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3GPP Reference Points

Under reconstruction...
  A     B     C     D     E     F     G     H     I     J     K     L     M     N     O     P     Q     R     S     T     U     V     W     X     Y     Z 
A
A-interface
BSS ↔ MSC
→  see it  here
→  TS 48.001  .002  .004  .006  .008
AAA-*
→  TS 23.280 (7.5.3)
Abis
BSC ↔ BTS
→  TS 48.051  .052  .054  .056  .058
Top
B
B-interface
MSC ↔ VLR
→  see it  here
→  TS 23.018 (8.1)
Bx (Bcp / Bi / Bl / Bm / Bmb / Bmn / Bo / Bp / Bpr / Bs / Bsm / Bt / Bw / Bx)
CGF/OCS ↔ BD
→  see it  here
→ 
Top
C
C-interface
MSC ↔ HLR
→  see it  here
→ 
CAP
CTF ↔ OCF
→  see it  here
→  TS 23.018 (8.2)
Cr
AS ↔ MRFC
→  see it  here
→  TS 29.228 (8.2)  (9.2)
CSC‑*
→  see it  here
→  TS 23.280 (7.5.2)
Cx
HSS ↔ S-CSCF/I-CSCF
→  see it  here
→  TS 29.228  .229 (6)
Top
D
D-interface
HLR ↔ VLR
→  see it  here
→ 
Dh
AS ↔ SLF
→  see it  here
→ 
Dx
S-CSCF/I-CSCF ↔ SLF
→  see it  here
→  TS 23.018 (8.3)
Dz
BSF ↔ SLF
→  see it  here
→ 
Top
E
E-interface
MSC ↔ MSC
→  see it  here
→ 
Top
F
F-interface
MSC ↔ EIR
→  see it  here
→  TS 23.018 (8.4)
Top
G
G-interface
VLR ↔ VLR
→  see it  here
Ga
CDF ↔ CGF
→  see it  here
→ 
Gb
SGSN ↔ BSS
→  see it  here
→ 
Gc
GGSN ↔ HLR
→  see it  here
→ 
GC1
GCS AS ↔ UE Application
→  see it  here
→ 
Gd
SGSN/IP-SM-GW ↔ SMS-GMSC/SMS-IWMSC
→ 
Gdd
SGSN ↔ SMS-GMSC/SMS-IWMSC
→  TS 29.338
Ge
gprsSSF ↔ gsmSCF
→ 
Gf
SGSN ↔ EIR
→  see it  here
→ 
Ghv
CSS ↔ SGSN
→  TS 23.060 (5.4.10)
→ 
Gi
GGSN ↔ PDN
→  see it  here
→ 
Gl[a-k]
about GLR
→  see it  here
Gm
UE ↔ P-CSCF
→  see it  here
Gmb
GGSN ↔ BM-SC
→  see it  here
→  TS 29.061 (17)
Gmc
GGSN ↔ RNS
Gn
SGSN ↔ GGSN/SGSN
→  see it  here
→  TS 29.060
Gp
SGSN ↔ GGSN
→  see it  here
→  TS 29.060
Gr
SGSN ↔ HLR
→  see it  here
Gs
MSC/VLR ↔ SGSN
→  see it  here
→  TS 29.016  .018
Gw
PCEF ↔ PFDF
→  see it  here
→  29.251 (4)
Gwn
TDF ↔ PFDF
→  see it  here
→  29.251 (5)
Gx
PCEF ↔ PCRF/H-PCRF/V-PCRF
→  see it  here
→  29.212 (4)
Gxa
Trusted non-3GPP IP Access ↔ PCRF/V-PCRF
→  see it  here
→ 
Gxb
ePDG ↔ PCRF/V-PCRF
→  see it  here
→ 
Gxb*
ePDG ↔ PCRF/V-PCRF
Gxc
S-GW ↔ PCRF/V-PCRF
Gxx
PCRF ↔ BBERF
→  see it  here
→  29.212 (4a)
Gy
OCS ↔ PCEF
→  see it  here
Gya
OCS ↔ Accounting Interworking function
Gyn
OCS ↔ TDF
→  see it  here
Gz
OFCS ↔ PCEF
→  see it  here
Gza
OFCS ↔ Accounting Interworking function
Gzn
OFCS ↔ TDF
→  see it  here
Top
H
H-interface
HLR ↔ AuC
→  see it  here
HTTP‑*
→  TS 23.280 (7.5.3)
Hv
CSS ↔ VLR
→  see it  here
Top
I
I-interface
MSC ↔ GCR
I1
ICS UE ↔ SCC AS
→  see it  here
I2
MSC-S ↔ CSCF
→  see it  here
I3
MSC-S ↔ TAS
→  see it  here
