11-03-2011, 04:13 PM
Presented by:
Robin Farwahan
gprs my presentation.pptx (Size: 165.03 KB / Downloads: 122)
General Packet Radio Service (GPRS)
What is GPRS ?
General Packet Radio Service (GPRS) is a new bearer service for GSM that greatly improves and simplifies wireless access to packet data networks
General -> not restricted to GSM use
Packet Radio -> enables packet mode communication over air
Service, not System -> existing BSS (partially also NSS) infrastructure is used
Evolution of GPRS
Salient Features of GPRS
Important step on the path to 3G
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.
Comparison of GSM & GPRS
GPRS in INDIA
Vodafone
Videocon
Idea
Tata docomo
Cellone
GPRS Network Elements
GPRS has key network elements as GSNs
SGSN : Serving GPRS Support Node
GGSN : Gateway GPRS Support Node
GPRS Register(also known as Home Location Register)
Working of GPRS
GPRS NETWORK
High Data Rate
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
Benefits of GPRS
New Data Services
High Speed (Data Rate 14.4 – 115 kbps)
Efficient use of radio bandwith (Statistical Multiplexing)
Circuit switching & Packet Switching can be used in parallel
Constant connectivity
Constraints with existing network
Connection setup time too long
Proves expensive for congested traffic utilization
No efficient method for packet transfers
Applications of GPRS
Web browsing
Corporate & Internet Email
Vehicle Positioning
Remote LAN Access
Document Sharing/Collaborative working
Robin Farwahan
gprs my presentation.pptx (Size: 165.03 KB / Downloads: 122)
General Packet Radio Service (GPRS)
What is GPRS ?
General Packet Radio Service (GPRS) is a new bearer service for GSM that greatly improves and simplifies wireless access to packet data networks
General -> not restricted to GSM use
Packet Radio -> enables packet mode communication over air
Service, not System -> existing BSS (partially also NSS) infrastructure is used
Evolution of GPRS
Salient Features of GPRS
Important step on the path to 3G
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.
Comparison of GSM & GPRS
GPRS in INDIA
Vodafone
Videocon
Idea
Tata docomo
Cellone
GPRS Network Elements
GPRS has key network elements as GSNs
SGSN : Serving GPRS Support Node
GGSN : Gateway GPRS Support Node
GPRS Register(also known as Home Location Register)
Working of GPRS
GPRS NETWORK
High Data Rate
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
Benefits of GPRS
New Data Services
High Speed (Data Rate 14.4 – 115 kbps)
Efficient use of radio bandwith (Statistical Multiplexing)
Circuit switching & Packet Switching can be used in parallel
Constant connectivity
Constraints with existing network
Connection setup time too long
Proves expensive for congested traffic utilization
No efficient method for packet transfers
Applications of GPRS
Web browsing
Corporate & Internet Email
Vehicle Positioning
Remote LAN Access
Document Sharing/Collaborative working