5g era network architecture - based on 3gpp release 15
TRANSCRIPT
5G era network architecture - based on 3GPP release 15
Glossary
PDN-GW/PCEF
PLMN
MME
MME
ePDG
HSSAAA
S-GW
EPC
eNodeB
eNodeB
MEUSIM
UE
UE
SWm
S6b
S12
S11
Uu
Uu
S8
S5/S8
S6aS2b
V1-U
V1-U
eCPRI/CPRI
eCPRI/CPRI
S10
X2
X2-C
Xn-C
V1-C
S1-U
S1-C
S1-U
S1-US1-C
V1-C
eNB-DU
eNB-CU
eNB-DU
LTE RAN
E-UTRAN-NR
RU
RU
MEC
MEC
gNodeB
gNodeB
MEUSIM
Ng-eNB-DU
Ng-eNB-CU
Ng-eNB-DU
Ng-eNB-CURU
RU
Xn-U
X2-U
eCPRI/CPRI
eCPRI/CPRI
F1-U
F1-C
F1-U
F1-C
eNB-CU
UPF + PGW-U
SMF
PCF
UDM
UDSF
BSF
SEPP
MME
AMF
N3IWF
MEC
AF
AUSF
NRF
NEF
NWDAF
UDR
CHF
5G-EIR
SMSF
NSSF
SGW
eNodeB
eNodeB
Untrusted non
3GPP access
gNodeB
N6
N3
DN
MECgNodeB
MEUSIM
UE
MEUSIM
UE
S5-U
Nsmf
Namf
Npcf
Nudm
Nudsf
Nbsf
Nsepp
Nnssf
Nausf
Naf
Nnef
Nnwdaf
Nudr
Nchf
N5g-eir
Nsmsf
Snrf
N3
N2
N1
NWu
Xn-U
X2-U
Uu
Uu
N1
N1
N1
N2
S5-C
N9
N4
V1-U
V1-U
Y2
Y1
N14
NWu
eCPRI/CPRI
eCPRI/CPRI
eCPRI/CPRI
eCPRI/CPRI
X2
Xn-C
X2-C
V1-C
S11
S1-MME
S1-U
V1-C
F1-U
F1-C
F1-U
F1-C
eNB-DU
eNB-CU
eNB-DU
eNB-CU
LTE RAN
Ng-eNB-DU
Ng-eNB-CU
Ng-eNB-DU
Ng-eNB-CU
E-UTRAN-NR
5G-SA Core
RU
RU
RU
RU
V1-C
Service based architecture interfaces
Control Plane
Control Plane + User Plane
UE reporting
User Plane
User Plane (Functional Split)
Control Plane (Functional Split)
UPF + PGW-U
SMF + PGW-C
NRF
BSF
SEPP
PCF + PCRF
UDM + HSS
NWDAF
UDR
MME
DN
AMF
AMF
N3IWF
MEC
MEC
AF
UDSFAUSF
NSSF
5G-EIR
CHF
NEF
SGW
eNodeB
eNodeB
gNodeB
Untrusted non
3GPP access
gNodeB
SMSF
MEUSIM
UE
MEUSIM
UE
N15
N18
N8N25/N36
N21
N35
N20
N17
N23
N12
N34
N29
N33
N22
N31
N40
S5-U
N3
N2
N1
NWu
Xn-U
X2-U
Uu
Uu
N1
N1
N1
N6
N2
S5-C
S6a
N32
N27
N27N9
N7 N13
N11
N24
N37N30
N16
N4
N10
N28
N3
N5
V1-U
V1-U
Y2
Y1
N14
NWu
eCPRI/CPRI
eCPRI/CPRI
eCPRI/CPRI
eCPRI/CPRI
N26
X2
Xn-C
X2-C
V1-C
S11
S1-MME
S1-U
V1-C
F1-U
F1-C
F1-U
F1-C
eNB-DU
eNB-CU
eNB-DU
eNB-CU
LTE RAN
Ng-eNB-DU
Ng-eNB-CU
Ng-eNB-DU
Ng-eNB-CU
E-UTRAN-NR
RU
RU
RU
RU
5G-SA Core
5G NSA model*E-UTRAN NR Dual Connectivity (EN-DC)
5G SA model*E-UTRAN NR Dual Connectivity (EN-DC)
5G SA model*Service-Based Architecture
Control plane protocol stacks between the 5G-AN and the 5G Core: N2
Control plane protocol stacks between the UE and the 5GC
User plane and control plane protocol stacks between the UE and the 5GC
5G system service-based architecture (Non-roaming reference architecture)
Fronthaul functional split
RU DU CU
BBURRH
eCPRI
CPRI
Ethernet802.1CM
RF - L1 low L1 high - L2 low L2 high - L3 BBU functionlayers
RF Digital RF L1 - L2 - L3
5G
Radio
5G-NR
LTE/C-RAN
eNB/gNB functional split
PDCPRLCMACPHY
PDCPRLCMACPHY
PDCPRLCMAC
PDCPRLCMAC
PDCP
RLCMACPHYRF
MACPHYRF
PHYRF
PHYRFRF
High
Low
High
Low
BBU
RRH
Packet dataconvergenceprotocol
Radio link control
Media access control
Physical layer
Radio frequency
1 2 3
1 CPRI
2 New split option 7 (eCPRI)
3 New split option 2
(R)AN (radio) access network5G-AN 5G access network5G-BRG 5G broadband residential gateway5GC 5G core network5G-CRG 5G cable residential gateway5G-EIR 5G equipment identity register5G-GUTI 5G globally unique temporary identifier5GLAN 5G local area network5G-RG 5G residential gateway5GS 5G system5G-S-TMSI 5G S-temporary mobile subscription identifier5QI 5G QoS identifierAAA Authentication authorization & accountingAF Application functionAMF Access and mobility management functionAS Application serverAS Access stratumATSSS Access traffic steering, switching, splittingATSSS-LL ATSSS-low layer AUC Authentication centerAUSF Authentication server functionBBERF Bearer binding and event reporting function
BGCF Breakout gateway control functionBSC Base station controllerBSF Binding support functionBSS Base station subsystemBTS Base transceiver stationCAG Closed access groupCAPIF Common API framework for 3GPP northbound
APIsCBCF Cell broadcast center functionCCS Convergent charging system functionCDF Charging data function CGF Charging gateway functionCHF Charging functionCIOT Cellular internet of thingsCP Control planeCSCF Call service control functionCSCF-I Call session control function-interrogatingCSCF-P Call session control function-proxy CSCF-S Call session control function-servingCS-MGW Circuit switch media gatewayCU Control unitDL DownlinkDN Data networkDNAI DN access identifier
