Section: 4.12a.4.1 Service Request procedures via Trusted non-3GPP Access
Content: The Service Request procedure via trusted non-3GPP access shall be supported as specified in clause 4.12.4.1 for the untrusted non-3GPP access with the following modifications: - The untrusted non-3GPP access is substituted by a trusted non-3GPP access. - The N3IWF is substituted by the TNGF. - The user plane between the UE and TNGF is established with IKEv2 signalling, as specified in clause 4.12a.5 (i.e. by using an IKEv2 Create_Child_SA exchange). The IKEv2 Create Child SA Request shall include the Additional QoS Information to reserve non-3GPP specific QoS resources as defined in clause 4.12a.5.