Nokia N9HR Manual Download Page 17

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27/08/2019

Drawn by N. Rao

Generic LI architecture diagram for VPLMN with home-routed roaming

LEMF

MDF2

MDF3

LIPF

LICF

LEA

LI_X1

LI_X2

LI_HI3

LI_X1

LI-HI1

LI_MDF

LI_ADMF

MDF

ADMF

LI_HI2

BBIFF-C

BBIFF-U

LI_X3

LI_Xia

LI_Xib

LMISF

(IRI-POI, CC-POI)

LI_BBI

BBIFF

• LI specific functions:

• LMISF
• BBIFF-C
• BBIFF-U.

• LI specific interfaces:

• LI_Xia
• LI_Xib
• LI_BBI.

• Limitations:

• One LMISF per S8HR APN or N9HR DNN.
• UE location at the beginning of the call is based on

the XiB notification (of IMS media bearer setup or

PDU session modification)



this may happen after

the SIP INVITE is handled.

• SIP headers used for target identification can be

different from the SIP headers used in IMS.

• SGW, UPF relocation considered.

Summary of Contents for N9HR

Page 1: ...27 08 2019 1 Nokia 2019 Drawn by N Rao S8HR and N9HR a comparison Nagaraja Nag Rao Boca Raton FL ...

Page 2: ... 2019 Nokia 2 Background ...

Page 3: ...PDN GW IMS S CSCF IMS P CSCF IMS P CSCF S CSCF Ici Target PLMN S GW PDN GW IMS P CSCF S CSCF Target VPLMN HPLMN V UPF H UPF N9 Target VPLMN HPLMN UPF IMS S CSCF IMS P CSCF IMS P CSCF S CSCF Ici Target PLMN UPF IMS P CSCF S CSCF Voice service network topologies Non roaming Non roaming LBO LBO HR HR ...

Page 4: ...HPLMN and other networks EUTRAN Serving Gateway BBIFF LTE Uu S1 U S1 MME S11 S8 S6a Gx Rx Gm over SGi ISC Mw Mb over SGi Cx Sh Mw Mg Mi IP TDM Signaling Media Signaling Media UE Inbound Roaming Target P CSCF VPLMN HPLMN LMISF VoLTE UE target P GW P CSCF IMS AGW LMISF LEMF DF2 DF3 ADMF Xib X1_1 X2 HI2 HI3 Xia HPLMN VPLMN EPS Bearer for IMS Signalling EPS Bearer for Media 1 4 5 6 X3 10 Xia 9 Serving...

Page 5: ...ted to the identified intercepted IMS Signalling Bearer to LMISF Packets Media Bearer associated with the intercepted IMS Signalling Bearer X3 Media Packets with the Correlation Number HI3 Media Packets with the Correlation Number Deliver packets of IMS Signalling Bearer related to S8HR APNs to LMISF Remember the intercepted IMS Signalling Bearer Correlated NO Store the SIP message for later use E...

Page 6: ... 2019 Nokia 6 S8HR and N9HR ...

Page 7: ...lane in the VPLMN except perhaps the creation of PDN connection establishment UPF VoNR UE NG RAN N3 AMF SMF NSSF NEF NRF PCF AF N1 N2 N4 Nssf Nnef Nnrf Npcf Naf Namf Nsmf UDM HPLMN hSEPP NSSF NEF NRF Nssf Nnef Nnrf AUSF Nausf PCF Npcf Nudm vSEPP VPLMN N32 SMF Nsmf N4 N6 VoLTE UE MME IMS AGW HSS SGW C P CSCF Other IMS Network Functions P CSCF Other IMS Network Functions I CSCF Voice Services NG Uu ...

Page 8: ... may have multiple IMS sessions or IMS session legs eNB SGW U PGW U HPLMN VPLMN P CSCF IMS AGW VoEPS UE IMS Session 2 IMS Session 1 Media for IMS Session 2 Media for IMS Session 1 EPS Bearer for IMS Signaling EPS Bearer for Media Party 2 Party 1 VoEPS UE IMS Session 1 IMS Session 2 1 2 EPS Bearer for IMS signaling EPS bearer for IMS media IMS Sessions or session legs SGW U ...

