GPRS UMTS in the Core Network

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oleh M Irwan Harahap

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  • 1. GPRS/UMTS in the Core Network Free IT Saturday Lesson – Comlabs USDI ITB April 23 rd 2011 Prepared By : Mochamad Irwan Harahap Sr. Engineer – Telco Implementation VAS, PT XL Axiata
  • 2. Topic Covered
    • GPRS System Overview
    • Mobility Management
    • Session Management
    • QoS
    • Roaming
    • Implementation in the Core Network
  • 3. Why Data Services ? Technology Roadmap & Trends
  • 4. Why Data Services ? change the way of communication & expressing yourself
  • 5. Network Architecture
  • 6. PS Core Function Overview - SGSN
    • Mobility Management (MM)
    • Session Management (SM)
    • Payload Handling
    • Charging
    • QoS
    • Security
  • 7. SGSN Hardware Example of SGSN Hardware Huawei & Ericsson SGSN
  • 8. SGSN Hardware – E1/T1 Board Example of SGSN Board
  • 9. PS Core Function Overview - GGSN
    • Session Management (SM)
    • Payload Handling
    • Charging
    • QoS
    • Security
    • RADIUS Support
  • 10. GGSN Hardware Example of GGSN Hardware – Ericsson GGSN
  • 11. APN
    • Access Point Name (APN) is a part of GPRS subscription data which is stored in Home Location Register (HLR) and which is transferred to the SGSN upon the activation of a GMM-Context.
    • APN has to be defined in GGSN too.
    • APN is split into two parts :
      • Network Identifier :
        • Mandatory
        • Example : www.xlgprs.net
      • Operator Identifier :
        • Optional, except for inter-PLMN roaming
        • Example : mnc011.mcc510.gprs
      • Max APN Length : 100 octets.
      • Max Network Identifier Length : 63 octets
      • Max Operator Identifier : 100 – Network Identifier Length
    • There are wildcard APN (*) on HLR. Which can allow user to not request a specific APN to do PDP Context Activation
  • 12. How to access the Internet ? 1. MS has to be attached to network
  • 13. How to access the Internet ? Attach request
  • 14. How to access the Internet ? 2. MS has to have the IP address 3. MS access the web page
  • 15. QoS
    • The GPRS QoS functions, based on Release 99 QoS, including the following:
    • Guaranteed Bit Rate (GBR) admission control
    • Packet Flow Control (PFC)
    • Overload Protection (OLP)
    • Maximum Bit Rate (MBR) policing
    • 3GPP-to-Internet Protocol (IP) QoS mapping rules
    • Queueing, scheduling, and flow control (GSM)
    • Sample of Optional QoS
    • High Speed Downlink Packet Access Support (HSDPA Support)
  • 16. QoS UMTS QoS R99 based on 3GPP TS 23.107
  • 17. QoS Subscribed APN QoS send by HLR on MAP insertSubscriberData message
  • 18. QoS Subscribed APN QoS in HLR
  • 19. Thank You