Section: 5.28a.2 Transfer of TL-Container between SMF/CUC and AN-TL and CN-TL
Content: If NG-RAN and UPF support AN-TL and CN-TL, the SMF/CUC may use the TL-Container to send a: 1) get-request. 2) set-request: submits the following information elements to the AN-TL or CN-TL: - InterfaceConfiguration as described in Annex M, clause M.1 (one InterfaceConfiguration is associated with each QFI in the N3 tunnel) - Interface ID Group. - TN Stream Identification Information for DataFrameSpecification. - TN Stream Identification Information for mask-and-match. - Interval (only provided together with TimeAwareOffset). - MaxFrameSize (only provided together with TimeAwareOffset). The AN-TL or CN-TL may use the TL-Container to send a: 1) get-response: indicates the following elements of the Talker or Listener group from the AN-TL or CN-TL: - EndStationInterfaces: list of InterfaceIDs. - InterfaceCapabilities. - Buffer capability: maximum possible buffer duration for a packet of a stream with the maximum size of an Ethernet packet (1522 Bytes) that is supported by the AN-TL / CN-TL when acting as a Talker. 2) set-response: reports the processing results for the corresponding set-request to the SMF/CUC. Details on the TL-Container information are provided in Table M.2-1 of clause M.2. The SMF/CUC may request the NG-RAN/UPF to report AN-TL or CN-TL information by including a TL-Container with a get-request to the AN-TL or CN-TL, respectively. The get-request is sent to AN-TL in the N2 SM information and to CN-TL in the N4 Session Establishment as described in clause 4.3.2.2 of TS 23.502[ Procedures for the 5G System (5GS) ]  [3]. If the NG-RAN/UPF supports AN-TL/CN-TL, the NG-RAN/AN-TL and UPF/CN-TL responds with a TL-Container including the elements defined for the get-response. The SMF/CUC may submit TL-Container including a set-request the elements defined for the set-request to NG-RAN/AN-TL and UPF/CN-TL. The set-request is sent to AN-TL in the N2 SM information and to CN-TL in the N4 Session Modification request as described in clause 4.3.3.2 of TS 23.502[ Procedures for the 5G System (5GS) ]  [3]. The SMF/CUC shall initiate to the CN-TL/AN-TL the deletion of TN stream configurations as described in 4.3.4.2 of TS 23.502[ Procedures for the 5G System (5GS) ]  [3]. The InterfaceConfiguration is associated with the corresponding QFI in the N3 tunnel in the NG-RAN or UPF, respectively. The AN-TL/CN-TL uses the provided configuration for the traffic in the QoS Flow of the given QFI as described in Annex M.