[{"name":"S2-2002648","title":"LS from CT WG4: SMS and UDM","source":"CT WG4","contact":"Maurice Pope","contact-id":648,"tdoctype":"LS in","for":"Action","abstract":"CT WG4 has concluded the stage 2 and stage 3 UDICOM work item for interworking between the HSS and the UDM for rel-16. In 3GPP TS 23.632, clause 5.5 'SMS Support' describes the necessary procedures for HSS - UDM interworking for SMS where it is assumed that SMS MT is handled by the HSS over legacy MAP and Diameter S6c interfaces from the SMS-GMSC\/IWMSC\/SMS Router and adds the necessary procedures for interworking with the UDM to support SMS in 5G. In 3GPP TS 23.501, clause 4.4.2 'SMS over NAS', describes the UDM interacting directly with the SMS-GMSC\/IWMSC\/SMS Router without interworking through the HSS. In 3GPP TS 23.040, Annex K, clause K.1 indicates that for SMS in 5GS the UDM is mapped to the HLR. With the introduction of the UDICOM HSS - UDM interworking, it is thus questioned if there is still a need for the UDM to interface with the SMS-GMSC\/IWMSC\/SMS Router for the purpose of SMS, or if this function can remain in the HSS. On one hand, allowing SMS to remain with the HSS is in-line with what SA WG2 decided for IMS in 3GPP TR 23.732, clause 8.2 'For IMS and 5GS interworking required for T-ADS, P-CSCF restoration and NPLI retrieval' and will allow all legacy protocols to remain with the HSS. On the other hand, CT WG4 discussed about the implications for a 5G-only operator to be required to deploy an HSS solely for the purpose of SMS handling, and would like to hear SA WG2's view on such type of deployments. Action: CT WG4 kindly asks SA WG2 to: - consider introducing the HSS to 3GPP TS 23.501 (and any other applicable specifications) for the purpose of interfacing with the SMS-GMSC\/IWMSC\/SMS Router, - provide feedback on the 5G-only deployment scenario mentioned above.","secretary_remarks":"Responses drafted in S2-2002710 and S2-2003155. Final response in S2-2003491","agenda_item_sort_order":41,"ainumber":"7.10.5","ainame":"User Data Interworking and Coexistence (UDICoM)","tdoc_agenda_sort_order":17350,"status":"replied to","reservation_date":"2020-03-26 10:57:38","uploaded":"2020-03-27 15:57:56","revisionof":"","revisedto":"","release":"Rel-16","crspec":"","crspecversion":"","workitem":"","crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"","lsto":"SA WG2, CT WG1","Cc":"","lsoriginalls":"C4-201045","lsreply":"S2-2003491","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_138e_Electronic\/Docs\/S2-2002648.zip","group":"S2","meeting":"S2-ah-35701","year":2020,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-2002710","title":"[DRAFT] Reply LS on SMS and UDM","source":"Ericsson","contact":"Shabnam Sultana","contact-id":21207,"tdoctype":"LS out","for":"Approval","abstract":"This LS provides a response to CT WG4 on the UDM behavior in case of an only 5G deplyment.","secretary_remarks":"Response to S2-2002648. e-meeting r01 agreed. Revised to S2-2003491.","agenda_item_sort_order":41,"ainumber":"7.10.5","ainame":"User Data Interworking and Coexistence (UDICoM)","tdoc_agenda_sort_order":17360,"status":"revised","reservation_date":"2020-04-07 20:03:22","uploaded":"2020-04-10 19:29:05","revisionof":"","revisedto":"S2-2003491","release":"","crspec":"","crspecversion":"","workitem":[{"winame":"UDICOM"}],"crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"","lsto":"CT WG4","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_138e_Electronic\/Docs\/S2-2002710.zip","group":"S2","meeting":"S2-ah-35701","year":2020,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-2002711","title":"Clarification on SMS over NAS architecture in 5GS only Deployments","source":"Ericsson","contact":"Shabnam Sultana","contact-id":21207,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: Clarify that the UDM supports the legacy interfaces with the SMS-GMSC\/IWMSC\/SMS Router for SMS in 5GS without the need to deploy the HSS. Clarify that in interworking scenarios with EPS (and 2G\/3G), the HSS is deployed in a combined HSS+UDM or as a separate network function and may expose the legacy