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GPRS seminar ppt

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Ambili Baby
Ambili Baby

This document provides an overview of GPRS (General Packet Radio Service) components and architecture. It discusses the key components of GPRS including the SGSN (Serving GPRS Support Node) and GGSN (Gateway GPRS Support Node). It also describes the GPRS interfaces and subsystems, including the radio subsystem, network subsystem, and gateway subsystem. The document outlines how GPRS uses the GSM architecture and packet switching to provide faster data transmission compared to GSM and CDMA networks.

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Ambili Baby S5 BCA NO : 1
Goals & Agenda…. GPRS – BASIC ARCHITECHTURE GPRS COMPONENTS •SGSN •GGSN CLASSES OF GPRS DEVICE GPRS INTERFACES
GPRS seminar ppt
4 GATEWAYSUB SYSTEM 3 RADIO SUB SYSTEM 2 NETWORK SUBSYSTEM 1 BASE STATION SUB SYSTEM BTS 1 BTS 2 BSC 1 BSC 2 MSC SGSN TO A NO OF BSC HLR MS 1 MS 2
 USES GSM ARCHITECTURE+ GSN(GPRS SUPPORT NODES) SGSN (SERVICING GSN) GGSN ( GATEWAY GSN)  USING PACKET SWITCHING  USING THE ASYNCHRONOUS TDM WITH MULTIPLE TIME SLOTS AT A TIME ( SAY 8)  FASTER THAN GSM AND CDMA  ENABLE SIMULTANEOUS TRANSMISSION OF PACKETS
ACRONYNMS  GPRS – GENERAL PACKET RADIO SERVICE  MS – MOBILE STATION  BTS – BASE TRANCEIVER STATION  BSC – BASE STATION CONTROLLER  MSC – MOBILE SERVICES SWITCHING CENTER  HLR – HOME LOCATION REGISTER  AUC – AUTHENTICATION CENTER  EIR – EQUIPMENT IDENTITY REGISTER  VLR – VISITOR LOCATION REGISTER
HAVING 4 SUBSYSTEMS GPRS BSS NSS RSS GSS
RADIO STATION SUBSYSTEM • CONSIST OF A NUMBER OF MS, BTS & BSC’S • MS HAVING GPRS CAPABILITY • STORES A CKSN( CIPHER KEY SEQUENCE NUMBER – a logical identity)
NETWORK SUBSYSTEM  IT CONSUST OF A NUMBER OF SGSNs  ALSO CONSIST OF A NUMBER OF MSCs  SGSN - will explain later  EIR (Equipment Identity Register) – STORES THE DETAILS OF THE EQUIPMENTS HELPS IN – AUTHENTICATION, OPERATION & MAINTANANCE OF SUBSYSTEMS
 EACH SGSN & MSC INTHE NSSLAYER IS CONNECTEDTO A NO OF BSC ATTHE RSS LAYER.  HLR – STORESTHE GPRS DATA AND INFORMATION ABOUT THE MOBILE STATION  GR/VLR – STORESTHE MOBILE STATION LOCATION
GATEWAYSUBSYSTEM  CONSIST OF SGSN & GGSN  PROVIDE CONNECTIONSTO OTHER NETWORKS & PDA  PDA – PUBLIC DATA NETWORK
SIM ME BTS BTS BSC BSC HLR HLR HLR HLR MSC SGSN GGSN PSTN, ISDN, PSPDN CSPD N UM Abis BSS NSS
 ROUTING THE PACKET SWITCHED DATA TO AND FROM THE MS  MOBILITY MANAGEMENT  LOCATION MANAGEMENT  AUTHENTICATION AND CHARGING FOR CALLS  STORES THE LOCATION INFORMATION OF THE USER  USER’S PROFILE
 PROVIDE A GATEWAY B/W GPRS & PDN  CONVERT DATA FROM SGSN TO PDP FORMAT( PACKET DATA PROTOCOL)  STORE THE CURRENT SGSN ADDRESS  STORES THE LOCATION OF USER IN ITHS LOCATION REGISTER  PERFORM AUTHENTICATION & CHARGING FUNCTIONS
CLASS 1 GPRS & GPRS CAN BE USED SIMULTANEOUSLY REQUIRES LOT OF BANDWIDTH & VERY COSTLY CLASS 2 CAN USE GSM AND GPRS SIMULTANEOUSLY BUT ONE AT ATIME AUTOMATIC ACTIVATION & DEACTIVATION IS PERFORMED CLASS 3 ONLY HANDLE EITHERVOICE OR DATA NEEDTO SWITCH MANUALLY B/W SERVICES
GPRS ARCHITECHTURE
GPRS INTERFACES  UM – ERROR CORRECTION / ERROR DETECTION  BTS-BSC – CHANNEL ALLOCATION,POWER MEASUREMENT  Gb – CONNECT BSC TO SGSN  Gn – TO MOVE USER PROFILE WHEN THE USER MOVES FROM ONE SGSN TO OTHER  Gp – USER PROFILE AND SIGNALLING INFORMATION B/W SGSN & GGSN OF OTHER AREA
 Gf – USED TO REGISTER THE MS IN THE NETWORK  Gr – B/W SGSN & HLR , USED TO GET THE USER PROFILE  GC – B/W GGSN& HLR , USED BY GGSN TO QUERY USER’S LOCATION & PROFILE TO UPDATE ITS LOCATION REGISTER  Gi – CONNECTS GGSV TO EXTERNAL PDN  Gd – USED TO EXCHANGE SHORT MESSAGES
GPRS seminar ppt
GPRS seminar ppt