DNN Data network nameDRX Discontinuous receptionDU Distributed uniteAN Evolved access networkEATF Emergency access transfer functionEBI EPS bearer identityE-CSCF Emergency call session control functionEIR Equipment identity registereNB Evolved NodeB eNodeB Evolved NodeBePCF Evolved policy control functionePDG Evolved packet data gatewayEPS Evolved packet systemFAR Forwarding action ruleFN-BRG Fixed network broadband RGFN-CRG Fixed network cable RGFN-RG Fixed network RGFQDN Fully qualified domain nameGFBR Guaranteed flow bit rateGGSN Gateway GPRS support nodeGMLC Gateway mobile location centerGMSC Gateway mobile switching centerGMSC-S Gateway mobile switch center servergNB Next generation NodeB
GPSI Generic public subscription identifierGUAMI Globally unique AMF identifierHLR Home location registerHR Home routed (roaming)HSGW HRPD serving gatewayHSS Home subscriber serverIBCF Interconnection border control functionIMS IP multimedia subsystemIMS-AGW IP multimedia subsystem access gatewayIMS-MGW IP multimedia subsystem media gatewayIN Intelligent networkI-NEF Intermediate network exposure functionIP-SM-GW IP short-messaging gatewayISDN Integrated services digital networkI-SMF Intermediate SMFLADN Local area data networkLBO Local breakout (roaming)LCS Client location services clientLMF Location management functionLRF Location retrieval functionMCX Mission critical serviceMDBV Maximum data burst volumeME Mobile equipmentMEC Multi-access edge computing
MFBR Maximum flow bit rateMGCF Media gateway control functionMGW Media gatewayMICO Mobile initiated connection onlyMME Mobility management entityMPS Multimedia priority serviceMPTCP Multipath TCP protocolMRB Media resource brokerMRFC Multimedia resource function controllerMRFP Multimedia resource function processorMS Mobile stationMSC-S Mobile switch center serverMTC Machine type communicationMTC-IWF Interworking functionN3IWF Non-3GPP interworking function NAI Network access identifierNB NodeB UMTSNEF Network exposure functionNF Network functionNGAP Next generation application protocolNg-eNB Next generation evolved NodeBNg-eNB-CU Next generation evolved NodeB control unitNg-eNB-DU Next generation evolved NodeB distributed unitNID Network identifier
Non-3GPP Networks not defined by 3GPP i.e. a Wi-Fi, Network and DSL networkNPN Non-public networkNR New radioNRF Network repository functionNSI ID Network slice instance identifierNSS Network switching subsystemNSSAI Network slice selection assistance informationNSSF Network slice selection functionNSSP Network slice selection policyNWDAF Network data analytics functionOCS Online charging systemOFCS Offline charging systemOSS Operations support systemOSS-RC Operations support system RCPCC Policy and charging controlPCEF Policy and charging enforcement functionPCF Policy control functionPCRF Policy charging and rules function PCU Packet control unitPDN GW Public data network gatewayPDR Packet detection rulePDSN Packet data serving nodePDU Protocol data unit
PEI Permanent equipment identifierPER Packet error ratePFD Packet flow descriptionPFDF Packet flow description functionPGW-C Packet gateway control planePGW-U Packet gateway user planePLMN Public land mobile networkPPD Paging policy differentiationPPF Paging proceed flagPPI Paging policy indicatorPSA PDU session anchorPSTN Public switched telephone networkQFI QoS flow identifierQoE Quality of experienceRAN Radio access networkRCAF RAN congestion awareness functionRG Residential gatewayRIT Radio interface technologyRNC Radio network controllerRNS Radio network subsystemRQA Reflective QoS attributeRQI Reflective QoS indicationRSN Redundancy sequence numberRU Radio unit
SA NR Standalone new radioSAE System architecture evolution SBA Service-based architectureSBI Service-based interfaceSCEF Service capability exposure functionSCP Service control pointSCP Service communication proxySCS Subcarrier spacingSD Slice differentiatorSEAF Security anchor functionalitySEPP Security edge protection proxySGSN Serving GPRS support nodeSGW Signaling gatewayS-GW Serving gatewaySIM Subscriber identification moduleSLF Subscription locator function SME Short message entitySMF Session management functionSMSF Short message service functionSMS-GMSC SMS gateway mobile services switching centerSMS-IWMSC SMS interworking mobile services switching
centerSN Sequence numberSNPN Stand-alone non-public network
S-NSSAI Single network slice selection assistance information