Page 9: ... 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 ...

Page 10: ... 2019 Nokia 10 S8HR LI and N9HR I ...

Page 11: ...200 1 IP GTP U UDP RTP UDP IP RTP UDP IP 24000 32000 26000 36000 5 100 1 10 5 175 200 1 2152 2152 12 1 1 1 5 5 100 1 1 5 100 1 10 24000 24001 5 175 200 1 32000 32001 IP GTP U UDP UDP IP 2152 2152 12 1 1 1 5 5 100 1 1 5 100 1 10 5 175 10 1 5 100 1 10 26000 26001 5 175 200 1 36000 36001 EPS Bearer for IMS Media EPS Bearer for IMS Signalling IMS Session 1 IMS Session 2 Media of IMS Session 1 Media of...

Page 12: ...000 32001 IMS Session 1 IMS Session 2 Media of IMS Session 1 Media of IMS Session 2 LI_X2 LI_X3 LI_HI2 IRI LI_HI3 CC Correlated Correlated LI_Xia IMS SignaliNg QoS Flow IMS media QoS Flow 5 100 1 10 5 175 200 1 RTP UDP IP RTP UDP IP 24000 32000 26000 36000 5 100 1 10 5 175 200 1 2152 2152 12 1 1 1 5 5 100 1 1 5 100 1 10 24000 24001 5 175 200 1 32000 32001 UDP IP 5 100 1 10 5 175 10 1 5 100 1 10 26...

Page 13: ...nd user plane packets of media bearer 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 VoEPS UE Inbound roaming targett BBIFF U PGW U P CSCF IMS AGW LMISF LEMF MDF2 MDF3 LI_Xib LI_X1 LI_X2 L...

Page 14: ...ne 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...

Page 15: ...d QoS flow for IMS media with N9HR DNN LEMF MDF2 MDF3 LIPF LICF LEA LI_X1 LI_X2 LI_HI3 LI_X1 LI_X1 LI HI1 LI_MDF LI_ADMF MDF ADMF LI_HI2 LI_X3 LI_Xia LI_Xib LMISF IRI POI CC POI SGW U SGW C BBIFF U BBIFF C LI_BBI SGW BBIFF LEMF MDF2 MDF3 LIPF LICF LEA LI_X1 LI_X2 LI_HI3 LI_X1 LI_X1 LI HI1 LI_MDF LI_ADMF MDF ADMF LI_HI2 LI_X3 LI_Xia LI_Xib LMISF IRI POI CC POI UPF SMF BBIFF U BBIFF C LI_BBI BBIFF ...

Page 16: ... 2019 Nokia 16 Summary ...

Page 17: ...I CC POI LI_BBI BBIFF LI specific functions LMISF BBIFF C BBIFF U LI specific interfaces LI_Xia LI_Xib LI_BBI Limitations One LMISF per S8HR APN or N9HR DNN UE location at the beginning of the call is based on the XiB notification of IMS media bearer setup or PDU session modification this may happen after the SIP INVITE is handled SIP headers used for target identification can be different from th...

Page 18: ...F C is to provide the LMISF address No warrant based provisioning at BBIFF C The scope of LI_X1 management is yet to be defined in TS 33 127 LEMF MDF2 MDF3 LIPF LICF LEA LI_X1 LI_X2 LI_HI3 LI_X1 LI_X1 LI HI1 LI_MDF LI_ADMF MDF ADMF LI_HI2 BBIFF U LI_X3 LI_Xia LI_Xib LMISF IRI POI CC POI LI_BBI BBIFF LI_X1 LI_X1 management BBIFF C ...

Page 19: ...27 08 2019 19 Nokia 2019 Drawn by N Rao ...

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