Content of PANI for MR-DC

An Operator is unsure of the correct content of the PANI header (namely access-type and access-class field) for a UE that is camping on secondary gNB cell under EN-DC. The PANI header is defined in RFC 7315 and extended by 3GPP TS 24.229 and is required (inter-alia) , to provide the the identity of the cell where an emergency call is established is made available to the emergency authorities. For EN-DC, the UE can be served by a E-UTRAN cell at the MN eNodeB or a NR-cell via the SN en-gNB.