報告 : 徐健豪 指導教授 : 潘仁義教授 1 seamless service provision for multi...
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報告 : 徐健豪指導教授 : 潘仁義教授
SEAMLESS SERVICE PROVISIONFOR MULTI HETEROGENEOUS ACCESS
LAMBROS SARAKIS AND GEORGE KORMENTZAS, NCSR “DEMOKRITOS”FRANCISCO MOYA GUIRAO, EUROPEAN COMMISSION
IEEE Wireless Communications • October 2009
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Outline
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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Introduction
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
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Introduction
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
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Network-Layer Mobility
Host-based MIP MIPv6 FMIP HMIP
Network-based PMIP
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Introduction
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A Framework for Optimized Handover Operation
The lack of standardized mechanisms and servicesfacilitating handovers between heterogeneousnetworks has been addressed by IEEE 802.21
MIHF Event (MIES) Command (MICS) Information service (MIIS) MIH_SAP
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A Framework for Optimized Handover Operation
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
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A Framework for Optimized Handover Operation
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3GPP EVOLVED SYSTEM ARCHITECTURE
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)
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3GPP EVOLVED SYSTEM ARCHITECTURE
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Outline
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
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觸發資源保留
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Conclusion
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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THANK TOU FOR LISTENING