[{"name":"S2-2002618","title":"LS from SA WG4: Reply LS on Support for ECN in 5GS","source":"SA WG4","contact":"Nikolai Leung","contact-id":38562,"tdoctype":"LS in","for":"Action","abstract":"SA WG4 thanks SA WG2 for the LS and provides answers to the following questions in the LS: SA WG2 would like to ask SA WG4 whether there is an expectation for support of ECN when UE's MTSI client is operating over 5GS, and whether mobility between EPS and 5GS raises any issues related to ECN handling in scenarios where ECN is supported and used over EPS, but is not supported or used over 5GS. The support of ECN in MTSI terminals is optional ('may') in TS 26.114 and is specified based on the access bearer technology known to the MTSI client, and not on the type of the core network. For the NR access bearer technology, ECN support is not as fully specified as for E-UTRAN or UTRA\/HSPA. During the Rel-15 and Rel-16 work to specify support for MTSI operation over NR and E-UTRAN, TS 26.114 was updated to recommend (from 'may' to 'should') the use of RAN-Assisted Codec Rate Adaptation (i.e., access network bitrate recommendation\/ANBR in TS 26.114). This was seen as a more robust solution when the main cause of congestion comes from the radio access bearers and SA WG4 recommends the use of ANBR for MTSI moving forward for NR and E-UTRAN in Release 16 and beyond. If an MTSI terminal using ECN for media rate adaption hands-off between an eNB that supports ECN to a gNB that does not, then the MTSI terminal will not receive early congestion indications from the gNB. This may cause the MTSI terminal to have to rely on packet jitter, delays, or even loss, to make necessary rate adaptations if the MTSI terminal, gNB or both does not support RAN-Assisted Codec Adaptation. SA WG2 would like to ask SA WG4 whether there is any other use of ECN beyond bitrate adaptation for MTSI. As of this time, SA WG4 has not studied the use of ECN for any other purposes. Action: SA WG4 asks SA WG2 to take the above responses into consideration.","secretary_remarks":"Postponed S2-2001789 from S2#137E. Noted","agenda_item_sort_order":16,"ainumber":"6.5","ainame":"QoS concept and functionality","tdoc_agenda_sort_order":11080,"status":"noted","reservation_date":"2020-03-26 10:57:37","uploaded":"2020-03-27 13:44:13","revisionof":"S2-2001789","revisedto":"","release":"","crspec":"","crspecversion":"","workitem":"","crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"","lsto":"SA WG2","Cc":"RAN WG2, RAN WG3, CT WG1","lsoriginalls":"S4-200298","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_138e_Electronic\/Docs\/S2-2002618.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":"S2-2002653","title":"LS from CT WG4: Reply LS on proposed reflective QoS update","source":"CT WG4","contact":"Maurice Pope","contact-id":648,"tdoctype":"LS in","for":"Action","abstract":"CT WG4 thanks SA WG2 for the LS on proposed reflective QoS update (S2-1912766 \/ C4-200080). CT WG4 agrees with the SMF being responsible for removing the UL PDR for the uplink traffic of the SDF when Reflective QoS is disabled for the SDF, if the SMF has provisioned the UPF with an UL PDR to perform uplink QoS flow binding verification for the SDF when Reflective QoS was enabled. PFCP supports means to support the above behaviour from Rel-15 onwards. CT WG4 has agreed the attached CR0376, which clarifies the procedure in 3GPP TS 29.244. Action: CT WG4 asks SA WG2 to kindly take the above feedback into account.","secretary_remarks":"Noted","agenda_item_sort_order":16,"ainumber":"6.5","ainame":"QoS concept and functionality","tdoc_agenda_sort_order":11090,"status":"noted","reservation_date":"2020-03-26 10:57:38","uploaded":"2020-03-27 15:57:56","revisionof":"","revisedto":"","release":"Rel-15","crspec":"","crspecversion":"","workitem":"","crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"","lsto":"SA WG2","Cc":"","lsoriginalls":"C4-201222","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_138e_Electronic\/Docs\/S2-2002653.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":"S2-2002749","title":"New QoS parameter Additional QoS Flow Information","source":"Huawei, HiSilicon","contact":"Marco Spini","contact-id":8356,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: The QoS parameter Additional QoS Flow Information is added.","secretary_remarks":"Revision of (noted) S2-2002121 from S2#137E. Postponed","agenda_item_sort_order":16,"ainumber":"6.5","ainame":"QoS concept and functionality","tdoc_agenda_sort_order":11100,"status":"postponed","reservation_date":"2020-04-08 15:48:30","uploaded":"2020-04-10 11:40:19","revisionof":"S2-2002121","revisedto":"","release":"Rel-16","crspec":23.501,"crspecversion":"16.4.0","workitem":[{"winame":"TEI16"},{"winame":"5GS_Ph1"}],"crnumber":2058.0,"crrevision":2.0,"crcategory":"F","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_138e_Electronic\/Docs\/S2-2002749.