SPR Subscription profile repositorySSC Session and service continuitySSCMSP Session and service continuity mode selection policySST Slice/service typeSUCI Subscription concealed identifierSUPI Subscription permanent identifierTDF Traffic detection functionTNAN Trusted non-3GPP access networkTNAP Trusted non-3GPP access pointTNGF Trusted non-3GPP gateway functionTNL Transport network layerTNLA Transport network layer associationTrGW Transition gatewayTSC Time sensitive communicationTSN Time sensitive networkingTSP Traffic steering policyTSSF Traffic steering support functionTTG Tunnel termination gatewayUDM Unified data managementUDR Unified data repositoryUDSF Unstructured data storage functionUE Use equipment
UL UplinkUL CL Uplink classifierUPF User plane functionURLLC Ultra-reliable low latency communicationURRP-AMF UE reachability request parameter for AMFURSP UE route selection policyUSIM UMTS subscriber identification moduleVID VLAN identifierVLAN Virtual local area networkVLR Visitor location registervPCRF Virtual policy charging and rules function W-5GAN Wireline 5G access networkW-5GBAN Wireline BBF access networkW-5GCAN Wireline 5G cable access networkWAG WiFi access gatewayW-AGF Wireline access gateway functionWLAN-AP (trusted) WLAN access point trustedWLAN-AP (untrusted) WLAN access point
CDMA Code division multiple accessCore CS Core circuit switchCore PS Core packet switch
eHRPD Evolved high-rate packet dataGPRS General packet radio serviceGSM Global system for mobileUMTS Universal mobile telecommunications systemLTE Long-term evolutionEPC Evolved packet coreIMS IP multimedia subsystem5G-NR Fifth generation new radio5G-SA 5G standalone5G-NSA 5G non-standaloneWCDMA Wide code division multiple accessWLAN Wireless local area networkM2M Machine to machineMIOT Mobile internet of thingsNB-IoT Narrowband IoT
AAL2/AAL5 ATM adaptation layer type 2/type 5ALCAP Access link control application protocolAMR Adaptive multirateATM Asynchronous transfer modeBICC Bearer independent carrier controlBMC Broadcast multicast control
BSSAP Base station subsystem application partBSSGP Base station system GPRS protocolBTSM Base transceiver station managementCAMEL Customized application for mobile network
enhanced logicCAP CAMEL application partCC Call controlCODEC Coder-decoderCPCHFP Common packet channel framing protocol DCHFP Dedicated channel framing protocolDIAMETER Authentication, authorization and accounting
protocolDSCHFP Downlink shared channel framing protocolEDCHFP Enhanced dedicated channel framing protocolFACHFP Forward access channel framing protocolGMM GPRS mobility managementGTP GPRS tunneling protocolGTP-C GPRS tunneling protocol control planeGTP-U GPRS tunneling protocol user planeHS-DSCHFP High-speed downlink shared channel framing
protocolINAP Intelligent network application partIP Internet protocolISUP ISDN user part
L2RCOP Layer 2 relay character oriented protocolLAPD Link access procedure, D channelLLC Logical link controlM2UA/M3UA MTP2 user adaptation/MTP3 user adaptationMAC Media access controlMAP Mobile application partMEGACO Media gateway control protocolMM Mobility managementMTP Message transfer partMTP1/2/3 Message transfer part level 1/2/3NBAP NodeB application partNNI Network node interfaceNS Network servicePCHFP Paging channel framing protocolPDCP Packet data convergence protocolPMIP Proxy mobile internet protocolRACHFP Random access channel framing protocolRANAP Radio access network application partRLC Radio link controlRLP Radio linked protocolRNSAP Radio network subsystem application partRR Radio resourceRRC Radio resource control
Mobile technologiesProtocol
A Reference point between MSC and BSCAbis Reference point between BTS and BSC in GSM, RIT &
BSC in CDMAA3 Interface between BSC & BSCA7 Interface between BSC & BSCA8 Interface between BSC & HSGWA9 Interface between BSC & HSGWA10 Interface between MSC/VLR & HSGWA11 Interface between MSC/VLR & HSGWB Reference point between MSC and VLRCAP Interface between CS-MGW & IDSN/PSTNCIOT-Um CIOT radio interface between the mobile and the radio
access network - GSMCIOT-Uu CIOT radio interface between the mobile and the radio
access network - UMTS & LTECPRI Interface between baseband & radioCr Interface between MRFC & ASCx Interface between I/S-CSCF & HSSD Reference point between VLR and HLRDh Interface between AS & SLFDx Interface between I-CSCF & SLFE Reference point between MSCs or TSCseCPRI Interface between baseband & radio
F Reference point between MSC and EIRG Reference point between VLRsGa Interface between MTG-IWF & CDF/CGFGc Interface between HLR & GGSNGd Interface between SMS-GMSC/SMS-IWMSC & SGSNGe The Ge is an interface between the gprsSSF entity
in SGSN and the gsmSCF entity in SCP. It is used to handle CAMEL dialogues using the CAP protocol (supported by Wireshark).
