3GPP Reference Points
A-interface
AAA-*
Abis
B-interface
Bx (Bcp / Bi / Bl / Bm / Bmb / Bmn / Bo / Bp / Bpr / Bs / Bsm / Bt / Bw / Bx)
C-interface
CAP
Cr
CSC‑*
Cx
D-interface
Dh
Dx
Dz
→ see it here
E-interface
E1
E-UTRAN Uu (LTE Uu)
F-interface
F1
G-interface
→ see it here
Ga
Gb
Gc
→ see it here
GC1
GCS AS
←→
UE Application
Gd
→ see it here
Gdd
Ge
→
Gf
→ see it here
→
→
Ghv
Gi
GGSN
←→
PDN
→ see it here
→
→
Gla
→ see it here
Glb
→ see it here
Glc
→ see it here
Gld
→ see it here
Gle
→ see it here
Glf
→ see it here
Glg
→ see it here
Glh
→ see it here
Gli
→ see it here
Glj
→ see it here
Glk
→ see it here
Gm
→ see it here
Gmb
Gmc
GGSN
←→
RNS
Gn
Gp
Gr
→ see it here
Gs
Gw
Gwn
Gx
Gxa
→ see it here
→
→
Gxb
ePDG
←→
PCRF/V-PCRF
→ see it here
→
→
Gxb*
ePDG
←→
PCRF/V-PCRF
Gxc
S-GW
←→
PCRF/V-PCRF
Gxx
Gy
→ see it here
Gya
Gyn
→ see it here
Gz
→ see it here
Gza
Gzn
→ see it here
H-interface
→ see it here
HTTP‑*
Hv
→ see it here
I-interface
I1
ICS UE
←→
SCC AS
→ see it here
I2
→ see it here
I3
MSC-S
←→
TAS
→ see it here
I4
→ see it here
I5
→ see it here
I6
→ see it here
Ici
→ see it here
Iq
ISC
→ see it here
Iub
IuBc
→ see it here
IuCS
→ see it here
Iuh
Iupc
RNC
←→
SAS
→ see it here
IuPS
Iur
Iur-g
BSS
←→
RNS
IWF-*
→ see it here
Ix
→ see it here
Izi
→ see it here
J-interface
→
K-interface
MSC
←→
SIWF Server
→
L-interface
→
La
→ see it here
Lb
→ see it here
Lc
→ see it here
Le
GMLC
←→
External LCS Client
→ see it here
Lg
→ see it here
Lgd
→ see it here
Lh
→ see it here
Lid
→ see it here
Lp
Lpp
→ see it here
Lr
Ls
LTE‑Uu
→ see it here
M1
→ see it here
M2
→ see it here
M3
→ see it here
Ma
→ see it here
Mb
IMS
←→
IPv6 networks
→ see it here
MB2
→ see it here
Mc
→ see it here
MCData‑*
→ see it here
MCPTT‑*
→ see it here
MCVideo‑*
→ see it here
MCX‑*
→ see it here
Mg
→ see it here
Mi
→ see it here
Mj
→ see it here
Mk
→ see it here
Ml
→ see it here
Mm
→ see it here
Mn
→ see it here
Mp
→ see it here
Mr
→ see it here
Mr'
→ see it here
Mx
→ see it here
Mw
→ see it here
Mz
→ see it here
N1
→ see it here
N2
(R)AN
←→
AMF
→ see it here
N3
(R)AN
←→
UPF
→ see it here
N4
→ see it here
N5
→ see it here
N6
UPF
←→
Data Network
→ see it here
N7
→ see it here
N8
→ see it here
N9
→ see it here
N10
→ see it here
N11
→ see it here
N12
→ see it here
N13
→ see it here
N14
→ see it here
N15
→ see it here
N16
→ see it here
N16a
→ see it here
N17
→ see it here
N18
→ see it here
N19
→ see it here
N20
→ see it here
N21
→ see it here
N22
→ see it here
N23
→ see it here
N24
→ see it here
N26
→ see it here
N27
→ see it here
N28
→ see it here
N29
→ see it here
N29i
→ see it here
N30
→ see it here
N31
→ see it here
N32
→ see it here
N33
→ see it here
N35
→ see it here
N36
→ see it here
N37
→ see it here
N50
→ see it here
N51i
→ see it here
N52
→ see it here
N55
→ see it here
N56
→ see it here
N57
→ see it here
N58
→ see it here
Nb
→ see it here
Nc
(G)MSC Server
←→
MSC Server
→ see it here
NG
→ see it here
NL1
NL2
NL3
NL5
NEF
←→
HGMLC
NL6
UDM
←→
HGMLC
NL7
Np
RCAF
←→
PCRF/V-PCRF
→ see it here
Nq
Nq'
Ns
Nt
→ see it here
Nu
→ see it here
Nwt
→ see it here
Nwu
→ see it here
PC1
ProSe AS
←→
ProSe Application in UE
→ see it here
PC2
ProSe AS
←→
ProSe Function
