Section: 5.4.5.3 Network-initiated NAS transport procedure 5.4.5.3.1 General
Content: The purpose of the network-initiated NAS transport procedure is to provide a transport of: a) a single 5GSM message; b) SMS; c) an LPP message; c1) an SLPP message; d) an SOR transparent container; e) a single uplink 5GSM message which was not forwarded due to routing failure; f) a single uplink 5GSM message which was not forwarded due to congestion control; g) a UE policy container; h) a single uplink 5GSM message which was not forwarded, because the PLMN's maximum number of PDU sessions has been reached; h1) a single uplink 5GSM message which was not forwarded, because the maximum number of PDU sessions with active user-plane resources has been reached; h2) a single uplink 5GSM message which was not forwarded, because of ongoing network slice-specific authentication and authorization procedure for the S-NSSAI that is requested; h3) a single uplink 5GSM message which was not forwarded, because the UE requested to establish an MA PDU session for LADN DNN; h4) a single uplink 5GSM message which was not forwarded, because the maximum number of UEs for a network slice has been reached; h5) a single uplink 5GSM message which was not forwarded because the UE is marked in the UE's 5GMM context that it is not allowed to request UAS services; h6) a single uplink 5GSM message was not forwarded, because the UE not supporting S-NSSAI location validity information requested forwarding of an 5GSM message with Request type IE is set to "initial request" when not in the NS-AoS of the related S-NSSAI; i) a single uplink 5GSM message which was not forwarded due to service area restrictions; i1) a single uplink 5GSM message which was not forwarded because the UE is registered to a PLMN via a satellite NG-RAN cell that is not allowed to operate at the present UE location; j) a UE parameters update transparent container; k) a location services message; l) a CIoT user data container; l1) a single uplink CIoT user data container or control plane user data which was not forwarded due to routing failure; l2) a single uplink CIoT user data container which was not forwarded due to congestion control; m) a service-level-AA container; m1) an event notification for upper layers; m2) a UPP-CMI container; m3) a single UPP-CMI container which was not forwarded due to user plane positioning not authorized; or n) multiple of the above types. from the AMF to the UE in a 5GMM message.