Tidle Timer Call Flow

This section describes the Tidle timer call flow.

Tidle timer call flow is a sample call flow. Tidle timer expiry can happen post various signalling procedures, not just registration procedure.

Tidle Timer Call Flow
Tidle Timer Call Flow Description

Step

Description

1

The UE sends the Registration Request to the AMF

2

The UE receives Registration Response from the AMF.

3

The UE sends the Registration Complete to the AMF.

When UE moves to CONNECTED state, the AMF starts the configured timer. The value ranges between 30 seconds to seven hours.

4

The AMF waits for the Tidle timer expiry.

5

The AMF sends the Context Release Command to the gNodeB.

6

The AMF sends the Context Update to the SMF.