Nokia N9HR, Manual

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27/08/2019 9 © Nokia 2019
Drawn by N. Rao
N9HR
– PDU session support QoS flows of IMS signaling and media
• GTP tunnel for each PDU session
• Each PDU session can have multiple
QoF flows:
• IMS signaling
• IMS media.
5QI determines the type.
• Each QoS flow may have multiple
IMS sessions or IMS session legs.
V-UPF
HPLMN VPLMN
IMS Session 2
IMS Session 1
Media for IMS Session 2
Media for IMS Session 1
5GS PDU session
Party-2
Party-1
Vo5GS
UE
IMS Session 1
IMS Session 2
P-CSCF
IMS-
AGW
Vo5GS
UE
H-UPF
gNB/
N3IWF
QoS Flow = IMS
Signaling
QoS Flow
– IMS media
IMS
Signaling
IMS
Media
2
1
IMS Sessions
(or session legs)
UPF
5GS
PDU
Session