Scopetelecom.com is a Telecom Company in Chandigarh who offers telecom jobs in chandigarh, telecom training in chandigarh for fresher and experienced.

1. Scope
Telecom
Pvt.ltd
INDUSTRIAL
TRAINING FOR
45 DAYS

2. HISTORY
SCOPE Telecom Private Limited is a
Telecom Company
established in the year 2013.

3. Mission of Scope Telecom is
To assist GSM operators for integration with continually growing
technological trends and work more efficiently by providing globally
qualified services.

4. INTRODUCTION
A basic telecommunication system
consist three primary units
Transmitter that take information and
converts it to a signal.
Transmission medium is also called
the physical channel that carries
signal.
Receiver that takes signal from from
channel and convert it back to usable
information.

5. But what’s cellular?
HLR, VLR,
AC, EIR
MSC
PSTN
BS

6. 1st Generation
• Start to use in 1989
• Call forwarding
• All calls
• No answer
• Engaged
• Unreachable
• Outgoing calls barring
• Incoming calls barring
• Global roaming

7. drawbacks
• Poor voice quality
• Poor battery life
• Large phone size
• No security
• Limited capacity

8. 2nd Generation
• Finished process in 1995
• SMS(Short Message Services)
• Multi Party Calling
• Call holding
• Call waiting
• Mobile data service
• Mobile fax service
• Call line identity
• Advice of charging
• Cell broadcast

9. drawbacks
• These system are unable
to handle
complex data such as
videos

11. 2.5 generation
• 2.5G is a technology between 2nd and 3rd generation,
• Features
• Phone calls
• Send and receive email messages
• Web browsing
• Speed 64-144kbps
• Camera phones
• Take a time to 6 to 9 minutes to download a song

12. 3G GENERATION
• 3G Generation introduce in year 2000
• Data transmission speed increase from
144kbps to 2mbps.
• Typically called smart phones
• Features
• increase its bandwidth
• Increase data transfer rate to accommodate
audio and video files

13. GENERATION
• Capable to provide speed 100mbps-1gbps
• High security
• Provide any kind of service at any time as per user
requirement any where
• battery uses is more
• Hard to implement
• Need complicated hardware
• Expensive equipment

14. 4G GENERATION

15. GSM Architecture

16. GSM Overview

17. GSM Channels
• Physical Channel: Each timeslot on a carrier is referred to as a
physical channel
• Logical Channel: Variety of information is transmitted
between the MS and BTS. Different types of logical channels:
– Traffic channel
– Control Channel
Downlink
Uplink
Channels

18. • BTS – houses the radio transceivers of the cell
and handles the radio-link protocols with the
mobile
• BSC – manages radio resources (channel
setup, handover) for one or more BTSs

19. • MSC – Mobile Switching Center
• The central component of the network
• Like a telephony switch plus everything for a
mobile subscriber: registration,
authentication, handovers, call routing,
connection to fixed networks.
• Each switch handles dozens of cells

20. • HLR – database of all users + current location.
One per network
• VLR – database of users + roamers in some
geographic area. Caches the HLR
• EIR – database of valid equipment
• AuC – Database of users’ secret keys