interfaces required for SMS.","secretary_remarks":"Noted","agenda_item_sort_order":41,"ainumber":"7.10.5","ainame":"User Data Interworking and Coexistence (UDICoM)","tdoc_agenda_sort_order":17390,"status":"noted","reservation_date":"2020-04-07 20:03:22","uploaded":"2020-04-10 19:29:05","revisionof":"","revisedto":"","release":"Rel-16","crspec":23.501,"crspecversion":"16.4.0","workitem":[{"winame":"UDICOM"}],"crnumber":2231.0,"crrevision":"","crcategory":"F","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_138e_Electronic\/Docs\/S2-2002711.zip","group":"S2","meeting":"S2-ah-35701","year":2020,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-2002712","title":"Common Network Exposure","source":"Ericsson","contact":"Shabnam Sultana","contact-id":21207,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: This CR proposes to have a common network event exposure via UDM. NEF+SCEF indicates to UDM that it requires the event reporting performed also by EPC domain (i.e. MME reporting via t6a interface) in addition to 5GC domain by requesting explicitly the monitoring in EPC. When the HSS and the UDM are deployed as separete network entities, UDM then consumes services produced by HSS (to be defined in TS 23.362) so that HSS and MME are able to report events to the combined SCEF+NEF. Additionally, the option of subscribing to monitoring events via S6t is now deprecated, since it requires to impact legacy protocols (diameter) to convey callback URIs (NEF notification URI) which are specific to SBI.","secretary_remarks":"Approved","agenda_item_sort_order":41,"ainumber":"7.10.5","ainame":"User Data Interworking and Coexistence (UDICoM)","tdoc_agenda_sort_order":17410,"status":"agreed","reservation_date":"2020-04-07 20:03:24","uploaded":"2020-04-10 19:29:05","revisionof":"","revisedto":"","release":"Rel-16","crspec":23.501,"crspecversion":"16.4.0","workitem":[{"winame":"UDICOM"}],"crnumber":2232.0,"crrevision":"","crcategory":"F","tsg_crp":"SP-200437","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_138e_Electronic\/Docs\/S2-2002712.zip","group":"S2","meeting":"S2-ah-35701","year":2020,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-2002713","title":"Common Network Exposure","source":"Ericsson","contact":"Shabnam Sultana","contact-id":21207,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: This CR proposes a flow for common network event exposure via UDM. NEF+SCEF indicates to UDM that it requires the event reporting performed also by EPC domain (i.e. MME reporting via t6a interface) in addition to 5GC domain by requesting explicitly the monitoring in EPC. When the HSS and the UDM are deployed as separete network entities, UDM then consumes services produced by HSS (to be defined in TS 23.362) so that HSS and MME are able to report events to the combined SCEF+NEF.","secretary_remarks":"Approved","agenda_item_sort_order":41,"ainumber":"7.10.5","ainame":"User Data Interworking and Coexistence (UDICoM)","tdoc_agenda_sort_order":17420,"status":"agreed","reservation_date":"2020-04-07 20:03:25","uploaded":"2020-04-10 19:29:05","revisionof":"","revisedto":"","release":"Rel-16","crspec":23.502,"crspecversion":"16.4.0","workitem":[{"winame":"UDICOM"}],"crnumber":2178.0,"crrevision":"","crcategory":"F","tsg_crp":"SP-200437","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_138e_Electronic\/Docs\/S2-2002713.zip","group":"S2","meeting":"S2-ah-35701","year":2020,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-2003102","title":"User State Information in 5GS","source":"Ericsson","contact":"Shabnam Sultana","contact-id":21207,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: Remove event 'User State Information in 5GS' from Table 4.15.3.1-1 for Monitoring Event via NEF.","secretary_remarks":"e-meeting r01 agreed. Revised to S2-2003492.","agenda_item_sort_order":41,"ainumber":"7.10.5","ainame":"User Data Interworking and Coexistence (UDICoM)","tdoc_agenda_sort_order":17430,"status":"revised","reservation_date":"2020-04-10 12:26:55","uploaded":"2020-04-10 