1. General Packet Radio Service (GPRS) A new Dimension to Wireless Communication

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

8. Statistical Multiplexing

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

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

32. GPRS –Internet Connection

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

35. SESSION MANAGEMENT IN GPRS

38. PDP Context Activation

39. LOCATION MANAGEMENT IN GPRS

40. State Model of GPRS MS

44. Routing Area Update

47. Logical Channels

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

52. THANK YOU