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General Packet Radio Service (GPRS)  A new Dimension to Wireless Communication
Contents of Presentation ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Constraints with existing network ,[object Object],[object Object],[object Object],[object Object],[object Object]
Comparison of GSM & GPRS Amount of data transferred  Duration of connection Billing  Packet - Switched Technology Circuit – Switched Technology Type of Connection GMSK GMSK Modulation Technique 14.4 to 115.2 Kbps 9.6 Kbps Data Rates GPRS GSM
GPRS in INDIA ,[object Object],[object Object],[object Object],[object Object],[object Object]
What is GPRS ? ,[object Object],[object Object]
Benefits of GPRS ,[object Object],[object Object],[object Object],[object Object],[object Object]
Statistical Multiplexing
Salient Features of GPRS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
High Data Rate ,[object Object],[object Object],[object Object],[object Object],[object Object]
GPRS Services ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
GPRS Services (Contd.) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
GPRS Terminals   ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
GPRS Network Elements ,[object Object],[object Object],[object Object],[object Object],[object Object]
GSM SYSTEM ARCHITECTURE MS BTS PSTN ISDN PDN BSC BSC MSC/VLR MS MS BTS BTS GMSC EIR AUC HLR
GPRS SYSTEM ARCHITECTURE BSC SGSN MS BTS BTS Other GPRS PLMN GGSN PDN Gb Gd Gp Gn Gf Gs Gc GGSN EIR HLR+GPRS Register MSC/VLR D SMS-GMSC SMS-INMSC Gi Gr
Interfaces ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
SGSN – Serving GPRS Support Node ,[object Object],[object Object],[object Object],[object Object],[object Object]
GGSN – Gateway GPRS Support Node ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
GPRS Register ,[object Object],[object Object],[object Object]
GPRS Backbone Network  ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
GPRS BACKBONE NETWORK inter-PLMN GPRS backbone External Packet Data Network (PDN) intra-PLMN GPRS backbone intra-PLMN GPRS backbone PLMN1 PLMN2 SGSN SGSN SGSN GGSN GGSN Border gateway Border gateway Gp Gn Gi Gn Gn BTS BTS BSC BSC Host Router  LAN   MS Gi Gn Gn Gp
Protocol Stack GSM RF SNDCP IP / X.25 Application Um Gn Gb MAC RLC LLC IP / X.25 GTP L1 L2 LLC GSM RF Frame Relay MAC RLC BSSGP L1bis BSSGP Frame Relay LLC SNDCP GTP L1bis L1 L2 IP MS BSS (PCU) SGSN GGSN Gi IP UDP/ TCP UDP/ TCP
SNDCP - Sub Network Dependent Convergence Protocol ,[object Object],[object Object],[object Object]
Data Link layer ,[object Object],[object Object],[object Object]
LLC-Logical Link Control ,[object Object],[object Object],[object Object]
RLC/MAC Layer ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Physical Layer ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
BSSGP-(BSS GPRS Application Protocol) ,[object Object]
GTP – GPRS Tunneling Protocol ,[object Object],[object Object],[object Object],[object Object]
Inter working with IP networks  ,[object Object],[object Object],[object Object],[object Object]
GPRS –Internet Connection
CALL ROUTING ,[object Object],[object Object]
DATA CALL ROUTING inter-PLMN GPRS backbone External Packet data network(PDN) Intra-PLMN GPRS backbone intra-PLMN GPRS backbone PLMN1 PLMN2 SGSN SGSN SGSN GGSN GGSN Border gateway Border gateway Gp Gn Gi Gn Gn BTS BTS BSC BSC Host Router  LAN   MS
SESSION  MANAGEMENT IN GPRS
Attachment & Detachment Procedure ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Session Management ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
PDP Context Activation
LOCATION MANAGEMENT IN GPRS
State Model of GPRS MS
Location Management ,[object Object],[object Object],[object Object],[object Object],[object Object]
Routing Area Update ,[object Object],[object Object],[object Object],[object Object]
Types of Routing Area Update ,[object Object],[object Object]
Routing Area Update
Mobility Management ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Channels in GPRS ,[object Object],[object Object],[object Object],[object Object]
Logical Channels
Packet Data Channel(PDCH) ,[object Object],[object Object],[object Object],[object Object]
Multiframe Structure of PDCH Four consecutive TDMA frame forms one block - B0 – B11 Two TDMA frames for transmission of PTCCH - T Two Idle frames - X
Billing GGSN MSC PSTN  BSC SGSN GPRS Network Charging Gateway Mediation MSC Billing
Applications of GPRS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
THANK   YOU

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GPRS

  • 1. General Packet Radio Service (GPRS) A new Dimension to Wireless Communication
  • 2.
  • 3.
  • 4. Comparison of GSM & GPRS Amount of data transferred Duration of connection Billing Packet - Switched Technology Circuit – Switched Technology Type of Connection GMSK GMSK Modulation Technique 14.4 to 115.2 Kbps 9.6 Kbps Data Rates GPRS GSM
  • 5.
  • 6.
  • 7.
  • 9.
  • 10.
  • 11.
  • 12.
  • 13.
  • 14.
  • 15. GSM SYSTEM ARCHITECTURE MS BTS PSTN ISDN PDN BSC BSC MSC/VLR MS MS BTS BTS GMSC EIR AUC HLR
  • 16. GPRS SYSTEM ARCHITECTURE BSC SGSN MS BTS BTS Other GPRS PLMN GGSN PDN Gb Gd Gp Gn Gf Gs Gc GGSN EIR HLR+GPRS Register MSC/VLR D SMS-GMSC SMS-INMSC Gi Gr
  • 17.
  • 18.
  • 19.
  • 20.
  • 21.
  • 22. GPRS BACKBONE NETWORK inter-PLMN GPRS backbone External Packet Data Network (PDN) intra-PLMN GPRS backbone intra-PLMN GPRS backbone PLMN1 PLMN2 SGSN SGSN SGSN GGSN GGSN Border gateway Border gateway Gp Gn Gi Gn Gn BTS BTS BSC BSC Host Router LAN MS Gi Gn Gn Gp
  • 23. Protocol Stack GSM RF SNDCP IP / X.25 Application Um Gn Gb MAC RLC LLC IP / X.25 GTP L1 L2 LLC GSM RF Frame Relay MAC RLC BSSGP L1bis BSSGP Frame Relay LLC SNDCP GTP L1bis L1 L2 IP MS BSS (PCU) SGSN GGSN Gi IP UDP/ TCP UDP/ TCP
  • 24.
  • 25.
  • 26.
  • 27.
  • 28.
  • 29.
  • 30.
  • 31.
  • 33.
  • 34. DATA CALL ROUTING inter-PLMN GPRS backbone External Packet data network(PDN) Intra-PLMN GPRS backbone intra-PLMN GPRS backbone PLMN1 PLMN2 SGSN SGSN SGSN GGSN GGSN Border gateway Border gateway Gp Gn Gi Gn Gn BTS BTS BSC BSC Host Router LAN MS
  • 36.
  • 37.
  • 40. State Model of GPRS MS
  • 41.
  • 42.
  • 43.
  • 45.
  • 46.
  • 48.
  • 49. Multiframe Structure of PDCH Four consecutive TDMA frame forms one block - B0 – B11 Two TDMA frames for transmission of PTCCH - T Two Idle frames - X
  • 50. Billing GGSN MSC PSTN BSC SGSN GPRS Network Charging Gateway Mediation MSC Billing
  • 51.
  • 52. THANK YOU