I4
E-CSCF ↔ EATF
→  see it  here
I5
I-CSCF ↔ EATF
→  see it  here
I6
MSC-S ↔ E-CSCF
→  see it  here
Ici
IBCF ↔ IBCF
→  see it  here
Iq
P-CSCF ↔ IMS-AGW
ISC
S-CSCF ↔ AS
→  see it  here
Iub
RNC ↔ NodeB
→  TS 25.43x
IuCS
MSC ↔ RNC/BSC
→  see it  here
Iuh
HNB ↔ HNB-GW
→  TS 25.467 (7)
Iupc
RNC ↔ SAS
→  see it  here
IuPS
SGSN ↔ RNC/BSC
→  TS 25.41x
Iur
RNC ↔ RNC
→  TS 25.42x
Iur-g
BSS ↔ RNS
→  TS 43.130
IWF-*
about MCS
→  see it  here
Ix
IBCF ↔ TrGW
→  see it  here
Izi
TrGW ↔ TrGW
→  see it  here
Top
J
J-interface
HLR ↔ gsmSCF
→ 
Top
K
K-interface
MSC ↔ SIWF Server
→ 
Top
L
L-interface
MSC ↔ gsmSCF
→ 
La
GMLC ↔ 3GPP AAA Server
→  see it  here
Lb
BSC ↔ SMLC
→  see it  here
Lc
GMLC ↔ gsmSCF
→  see it  here
Le
GMLC ↔ External LCS Client
→  see it  here
Lg
GMLC ↔ MSC/MSC-S/SGSN
→  see it  here
Lgd
GMLC ↔ SGSN
→  see it  here
Lh
GMLC ↔ HLR
→  see it  here
Lid
H-GMLC ↔ PMD
→  see it  here
Lp
SMLC ↔ SMLC
→  TS 49.031
Lpp
GMLC ↔ PPR
→  see it  here
Lr
GMLC ↔ GMLC
Ls
SMLC ↔ MSC-S
LTE‑Uu
UE ↔ E-UTRAN
→  see it  here
Top
M
M1
MBMS-GW ↔ E-UTRAN/UTRAN
→  see it  here
M2
MCE ↔ eNodeB
→  see it  here
M3
MME ↔ MCE
→  see it  here
Ma
I-CSCF ↔ AS
→  see it  here
Mb
IMS ↔ IPv6 networks
→  see it  here
MB2
GCS AS ↔ BM-SC
→  see it  here
Mc
(G)MSC Server ↔ CS-MGW
→  see it  here
MCData‑*
→  see it  here
MCPTT‑*
→  see it  here
MCVideo‑*
→  see it  here
MCX‑*
→  see it  here
Mg
MGCF ↔ I-CSCF/S-CSCF
→  see it  here
Mi
S-CSCF ↔ BGCF
→  see it  here
Mj
BGCF ↔ MGCF
→  see it  here
Mk
BGCF/IBCF ↔ BGCF
→  see it  here
Ml
E-CSCF ↔ LRF
→  see it  here
Mm
CSCF/IBCF ↔ Multimedia IP networks
→  see it  here
Mn
MGCF ↔ IMS-MGW
→  see it  here
Mp
MRFC ↔ MRFP
→  see it  here
Mr
S-CSCF ↔ MRFC
→  see it  here
Mr'
AS ↔ MRFC
→  see it  here
Mx
CSCF/BGCF ↔ IBCF
→  see it  here
Mw
CSCF ↔ CSCF
→  see it  here
Mz
BM-SC ↔ BM-SC
→  see it  here
Top
N
N1
UE ↔ AMF
→  see it  here
N2
(R)AN ↔ AMF
→  see it  here
N3
(R)AN ↔ UPF
→  see it  here
N4
SMF ↔ UPF
→  see it  here
N5
PCF ↔ AF
→  see it  here
N6
UPF ↔ Data Network
→  see it  here
N7
SMF ↔ PCF
→  see it  here
N8
UDM ↔ AMF
→  see it  here
N9
UPF ↔ UPF
→  see it  here
N10
UDM ↔ SMF
→  see it  here
N11
AMF ↔ SMF
→  see it  here
N12
AMF ↔ AUSF
→  see it  here
N13
UDM ↔ AUSF
→  see it  here
N14
AMF ↔ AMF
→  see it  here
N15
PCF ↔ AMF
→  see it  here
N16
SMF ↔ SMF
→  see it  here
N16a
I-SMF ↔ SMF
→  see it  here
N17
AMF ↔ 5G-EIR
→  see it  here
N18
NF ↔ UDSF
→  see it  here
N19
UPF ↔ UPF
→  see it  here
N20
AMF ↔ SMSF
→  see it  here
N21
SMSF ↔ UDM
→  see it  here
N22
AMF ↔ NSSF
→  see it  here
N23
NWDAF ↔ PCF
→  see it  here
N24
vPCF ↔ hPCF
→  see it  here
N26
MME ↔ AMF
