[{"name":"S2-2002659","title":"LS from RAN WG3: Reply LS on QoS monitoring for URLLC","source":"RAN WG3","contact":"Maurice Pope","contact-id":648,"tdoctype":"LS in","for":"Action","abstract":"RAN WG3 thanks SA WG5 for the LS on per QoS flow monitoring in Rel-16. RAN WG3 discussed based on the LS and agreed to support only one QoS monitoring mechanism which is for the case when NG-RAN and UPF are not time synchronized, based on the understanding that this mechanism works even if NG-RAN and UPF are time synchronized. From RAN WG3's understanding, UPF can still calculate DL delay (T2-T1) and UL delay (T4-T3) separately between NG-RAN and UPF, instead of calculating RTT by (T4-T1) - (T3-T2). Per QoS flow monitoring configuration from SMF over NG-RAN and support of GTP-U headers by the PDU Session Container GTP-U extension header over NG-U are addressed by the agreed TPs in the attached. Question to SA WG2: Q1) As per TS 23.501 Section 5.33.3, it says: - When receiving the UL packet from UE or when the NG-RAN sends the dummy UL packet as monitoring response, the NG-RAN encapsulates QMP indicator, the UL\/DL packet delay result of Uu interface, the time T1 received in the GTP-U header, the local time T2 at the reception of the DL monitoring packets and local time T3 when NG-RAN sends out this monitoring response packet to the UPF via N3 interface, in the GTP-U header of the monitoring response packet. But there is another RAN part delay definition in TS 38.314 owned by RAN WG2: NOTE: The total RAN part of UL packet delay measurement is the sum of D1(PDCP queuing delay, as defined in 4.2.1), D2.1(over-the-air delay, as defined in 4.1.1.2.1), D2.2(RLC delay, as defined in 4.1.1.2.2), D2.3(F1 delay, as defined in TS 28.552 [2]) and D2.4(PDCP re-ordering delay, as defined in 4.1.1.2.3) RAN WG3 would like to ask SA WG2 to clarify the definition of the UL packet delay result of Uu interface. Does the D1 defined in TS 38.314 is included in the UL packet delay result of Uu interface stated in TS 23.501 from requirement point of view? Q2) The RAN part of delay consists of several components which may need to be measured at different entities (e.g. CU-UP, DU) within NG-RAN. Does SA WG2 assume a measurement period is required for the RAN part of delay measurement? Action: RAN WG3 kindly asks SA WG2 to update stage-2 description in TS 23.501 Section 5.33.3.2 based on the RAN WG3 decision and provide feedback on the questions.","secretary_remarks":"Responses drafted in S2-2002838, S2-2002953 and S2-2003167. Final response in S2-2003468","agenda_item_sort_order":37,"ainumber":"7.10.1","ainame":"Enhancement of URLLC supporting in 5GC (5G_URLLC)","tdoc_agenda_sort_order":16470,"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 WG5, SA WG2","Cc":"RAN WG2, SA WG1, CT WG4","lsoriginalls":"R3-201372","lsreply":"S2-2003468","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_138e_Electronic\/Docs\/S2-2002659.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":"S2-2002680","title":"Update of QoS monitoring for URLLC based on RAN WG3 decision","source":"Intel","contact":"Saso Stojanovski","contact-id":24932,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: Updates clause 5.33.3.2 based on RAN WG3 decision in S2-2002659 \/ R3-201372.","secretary_remarks":"e-meeting r01 agreed. Revised to S2-2003469.","agenda_item_sort_order":37,"ainumber":"7.10.1","ainame":"Enhancement of URLLC supporting in 5GC (5G_URLLC)","tdoc_agenda_sort_order":16550,"status":"revised","reservation_date":"2020-04-03 09:39:21","uploaded":"2020-04-10 19:55:47","revisionof":"","revisedto":"S2-2003469","release":"Rel-16","crspec":23.501,"crspecversion":"16.4.0","workitem":[{"winame":"5G_URLLC"}],"crnumber":2222.0,"crrevision":"","crcategory":"F","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_138e_Electronic\/Docs\/S2-2002680.