[{"name":"S2-2202721","title":"NW-TT Identification and Clock Drift Report","source":"CATT","contact":"Chunshan Xiong","contact-id":94840,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: N4 Association Setup procedure can be used to request the UPF to measure and report the clock drift between the external time and 5GS time for one or more external time domains by provisioning External Clock Drift Report and providing the corresponding Time Domain number(s) and network instance (if available ) as specified in TS\u00a029.244\u00a0[69]. If there are multiple NW-TTs configured in the UPF as described in clause 4.4.8.3 of TS 23.501 [2], the SMF includes the network instance to request the associated NW-TT with the network instance in the UPF. The SMF may include network instance and omit the Time domain number in the request, in this case the UPF shall report the clock drift for all Time domains connected to the NW-TT associated with the network instance; The SMF may omit the Time domain number and network instance in the request; in this case the UPF shall report the clock drift for all Time domains the UPF is connected to.","secretary_remarks":"Noted","agenda_item_sort_order":13,"ainumber":"8.5","ainame":"Enhanced support of Industrial IoT - TSC\/URLLC enhancements (IIoT)","tdoc_agenda_sort_order":12300,"status":"noted","reservation_date":"2022-03-29 13:56:41","uploaded":"2022-03-29 14:20:41","revisionof":"","revisedto":"","release":"Rel-17","crspec":"23.502","crspecversion":"17.4.0","workitem":[{"winame":"IIoT"}],"crnumber":3452.0,"crrevision":"","crcategory":"F","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"https:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_150E_Electronic_2022-04\/Docs\/S2-2202721.zip","group":"S2","meeting":"S2-150-e","year":2022,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0}]