in Abbottabad)
 Collected data included
 Cell Identity
 Cell Sectors
 Location Area Code
 Serving Cell and Neighboring Cells
 GPS Coordinates
 ARFCN

 HATA Model is the most widely used
RF propagation model
 It is best for predicting the behavior of
radio propagation in cluttered areas
 It calculates path loss by taking into
account
 Percentage of buildings in a path
 Natural terrain features
 It is valid for frequency range 150 –
1500 MHz
 Free Space Path Loss Model is the
fundamental prediction tool.
 It is best for predicting radio
propagation in ideal environment
 It takes into account only distance and
frequency

Rural Area
 The base station under observation in
rural area had the following cell sectors
 Sector 1 – 1551
 Sector 2 – 1552
 Sector 3 – 1553
Urban Area
 The base station under observation in
urban area had the following cell sectors
 Sector 1 – 50521
 Sector 2 – 50522
 Sector 3 – 50523

Gsm cell analysis

More Related Content

What's hot

Viewers also liked

Similar to Gsm cell analysis

Recently uploaded

Gsm cell analysis