[{"name":"S2-2006790","title":"LS from CT WG4: LS Reply on SNSSAI support in N4 Session Establishment","source":"CT WG4","contact":"Varini Gupta","contact-id":83459,"tdoctype":"LS in","for":"Information","abstract":"CT WG4 thanks SA WG5 for the LS on SNSSAI support in N4 Session Establishment (S5-202308). CT WG4 would like to inform SA WG5 that it has agreed to support S-NSSAI IE in the PFCP Session Establishment Request. Please find attached the CR that was agreed in CT WG4 Meeting #97E. CT WG4 would also like to inform SA WG5 that currently 5QI is not explicitly signalled to UPF in PFCP Session Management messages. Support of this in 3GPP TS 29.244 is FFS, and CT WG4 will inform SA WG5 once\/if support is added in specification.","secretary_remarks":"Revision of postponed S2-2004800 from S2#140E. Noted","agenda_item_sort_order":39,"ainumber":"7.10.2","ainame":"Enhancement of Network Slicing (eNS)","tdoc_agenda_sort_order":13010,"status":"noted","reservation_date":"2020-09-22 08:22:50","uploaded":"2020-09-22 09:22:30","revisionof":"S2-2004800","revisedto":"","release":"Rel-16","crspec":"","crspecversion":"","workitem":"","crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"","lsto":"SA WG5","Cc":"SA WG2","lsoriginalls":"C4-203215","lsreply":"","link":"https:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_141e_Electronic\/Docs\/S2-2006790.zip","group":"S2","meeting":"S2-141-e","year":2020,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-2006808","title":"LS from CT WG4: LS on Counter of UEs Registering Network Slice","source":"CT WG4","contact":"Yue Song","contact-id":57977,"tdoctype":"LS in","for":"Action","abstract":"CT WG4 is now working on implementing the requirement of counting Registered subscribers of network and network slice through UDM, as specified in 3GPP TS 28.554, clause 6.2.2: {. . . } CT WG4 have agreed the attached Rel-16 CR which allows AMFs to indicate to which network slices the UE is registered. During the discussion in CT WG4, the following questions have been raised regarding the stage-2 requirement: Question1: For a given UE, which S-NSSAIs are considered as being registered to and thus be signalled by AMF to UDM, E.g. the S-NSSAIs contained in the 'Allowed NSSAI' most recently sent to the UE? Question2: In a single registration scenario, when the UE handover\/TAU to 4G and consequently the UDM sends a deregistration notification to the AMF, is the UE considered as deregistered from the network slice? In a dual registration scenario, when the UE handover\/TAU to 4G and consequently the UDM does not send a deregistration notification to the AMF, is the UE still considered as registered to the network slice? Question3: If the UE newly registers via 3GPP while it is already registered via non-3GPP access (or vice versa) shall the UE be counted once or twice?. Action: CT WG4 kindly asks SA WG2 to consider whether corresponding procedures need to be specified, e.g. when the event which will impact the counting of UEs registered to network slice happens, the AMF shall update the registration in the UDM accordingly.","secretary_remarks":"Responses drafted in S2-2006843 and 2006942. Final response in S2-2008238","agenda_item_sort_order":39,"ainumber":"7.10.2","ainame":"Enhancement of Network Slicing (eNS)","tdoc_agenda_sort_order":12950,"status":"replied to","reservation_date":"2020-09-22 08:22:50","uploaded":"2020-09-22 15:39:21","revisionof":"","revisedto":"","release":"Rel-16","crspec":"","crspecversion":"","workitem":"","crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"","lsto":"SA WG5, SA WG2","Cc":"CT WG1","lsoriginalls":"C4-204421","lsreply":"S2-2008238","link":"https:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_141e_Electronic\/Docs\/S2-2006808.zip","group":"S2","meeting":"S2-141-e","year":2020,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-2006843","title":"[DRAFT] LS Reply on Counter