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":"S2-2002835","title":"Corrections to conditions for establishment of redundant PDU Sessions","source":"MediaTek Inc.","contact":"Guillaume Sebire","contact-id":45073,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: The use of UE local configuration is added in addition to URSP rules.","secretary_remarks":"Noted","agenda_item_sort_order":37,"ainumber":"7.10.1","ainame":"Enhancement of URLLC supporting in 5GC (5G_URLLC)","tdoc_agenda_sort_order":16590,"status":"noted","reservation_date":"2020-04-09 12:14:53","uploaded":"2020-04-09 17:02:56","revisionof":"","revisedto":"","release":"Rel-16","crspec":23.501,"crspecversion":"16.4.0","workitem":[{"winame":"5G_URLLC"}],"crnumber":2260.0,"crrevision":"","crcategory":"F","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_138e_Electronic\/Docs\/S2-2002835.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":"S2-2002838","title":"[DRAFT] Reply LS on QoS Monitoring for URLLC","source":"Huawei, HiSilicon","contact":"Marco Spini","contact-id":8356,"tdoctype":"LS out","for":"Approval","abstract":"Reply LS to RAN WG3 on QoS Monitoring","secretary_remarks":"Response, merging S2-2002953, to S2-2002659. e-meeting r02 agreed. Revised to S2-2003468.","agenda_item_sort_order":37,"ainumber":"7.10.1","ainame":"Enhancement of URLLC supporting in 5GC (5G_URLLC)","tdoc_agenda_sort_order":16490,"status":"revised","reservation_date":"2020-04-09 12:19:41","uploaded":"2020-04-10 09:57:57","revisionof":"","revisedto":"S2-2003468","release":"Rel-16","crspec":"","crspecversion":"","workitem":[{"winame":"5G_URLLC"}],"crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"","lsto":"RAN WG3, RAN WG2","Cc":"SA WG5","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_138e_Electronic\/Docs\/S2-2002838.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":"S2-2002839","title":"Packet delay of RAN for QoS Monitoring","source":"Huawei, HiSilicon","contact":"Marco Spini","contact-id":8356,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: Update the QoS Monitoring solution on the packet delay measured by RAN.","secretary_remarks":"Merged into S2-2003470","agenda_item_sort_order":37,"ainumber":"7.10.1","ainame":"Enhancement of URLLC supporting in 5GC (5G_URLLC)","tdoc_agenda_sort_order":16530,"status":"merged","reservation_date":"2020-04-09 12:19:41","uploaded":"2020-04-10 09:57:57","revisionof":"","revisedto":"","release":"Rel-16","crspec":23.501,"crspecversion":"16.4.0","workitem":[{"winame":"5G_URLLC"}],"crnumber":2261.0,"crrevision":"","crcategory":"F","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_138e_Electronic\/Docs\/S2-2002839.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":"S2-2002840","title":"Packet delay of RAN for QoS Monitoring","source":"Huawei, HiSilicon","contact":"Marco Spini","contact-id":8356,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: Update the QoS Monitoring solution on the packet delay measured by RAN.","secretary_remarks":"Approved","agenda_item_sort_order":37,"ainumber":"7.10.1","ainame":"Enhancement of URLLC supporting in 5GC (5G_URLLC)","tdoc_agenda_sort_order":16540,"status":"agreed","reservation_date":"2020-04-09 12:19:42","uploaded":"2020-04-10 09:57:57","revisionof":"","revisedto":"","release":"Rel-16","crspec":23.502,"crspecversion":"16.4.0","workitem":[{"winame":"5G_URLLC"}],"crnumber":2206.0,"crrevision":"","crcategory":"F","tsg_crp":"SP-200425","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_138e_Electronic\/Docs\/S2-2002840.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":"S2-2002949","title":"Correction of RAN part of packet delay for QoS monitoring","source":"Qualcomm Incorporated","contact":"Juan Zhang","contact-id":73274,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: - change the UL\/DL packet delay on Uu interface to RAN part of UL\/DL delay. - clarify that the RAN part of UL\/DL packet delay including delays of PDCP queuing, RLC, PDCP reordering, F1-U, Xn-U, Uu interfaces for NR which are defined in TS 38.314) - add TS 38.314 as new reference.","secretary_remarks":"e-meeting r02 agreed. Revised, merging S2-2002839, to S2-2003470.","agenda_item_sort_order":37,"ainumber":"7.10.1","ainame":"Enhancement of URLLC supporting in 5GC (5G_URLLC)","tdoc_agenda_sort_order":16570,"status":"revised","reservation_date":"2020-04-10 06:36:08","uploaded":"2020-04-10 07:05:51","revisionof":"","revisedto":"S2-2003470","release":"Rel-16","crspec":23.501,"crspecversion":"16.4.0","workitem":[{"winame":"5G_URLLC"}],"crnumber":2293.0,"crrevision":"","crcategory":"F","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_138e_Electronic\/Docs\/S2-2002949.