19:32:32","revisionof":"","revisedto":"S2-2003492","release":"Rel-16","crspec":23.502,"crspecversion":"16.4.0","workitem":[{"winame":"UDICOM"}],"crnumber":2283.0,"crrevision":"","crcategory":"F","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_138e_Electronic\/Docs\/S2-2003102.zip","group":"S2","meeting":"S2-ah-35701","year":2020,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-2003155","title":"[DRAFT] Reply LS on SMS and UDM","source":"Hewlett-Packard Enterprise","contact":"Anders Askerup","contact-id":26315,"tdoctype":"LS out","for":"Approval","abstract":"To: CT WG4, CT WG1","secretary_remarks":"Response to S2-2002648. Noted","agenda_item_sort_order":41,"ainumber":"7.10.5","ainame":"User Data Interworking and Coexistence (UDICoM)","tdoc_agenda_sort_order":17380,"status":"noted","reservation_date":"2020-04-10 16:23:08","uploaded":"2020-04-10 18:10:36","revisionof":"","revisedto":"","release":"Rel-16","crspec":"","crspecversion":"","workitem":[{"winame":"UDICOM"}],"crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"","lsto":"CT WG4, CT WG1","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_138e_Electronic\/Docs\/S2-2003155.zip","group":"S2","meeting":"S2-ah-35701","year":2020,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-2003162","title":"HSS for SMS MT in 5G","source":"Hewlett-Packard Enterprise","contact":"Anders Askerup","contact-id":26315,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: - Add 3GPP TS 23.632 'User data interworking, coexistence and migration' as a reference - Update 4.4.2 SMS over NAS to include the HSS - Show that the SMS-GMSC\/IWMSC\/SMS Router terminates in the HSS - Show that the HSS - UDM interworking is conducted over the NU1 interface.","secretary_remarks":"Noted","agenda_item_sort_order":41,"ainumber":"7.10.5","ainame":"User Data Interworking and Coexistence (UDICoM)","tdoc_agenda_sort_order":17400,"status":"noted","reservation_date":"2020-04-10 17:09:37","uploaded":"2020-04-10 18:10:36","revisionof":"","revisedto":"","release":"Rel-16","crspec":23.501,"crspecversion":"16.4.0","workitem":[{"winame":"UDICOM"}],"crnumber":2360.0,"crrevision":"","crcategory":"F","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_138e_Electronic\/Docs\/S2-2003162.zip","group":"S2","meeting":"S2-ah-35701","year":2020,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-2003491","title":"Reply LS on SMS and UDM","source":"SA WG2","contact":"George Foti","contact-id":41317,"tdoctype":"LS out","for":"Approval","abstract":"To: CT WG4","secretary_remarks":"Revision of S2-2002710. Approved","agenda_item_sort_order":41,"ainumber":"7.10.5","ainame":"User Data Interworking and Coexistence (UDICoM)","tdoc_agenda_sort_order":17370,"status":"approved","reservation_date":"2020-04-27 09:11:32","uploaded":"2020-04-28 06:57:52","revisionof":"S2-2002710","revisedto":"","release":"","crspec":"","crspecversion":"","workitem":[{"winame":"UDICOM"}],"crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"S2-2002648","lsto":"CT WG4","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_138e_Electronic\/Docs\/S2-2003491.zip","group":"S2","meeting":"S2-ah-35701","year":2020,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-2003492","title":"User State Information in 5GS","source":"Ericsson","contact":"Shabnam Sultana","contact-id":21207,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: Remove event 'User State Information in 5GS' from Table 4.15.3.1-1 for Monitoring Event via NEF. Add a reference to 23.632 in clause 5.2.2.3.1","secretary_remarks":"Revision of S2-2003102. Approved","agenda_item_sort_order":41,"ainumber":"7.10.5","ainame":"User Data Interworking and Coexistence (UDICoM)","tdoc_agenda_sort_order":17440,"status":"agreed","reservation_date":"2020-04-27 09:11:33","uploaded":"2020-04-28 06:57:52","revisionof":"S2-2003102","revisedto":"","release":"Rel-16","crspec":23.502,"crspecversion":"16.4.0","workitem":[{"winame":"UDICOM"}],"crnumber":2283.0,"crrevision":1.0,"crcategory":"F","tsg_crp":"SP-200437","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_138e_Electronic\/Docs\/S2-2003492.zip","group":"S2","meeting":"S2-ah-35701","year":2020,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0}]