Feature Description
The Wireless Priority Services (WPS) feature is supported on the SMF over 5GC. The SMF validates prioritization of WPS services for session creation or modification and various handover scenarios. The SMF also evaluates the WPS services for Paging-Policy Differentiation for Network Triggered Service Request procedures.
SMF also detects priority calls based on ARP through local configurations to classify sessions as WPS and allows users to use nonstandard QCIs in addition to ARP for WPS calls.
QoS properties corresponding to these nonstandard QCI values are configured locally on the gNB. SMF only supports values added on the SMF to map nonstandard QCI to DSCP values on the data path.
Important | With release 2021.02.0, SMF will not set an MP flag in the N4 message while deleting the dynamic rule if no other existing rules ARP isn’t matching wps-profile. |