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":"S2-2002953","title":"[DRAFT] Reply reply LS on QoS monitoring for URLLC","source":"QUALCOMM Europe Inc. - Italy","contact":"Juan Zhang","contact-id":73274,"tdoctype":"LS out","for":"Approval","abstract":"To: RAN WG3. CC: RAN WG2, SA WG1, CT WG4","secretary_remarks":"Response to S2-2002659 Merged into S2-2003468","agenda_item_sort_order":37,"ainumber":"7.10.1","ainame":"Enhancement of URLLC supporting in 5GC (5G_URLLC)","tdoc_agenda_sort_order":16510,"status":"merged","reservation_date":"2020-04-10 06:50:32","uploaded":"2020-04-10 07:05:51","revisionof":"","revisedto":"","release":"Rel-16","crspec":"","crspecversion":"","workitem":[{"winame":"5G_URLLC"}],"crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"","lsto":"RAN WG3","Cc":"RAN WG2, SA WG1, CT WG4","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_138e_Electronic\/Docs\/S2-2002953.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":"S2-2003120","title":"Clarification on the late notifation for the target AF","source":"Samsung","contact":"Kisuk Kweon","contact-id":80126,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: It is clarified when a late notification is requested by the AF, if the target local DN is associated with another AF instance, the AF informs the SMF of the information of the target AF in order for the SMF to send notification to the target AF.","secretary_remarks":"e-meeting r03 agreed. Revised to S2-2003471.","agenda_item_sort_order":37,"ainumber":"7.10.1","ainame":"Enhancement of URLLC supporting in 5GC (5G_URLLC)","tdoc_agenda_sort_order":16600,"status":"revised","reservation_date":"2020-04-10 13:34:04","uploaded":"2020-04-10 14:32:48","revisionof":"","revisedto":"S2-2003471","release":"Rel-16","crspec":23.502,"crspecversion":"16.4.0","workitem":[{"winame":"FS_5G_URLLC"},{"winame":"5G_URLLC"}],"crnumber":2287.0,"crrevision":"","crcategory":"F","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_138e_Electronic\/Docs\/S2-2003120.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":"S2-2003167","title":"[DRAFT] Reply LS on QoS monitoring for URLLC","source":"Ericsson Inc.","contact":"Shabnam Sultana","contact-id":21207,"tdoctype":"LS out","for":"Approval","abstract":"To: SA WG5, RAN WG3. CC: RAN WG2, SA WG1, CT WG4","secretary_remarks":"Response to S2-2002659. Noted","agenda_item_sort_order":37,"ainumber":"7.10.1","ainame":"Enhancement of URLLC supporting in 5GC (5G_URLLC)","tdoc_agenda_sort_order":16520,"status":"noted","reservation_date":"2020-04-10 17:34:18","uploaded":"2020-04-10 19:32:32","revisionof":"","revisedto":"","release":"Rel-16","crspec":"","crspecversion":"","workitem":[{"winame":"NR_SON_MDT"},{"winame":"5G_URLLC"}],"crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"","lsto":"SA WG5, RAN WG3","Cc":"RAN WG2, SA WG1, CT WG4","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_138e_Electronic\/Docs\/S2-2003167.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":"S2-2003169","title":"Discussion on QoS monitoring for URLLC .","source":"Ericsson","contact":"Shabnam Sultana","contact-id":21207,"tdoctype":"discussion","for":"Agreement","abstract":"This contribution discusses questions raised by RAN WG3 in LS on QoS monitoring for URLLC (S2-2003167)","secretary_remarks":"Noted","agenda_item_sort_order":37,"ainumber":"7.10.1","ainame":"Enhancement of URLLC supporting in 5GC (5G_URLLC)","tdoc_agenda_sort_order":16480,"status":"noted","reservation_date":"2020-04-10 17:38:05","uploaded":"2020-04-10 19:32:32","revisionof":"","revisedto":"","release":"Rel-16","crspec":"","crspecversion":"","workitem":[{"winame":"5G_URLLC"}],"crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_138e_Electronic\/Docs\/S2-2003169.