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SOLUTIONs for TECHNOLOGY
3G-UMTS
4G-LTE
5G
CBRS
IMS
IOT
MCX
MOCN
Mobile Roaming
NG911
P25
REST
V2X
Wi-Fi
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SEPP
UE
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The S3 interface is is a 4G interface between the MME and SGSN.
In wireless applications, the S3 interface is a 4G interface between the MME and SGSN.
Overview
S3 interface is between the MME and SGSN. It uses GTP V2 over UDP transport protocol.
Network Diagram
Messages
Create Session Request/Response
Modify Session Request/Response
Delete Session Request/Response
Call Flows
Standards
3GPP TS 29.274
Related Products and Protocols
Products
Simulation Toolkits
Protocols
GPRS Tunneling Protocol (GTP)