General Packet Radio Service (GPRS) is a new bearer service for GSM that greatly improves and simplifies wireless access to packet data networks.General Packet Radio Service (GPRS) is a new bearer service for GSM that greatly improves and simplifies wireless access to packet data networks GPRS applies packet radio principal to transfer user data packets in an efficient way b/w MS & external packet data network GPRS applies packet radio principal to transfer user data packets in an efficient way b/w MS & external packet data network

1. Name: Sanket Chougule
Title: General Packet Radio Service
Company Name: Cubez Technocrats Pvt. Ltd.

2. The General Packet Radio System (GPRS) is a new
service that provides actual packet radio access for
mobile Global System for Mobile Communications
(GSM) and time-division multiple access (TDMA) users.
The main benefits of GPRS are that it reserves radio
resources only when there is data to send and it
reduces reliance on traditional circuit-switched
network elements.
Theoretical up to 171.2 kbps transmission speed are
achievable using all eight timeslots at the same time.
No dial-up connection is necessary, GPRS facilitates
instant connections whereby information can be sent
or received.

3. GPRS fully enables Mobile Internet functionality by
allowing interworking between the existing Internet
and the new GPRS network.

4. BTS
BTS
MS
BSC Gb
SGSN
Gf
Gs
Gr
DEIR
MSC/VLR
HLR
Gc
Gn
GGSN
Gi
PDN
Gp GGSN
Other GPRS
PLMN

5. Provision
— GPRS services: Point To Point (PTP) and Point
To Multipoint (PTM).
— Quality of Service (QoS):
1) priority; 2) reliability; 3) delay; 4) user data
throughput; 5)scheduled repeated transmission.
GPRS-Attach and GPRS-Detach
— Attach: MS indicates its presence to the PLMN
(public mobile network) or the purpose of using the
GPRS services.
— Detach: MS indicates to the PLMN that the MS
will no longer be using the GPRS services

6. Registration
By registering the service parameters, the
subscriber optimizes the its present, dynamic
service profile within the limitations of the static
subscription profile.
Erasure
The subscriber erases previously registered
service parameter values from the service profile.
Interrogation
The subscriber interrogates the status/value of
registered service parameters as defined in the
current service profile.
Activation
The subscriber activates each of the registered

7. interworking profiles independently within the
limitations of the subscription profile.
De-activation
The subscriber de-activates the previously
activated interworking profiles independently
within the limitations of the subscription profile.
Invocation and operation
The GPRS service is invoked upon transmission or
reception of GPRS data by subscribers.
PIN and Password Management
Correct subscriber identification has been
confirmed by entry of the current GSM PIN
& GPRS services is offered to a subscriber with
the subscription option of using a password.

8. Provision
— GPRS services: Point To Point (PTP) and Point To
Multipoint (PTM).
— Quality of Service (QoS):
1) priority; 2) reliability; 3) delay; 4) user data
throughput; 5) scheduled repeated transmission.
GPRS-Attach and GPRS-Detach

9. Communications
Use the mobile communications network purely as
a pipe to access messages or information.
— E-mail; fax; unified messaging; internet access
Value-added services (VAS)
Refer strictly to content provided by network
operators to increase the value of their service to
their subscribers.
— E-commerce; banking; financial trading; Retail;
ticket purchasing

10. Location-based applications
Provide the ability to link push or pull information
services with a user's location.
— Navigation; traffic conditions; airline/rail
schedules; location finder
Vertical applications
Apply to systems utilizing mobile architectures to
support the carrying out of specific tasks within
the value chain of a company.
— Freight delivery; fleet management; sales-
force automation
Advertising
— Detach: MS indicates to the PLMN that the MS will

11. New Data Services
High Speed (Data Rate 14.4 – 115 kbps)
Efficient use of radio bandwidth (Statistical
Multiplexing)
Circuit switching & Packet Switching can be used in
parallel
Constant connectivity

12. Important step on the path to 3G
Standardized by ETSI
GPRS is an overlay network over the GSM
Provides Data Packet delivery service
Support for leading internet communication
protocols
Billing based on volume of data transferred
Utilizes existing GSM authentication and privacy
procedures.

13. GPRS uses radio channel i.e. 200 kHz wide
Radio channel carries digital data stream of 271
kbps
This rate is divided into 8 time slots each carrying
34 kbps per time slot
Data rate 14 kbps per time slot achieved after
corrections
GPRS can combine up to 8 time slots giving data
rate of 114 kbps

14. Class A
MS supports simultaneous operation of GPRS and
GSM services
Class B
MS able to register with the n/w for both GPRS &
GSM services simultaneously. It can only use one of
the two services at a given time.
Class C
MS can attach for either GPRS or GSM services

15. GPRS Architecture is same as GSM except few
hardware modifications
GPRS includes GSNs
 GGSN : Gateway GPRS Support Node
 SGSN : Serving GPRS Support Node
GPRS Register