GPRS UMTS in the Core Network


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oleh M Irwan Harahap

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GPRS UMTS in the Core Network

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