GSM INTRODUCTION_ADVANTAGES AND DISADVANTAGES_GPRS_ADVANTAGES AND DISADVANTAGES_GENERAL PACKET RADIO SERVICE_UMTS_ADVANTAGES AND DISADVANTAGES

1. GSM
Global System for
Mobile communication

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COURSE OUTLINEGSM
Global System for Mobile communication is a digital mobile network that
is widely used by mobile phone users in Europe and other parts of the world.
GSM uses a variation of time division multiple access(TDMA) and is the most
widely used of the three digital wireless telephony technologies: TDMA, GSM and
code-division multiple access (CDMA).

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GSM digitizes and compresses data, then sends it down a channel with two
other streams of user data, each in its own time slot. It operates at either the
900 megahertz (MHz) or 1,800 MHz frequency band.
GSM, together with other technologies, is part of the evolution of wireless
mobile telecommunications that includes High-Speed Circuit-Switched Data
(HSCSD), General Packet Radio Service (GPRS), Enhanced Data GSM
Environment (EDGE) and Universal Mobile Telecommunications Service
(UMTS).

4. Advantages &
Disadvantages GSM
Network
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5. ADVANTAGES:-
 Can provide roaming services
 Reduces probability of total
corruption of speech
 Offer standard protocol
between components
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6. DISADVANTAGES:-
 Limited data rate capability
 Macrocells affected by
multipath signal loss
 Low capacity
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General Packet Radio Service
GPRS is a packet-based mobile data service on the global system for mobile communications
(GSM) of 3G and 2G cellular communication systems.
It is a non-voice, high-speed and useful packet-switching technology intended for GSM networks General
Packet Radio Services (GPRS) is a packet-based wireless communication service that promises data rates
from 56 up to 114 Kbps and continuous connection to the Internet for mobile phone and computer users.

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Advantages of GPRS :-
 Provide high-speed data service
 Support bursty application like email, traffic, telemetry, broadcast service, and web browsing
 GPRS offers fast connection set up a mechanism to offer a perception of being always on hence the
GPRS devices are referred to as always connected
 GPRS based network has high bandwidth
 Provide point to point services
 Mobility provides wireless internet access
 GPRS is not possible to troubleshoot in case of issues
 Deployment is easier

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 Communication via GPRS is cheaper than through the regular GSM networks
 Constant connection to the internet
 When you surfing the internet it doesn't block incoming calls enables you to make or receive voice calls
while you are browsing

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Disadvantages of GPRS :-
 Limited capacity for all users
 Speed much lower in reality
 Data rates supported are slower compared to the latest wireless standards such as LTE or LTE-advanced
 Mobile station using GPRS can't receive direct GPRS calls
 A network can be affected when a large number of users in the same area utilize the GPRS services at the
same time
 Users may decide to charge based on time rather than volume
 GPRS could be consumed by the public during the public emergency
 Can have high latency, especially text messaging

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 Can not troubleshoot means works or doesn’t
 Expensive to add terminal above 4
 Slower 72 Kbps vs 11 Mbps
 Transit delay

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UNIVERSAL MOBILE TELECOMMUNICATIONS SYSTEM (UMTS)
Universal Mobile Telecommunications System (UMTS) is a third generation mobile cellular system for
networks based on the GSM standard. Developed and maintained by the 3GPP (3rd Generation Partnership
Project).
GPRS is based on Global System for Mobile (GSM) communication and complements existing services
such circuit-switched cellular phone connections and the Short Message Service (SMS)

13. UMTS
ADVANTAGES & DISADVANTAGED
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Advantages:-
 Fast Internet
 Smooth Multimedia Messaging (MMS)
 Enhanced Location based services
 Enhanced Communication (Email, IM, File Sharing)
 Increased Capacity compared to 2G
 MexE (Mobile Executive Environment)- like USIM Application Toolkit, VPN, Conference

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Disadvantage:-
 Poor Video Experience
 Drains battery
 Expensive that GSIM
 Still not Broadband