Limitations

The 4G to 5G Data Session Handover feature has the following limitations:

  • SMF supports N26 4G to 5G handoff with single UPF, which implies that UPF selection and UPF modification are not supported.

  • SMF does not support PCF trigger.

  • SMF does not support charging and PCF integration.

  • SMF does not support the roaming scenario.