→  see it  here
N27
NRF ↔ NRF
→  see it  here
N28
PCF ↔ OCS
→  see it  here
N29
SMF ↔ NEF
→  see it  here
N29i
SMF ↔ I-NEF
→  see it  here
N30
PCF ↔ NEF
→  see it  here
N31
V-NSSF ↔ H-NSSF
→  see it  here
N32
V-SEPP ↔ H-SEPP
→  see it  here
N33
NEF ↔ AF
→  see it  here
N35
UDR ↔ UDM
→  see it  here
N36
UDR ↔ PCF
→  see it  here
N37
UDR ↔ NEF
→  see it  here
N50
UDR ↔ NEF
→  see it  here
N51i
UDR ↔ NEF
→  see it  here
N52
UDM ↔ NEF
→  see it  here
N55
AMF ↔ UCMF
→  see it  here
N56
UCMF ↔ NEF
→  see it  here
N57
UCMF ↔ AF
→  see it  here
N58
NEF ↔ AF
→  see it  here
Nb
CS-MGW ↔ CS-MGW
→  see it  here
Nc
(G)MSC Server ↔ MSC Server
→  see it  here
NG
gNB/ng-eNB ↔ AMF/UPF
→  see it  here
Top
P
PC1
ProSe AS ↔ ProSe Application in UE
→  see it  here
PC2
ProSe AS ↔ ProSe Function
→  see it  here
PC3
UES ↔ ProSe Function
→  see it  here
Top
R
Rc (charging)
OCF ↔ ABMF
→  see it  here
Rc (IMS)
AS ↔ MRB
→  see it  here
Top
S
S1-MME
E-UTRAN ↔ MME
→  see it  here
S1-U
E-UTRAN ↔ S-GW
→  see it  here
Top
T
T4
MTC-IWF ↔ SMS-SC
→  see it  here
T6a
MME ↔ SCEF
→  see it  here
T6ai
MME ↔ IWK-SCEF
→  see it  here
T6b
SGSN ↔ SCEF
→  see it  here
T6bi
SGSN ↔ IWK-SCEF
→  see it  here
T7
SCEF ↔ IWK-SCEF
→  see it  here
T8
SCEF ↔ SCS-AS
→  see it  here
T9a
UCMF ↔ AS
→  see it  here
T9b
UCMF ↔ SCEF
→  see it  here
Tsms
SMS-SC/GMSC/IWMSC ↔ SME
→  see it  here
Tsp
MTC-IWF ↔ SCS
→  see it  here
Ta
TNAP ↔ TNGF
→  see it  here
Tn
TNGF ↔ TNGF
→  see it  here
Top
U
Ua
UE ↔ NAF
→  see it  here
Ub
UE ↔ BSF
→  see it  here
Ud
Application Front Ends ↔ UDR
→  see it  here
Um
MS ↔ BSS
→  TS 44.00x
Up
MS ↔ GANC
→  TS 43.318
Upa
UE ↔ NAF
→  see it  here
Ut
UE ↔ SIP AS
→ 
Uu
UE ↔ SIP AS
→ 
Top
V
V1
V2X Application in UE ↔ V2X AS
→  see it  here
V2
V2X AS ↔ V2X Control Function
→  see it  here
V3
UE ↔ V2X Control Function
→  see it  here
V4
V2X Control Function ↔ HSS
→  see it  here
V5
V2X Application in UE ↔ V2X Application in UE
→  see it  here
V6
V2X Control Function in HPLMN ↔ V2X Control Function in VPLMN
→  see it  here
VAL‑*
→  TS 23.434 (6)
Top
X
X2
eNB ↔ eNB
→  see it  here
xMB
Content Provider ↔ BM-SC
→  see it  here
Xn
gNB/ng-eNB ↔ gNB/ng-eNB
→  see it  here
Xw
E-UTRAN ↔ WLAN
→  TS 36.46x
Top
Y
Y1
UE ↔ Untrusted non-3GPP access
→  see it  here
Y2
Untrusted non-3GPP access ↔ N3IWF
→  see it  here
Y4
5G-RG ↔ W-AGF
→  see it  here
Y5
FN-RG ↔ W-AGF
→  see it  here
Yt
N5CW-UE ↔ TWAP
→  see it  here
Yw
TWAP ↔ TWIF
→  see it  here
Top
Z
Za
SEG ↔ SEG
→  see it  here
Zb
SEG/NE ↔ NE
→  see it  here
Zh
BSF ↔ HSS
→  see it  here
Zh'
BSF ↔ HLR
Zn
BSF ↔ NAF
→  see it  here
Zpn
BSF ↔ NAF
→  see it  here
Top