Nokia N9HR, Manual

Page: 14 / 19

27/08/2019 14 © Nokia 2019
Drawn by N. Rao
LI flavor to N9HR
• LI specific functions:
• LMISF
• BBIFF-C
• BBIFF-U.
• LI specific interfaces:
• LI_Xia
• LI_Xib
• LI_BBI.
• BBIFF-C notifies whenever PDU sessions are created, modified or deleted
for all inbound roamers with N9HR
• BBIFF-U will deliver all user plane packets of QoS flow with MS signaling
user plane packets of QoS flow with media on demand.
• LMISF generates xIRI and xCC with session-leg level correlation.
• LIPF provisions the warrant information to LMISF.
• BBIFF-C and BBIFF-U are not aware of any target specific information.
S-GW
Far end party of IMS session 2
Far end party of IMS session 1
Vo5GS
UE
(Inbound
roaming
targett)
H-UPF
P-CSCF
IMS-AGW
LMISF
LEMF
MDF2 MDF3
LI_Xib
LI_X1
LI_X2
LI_HI2 LI_HI3
HPLMN
VPLMN
IMS Session 1
IMS Session 1
LI_XIa
LI_X3
LEA
LI_HI1
V-UPF
SMF
BBIFF-C
LI_BBI
LICF
LI_ADMF
ADMF
LIPF
IMS Session 2
BBIFF-U