Limitations
This feature has the following limitations in this release:
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No support for UE reachability notifications to NFs.
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No support for forbidden area and service area restrictions.
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No support when N26 consigns and hands over from 5G to 4G. In this scenario, the AMF only updates the mobility restriction IEs in MMContext toward the MME in Forward Relocation Request (for connected mode HO) or Context Response (for idle mode HO).
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No support when N26 consigns and hands over from 4G to 5G. In this scenario, the AMF only enforces the mobility restriction IEs received in MMContext from the MME in Forward Relocation Request (for connected mode HO) or Context Response (for idle mode HO).
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No support when N2 HO updates with any of the changes in AMF or inter-AMF UE Context Transfer. In this scenario, the AMF acts only as a target node. The AMF does not support and does not enforce the mobility restriction IEs received in ueContext from the source AMF.
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No support for index-based ADD operation in UDM data changes NotificationRequest for a new core or RAT restriction type.
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No support when the target AMF applies only for those applicable enforcement-based parameters on the restrictions. In this scenario, these parameters are based on the restrictions that are received from the UDM. They are only from the locally configured setup at the target AMF.