Gf Interface between EIR & SGSNGi Reference point between GGSN and external packet
data network such as the internetGm Interface between UE & P-CSCFGn Carries signaling and data traffic between GSNs using
GTP protocolGp Carries signaling and GTP traffic between GSNs in
different PLMNsGr Interface between SGSN and HLRGs An interface between SGSN and MSC/VLR for PS/
CS interoperability. Using the Gs interface for BSSAP+ procedures to perform combined GPRS/IMSI attaches, combined location updates and page the subscriber using PS facilities.
Gw Interface between PFDF & PCEFGwN Interface between PFDF & TDF
Gx It provides transfer of (QoS) policy and charging rules from PCRF to policy and charging enforcement function (PCEF) in the PDN GW.
Gxa Interface between PCRF & WAGGxc Interface between PCRF & BBERFGxx Interface between PCRF & BBERFGy Interface between PCEF/GGSN & OCSGyn Interface between OCS & TDFGz Interface between OFCS & GGSNGzn Interface between OFCS & TDFH Reference point between HLR and AuCI4 Interface between E-CSCF & EATFIci Interface between IBCF & internetINAP Intelligent network application protocolIq Interface between IMS-ALG & IMS AGWIS41 Interface between HLR & HSGWISC Interface between S-CSCF & ASISUP Interface between CS-MGW & IDSN/PSTNIub Interface between an RNC and a Node BIuCS Reference point between the circuit switched core
network (via MGw) and the IMTS radio networkIuPS Interface between the UTRAN (RNC) and the packet
switched core network (SGSN) Iur Interface between the two RNCs (used for switching calls
that had been handed over from one RNC to the other)
Ix Interface between IBCF & TrGWIzi Interface between TrGW & TrGW belonging to a
different IM CN subsystem networkLe Interface between LRF & LCS clientMa Interface between I-CSCF & ASMAP Interface between CS-MGW & IDSN/PSTNMb MGW & MRFPMc Reference point between MSCs or TSCs and its
controlled MGwsMg Interface between MGCF & I,S-CSCFMi Interface between CSCF & BGCFMj Interface between BGCF & MGCFMk Interface between BGCF/IMS ALG & BGCFMm Interface between CSCF & IBCFMn Interface between MCGF & IMS MGWMp Interface between MRFC & MRFPMr Interface between CSCF & MRFC, AS & MRFCMw Interface between CSCF & CSCFMx Interface between CSCF/BGCF & IBCFN1 Interface between UE & AMF, N3IWF & untrusted non-
3GPP accessN2 Reference point between the (R)AN and the AMFN3 Reference point between the (R)AN and the UPFN4 Reference point between the SMF and the UPFN5 Reference point between the PCF and an AF
N5g-eir Service-based interface exhibited by 5G-EIRN6 Reference point between the UPF and a data networkN7 Reference point between the SMF and the PCFN8 Reference point between the UDM and the AMFN9 Reference point between two UPFsN10 Reference point between the UDM and the SMFN11 Reference point between the AMF and the SMFN12 Reference point between the AMF and the AUSFN13 Reference point between the UDM and authentication
server function the AUSFN14 Reference point between two AMFsN15 Reference point between the PCF and the AMF in non-
roaming scenario, PCF in the visited network and AMF in roaming scenario
N16 Reference point between two SMFs (in roaming scenario between the SMF in the visited network and the SMF in the home network)
N16a Reference point between SMF and I-SMFN17 Reference point between AMF and 5G-EIRN18 Reference point between any NF and UDSFN19 Reference point between two PSA UPFs for 5G
LAN-type serviceN20 Reference point between SMSF and AMFN21 Reference point between SMSF and UDMN22 Reference point between AMF and NSSF
N23 Reference point between PCF and NWDAFN24 Reference point between the PCF in the visited
network and the PCF in the home networkN25 Reference point between UDR and PCFN26 Inter-CN interface between the MME and 5GS AMF for
interworking between EPC and the NG coreN27 Reference point between the NRF in the visited
network and the NRF in the home networkN28 Reference point between PCF and CHFN29 Reference point between NEF and SMFN29i Reference point between I-NEF and SMF in the VPLMNN30 Reference point between NEF and PCFN31 Reference point between the NSSF in the visited
network and the NSSF in the home networkN32 Reference point between the SEPP in the visited
