5G user PDU session setup

UE already finished initial registration

PCF

GET /nudm-sdm/v1/imsi-2089300007487/sm-data?dnn=internet&plmn-id=20893&single-nssai={\"sst\

PCF need to query UDR to fetch data

UDM

gNB

AMF

POST /namf-comm/v1/ue-contexts/imsi-2089300007487/n1-n2-messagesn1MessageContainer (to UE)PDU session establishment acceptSelected SSC mode: SSC mode 1 PDU session typeQoS rulesSession-AMBRPDU addressS-NSSAIQoS flow descriptionsExtended protocol configuration optionsDNNn2InfoContainer (to gNB)id-UL-NGU-UP-TNLInformation -- UPF User Plane IP addressid-PDUSessionTypeid-QosFlowSetupRequestList

GET /nnrf-disc/v1/nf-instances?dnn=internet&requester-nf-type=AMF&service-names=nsmf-pdusession&snssais={\"sst\

201 created

AMF choose SMF

SMF query NRF to get UDM address / details

UPF

SMF get user subscribed data(session managemrnt)

SMF

NGAP\tPDUSessionResourceSetupResponseuPTransportLayerInformation: gTPTunnel IP = X.X.X.X

200OK NRF addressnsiID=22

UE

NRF

PFCP Session Establishment ResponseF-SEID (UPF User Plane Address)

PFCP Session Update Responses)

\"SessRuleId-10\":\"authSessAmbr\":{\"uplink\":\"1000 Kbps\

NGAP/NAS-5GS UplinkNASTransportPDU session establishment requestPDU session type = IPv4v6SSC mode = 1PDU session ID = 5Request type = initial requestDNN = \"internet\"

POST /nsmf-pdusession/v1/sm-contexts/urn:uuid/modifyuPTransportLayerInformation: gTPTunnel (0)IP = X.X.X.X (gNB user plane IP address)

N2 : Notify gNB establish user plane resourceN1: Notify UE PDU session establish success

200OK NSSF address

200OK N1_N2_TRANSFER_INITIATED

GET /nnrf-disc/v1/nf-instances?requester-nf-type=AMF&target-nf-type=NSSF

PFCP Session Establishment RequestPDR;FAR;QER;UUR

NSSF

CISCO CX Mobility knowledge sharing 5GC - PDU session setup

PFCP Session Update RequestPDR;FAR

SMF query NRF to get AMF address / detailsused for transmit N1/N2 message to gNB/UE

200OK SMF address

NASPDU session establishment accept

GET /nnssf-nsselection/v1/network-slice-information?nf-id=XXX&nf-type=AMF&slice-info-request-for-pdu-session={\"sNssai\":{\"sst\

PSOT: /npcf-smpolicycontrol/v1/sm-policies]

NGAP/NAS-5GS\tPDUSessionResourceSetupRequest

SMF query NRF to get PCF address / details

UDM need to query UDR to fetch data