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UE

Note

UE acts as a terminal device, like a mobile phone or an IoT device.

Architecture Overview

free-ue

Basic Connections

Connections

There will be two connections from UE to gNB:

  • Control Plane: Used for signaling messages, authentication, and session management procedures.
  • Data Plane: Used for user data transmission through established PDU sessions.

Procedures

  1. UE Registration: Initial registration procedure to attach UE to the 5G network.
  2. PDU Session Establishment: Procedure to establish data sessions for user plane communication.

GTP-U

In free-ran-ue, UE will not engage in any GTP procedures. All GTP procedures are handled at the gNB.

For more detailed information about GTP-U implementation, please refer to: Userspace GTP-U