of UEs Registering Network Slice","source":"Huawei, HiSilicon","contact":"Marco Spini","contact-id":8356,"tdoctype":"LS out","for":"Approval","abstract":"This contribution proposes to reply the LS on Counter of UEs Registering Network Slice.","secretary_remarks":"Response to S2-2006808 Merged into S2-2008238","agenda_item_sort_order":39,"ainumber":"7.10.2","ainame":"Enhancement of Network Slicing (eNS)","tdoc_agenda_sort_order":12960,"status":"merged","reservation_date":"2020-09-28 07:23:46","uploaded":"2020-10-02 06:35:11","revisionof":"","revisedto":"","release":"Rel-16","crspec":"","crspecversion":"","workitem":[{"winame":"SBIProtoc16"}],"crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"","lsto":"CT WG4","Cc":"","lsoriginalls":"","lsreply":"","link":"https:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_141e_Electronic\/Docs\/S2-2006843.zip","group":"S2","meeting":"S2-141-e","year":2020,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-2006942","title":"[DRAFT] Reply LS on Counter of UEs Registering Network Slice","source":"China Mobile","contact":"Dan Wang","contact-id":87155,"tdoctype":"LS out","for":"Approval","abstract":"[Draft] Reply LS on Counter of UEs Registering Network Slice","secretary_remarks":"Response to S2-2006808. R09 agreed. Revised, merging S2-2006843, to S2-2008238","agenda_item_sort_order":39,"ainumber":"7.10.2","ainame":"Enhancement of Network Slicing (eNS)","tdoc_agenda_sort_order":12970,"status":"revised","reservation_date":"2020-09-29 16:06:48","uploaded":"2020-09-30 03:36:52","revisionof":"","revisedto":"S2-2008238","release":"Rel-16","crspec":"","crspecversion":"","workitem":"","crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"","lsto":"CT WG4","Cc":"SA WG5","lsoriginalls":"","lsreply":"","link":"https:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_141e_Electronic\/Docs\/S2-2006942.zip","group":"S2","meeting":"S2-141-e","year":2020,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-2006958","title":"AMF provides the Allowed NSSAI to UDM after UE's successful registration","source":"China Mobile","contact":"Dan Wang","contact-id":87155,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: Align to CT WG4 LS and request: Adding procedures that AMF provides the Allowed NSSAI in the UDM when UE successfully register to the corresponding NSSAI.","secretary_remarks":"Noted","agenda_item_sort_order":39,"ainumber":"7.10.2","ainame":"Enhancement of Network Slicing (eNS)","tdoc_agenda_sort_order":12990,"status":"noted","reservation_date":"2020-09-30 02:48:51","uploaded":"2020-09-30 16:33:59","revisionof":"","revisedto":"","release":"Rel-16","crspec":"23.501","crspecversion":"16.6.0","workitem":[{"winame":"5GS_Ph1"}],"crnumber":2461.0,"crrevision":"","crcategory":"F","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"https:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_141e_Electronic\/Docs\/S2-2006958.zip","group":"S2","meeting":"S2-141-e","year":2020,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-2006959","title":"AMF provides the Allowed NSSAI to UDM after UE's successful registration","source":"China Mobile","contact":"Dan Wang","contact-id":87155,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: Align to CT WG4 LS and request: Adding procedures that AMF provides the Allowed NSSAI in the UDM when UE successfully registered to the corresponding NSSAI.","secretary_remarks":"Noted","agenda_item_sort_order":39,"ainumber":"7.10.2","ainame":"Enhancement of Network Slicing (eNS)","tdoc_agenda_sort_order":13000,"status":"noted","reservation_date":"2020-09-30 02:52:31","uploaded":"2020-09-30 16:41:27","revisionof":"","revisedto":"","release":"Rel-16","crspec":"23.502","crspecversion":"16.6.0","workitem":[{"winame":"5GS_Ph1"}],"crnumber":2408.0,"crrevision":"","crcategory":"F","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"https:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_141e_Electronic\/Docs\/S2-2006959.zip","group":"S2","meeting":"S2-141-e","year":2020,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-2007080","title":"Correction