network and the SEPP in the home networkN33 Reference point between NEF and AFN34 Reference point between NSSF and NWDAFN35 Reference point between UDM and UDRN36 Reference point between PCF and UDRN37 Reference point between NEF and UDRN38 Reference point between I-SMFsN40 Reference point between SMF and the CHFN50 Reference point between AMF and CBCFN51 Reference point between AMF and NEF
N51i Reference point between AMF and I-NEFN52 Reference point between NEF and UDMN53 Reference point between NEF and I-NEFN55 Reference point between UCMF and AMFN56 Reference point between UCMF and NEFN57 Reference point between UCMF and AFN58 Reference point between AF and NEFNaf Service-based interface exhibited by AFNamf Service-based interface exhibited by AMFNausf Service-based interface exhibited by AUSFNb Reference point between two media gatewaysNc Reference point between MSCs or TSCsNchf Service-based interface exhibited by CHFNnef Service-based interface exhibited by NEFNnrf Service-based interface exhibited by NRFNnssf Service-based interface exhibited by NSSFNnwdaf Service-based interface exhibited by NWDAFNp Interface between RCAF & PCRFNpcf Service-based interface exhibited by PCFNsmf Service-based interface exhibited by SMFNt Interface between PCRF & SCEFNu Interface between PFDF & SCEFNudm Service-based interface exhibited by UDMNudr Service-based interface exhibited by UDRNudsf Service-based interface exhibited by UDSF
Nwu Interface between N3IWF & untrusted non-3GPP access
Rc Interface between AS & MRBRf Interface between CSCF & OFCSRo Interface among AS, MRFC, S-CSCFRx The Rx reference point resides between the AF and the
PCRFS1-C Between eNB and MME/S-GW control planeS1-MME Reference point for the control plane protocol between
E-UTRAN and MMES1-U Between eNB and MME/S-GW user plane, reference
point between E-UTRAN and the serving GW for the per bearer user plane tunneling and inter-eNodeB path switching during handover. S1-U does not apply to control plane CIoT EPS optimization.
S2a Interface between PDN GW & SGWS2b Interface between PDN GW & ePDGS3 Enables user and bearer information exchange for inter-
3GPP access network mobility in idle and/or active state. This reference point can be used intra-PLMN or inter-PLMN (e.g., in the case of inter-PLMN HO).
S4 It provides related control and mobility support between GPRS core and the 3GPP anchor function of the serving GW. In addition, if direct tunnel is not established, it provides user plane tunneling.
S5 It provides user plane tunneling and tunnel management between the serving GW and PDN GW. It is used for serving GW relocation due to UE mobility and if the serving GW needs to connect to a non-collocated PDN GW for the required PDN connectivity.
S5-C It provides user plane tunneling and tunnel management between serving GW and PDN GW (control plane). It is used for serving GW relocation due to UE mobility and if the serving GW needs to connect to a non-collocated PDN GW for the required PDN connectivity.
S5-U It provides user plane tunneling and tunnel management between the serving GW and PDN GW (user plane). It is used for serving GW relocation due to UE mobility and if the serving GW needs to connect to a non-collocated PDN GW for the required PDN connectivity.
S6a It enables transfer of subscription and authentication data for authenticating/authorizing user access to the evolved system (AAA interface) between MME and HSS.
S6b Interface between AAA server/proxy & PDN GWS6m Interface between MTG-IWF & HSSS6n Interface between MTC & HSSS6t Interface between HSS & SCEF
S8 Inter-PLMN reference point providing user and control plane between the serving GW in the VPLMN and the PDN GW in the HPLMN. S8 is the inter-PLMN variant of S5.
S9 Interface between PCRF in the HPLMN (H-PCRF) & PCRF in the VPLMN (V- PCRF). It provides transfer of (QoS) policy and charging control information between the home PCRF and the visited PCRF in order to support local breakout function.
S10 Reference point between MMEs for MME relocation and MME-to-MME information transfer. This reference point can be used intra-PLMN or inter-PLMN (e.g., in the case of inter-PLMN HO).
