User's Manual

Ver.
CHAPTER 2. System Overview
2600-00FKQFGA2
1.0
2.4 Intersystem Interface
2.4.1 Interface Structure
The eNB provides the following interfaces for interworking between NEs.
Figure 3. Inter-System Interface Structure
 Interface between eNB and UE
The eNB, in compliance with the 3GPP LTE Uu air interface standard, transmits and
receives control signals and subscriber traffic to and from the UE.
 Interface between eNB and S-GW
The interface between S-GW and eNB is 3GPP LTE S1-U, and the physical access
method is GE/FE.
 Interface between eNB and MME
The interface between MME and eNB is 3GPP LTE S1-MME, and the physical access
method is GE/FE.
 Interface between eNB and neighbor eNB
The inter-eNB interface is 3GPP LTE X2-C/X2-U, and the physical access method is
GE/FE.
 Interface between eNB and LSM
The interface between the eNB and the LSM complies with the IETF SNMPv2c/
SNMPv3 standard, the FTP/SFTP standard, and the proprietary standard of Samsung;
the physical connection method is GE/FE.
SGSN
HSS
eNB
eNB
LSM
S-GW P-GW
PCRF
CDMA
1xRTT
CDMA
eHRPD
UE
UE
MME
Iu-PS S4
LTE-Uu S1-U S5 SGi
S10
SNMP/
FTP LTE-Uu
S3
S1-MME
S11
S6a
Gxc
Rx
Gx
Gb
X2
Operator’s
IP Service
EPC
S101
S103
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