Existing Bearers Are Rejected Call Flow

This section describes the Existing Bearers Are Rejected call flow.

Existing Bearers Are Rejected Call Flow
All Bearers Are Rejected Call Flow Description

Step

Description

1

The SMF sends a N7 Create request to the PCF.

2

The PCF responds to the SMF with a N7 Create Success response.

3

The AF sends an AAR-I (Audio and Video) message to the PCF.

4

The PCF performs the Rx Authorization CRD lookup.

5

The Rx Authorization CRD evaluates both, the audio and video bearers.

If successful authorization, PCF sends AAA (Success) Result-Code=DIAMETER_SUCCESS(2001) to AF.

6

The PCF sends N7 Notify (Audio and Video) message.

7

The SMF responds with N7-Notify-Resp (Success) to the PCF.

8

The SMF sends N7 Update (RAT-Type Change).

9

The PCF performs the Rx Authorization CRD lookup.

10

When PCF reevaluates the existing bearer and the Rx Authorization CRD detects a VIDEO bearer with the missing AVP, PCF rejects the bearer with Error-Message=Throttled.

The PCF sends N7-UPDATE (Success) Charging Rule Remove for VIDEO to the SMF.

11

The PCF sends RAR (VIDEO) Specific-Action=INDICATION_OF_FAILED_RESOURCES_ALLOCATION to the AF.

12

The AF responds with RAA (Success) to the PCF.