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

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

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

Introduction 4 IEEE 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

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

Introduction 6

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

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  Complemented by modules inspired by IEEE

A Framework for Optimized Handover Operation 9

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)

3GPP EVOLVED SYSTEM ARCHITECTURE 11

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

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14 額外的資訊 Net-work context information

15 觸發資源保留

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.

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