Transcript GPRS Intro. To Telecommunication Sama AlBugami 200700451

Intro. To
Telecommunication
Sama AlBugami
200700451
Definition:
WHAT IS GPRS ?
At the start of mobile communication, the mobiles were used to
send messages and for voice call. But now, today the mobile
communication is approximately providing all the features of
computer communication including the internet facility. For the
internet facility on the mobile infrastructure, the companies are
using global standard and this standard is called GPRS (General
Packet Radio Service). This internet standard is based upon the
GSM platform. The data in this service is transfer from source to
destination in the form of mobile packet and this service is being
used on the 2G and 3G mobile communication standards.
An Outline:
 Main features of GPRS
 GPRS Telephones
 Data Transmission Speeds
 The Network
 Security
 Network Protocols Used
Main features of GPRS
 GPRS is providing wide range of services for the mobile users,
because when the users are easily connected with the
internet then they can easily access their bank account details
and also they can check out their emails. Following are the
main features of the GPRS.
 1-Always Internet Access
 2-Multimedia Messaging Service
 3-Broadcasting
 4-Point to Point service
 5-Push to talk
GPRS Telephones
GPRS Telephones
 Approximately all the latest mobile phones are compatible
with the GPRS and we only need to enable its setting. These
settings are enabled by the mobile phone company, because
they need to pair the mobile phone characteristics according
to their GPRS service.
Data Transmission Speeds
Data Transmission Speeds
 The data transmission rate of GPRS is not very high at this
time, because this new technology is going to implement with
advance satellite and when this GPRS will be integrated with
the satellite telephone then the speed and data transmission
will increase. At this stage, GPRS data transmission speed is 56
Kbit/sec to 114 Kbit/sec. this variation in the speed depends
upon the type of mobile and the strength of signals.
The Network
 The network of the GPRS can be upgraded from the existing
GSM network, because we need to add some extra devices to
convert the existing mobile communication network into
GPRS mobile communication network. Hence, we can say that
we don’t need to replace the existing elements of the GSM
and we only need to connect more elements to implement
the GPRS in GSM. In the existing GSM network, we need to
add the following nodes to add the functionality of GPRS.
The Network
 1- SGSN
 2-GGSN
 3-PCU
Security
 The security of the GPRS is very important, because the users
are using their bank account information on the GPRS internet
service. That’s why; the other very vital personal information
is being shared on the GPRS mobile communication.
Network Protocols Used
 1- X.25
 This protocol is providing communication between different
segments of wide area networks (WAN). The history of this protocol
is related to back 1980, when the packet switching networks were
providing communication facilities in different fields of life.
 2-TCP (Transmission Control Protocol) Internet Protocol (IP)
 Internet protocol is very important protocol in mobile internet
(GPRS). This protocol is used for the communication of data across
packet switching network. This protocol is related and based upon
the TCP/IP.
Network Protocols Used
 3-Simple Mail Transfer Protocol (SMTP)
 Simple Mail Transfer Protocol is based upon the internet. We use
this protocol for electronic mails and also for the transmission
across the internet. All the email messages which are sent or
received by the mail servers are transferred from source to
destination due to this SMTP protocol. We will use this protocol for
mail transfer.
 4-ICMP (Internet Control Message Protocol)
 Some protocols are used for sending the data from source to
destination and some protocols are used to control this process. In
other words we can say that this protocol is used for sending error
messages about the services.
Resources:
 Oshua Davies (2011). Implementing SSL/TLS Using Cryptography and PKI. New
York: Wiley. ISBN 978-0470920411
 Stephen A. Thomas (2000). SSL and TLS essentials securing the Web. New York:
Wiley. ISBN 0-471-38354-6
 3GPP web page including standards. Retrieved: 31 July
2012.http://www.3gpp.org/.
 M Freitas. What is GPRS? Retrieved: 31 July
2012.http://www.geekzone.co.nz/content.asp?contentid=207
 GPRS network architecture. Retrieved: 31 July 2012.http://www.radio-
electronics.com/info/cellulartelecomms/gprs/gprs-network-architecture.php
 Matt Curtin. Introduction to Network Security. Retrieved: 31 July 2012.
http://www.interhack.net/pubs/network-security/