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Core network aspects 1
Figure I.6 shows a roaming architecture when a host-based mobility management protocol is considered
while using a direct interface between UE and the C-MMCF in the home network.
Service control functions
C-RACF A-RACF NACF
Home network
Service control functions
Visited network
C-MMCF A-MMCF
m3
NACF A-RACF C-RACF
Core transport functions Access transport functions
A-MMCF C-MMCF
UE Access transport functions Core transport functions
Y.2018(09)_FI.6
Figure I.6 – Roaming architecture for host-based mobility using m3
Figure I.7 shows a roaming architecture when a host-based mobility management protocol is considered
while using the interfaces between UE and the A-MMCF in the visited network and between the A-MMCF in
the visited network and the C-MMCF in the home network.
Service control functions
C-RACF A-RACF NACF
Home network
Service control functions
Visited network
C-MMCF A-MMCF
NACF A-RACF C-RACF
Core transport functions Access transport functions
m2 A-MMCF m1 C-MMCF
UE Access transport functions Core transport functions
Y.2018(09)_FI.7
Figure I.7 – Roaming architecture for host-based mobility using m1 and m2
Figure I.8 shows a roaming architecture when a host-based mobility management protocol is considered
while using the interfaces between UE and the C-MMCF in the visited network and between the C-MMCF in
the visited network and the C-MMCF in the home network.
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