S11 Reference point providing control plane between MME and serving GW. In addition, in order to support control plane CIoT EPS optimization, the S11-U reference point provides user plane between MME and serving GW.
S12 Reference point between UTRAN and serving GW for user plane tunneling when direct tunnel is established. It is based on the Iu-u/Gn-u reference point using the GTP-U protocol as defined between SGSN and UTRAN or respectively between SGSN and GGSN. Usage of S12 is an operator configuration option.
S13 Enables UE identity check procedure between MME and EIR.
S14 Interface between Ue & WLAN AP (trusted)S16 Interface between two SGSNsS101 Interface between PCF & MMES102 Interface between MSC/VLR & MMES103 Interface between HSGW & S-GWSBc Reference point between CBC and MME for warning
message delivery and control functions.Sd Interface between PCRF & TDFSGd Interface between SMS-GMSC/SMS-IWMSC & MMESgi It is the reference point between the PDN GW and the
packet data network. The packet data network may be an operator external public or private packet data network or an intra-operator packet data network, e.g., for provision of IMS services. This reference point corresponds to Gi for 3GPP accesses.
SGs The SGs interface is an optional interface between a 2G (GERAN)/3G (UTRAN) MSC and an LTE/EPC MME.
Sh Interface between AS (SIP AS or OSA CSCF) & HSSSIP Interface between CS-MGW & IDSN/PSTNSp Interface between PCRF & SPRSt Interface between TSSF & PCRFSta Interface between HSS/AAA & WAGSV Interface between the mobility management entity
(MME) or serving GPRS support node (SGSN) and 3GPP MSC server enhanced for SRVCC
SWm Interface between ePDG & AAASwn Interface between untrusted non-IP access & ePDGSwu Interface between Ue & WLAN AP (untrusted)SWx Interface between HSS & AAASy Interface between PCRF & OCST4 Interface between SMS-GMSC/SMS-IWMSC & MTG-
IWFT6a Interface between the MME and the SCEFT6b Interface between the SGSN and the SCEFT8 Reference point for northbound application
programming interfaces (APIs), SCS & SCEFTsms Interface between SMS-GMSC/SMS-IWMSC & SMETsp Interface between MTC-IWF & SCSUm Reference point between MS and BTSut Interface between UE & ASUu Radio resource control (RRC)V1-C Between eNB-DU and eNB-CU control planeV1-U Between eNB-DU and eNB-CU user planeX2 Interface between eNodeB & eNodeBXn-C Interface between Ng-eNB-CU & eNB-CUXn-U Interface between Ng-eNB-CU & eNB-CUY1 Interface between UE & untrusted non-3GPP accessY2 Interface between N3IWF & untrusted non-3GPP
access
Interfaces
Network elements
*NON-ROAMING ARCHITECTURE FOR INTERWORKING
User plane protocol stacks
SDAPSDAP
UE ng-eNB
NR PDCPNR PDCP
RLCRLC
MACMAC
PHYPHY
User plane protocol stack
Application
PDU Layer PDU Layer
5G-ANprotocol
layers
5G-ANprotocol
layers
Relay
UE 5G-AN UPF UPF
UDP/IP
L1
L2
GTP-U
UDP/IP
L1
L2
GTP-U
UDP/IP
L1
L2
GTP-U
UDP/IP
L1
L2
GTP-U