to Nnssaaf_NSSAA_Notify service","source":"Huawei, HiSilicon","contact":"Marco Spini","contact-id":8356,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: Revise Nnssaaf_NSSAA_Notify with re-auth event to Nssaaf_NSSAA_ Re-authenticationNotification; Revise Nnssaaf_NSSAA_Notify with Revoke Auth event Nssaaf_NSSAA_RevocationNotification.","secretary_remarks":"Approved","agenda_item_sort_order":39,"ainumber":"7.10.2","ainame":"Enhancement of Network Slicing (eNS)","tdoc_agenda_sort_order":13060,"status":"agreed","reservation_date":"2020-09-30 14:36:55","uploaded":"2020-10-02 12:00:51","revisionof":"","revisedto":"","release":"Rel-16","crspec":"23.502","crspecversion":"16.6.0","workitem":[{"winame":"eNS"}],"crnumber":2412.0,"crrevision":"","crcategory":"F","tsg_crp":"SP-200958","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"https:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_141e_Electronic\/Docs\/S2-2007080.zip","group":"S2","meeting":"S2-141-e","year":2020,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-2007082","title":"[DRAFT] Reply LS on Clarification on AAA-Server address","source":"Huawei, HiSilicon","contact":"Marco Spini","contact-id":8356,"tdoctype":"LS out","for":"Approval","abstract":"Resubmission of S2-2005477. SA WG2 confirms to CT WG4 that the AAA-S address is sent by the AMF to the NSSAAF in step 4 of the procedure. Stage 2 procedures, and even more so for figures, do not necessarily include all parameters. SA WG2 confirms also tha","secretary_remarks":"Response to S2-2006785. Noted","agenda_item_sort_order":39,"ainumber":"7.10.2","ainame":"Enhancement of Network Slicing (eNS)","tdoc_agenda_sort_order":13020,"status":"noted","reservation_date":"2020-09-30 14:36:57","uploaded":"2020-10-02 12:00:51","revisionof":"","revisedto":"","release":"Rel-16","crspec":"","crspecversion":"","workitem":[{"winame":"eNS"}],"crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"","lsto":"CT WG4","Cc":"SA WG3,CT","lsoriginalls":"","lsreply":"","link":"https:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_141e_Electronic\/Docs\/S2-2007082.zip","group":"S2","meeting":"S2-141-e","year":2020,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-2007299","title":"NSAAA re-authentication by AAA-S","source":"Ericsson","contact":"Shabnam Sultana","contact-id":21207,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: AMF logic added to update the NSSAA status in case AAA-S invokes re-authentication or revokation procedure as to ensure a new NSSAA is executed in case the UE tries to register the S-NSSAI again. Also, in the Figure 4.2.9.3-1, Step 3c","secretary_remarks":"Revision of S2-2005576 from S2#140E. R01 agreed. Revised to S2-2008239","agenda_item_sort_order":39,"ainumber":"7.10.2","ainame":"Enhancement of Network Slicing (eNS)","tdoc_agenda_sort_order":13070,"status":"revised","reservation_date":"2020-10-01 20:14:14","uploaded":"2020-10-02 19:25:58","revisionof":"S2-2005576","revisedto":"S2-2008239","release":"Rel-16","crspec":"23.502","crspecversion":"16.6.0","workitem":[{"winame":"eNS"}],"crnumber":2383.0,"crrevision":1.0,"crcategory":"F","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"https:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_141e_Electronic\/Docs\/S2-2007299.zip","group":"S2","meeting":"S2-141-e","year":2020,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-2007300","title":"Handling of AAA-S address in NSSAA","source":"Ericsson","contact":"Shabnam Sultana","contact-id":21207,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: AAA-S address is removed from slice subscription information kept at UDM.","secretary_remarks":"Revision of S2-2004877 from S2#140E. CC#2: This was approved with an objection