In non-roaming scenario, only SCEF will provide IRI-POI and CC-POI.
In roaming scenario, IWK-SCEF shall provide the IRI-POI and CC-POI functions for the visited network while SCEF in the home network provides IRI-POI and CC-POI.
LI for NIDD using SCEF or IWK-SCEF is described in clause 18.104.22.168
Packet header reporting and non-3GPP access are not applicable to NIDD.
In non-roaming scenario, the PGW provides an IRI-POI and a CC-POI. Although SGW provides an IRI POI and a CC-POI for IP and Ethernet-based PDN connections, PGW terminates the PtP SGI tunnel with the SCS/AS and has the same capabilities as SCEF for NIDD.
In roaming scenario, SGW in the visited network and PGW in the home network shall provide the IRI-POI and CC-POI functions as shown in Figure 6.3-2
which also concerns IRI-POI and CC-POI functions for IP and Ethernet-based PDN connections.
The LI architecture for NIDD using a PtP SGi tunnel is the same as presented in Figure 6.3-2
However, the user plane packets between UE and PGW flow through the MME and SGW as shown in Figure 7.10-2
and Figure 7.10-4
The same xIRIs as specified in clause 22.214.171.124
for PDN connections of IP or Ethernet type and the same xCC are also considered for PDN connections for NIDD using a PtP SGi tunnel, considering unstructured payload format.