Section: 4.11.2.4.2 Session Management
Content: 4.11.2.4.2.1 PDN Connection Request Same procedure as specified in clause 4.11.1.5.4.1 is used with the following clarification: Step 6. The relevant steps of the procedure as specified in the figure above are executed with the following modification: - Additional condition to trigger Notify Request to HSS in step 15 of Figure 5.10.2-1 in TS 23.401[ General Packet Radio Service (GPRS) enhancements for Evolved Universal Terrestrial Radio Access Network (E-UTRAN) access ]  [13] is that the network supports the procedures for 5GC interworking without N26 and that the UE is allowed to use 5GS in the subscription data. If the Request Type of the UE requested connectivity procedure indicates "Emergency", MME triggers Notify Request to HSS if the network supports the procedures for 5GC interworking without N26 and operator policy allows handover of emergency session to 5GS. For an unauthenticated or roaming UE, if the Request Type of the UE requested connectivity procedure indicates "Emergency", the MME shall not send any Notify Request to an HSS.