-
L
TE
三种漫游架构
TS23.401
4.2.2
HSS
Roaming
architecture
Gx
PDN
Gateway
PCRF
S6a
SGi
Rx
Operator’s IP
Services
(e.g. IMS, PSS
etc.)
HPLMN
UTRAN
VPLMN
SGSN
S8
GERAN
< br>S1
-
M
ME
< br>
S3
MME
S12
S4
UE
“
LTE
-
Uu
”
S10
E
-
U
TRAN
S11
Serving
Gateway
S
1
-
p>
U
Figure 4.2.2-1: Roaming architecture
for 3GPP accesses. Home routed traffic
NOTE 1:
Additional
interfaces/reference points for 2G/3G accesses are
documented in
TS 23.060 [7].
The figures 4.2.2-2 and 4.2.2-3
represent the Roaming with local breakout case
with Application
Function (AF) in the
Home Network and in the Visited Network
respectively. The concurrent use
of
AF's in the home network and AF's in the visited
network is not excluded.