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":"S2-2003468","title":"Reply LS on QoS Monitoring for URLLC","source":"SA WG2","contact":"Susan SHI","contact-id":81582,"tdoctype":"LS out","for":"Approval","abstract":"To: RAN WG3. CC: SA WG5, RAN WG2. Attachments: S2-2003470 (CR 2293), S2-2002840 (CR 2206)","secretary_remarks":"Revision of S2-2002838, merging S2-2002953. Approved","agenda_item_sort_order":37,"ainumber":"7.10.1","ainame":"Enhancement of URLLC supporting in 5GC (5G_URLLC)","tdoc_agenda_sort_order":16500,"status":"approved","reservation_date":"2020-04-27 09:11:10","uploaded":"2020-04-28 06:57:52","revisionof":"S2-2002838","revisedto":"","release":"Rel-16","crspec":"","crspecversion":"","workitem":[{"winame":"5G_URLLC"}],"crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"S2-2002659","lsto":"RAN WG3","Cc":"SA WG5, RAN WG2","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_138e_Electronic\/Docs\/S2-2003468.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":"S2-2003469","title":"Update of QoS monitoring for URLLC based on RAN WG3 decision","source":"Intel","contact":"Saso Stojanovski","contact-id":24932,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: Updates clause 5.33.3.2 based on RAN WG3 decision in S2-2002659 \/ R3-201372.","secretary_remarks":"Revision of S2-2002680. Approved","agenda_item_sort_order":37,"ainumber":"7.10.1","ainame":"Enhancement of URLLC supporting in 5GC (5G_URLLC)","tdoc_agenda_sort_order":16560,"status":"agreed","reservation_date":"2020-04-27 09:11:10","uploaded":"2020-04-28 06:57:52","revisionof":"S2-2002680","revisedto":"","release":"Rel-16","crspec":23.501,"crspecversion":"16.4.0","workitem":[{"winame":"5G_URLLC"}],"crnumber":2222.0,"crrevision":1.0,"crcategory":"F","tsg_crp":"SP-200425","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_138e_Electronic\/Docs\/S2-2003469.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":"S2-2003470","title":"Correction of RAN part of packet delay for QoS monitoring","source":"Qualcomm Incorporated","contact":"Juan Zhang","contact-id":73274,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: - change the UL\/DL packet delay on Uu interface to RAN part of UL\/DL delay. - clarify that the RAN part of UL\/DL packet delay including delays of PDCP queuing, RLC, PDCP reordering, F1-U, Xn-U, Uu interfaces for NR which are defined in TS 38.314) - add TS 38.314 as new reference.","secretary_remarks":"Revision of S2-2002949, merging S2-2002839. Approved","agenda_item_sort_order":37,"ainumber":"7.10.1","ainame":"Enhancement of URLLC supporting in 5GC (5G_URLLC)","tdoc_agenda_sort_order":16580,"status":"agreed","reservation_date":"2020-04-27 09:11:11","uploaded":"2020-04-28 06:57:52","revisionof":"S2-2002949","revisedto":"","release":"Rel-16","crspec":23.501,"crspecversion":"16.4.0","workitem":[{"winame":"5G_URLLC"}],"crnumber":2293.0,"crrevision":1.0,"crcategory":"F","tsg_crp":"SP-200425","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_138e_Electronic\/Docs\/S2-2003470.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":"S2-2003471","title":"Clarification on the late notifcation for the target AF","source":"Samsung","contact":"Kisuk Kweon","contact-id":80126,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: It is clarified when a late notification is requested by the AF, if the target local DN is associated with another AF instance, the AF informs the SMF of the information of the target AF in order for the SMF to send notification to the target AF.","secretary_remarks":"Revision of S2-2003120. Approved","agenda_item_sort_order":37,"ainumber":"7.10.1","ainame":"Enhancement of URLLC supporting in 5GC (5G_URLLC)","tdoc_agenda_sort_order":16610,"status":"agreed","reservation_date":"2020-04-27 09:11:12","uploaded":"2020-04-28 06:57:52","revisionof":"S2-2003120","revisedto":"","release":"Rel-16","crspec":23.502,"crspecversion":"16.4.0","workitem":[{"winame":"5G_URLLC"}],"crnumber":2287.0,"crrevision":1.0,"crcategory":"F","tsg_crp":"SP-200425","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_138e_Electronic\/Docs\/S2-2003471.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}]