(PDU Session Anchor)
N3 N9 N6
Relay
User plane protocol stack for a PDU Session
User plane protocol stack
User plane
UE eNB
PDCPPDCP
RLCRLC
MACMAC
PHYPHY
User plane protocol stack
UE
Control plane
eNB MME
PHYPHY
MACMAC
RLCRLC
PDCPPDCP
RRCRRC
NASNAS
Control plane protocol stack
GTP-U
UDP
IP
L2
L1
HeNB S1-U S-GW
GTP-U
UDP
IP
L2
L1
Protocol stack for S1 user plane
User plane for S1-U interface for HeNB without HeNB GW
S1-AP
SCTP
IP
L2
Access Layer
HeNB S1-MME MME
S1-AP
SCTP
IP
L2
L1
Protocol stacks for S1 control plane
Control plane for S1-1: MME Interface for HeNB to MME without the HeNB GW
UE-AMF
NAS-MM
Relay
5G-ANUE AMFN2
SCTP
L2
L1
IP
NG-AP NG-AP
IP
L1
L2
SCTP
NAS-MM
5G-ANprotocol
layers
5G-ANprotocol
layers
Control plane between the UE and the AMF
UE-SMF
N11
Relay
5G-ANUE SMF
SCTP
L2
L1
IP
NG-AP
NAS-MM
NAS-SMNAS-SM
5G-ANprotocol
layers
5G-ANprotocol
layers
Relay
AMF N11N2
SCTP
L2
L1
IP
NG-AP
NAS-MM
N11
Control plane protocol stack between the UE and the SMF
NAS-MM
Lower layer
NAS-MM
NAS-MM
NAS-MM
SMS
SMS
LCSLCS
UEPolicyUE
Policy
Lower layer
UE AMF SMF SMSF
NLg/NgmlcN15/-Npcf
N20/-NsmsfN11/-Nsmf
PCF GMLC
NAS Transport
NAS transport for SM, SMS, UE Policy and LCS
AN
SCTP
L2
L1
IP
NG-AP
N2
AN-AMF
AMF
SCTP
L2
L1
IP
NG-AP
Control plane between the 5G-AN and the AMF
AN
SCTP
NG-AP
L2
L1
IP
AN-SMF
N2 SMinfromation
SMF
N2 SMinfromationRelay
AMF N11N2
SCTP
L2
L1
IP
NG-AP
N11
Control plane between the AN and the SMF
UE ng-eNB AMF
PHYPHY
MACMAC
RLCRLC
NR PDCPNR PDCP
RRCRRC
NASNAS
Control plane protocol stack
© 2020 EXFO Inc. All copyright and/or trademarks or service marks are the property of their respective owners. EXFO’s copyright and/or trademarks or service marks have been identified as such. However, the absence of such identification does not constitute a waiver of EXFO’s rights and does not affect the legal status of any intellectual property. Made in Canada 20/06 20190023 SAP1076065
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Toll-free (USA and Canada)1-800-663-3936
Reference poster
5G era network architecturebased on 3GPP release 15
GGSN
SGSN
SGSN
CORE PS
CIOT
PDN-GW/PCEF
SMS-GMSC/
SMS-IWMSC
PLMN
PLMN
MME
IP-SM-GW
SME
MTCAAA
CDF/CGF
MTG-IWF
SCEF
SCS
MME
ePDG
HSSAAA
S-GW
EPC
en-gNB
en-gNB
eUTRAN-NR
HLR
EIR
GMSC
SCP
ISDNPSTN
AUC
MSC-SVLR
MSC-SVLR
CS-MGW
CS-MGW
CS-MGW
CS CORE
PDSN
HSGW
HLR
GMSC
MSC/VLR
IS95 & eHRPDPSTN
IP/IMSPCF
TTG
WLAN AP
WLAN AP
Ue
WAG
WI-FI ACCESS TRUSTED
& NON TRUSTED NON 3GPP
OCS
OFCS
PFDF
SCEF
TDF
vPCRF
BBERF
SPR
RCAF
AF
TSSF
PCRF
POLICY & CHARGING CONTROL
BSC
PCU
BTS
BTS
MESIM
MEUSIM
MEUSIM
MEUSIM
MEUSIM
2G BSS
UE
UE
CIOT Device
UE
MS
GSM/GPRS
MGW
BGCF
TrGW
IBCF
EATF
E-CSCF
IMSMGWLRF
LCSClient
MGCF
IMS-AGW
SLF
AS
MRFP
MRB
CSCFP-I-S
Internet
IMS
MRFC
RNC
RNC
BSC
BSC
BTS
BTS
NB
NB
WCDMA - UTRAN
CDMA 2000 - RNS
E
GfGc
C/D
G
S16
T6b
T6a
S6t
S6m
S6n
SWx
Ro
S9
Gxx
Sp
Np
Rx
St
Gw
Rx
Sd
Nt
Mj
Izi
ISC/Ma
Ix
Mb
Cr
Mi
Dx
Cx
Mx
Gwn
SWm
SWa
S6b
