Page 514 - 5G Basics - Core Network Aspects

1 Core network aspects

Table II.1 – Mapping of MIPv4 network entities with MMCF functions

Entity Functional description Function

Initiates location update signalling MLM-FE
FA Indicates tunnel set-up HDC-FE
Provides a tunnel end point L3HEF
Binds the local mobility information MLM-FE
HA Indicates tunnel set-up HDC-FE
Provides a tunnel end point L3HEF

II.1.2 MIPv6

Mobile IP v6 (MIPv6) requires the UE to support functions specific to mobility. It identifies one network entity:
the home agent (HA).

Table II.2 lists the functions that must be supported by the HA, and matches these functions to those defined
in clause 6.4.

Table II.2 – Mapping of MIPv6 network entities with MMCF functions

Entity Functional description Function

Binds the local mobility information MLM-FE
HA Indicates tunnel set-up HDC-FE
Provides a tunnel end point L3HEF
II.1.3 Proxy MIP

Proxy mobile IP (PMIPv6) does not require the UE to support functions specific to mobility. It identifies two
network entities: the mobility access gateway (MAG) and the local mobility anchor (LMA).
Figure II.2 shows the message flow defined by PMIPv6 for initial attachment. Figure II.3 shows the PMIPv6
signalling for handover.

MN MAG LMA

MN attached
MN attached event
(Acquire MN-Id and profile)
PBU

Accept PBU
(Allocate MN-HNP,
setup BCE and tunnel)
PBA
Accept PBA
setup tunnel and routing
Rtr Sol
Rtr Adv
IP address
configuration
Y.2018(09)_FII.2

Figure II.2 – Signalling flows for PMIPv6 initial attachment

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