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Content for  TS 22.011  Word version:  19.2.0

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9  Control of traffic from UE-based applications toward associated server |R14|p. 27

9.1  Descriptionp. 27

This feature allows operators to control traffic from UEs to an application on a third-party server or the third-party server itself. When an application on a third-party server or the third-party server itself becomes congested or fails the traffic towards that server need to be controlled to avoid/mitigate potential issues caused by resulting unproductive use of 3GPP network resource. This will also make it possible to allow 3GPP network to help third party servers to handle overload and recover from failures (see TS 22.101).
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9.2  Requirementsp. 28

Under network control, the UE shall be able to control (i.e. block and/or prioritize) traffic from UEs to an application on a third-party server or the third-party server itself without affecting traffic to other applications on the third-party server or to other third-party servers.
For this purpose, the UE shall be able to identify the traffic towards the third-party server or the application on the third-party server.
When congestion or failure of the application on the third-party server or the third-party server abates, the control shall be applied in a phased manner to gradually restore traffic according to operator policy.
This feature and other forms of access control shall be able to be applied simultaneously.
In case of simultaneous application of ACDC and this feature, this feature shall take precedence over ACDC to control traffic from applications in the UE, only when such traffic is allowed by ACDC.
This feature shall be applicable both to new connections being set up and to existing connections from the UE towards an application on a third-party server or the third-party server.
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