→ see it here
PC3
UE
←→
ProSe Function
→ see it here
PC4a
HSS
←→
ProSe Function
→ see it here
PC4b
SLP (OMA Secure User Plane Location Platform)
←→
ProSe Function
→ see it here
PC5
ProSe-enabled UE
←→
ProSe-enabled UE
→ see it here
PC6/PC7
HPLMN ProSe Function
←→
HPLMN/VPLMN ProSe Function
→ see it here
Pc
Presence Network Agent
←→
MSC Server/VLR
→ see it here
Pen
Presence Network Agent
←→
Presence Server
→ see it here
Pep
Presence User Agent
←→
Presentity Presence Proxy
→ see it here
Pet
Watcher Applications
←→
Presence List Server
→ see it here
Peu
Presence User Agent
←→
Presence Server
→ see it here
Pex
Presence External Agent
←→
Presence Server
→ see it here
Pg
Presence Network Agent
←→
SGSN
→ see it here
Ph
→ see it here
Pi
S-CSCF
←→
Presence Network Agent
→ see it here
Pk
Presence Network Agent
←→
GGSN
→ see it here
Pl
Presence Network Agent
←→
GMLC
→ see it here
Pp
Presence Network Agent
←→
PDG
→ see it here
Pr
Presence Network Agent
←→
3GPP AAA Server
→ see it here
Pw
Watcher Applications
←→
Presentity Presence Proxy
→ see it here
Pwp
Presentity Presence Proxy
←→
Presence Server
→ see it here
Px
Presentity Presence Proxy
←→
HSS
→ see it here
Rc (charging)
→ see it here
Rc (IMS)
→ see it here
Re
→ see it here
Rf
Rg
GUP Server
←→
Applications
→ see it here
Ro
→ see it here
Rp
GUP Server
←→
RAF
→ see it here
Rr
ABMF
←→
Recharging Server
→ see it here
Rx
→ see it here
REST‑Rx
S1-MME
→ see it here
S1-U
→ see it here
S2a
→ see it here
S2b
→ see it here
S2c
→ see it here
S3
→ see it here
S4
→ see it here
S5
→ see it here
S6a
→ see it here
S6b
→ see it here
S6c
S6d
→ see it here
S6m
→ see it here
S6n
→ see it here
S6t
→ see it here
S7a
→ see it here
S7d
→ see it here
S8
→ see it here
S9
→ see it here
S9a
BPCF
←→
PCRF/V-PCRF
→ see it here
S10
→ see it here
S11
→ see it here
S11-U
→ see it here
S12
→ see it here
S13
→ see it here
S13'
→ see it here
S14
→ see it here
S15
→ see it here
S16
→ see it here
S101
S102
3GPP2 1xCS IWS
←→
MME
S103
S121
SBc
Sd
→ see it here
SGd
SGi
PDN-GW
←→
PDN
→ see it here
SGi-mb
→ see it here
SGmb
→ see it here
SGs
Sh
Si
HSS
←→
CAMEL IM-SSF
SEAL‑*
SIP‑*
SLg
→ see it here
SLh
→ see it here
SLm
→ see it here
SLs
→ see it here
Sm
→ see it here
Sn
→ see it here
Sp
→ see it here
St
→ see it here
STa
→ see it here
Sv
→ see it here
SWa
SWd
SWm
SWn
→ see it here
SWu
→ see it here
SWx
Sxa
S-GW-C
←→
S-GW-U
→ see it here
Sxb
P-GW-C
←→
P-GW-U
→ see it here
Sxc
→ see it here
Sy
OCS
←→
PCRF / H-PCRF
→ see it here
T4
→ see it here
T6a
→ see it here
T6ai
→ see it here
T6b
→ see it here
T6bi
→ see it here
T7
→ see it here
T8
SCEF
←→
SCS-AS
→ see it here
T9a
→ see it here
T9b
→ see it here
Tsms
→ see it here
Tsp
→ see it here
Ta
→ see it here
Tn
→ see it here
Ua
→ see it here
Ub
→ see it here
Ud
→ see it here (PCRF acting as AFE)
Um
Up
Upa
→ see it here
Ut
→
Uu
→
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‑*
X2
→ see it here
xMB
Content Provider
←→
BM-SC
→ see it here
Xn
→ see it here
Xw
E-UTRAN
←→
WLAN
Y1
→ see it here
Y2
→ see it here
Y4
→ see it here
Y5
→ see it here
Yt
→ see it here
Yw
→ see it here
Za
→ see it here
Zb
→ see it here
Zh
→ see it here
Zh'
Zn
→ see it here
Zpn
→ see it here