6.5 Access and mobility related policy information
23.5033GPPPolicy and charging control framework for the 5G System (5GS)Release 18Stage 2TS
To enable the enforcement in the 5GC system of the access and mobility policy decisions made by the PCF for the control as described in clause 6.1.2.1, the 5GC system may provide the Access and mobility related policy information from the PCF to the AMF.
Table 6.5-1 lists the AMF access and mobility related policy information.
Table 6.5-1: Access and mobility related policy information
|
Information name |
Description |
Category |
PCF permitted to modify in a UE context in the AMF |
Scope |
|---|---|---|---|---|
|
Aggregated maximum bite rate |
This part defines the aggregated maximum bite rate |
|||
|
UE-AMBR |
This defines the UE-AMBR value that applies for a UE |
Conditional (NOTE 5) |
Yes |
UE context |
|
List of UE-Slice-MBR |
This defines the List of UE-Slice-MBR (UL/DL) that each applies to the network slice of the UE. |
Conditional (NOTE 8) |
Yes |
UE context |
|
Service Area Restrictions |
This part defines the service area restrictions |
|||
|
List of allowed TAIs. |
List of allowed TAIs (NOTE 3) (NOTE 4). |
Conditional (NOTE 1) |
Yes |
UE context |
|
List of non-allowed TAIs. |
List of non-allowed TAIs (NOTE 3). |
Conditional (NOTE 1) |
Yes |
UE context |
|
Maximum number of allowed TAIs |
The maximum number of allowed TAIs. (NOTE 4) |
Conditional (NOTE 1) |
Yes |
UE context |
|
RFSP Index |
This part defines the RFSP index related information |
|||
|
RFSP Index for Allowed NSSAI |
Defines the RFSP Index associated with Allowed NSSAI that applies for a UE |
Conditional (NOTE 2) |
Yes |
UE context |
|
RFSP Index for Target NSSAI |
Defines the RFSP Index associated with Target NSSAI that applies for a UE |
Conditional (NOTE 2) |
Yes |
UE context |
|
RFSP Index in Use Validity Time |
Defines the time by which the RFSP Index will be used in MME after 5GS to EPS mobility. |
Conditional (NOTE 2, NOTE 11) |
Yes |
UE context |
|
5G access stratum time distribution |
This part defines the 5G access stratum time distribution |
|||
|
5G access stratum time distribution indication |
Defines if 5G access stratum time distribution via Uu reference point is enabled or disabled |
Conditional (NOTE 9) |
Yes |
UE context |
|
Uu interface time synchronization error budget |
Indicates the Uu Time Synchronization error budget for 5G access stratum time distribution |
Conditional (NOTE 10) |
Yes |
UE context |
|
SMF selection management |
This part defines the SMF selection management instructions |
|||
|
DNN replacement of unsupported DNNs |
Defines if a UE requested unsupported DNN is requested for replacement by PCF |
Conditional (NOTE 6) |
Yes |
UE context |
|
List of S-NSSAIs |
Defines the list of S-NSSAIs containing DNN candidates for replacement by PCF |
Conditional (NOTE 6) (NOTE 7) |
Yes |
UE context |
|
Per S-NSSAI: List of DNNs |
Defines UE requested DNN candidates for replacement by PCF |
Conditional (NOTE 6) |
Yes |
UE context |
|
NOTE 1: If management of service area restrictions by PCF is enabled. NOTE 2: If management of RFSP index by PCF is enabled. NOTE 3: Either the list of allowed TAIs or the list of non-allowed TAIs are provided by the PCF. NOTE 4: Both the maximum number of allowed TAIs and the list of allowed TAIs may be sent by PCF. NOTE 5: If management of UE-AMBR by PCF is enabled. NOTE 6: If SMF selection management by PCF is enabled. NOTE 7: The List of S-NSSAIs contains S-NSSAIs, valid in the serving network, of the Allowed NSSAI. NOTE 8: If management of UE-Slice-MBR by PCF is enabled. NOTE 9: If management of 5G access stratum time distribution is enabled. NOTE 10: If 5G access stratum time distribution or (g)PTP time synchronization is enabled. NOTE 11: If required based on operator policy when the RFSP provided by the PCF indicates a change in priority from 5G access to E-UTRAN access. |
||||
The list of allowed TAIs indicates the TAIs where the UE is allowed to be registered, see clause 5.3.4 of TS 23.501 [2] for the description on how AMF uses this information.
The list of non-allowed TAIs indicates the TAIs where the UE is not allowed to be registered, see clause 5.3.4 of TS 23.501 [2] for the description on how AMF uses this information.
The Maximum number of allowed TAs indicates the maximum number of allowed Tracking Areas, the list of TAI is defined in the AMF and not explicitly provided by the PCF.
The RFSP Index for Allowed NSSAI and RFSP Index for Target NSSAI defines the RFSP Index for radio resource management functionality.
RFSP Index in Use Validity Time defines the time by which the RFSP Index in use will be used in MME after 5GS to EPS mobility as specified in clause 5.17.2.2 of TS 23.501 [2].
The UE-AMBR limits the aggregated bit rate across all Non-GBR QoS Flows of a UE in the serving network.
The list of UE-Slice-MBR defines the list of authorized UE-Slice-MBR allocated for a UE, how it is enforced is described in clause 5.7.1.10 of TS 23.501 [2].
The DNN replacement of unsupported DNNs indicates that the AMF shall contact the PCF for replacement of an unsupported DNN requested by the UE.
The List of S-NSSAIs defines the S-NSSAIs, valid in the serving network, of the Allowed NSSAI that contain DNN candidates for replacement by PCF.
The List of DNNs defines the DNN candidates for which the AMF shall contact the PCF for replacement if such a DNN is requested by a UE.
The 5G access stratum time distribution indicates the 5G access stratum time distribution parameters to be indicated to the NG-RAN via AMF.