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GPRS seminar ppt

  • 2. Goals & Agenda…. GPRS – BASIC ARCHITECHTURE GPRS COMPONENTS •SGSN •GGSN CLASSES OF GPRS DEVICE GPRS INTERFACES
  • 5.  USES GSM ARCHITECTURE+ GSN(GPRS SUPPORT NODES) SGSN (SERVICING GSN) GGSN ( GATEWAY GSN)  USING PACKET SWITCHING  USING THE ASYNCHRONOUS TDM WITH MULTIPLE TIME SLOTS AT A TIME ( SAY 8)  FASTER THAN GSM AND CDMA  ENABLE SIMULTANEOUS TRANSMISSION OF PACKETS
  • 6. ACRONYNMS  GPRS – GENERAL PACKET RADIO SERVICE  MS – MOBILE STATION  BTS – BASE TRANCEIVER STATION  BSC – BASE STATION CONTROLLER  MSC – MOBILE SERVICES SWITCHING CENTER  HLR – HOME LOCATION REGISTER  AUC – AUTHENTICATION CENTER  EIR – EQUIPMENT IDENTITY REGISTER  VLR – VISITOR LOCATION REGISTER
  • 8. RADIO STATION SUBSYSTEM • CONSIST OF A NUMBER OF MS, BTS & BSC’S • MS HAVING GPRS CAPABILITY • STORES A CKSN( CIPHER KEY SEQUENCE NUMBER – a logical identity)
  • 9. NETWORK SUBSYSTEM  IT CONSUST OF A NUMBER OF SGSNs  ALSO CONSIST OF A NUMBER OF MSCs  SGSN - will explain later  EIR (Equipment Identity Register) – STORES THE DETAILS OF THE EQUIPMENTS HELPS IN – AUTHENTICATION, OPERATION & MAINTANANCE OF SUBSYSTEMS
  • 10.  EACH SGSN & MSC INTHE NSSLAYER IS CONNECTEDTO A NO OF BSC ATTHE RSS LAYER.  HLR – STORESTHE GPRS DATA AND INFORMATION ABOUT THE MOBILE STATION  GR/VLR – STORESTHE MOBILE STATION LOCATION
  • 11. GATEWAYSUBSYSTEM  CONSIST OF SGSN & GGSN  PROVIDE CONNECTIONSTO OTHER NETWORKS & PDA  PDA – PUBLIC DATA NETWORK
  • 12. SIM ME BTS BTS BSC BSC HLR HLR HLR HLR MSC SGSN GGSN PSTN, ISDN, PSPDN CSPD N UM Abis BSS NSS
  • 13.  ROUTING THE PACKET SWITCHED DATA TO AND FROM THE MS  MOBILITY MANAGEMENT  LOCATION MANAGEMENT  AUTHENTICATION AND CHARGING FOR CALLS  STORES THE LOCATION INFORMATION OF THE USER  USER’S PROFILE
  • 14.  PROVIDE A GATEWAY B/W GPRS & PDN  CONVERT DATA FROM SGSN TO PDP FORMAT( PACKET DATA PROTOCOL)  STORE THE CURRENT SGSN ADDRESS  STORES THE LOCATION OF USER IN ITHS LOCATION REGISTER  PERFORM AUTHENTICATION & CHARGING FUNCTIONS
  • 15. CLASS 1 GPRS & GPRS CAN BE USED SIMULTANEOUSLY REQUIRES LOT OF BANDWIDTH & VERY COSTLY CLASS 2 CAN USE GSM AND GPRS SIMULTANEOUSLY BUT ONE AT ATIME AUTOMATIC ACTIVATION & DEACTIVATION IS PERFORMED CLASS 3 ONLY HANDLE EITHERVOICE OR DATA NEEDTO SWITCH MANUALLY B/W SERVICES
  • 17. GPRS INTERFACES  UM – ERROR CORRECTION / ERROR DETECTION  BTS-BSC – CHANNEL ALLOCATION,POWER MEASUREMENT  Gb – CONNECT BSC TO SGSN  Gn – TO MOVE USER PROFILE WHEN THE USER MOVES FROM ONE SGSN TO OTHER  Gp – USER PROFILE AND SIGNALLING INFORMATION B/W SGSN & GGSN OF OTHER AREA
  • 18.  Gf – USED TO REGISTER THE MS IN THE NETWORK  Gr – B/W SGSN & HLR , USED TO GET THE USER PROFILE  GC – B/W GGSN& HLR , USED BY GGSN TO QUERY USER’S LOCATION & PROFILE TO UPDATE ITS LOCATION REGISTER  Gi – CONNECTS GGSV TO EXTERNAL PDN  Gd – USED TO EXCHANGE SHORT MESSAGES