[{"name":"S2-2105669","title":"TS23.502 Correction to the NSAC for signalling optimisation","source":"NEC","contact":"Iskren Ianev","contact-id":59515,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: If NSAC for a network slice is supported in both, the 5GS and EPS, at UE intersystem change, de-registration from one of them and registration to the other of them for the same network slice is avoided, i.e followed the intra 5GS mobility behaviour. At 5GS to EPS handover, if NSAC is not required for the network slice in EPS, the AMF interacts with the NSACF to deregister the UE for network slice and the SMF+PGW-C interacts with the NSACF to deregister the PDU Session(s) from the network slice, if subject to NSAC in 5GS. At At EPS to 5GS handover, if NSAC is not required for the network slice in EPS, the AMF interacts with the NSACF to register the UE for the network slice in 5GS and the SMF+PGW-C interacts with the NSACF to register the PDU Session(s) from the network slice, if subject to NSAC in 5GS.","secretary_remarks":"Noted","agenda_item_sort_order":51,"ainumber":"8.4","ainame":"Enhancement of Network Slicing Phase 2 (eNS_Ph2)","tdoc_agenda_sort_order":17570,"status":"noted","reservation_date":"2021-08-09 12:54:23","uploaded":"2021-08-10 18:30:38","revisionof":"","revisedto":"","release":"Rel-17","crspec":23.502,"crspecversion":"17.1.0","workitem":[{"winame":"eNS_Ph2"}],"crnumber":2951.0,"crrevision":"","crcategory":"F","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"https:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_146E_Electronic_2021-08\/Docs\/S2-2105669.zip","group":"S2","meeting":"S2-146-e","year":2021,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0}]