Gxc
S101
IS41
A10/A11
E
IS41
S2a
S14
T8
Tsp SGd
Gxa, STa
C
Ge
PSTN
Nc
Gn
luPS
S4
X2-C
Xn-C
SWu
S12
SGi
Gi
S103
S1-U
S11
lub
Uu
Uu
Uu
Uu
Um
lub
Gp
ERo
ISC
Mn
Iq
Gi
S8
Mc
INAP/CAP
Gi/SGi
S5/S8
Rf/Ga
MAP/CAP/ISUP/SIP
Nb
Nb
Nc
SV/SGs
Gi/SGi
H
T4
S6a
Gz
Gy
Gx
Gx
Mg
Mw
RxRf
Mi
Izi
Ici Mm
Mx
MmMl
I4
Mb
Mp
Le
Dh
MrRc
Sh
Tsms Sy
Nu
S102
S2b
SWn
Gz
Gy
Gyn
Gxa
Gzn
STa
S2a
Gd
V1-U
eCPRI/CPRI
eCPRI/CPRI
D
Mc
F
Gs
S3
S10
Gr
S13
A
Abis
Abis
CIOT-Um
CIOT-Uu
CIOT-Uu
A
luCS
luCS
lur
Gb
Gp
X2
X2-U
Xn-U
Abis
A1
A8/A9
A10/A11
Abis
A3/A7
S1-U
S1-C
S1-U
S1-C
V1-C
UtMb
SGi
Gm
BBU
eNB-DU
eNB-CU
eUTRAN
LTE
5G-NR
eNodeB
eNodeB
RU
RU
2G
3G
4G
5G
Control Plane (Functional Split)
User Plane (Functional Split)
Control Plane
Control Plane + User Plane
UE reporting
User Plane
IP Applications
SNDCP
LLC
GMM SM TOM GSMSALCAP
RRC
MM CC GMM SM SMS GSMS SS
AMR PDCP BMCTAF
RNSAP ALCAPSTC
SSCF-UNI
SSCOP
AAL5
ATML1
L2
IP
SCTPM3UA MTP3b
SCCPRLP
RLCMAC
UDP
IP
L2ATM
AAL2
DCHFP RACHFP FACHFP PCHFP DSCHFP USCHFP CPCHFP HS-DSCHFP EDCHFPSTC
SSCF-UNISSCOP
AAL5
ATML1
L2
IP
SCTPNBAP
BSSGPNS
Frame Relay (L1 bis)UDP
IPL2
L1
MM CCBSSAPSCCP L2RCOP
MTP-3 LRPMTP-2 V110 Speech
MTP-1
L1
M3UASCTP
IPL2
SMS SS
GSMAbis A
IP ApplicationsTCP UDP
IPSSSMS
RRLLC
RLC / MACPCU
SMSCBBTSM
LAPD
IP ApplicationsTCP
IPGTP-UUDP
IP
S1APSCTP
L2L1
UDPIP Applications
TCPIP
GTP-UUDP
IP
X2APSCTP
L2L1
TCP
IP
IP ApplicationsUDP
L2L1
TCPIP
UDP
L2L1
UDP
IP ApplicationsTCP
MAP CAP
MAP CAP INAPBICC
SCCPTCAP
MTP3
MTP2L1
M3UASCTP
IP
ISUPMEGACO
MTP3b M3UA M3UA
ALCAPSTC
MTP3bSSCF-NNI
SSCOPAAL5
ATM
RLPTAF CODEC
Nb UP
AAL2
L1IP
UDPRTP
Nb UPRLPTAF CODEC
RTCP UDPIPL2L1
UDPIPL2L1
IP Applications IP Applications
GTP-U GTP-UUDP
IPL2L1
GTP-V2UDP
IPIP
GRE TUNNELLING
IP
IPL2L1
PMIPv6TCP SCTP
IPL2L1
DIAMETERSCTP
IPL2L1
DIAMETERGTP-C V2SCTPSCTPSSCF-NNISSCOP
IPAAL5ATM
L1
TCAPSCCP
MTP3bSSCF-NNI
SSCOP
M3UASCTP
IPAAL5ATM
L1
MTP-2IP
SCTPM3UAMTP-3IP
GTPUDP
IPL2L1
UDP
O&MO&M TRANSPORT
CCMMGSMSTOMSMGMM
SNDCP
CODECTRAU
L1
LTES1 X2
PS COREGi, SGi Gm Gn, Gp Gr
CS COREC, D, E, F, Gd, Ge, Gf, Gs, Nc Mc Nb
EPCS4, S5, S8 S12 S3, S10, S11
S16, SvS6b, Gx, Gy, Gz, Rx S2a S6a, S6d, S13
SCTPIPL2L1
SGsAP
SGs
UDPIPL2L1
S101-AP
S101
LayerDIAMETER
IP IPL2L1
L2L1
GRE TUNNELLING
S103
UDP TCP SCTP UDP
L2L1
IP
RTP RTCPUDP
L2L1
IP
MEGACOTCP SCTP
IPL2L1
A21
IPL2L1
UDPSIP / SDP
TCP SCTP
S102IMSCx, Dh, Dx, Rf, Ro, Rx, Sh Gm, ISC, Ma, Mg, Mj, Mi, Mr, Mr’, Mx Mb Mn, Mp
GPRSGb
UMTSIub Iur Iu-CS Iu-PS
RRC
MM CC GMM SM SMS GSMS SS
AMR PDCP BMCTAF MM CC SMS SS
RANAP ALCAPSTC TAF
RLPAMR
L1
L2AAL5
ATM
SSCOPSSCF-NNI
MTP3b
IP ApplicationsUDP TCP
IPIu UP
GTP-UUDP
IP
L2AAL5ATM
SCCPRANAPGMMSM GSMS
M3UASCTP
IP
Iu UPRTCPRTP
UDPIPL2
ATM
AAL2
SCCPM3UASCTP
IP
L2
L1ATM
AAL5
SSCOPSSCF-NNI
MTP3b
RLPRLCMAC
UDP
IP
L2ATM
AAL2
DCHFP RACHFP FACHFP PCHFP DSCHFP USCHFP CPCHFP HS-DSCHFP EDCHFP
RAN
INTE
RFA
CES
CO
RE
INTE
RFA
CES
RAN
INTE
RFA
CES
CO
RE
INTE
RFA
CES
Multi-technology network poster based on 3GPP release 15