3GPP TS 29.168 V9.2.0 Cell Broadcast Centre Interfaces With the Evolved Packet Core
Network-Based Mobility Management in the Evolved 3GPP Core Network
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Transcript of Network-Based Mobility Management in the Evolved 3GPP Core Network
Network-Based Mobility Management in the Evolved 3GPP Core Network
Outline•Introduction•Proxy Mobile IPv6•IP-based mobility management•The PMIPv6-based mobility architecture
of the evolved packet system•Non-optimized handovers•Optimized handovers•conclusion
Introduction•This article provides an overview of the
evolved packet core (EPC) specifications that use a network-based mobility mechanism based on Proxy Mobile IPv6 (PMIPv6) to enable mobility between access networks.
Proxy Mobile IPv6 (1/2)
Proxy Mobile IPv6 (2/2)•The local mobility anchor (LMA).•The mobile access gateway (MAG).
IP-based mobility management•Network-based mobility management ex: PMIPv6•Client-based mobility management ex: MIP, MIPv6
The PMIPv6-based mobility architecture of the evolved packet system(1/4)
The PMIPv6-based mobility architecture of the evolved packet system(2/4)
•User Equipment (UE)•Packet Data Network Gateway (PDN GW)•Serving Gateway (S-GW)•ACCESS Gateway (A-GW)•Evolved Packet Data Gateway (ePDG)
The PMIPv6-based mobility architecture of the evolved packet system(3/4)
•Support of IPv4 UE.•Simultaneous access to multiple PDNs.•Support for overlapping address spaces of
different PDNs.•Unique UE identification across accesses
on EPC PMIPv6 interface.•Providing a PDN GW address to the target
access.
The PMIPv6-based mobility architecture of the evolved packet system(4/4)
•Subscription Profile Repository (SPR)•Policy and Charging Rules Function
(PCRF)•Policy and Charging Enforcement
Function (PCEF)•Bearer Binding and Event Reporting
Function (BBERF)
Non-optimized handovers (1/2)
Non-optimized handovers (2/2)
Optimized handovers(1/5)
Optimized handovers(2/5)•Mobility Management Entity (MME)•HRPD Access Network (HRPD AN)•HRPD Serving Gateway (HSGW)
Optimized handovers(3/5)•Pre-Registration•Preparation•Execution
Optimized handovers(4/5)
Optimized handovers(5/5)
conclusion
佳句•The EPC assigns to the UE an IP address
that belongs to the PDN to which it is connected and allows the UE to simultaneously access multiple PDNs.
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