from Huawei.","agenda_item_sort_order":39,"ainumber":"7.10.2","ainame":"Enhancement of Network Slicing (eNS)","tdoc_agenda_sort_order":13040,"status":"agreed","reservation_date":"2020-10-01 20:14:16","uploaded":"2020-10-02 21:22:04","revisionof":"S2-2004877","revisedto":"","release":"Rel-16","crspec":"23.501","crspecversion":"16.6.0","workitem":[{"winame":"eNS"}],"crnumber":2389.0,"crrevision":1.0,"crcategory":"F","tsg_crp":"SP-200946","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"https:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_141e_Electronic\/Docs\/S2-2007300.zip","group":"S2","meeting":"S2-141-e","year":2020,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-2007301","title":"Handling of AAA-S address in NSSAA","source":"Ericsson","contact":"Shabnam Sultana","contact-id":21207,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: AAA-S address is removed from description of step 4 of NSSAA procedures described in section 4.2.9.2. It is also specified that NSSAAF keeps the relation of the AAA-S address per S-NSSAAI.","secretary_remarks":"Revision of S2-2004878 from S2#140E. Should be CR 2332R1. CC#2: This was approved with an objection from Huawei.","agenda_item_sort_order":39,"ainumber":"7.10.2","ainame":"Enhancement of Network Slicing (eNS)","tdoc_agenda_sort_order":13050,"status":"agreed","reservation_date":"2020-10-01 20:14:17","uploaded":"2020-10-02 21:22:04","revisionof":"S2-2004878","revisedto":"","release":"Rel-16","crspec":"23.502","crspecversion":"16.6.0","workitem":[{"winame":"eNS"}],"crnumber":2332.0,"crrevision":1.0,"crcategory":"F","tsg_crp":"SP-200946","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"https:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_141e_Electronic\/Docs\/S2-2007301.zip","group":"S2","meeting":"S2-141-e","year":2020,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-2007302","title":"Handling of AAA-S address in NSSAA.","source":"Ericsson","contact":"Shabnam Sultana","contact-id":21207,"tdoctype":"discussion","for":"Agreement","abstract":"This paper discusses the handling of the AAA-S address in NSSAA.","secretary_remarks":"Noted","agenda_item_sort_order":39,"ainumber":"7.10.2","ainame":"Enhancement of Network Slicing (eNS)","tdoc_agenda_sort_order":13030,"status":"noted","reservation_date":"2020-10-01 20:14:18","uploaded":"2020-10-02 21:22:04","revisionof":"","revisedto":"","release":"Rel-16","crspec":"","crspecversion":"","workitem":[{"winame":"eNS"}],"crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"https:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_141e_Electronic\/Docs\/S2-2007302.zip","group":"S2","meeting":"S2-141-e","year":2020,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-2007315","title":"Removal of NSSAA related statements","source":"Ericsson, Nokia, Nokia Shanghai Bell, Telecom Italia","contact":"Shabnam Sultana","contact-id":21207,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: Removal of editor's note already resolved and removal of mobility restriction statement resolved by stage 3 using another logic.","secretary_remarks":"Approved","agenda_item_sort_order":39,"ainumber":"7.10.2","ainame":"Enhancement of Network Slicing (eNS)","tdoc_agenda_sort_order":13090,"status":"agreed","reservation_date":"2020-10-01 20:14:21","uploaded":"2020-10-02 21:22:04","revisionof":"","revisedto":"","release":"Rel-16","crspec":"23.501","crspecversion":"16.6.0","workitem":[{"winame":"eNS"}],"crnumber":2487.0,"crrevision":"","crcategory":"F","tsg_crp":"SP-200958","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"https:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_141e_Electronic\/Docs\/S2-2007315.zip","group":"S2","meeting":"S2-141-e","year":2020,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-2007451","title":"Discussion on discriminating PLMNs in NSSAA.","source":"Huawei, HiSilicon","contact":"Marco