The scope of this document is to specify the support of NBIFOM (Network based IP Flow Mobility) i.e. IP flow
mobility based on network mobility protocols. This feature supports PDN connections that are simultaneously
connected over 3GPP access (i.e. S5/S8 connection to a PDN GW) and a WLAN access (i.e. S2a or S2b connection to
the same PDN GW).
full Table of Contents for TS 23.161 Word version: 15.0.0