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S1AP

S1AP

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**S1AP**

What is S1AP?

S1AP (S1 Application Protocol) is the signaling protocol used in the Evolved Packet System (EPS) for communication between the Evolved Node B (eNodeB), which is the base station in LTE, and the Mobility Management Entity (MME) in the core network. It handles various functions such as establishing and releasing radio bearers, handover procedures, and the transfer of NAS (Non-Access Stratum) signaling messages between the UE (User Equipment) and the MME. It's crucial for managing mobility and session continuity in LTE networks.

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