Spini","contact-id":8356,"tdoctype":"discussion","for":"Agreement","abstract":"This discussion paper aims at explaining NSSAA will fail or cause errors at AAA-S when UE register to two PLMNs and proposes a simple fix with added PLMN ID in the messages to AAA-S.","secretary_remarks":"Noted","agenda_item_sort_order":39,"ainumber":"7.10.2","ainame":"Enhancement of Network Slicing (eNS)","tdoc_agenda_sort_order":13100,"status":"noted","reservation_date":"2020-10-02 08:13:17","uploaded":"2020-10-02 12:00:51","revisionof":"","revisedto":"","release":"Rel-16","crspec":"","crspecversion":"","workitem":[{"winame":"eNS"}],"crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"https:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_141e_Electronic\/Docs\/S2-2007451.zip","group":"S2","meeting":"S2-141-e","year":2020,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-2007452","title":"Correction to NSSAA to prevent failure in two-PLMN scenario","source":"Huawei, HiSilicon","contact":"Marco Spini","contact-id":8356,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: Adding PLMN-ID of the serving PLMN to request from NSSAAF to AAA-S(P)","secretary_remarks":"Postponed","agenda_item_sort_order":39,"ainumber":"7.10.2","ainame":"Enhancement of Network Slicing (eNS)","tdoc_agenda_sort_order":13110,"status":"postponed","reservation_date":"2020-10-02 08:13:17","uploaded":"2020-10-02 12:00:51","revisionof":"","revisedto":"","release":"Rel-16","crspec":"23.502","crspecversion":"16.6.0","workitem":[{"winame":"eNS"}],"crnumber":2429.0,"crrevision":"","crcategory":"F","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"https:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_141e_Electronic\/Docs\/S2-2007452.zip","group":"S2","meeting":"S2-141-e","year":2020,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-2008238","title":"Reply LS on Counter of UEs Registering Network Slice","source":"SA WG2","contact":"Dan Wang","contact-id":87155,"tdoctype":"LS out","for":"Approval","abstract":"To: CT WG4, SA WG5. CC: CT WG1","secretary_remarks":"Revision of S2-2006942R09, merging S2-2006843. Approved","agenda_item_sort_order":39,"ainumber":"7.10.2","ainame":"Enhancement of Network Slicing (eNS)","tdoc_agenda_sort_order":12980,"status":"approved","reservation_date":"2020-10-19 05:20:50","uploaded":"2020-10-20 07:13:48","revisionof":"S2-2006942","revisedto":"","release":"Rel-16","crspec":"","crspecversion":"","workitem":"","crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"S2-2006808","lsto":"CT WG4, SA WG5","Cc":"CT WG1","lsoriginalls":"","lsreply":"","link":"https:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_141e_Electronic\/Docs\/S2-2008238.zip","group":"S2","meeting":"S2-141-e","year":2020,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-2008239","title":"NSAAA re-authentication by AAA-S","source":"Ericsson","contact":"Shabnam Sultana","contact-id":21207,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: AMF logic added to update the NSSAA status in case AAA-S invokes re-authentication or revokation procedure as to ensure a new NSSAA is executed in case the UE tries to register the S-NSSAI again. Also, in the Figure 4.2.9.3-1, Step 3c","secretary_remarks":"Revision of S2-2007299R01. Approved","agenda_item_sort_order":39,"ainumber":"7.10.2","ainame":"Enhancement of Network Slicing (eNS)","tdoc_agenda_sort_order":13080,"status":"agreed","reservation_date":"2020-10-19 05:20:50","uploaded":"2020-10-20 07:13:48","revisionof":"S2-2007299","revisedto":"","release":"Rel-16","crspec":"23.502","crspecversion":"16.6.0","workitem":[{"winame":"eNS"}],"crnumber":2383.0,"crrevision":2.0,"crcategory":"F","tsg_crp":"SP-200958","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"https:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_141e_Electronic\/Docs\/S2-2008239.zip","group":"S2","meeting":"S2-141-e","year":2020,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0}]