S1-U
**S1-U**
What is S1-U?
S1-U refers to the user plane interface between the Serving Gateway (S-GW) and the eNodeB (evolved NodeB, or base station) in a 4G LTE (Long-Term Evolution) network architecture. It is the interface through which user data (e.g., web browsing, video streaming) is transmitted between the radio access network and the core network. The S1-U interface uses GTP-U (GPRS Tunneling Protocol - User Plane) for data transport, encapsulating user IP packets for reliable and efficient transmission.
Which job functions commonly mention S1-U?
Which organizations are mentioning S1-U?
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