Industrial Training In Telecom NetworksFrom: Telcoma Technologies Pvt. Limited, Mohali

Presented By :Mohd Danish1202831055ECE 4th Year

Industry Profile :-

• Telcoma Technologies Pvt. Ltd. is a provider of Telecommunication based solutions, including Network Solutions, System Integration services, Corporate Solutions.

• It also Provide Training Services for Students and Network Professionals

• Currently Telcoma Is Working With Reliance Jio For establishing Its 4th Gen Network In India

• Telcoma Technologies are spread in many countries including Ghana, Madagascar, NIGERIA, ZIMBABWE, CAMEROON, & India.

Modules We Have Covered in The Training :-

• Introduction to Telecommunication System• 1St Generation• 2nd Generation• CDMA Mobiles • 3rd Generation• 4th Generation• Drive Testing• Project On Network Planning

Introduction to

Telecommunicati

on System

Cellular Network Generations

1st

Generation

The First Generation

• Based On TDMA• Fixed No. Of Time slots • Fixed No Of User• Analog System• Poor Communication Quality• No Data Services• Not so popular

TDMA Systems

2nd

Generation

2nd Generations Cellular System• 1st System to use Digital Modulation• Support Voice and circuit Switch Data• Wireless Medium• Based on GPRS and EDGE technology• Undergoes a no of Evolution For Better data speed• Can’t use Voice and Data At the same Time• Based On FDMA system

FDMA

2G Architecture

Network Tower• Used To Provide Coverage• Basically divided in 3 sectors Sometime in 4 For highly

populated Areas• Have Dipole Antennas for BTS to Mobile Station

Connectivity• Have Microwave Antenna for BTS to BTS connectivity• All 3 Dipole antennas are fed with Different frequencies• Dipole antennas are connected to BTS where Dual Radio

Card Are Presents

Main Component Of Antenna Site• BTS • Microwave Rack• Power Backup• Generators• AC• Dipole Antennas• Microwave Antennas• Physical Structure

Main Component Of Antenna Site

Main Component Of Antenna Site

GSM Channels

Channel Names• BCCH – Broadcast Control Channel• FCCH – Frequency Control Channel• SCH – Synchronization Channel• RACH – Random Access Channel• AGCH – Access Grant Channel• PCH – Paging Channel• SDCCH- Standalone Dedicated Control channel• SACCH- Slow associated Control Channel• FACCH- Fast Associated Control Channel

CDMA

CDMA

CDMA• Based On Frequency as well as time division at a same time• Various Codes are formed Due to no of combination of

Frequency and Time slot• Used Where Security Is the Biggest Priority• Uses the principle of spread spectrum communication• Uses Walse Code Technique To generate unique Codes • Use Pseudorandom Generator for spread Spectrum • Provide Voice And Data Services• Use of Frequency Hopping Technique

3rd Generatio

n

3rd Generation• Based On WCDMA• Can Use Voice and Data Simultaneously• Developed for increasing the Data rates • Speed limit Up to 21 Mbps• Increased bandwidth• Increased no of users Capability• Enable Features like Video Calling, video streaming

4th

Generation

4th Generation• Based On OFDMA• Based Of IP Calling• Provide Speed up to 100 Mbps• Design of Data Services • Ultra Broadband bandwidth of 100 MHz• Frequency used - 2 to 8 GHz• Cost Effective Due to no wastage of Frequency

OFDMA

Drive

Testing

Drive Testing • This is one of the most common method to check the

performance of our communication System• In this we just connect and mobile to the system and

monitor the network parameter• This will help us to improve our network and to find out

critical issues in the system• It will monitor each and every aspects of network like

handover, call quality, network quality, signal strength etc.

Drive Testing

Project

Project Objective•To plan network in a particular area for a new company collecting all the required data necessary for the network planning

Key Points To Remember while Establishing a Network

• Population Density• Locality Type (Rural/Urban)• Average Height Of Building and Trees• Average Height of Population• Frequency Reuse Concept• Frequency Planning• Site affective Height • Voice and Data Usage Probability

Raw Data To Plan A NetworkS.No. SITE ID LATITTUDE LONGITUDE VEHICAL LOSS BODY LOSS FOLLIGE LOSS

1TELCH001 30.739517 76.775266HIGH HIGH MEDIUM2TELCH002 30.738097 76.778184MEDIUM HIGH LOW3TELCH003 30.735791 76.778635MEDIUM HIGH LOW4TELCH004 30.735256 76.780394HIGH HIGH LOW5TELCH005 30.737599 76.78151LOW MEDIUM LOW6TELCH006 30.737341 76.78372HIGH HIGH LOW7TELCH007 30.739462 76.783055LOW HIGH LOW8TELCH008 30.739462 76.786725LOW HIGH MEDIUM9TELCH009 30.74066 76.787647HIGH HIGH MEDIUM

10TELCH010 30.740863 76.777562HIGH MEDIUM HIGH11TELCH011 30.740384 76.778807LOW HIGH HIGH12TELCH012 30.740347 76.782369LOW HIGH MEDIUM13TELCH013 30.740457 76.783055MEDIUM HIGH LOW14TELCH014 30.741638 76.777562HIGH HIGH LOW15TELCH015 30.742468 76.781639MEDIUM LOW HIGH16TELCH016 30.743408 76.781103MEDIUM HIGH LOW17TELCH017 30.743962 76.782991HIGH HIGH MEDIUM18TELCH018 30.742984 76.785072LOW HIGH HIGH19TELCH019 30.742671 76.78754MEDIUM HIGH LOW20TELCH020 30.744865 76.785823MEDIUM HIGH MEDIUM

Thank You