GSM and GPRS were early cellular network technologies that enabled low data connectivity to mobile phones. GSM connects phones by having them search for nearby cell towers, while GPRS allowed for packet-based data charging and basic internet access. GPRS provided faster data speeds than previous technologies and allowed connecting phone networks to external data networks like the internet. However, data rates were still relatively low, ranging from 56-114kbps for GPRS. Newer technologies like 3G and 4G have provided significantly higher speed mobile connectivity.

1. GSM, GPRS Towards 4G

2. Telemetry System
 Old Communication Systems were
based on VHF

3. Irrigation Directorate
Telemetry Water
DMS Computer Distribution
Computer
Switch
Modem
LAN
ISDN
DSL
IWRM District
Telemetry DMS Water Distribution
Computer Computer
Switch
Modem
LAN

4. GSM
 GSM is a cellular network, which means
that cell phones connect to it by
searching for cells in the immediate
vicinity. There are five different cell
sizes in a GSM network—macro
, micro, pico, femtoand umbrella cells.

5. GPRS, Edge, 3G and
HSDPA what’s the
difference
 They made GSM modems. Does anyone
remember the times we used those horrible
56K modems to connect your desktop to
the internet by plugging it into your phone
line?
 Well at first that Is how they did it with mobile
phones in a roughly similar way too! Very low
data rates of 10kbps and also the fact that
you paid for the time you used the service
were the main down points of this.

6. General packet radio
(service (GPRS
 GPRS usage is charged based on volume of data. This
contrasts with Circuit switching data, which is typically
billed per minute of connection time, regardless of
whether or not the user transfers data during that
period.
 GPRS data is typically supplied either as part of a
bundle (e.g., 5 GB per month for a fixed fee) or on a
pay-as-you-use basis. Usage above the bundle cap is
either charged per megabyte or disallowed. The pay-as-
you-use charging is typically per megabyte of traffic.

7. GPRS
 GPRS is a service that customer has to request
from Vodafone to enable it before it can be
used.
 The GPRS network has been connected to
external data networks, such as the Internet and
corporate Intranets.
 Each external network is given a unique Access
Point Name (APN) that is
 Used by the mobile user to establish the
connection to the required destination network.

8. Wireless Solution Layout
Application Server
Router

9. GPRS
 General Packet Radio Service
 GPRS is a 2G technology that allowed mobile
phones to extend their usability a lot further
than by simply making calls. It is the main
technology behind MMS features that allowed
users to send pictures, sound clips, and even
videos to other MMS capable mobile phones.
 It has even allowed access to a diluted
version of the internet via WAP with speeds
that ranged between 56 and 114 kbps
 GPRS is 115 kb and GSM is only 9.6

10. Evolution of GSM technology