1. 報告 : 徐健豪 指導教授 : 潘仁義教授 1 SEAMLESS SERVICE PROVISION FOR MULTI HETEROGENEOUS ACCESS LAMBROS SARAKIS AND GEORGE KORMENTZAS, NCSR “DEMOKRITOS” FRANCISCO MOYA GUIRAO, EUROPEAN COMMISSION IEEE Wireless Communications October 2009

2. Outline 2 Introduction Network-Layer Mobility Solutions A Framework for Optimized Handover Operation 3GPP EVOLVED SYSTEM ARCHITECTURE HANDOVER PROCEDURES FOR SEAMLESS SERVICE Conclusion

3. Introduction 3 handover is the key enabling operation for seamless service provision and content delivery in a variety of mobile/wireless access technologies Standardization bodies  3GPP  3GPP2  IEEE  DVB heterogeneous systems  IETF  SIP  MIP

4. Introduction 4 IEEE 1900.4 standard addresses the architectural building blocks residing at the terminal and network sides that provide for efficient decisions for dynamic network reconfigurability Mobility management protocols from IETF for its evolved network architecture  Higher data rate  Lower latency  Improve system capacity and converage  Reduce operation cost

5. Network-Layer Mobility 5 Host-based  MIP  MIPv6  FMIP  HMIP Network-based  PMIP

6. Introduction 6

7. A Framework for Optimized Handover Operation 7 The lack of standardized mechanisms and services facilitating handovers between heterogeneous networks has been addressed by IEEE 802.21 MIHF  Event (MIES)  Command (MICS)  Information service (MIIS)  MIH_SAP

8. A Framework for Optimized Handover Operation 8 The MIHF exploits triggers from the linklayer to  facilitate handover initiation (network discovery, network selection, handover negotiation)and  handover preparation (L2 and L3 connectivity, resource reservation). A vertical handover framework built around  concept of IEEE 802.21  Complemented by modules inspired by IEEE 1900.4

9. A Framework for Optimized Handover Operation 9

10. 3GPP EVOLVED SYSTEM ARCHITECTURE 10 The 3GPP is already addressing the system architecture evolution (SAE) access selection based on combinations of operator policies,user preferences, and access network conditions. EPC(evolved packet core)  Serving Gateway(2G/3G/LTE)  PDN Gateway(3GPP/non-3GPP)  ePDG (untrusted non-3GPP network)

11. 3GPP EVOLVED SYSTEM ARCHITECTURE 11

12. Outline 12 Introduction Network-Layer Mobility Solutions A Framework for Optimized Handover Operation 3GPP EVOLVED SYSTEM ARCHITECTURE HANDOVER PROCEDURES FOR SEAMLESS SERVICE Conclusion

13. 13

14. 14 額外的資訊 Net-work context information

15. 15 觸發資源保留

16. Conclusion 16 This article presents an optimized handover framework that aims to provide seamless service provision and content delivery to mobile users in a Beyond 3G heterogeneous networking environment.

17. THANK TOU FOR LISTENING 17