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":"S2-2002750","title":"Reflective QoS","source":"Huawei, HiSilicon","contact":"Marco Spini","contact-id":8356,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: It is clarified how the SMF generates the UL PDR for the QoS authorization of the UL traffic of the SDF and how the SMF removes the UL PDR for the UL traffic of the SDF after an operator configurable time.","secretary_remarks":"Postponed. Revised at S2#139E in S2-2003864","agenda_item_sort_order":16,"ainumber":"6.5","ainame":"QoS concept and functionality","tdoc_agenda_sort_order":11110,"status":"revised","reservation_date":"2020-04-08 15:48:43","uploaded":"2020-04-10 11:40:19","revisionof":"","revisedto":"S2-2003864","release":"Rel-15","crspec":23.501,"crspecversion":"15.9.0","workitem":[{"winame":"5GS_Ph1"}],"crnumber":2237.0,"crrevision":"","crcategory":"F","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_138e_Electronic\/Docs\/S2-2002750.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":"S2-2002751","title":"Reflective QoS","source":"Huawei, HiSilicon","contact":"Marco Spini","contact-id":8356,"tdoctype":"CR","for":"Approval","abstract":"Rel-16 mirror CR: Summary of change: It is clarified how the SMF generates the UL PDR for the QoS authorization of the UL traffic of the SDF and how the SMF removes the UL PDR for the UL traffic of the SDF after an operator configurable time.","secretary_remarks":"Revision of (noted) S2-1912053 from S2#136. Postponed. Revised at S2#139E in S2-2003865","agenda_item_sort_order":16,"ainumber":"6.5","ainame":"QoS concept and functionality","tdoc_agenda_sort_order":11120,"status":"revised","reservation_date":"2020-04-08 15:48:44","uploaded":"2020-04-10 11:40:19","revisionof":"S2-1912053","revisedto":"S2-2003865","release":"Rel-16","crspec":23.501,"crspecversion":"16.4.0","workitem":[{"winame":"5GS_Ph1"}],"crnumber":1732.0,"crrevision":3.0,"crcategory":"A","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_138e_Electronic\/Docs\/S2-2002751.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":"S2-2002755","title":"ARP values for additional QoS Flows","source":"Ericsson","contact":"Shabnam Sultana","contact-id":21207,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: Correct the description so that when dynamic PCC is not deployed, the SMF sets ARP Priority Level also based on local configuration for QoS Flow(s) other than the one associated with the default QoS rule.","secretary_remarks":"e-meeting r02 agreed. Revised to S2-2003297.","agenda_item_sort_order":16,"ainumber":"6.5","ainame":"QoS concept and functionality","tdoc_agenda_sort_order":11130,"status":"revised","reservation_date":"2020-04-08 20:10:02","uploaded":"2020-04-10 19:30:54","revisionof":"","revisedto":"S2-2003297","release":"Rel-16","crspec":23.501,"crspecversion":"16.4.0","workitem":[{"winame":"5GS_Ph1"},{"winame":"TEI16"}],"crnumber":2238.0,"crrevision":"","crcategory":"F","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_138e_Electronic\/Docs\/S2-2002755.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":"S2-2002980","title":"Incorrect NOTE 14 for 5QI 3","source":"ZTE","contact":"Jinguo Zhu","contact-id":32987,"tdoctype":"CR","for":"Approval","abstract":"Rel-16 mirror CR: Summary of change: Remove NOTE14 for 5QI 3.","secretary_remarks":"e-meeting r04 agreed. Revised to S2-2003298.","agenda_item_sort_order":16,"ainumber":"6.5","ainame":"QoS concept and functionality","tdoc_agenda_sort_order":11150,"status":"revised","reservation_date":"2020-04-10 08:29:58","uploaded":"2020-04-10 09:03:32","revisionof":"","revisedto":"S2-2003298","release":"Rel-16","crspec":23.501,"crspecversion":"16.4.0","workitem":[{"winame":"5GS_Ph1"}],"crnumber":2299.0,"crrevision":"","crcategory":"A","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_138e_Electronic\/Docs\/S2-2002980.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":"S2-2002981","title":"Incorrect NOTE 14 for 5QI 3","source":"ZTE","contact":"Jinguo Zhu","contact-id":32987,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: Remove NOTE14 for 5QI 3.","secretary_remarks":"Approved","agenda_item_sort_order":16,"ainumber":"6.5","ainame":"QoS concept and functionality","tdoc_agenda_sort_order":11170,"status":"agreed","reservation_date":"2020-04-10 08:29:59","uploaded":"2020-04-10 09:03:32","revisionof":"","revisedto":"","release":"Rel-15","crspec":23.501,"crspecversion":"15.9.0","workitem":[{"winame":"5GS_Ph1"}],"crnumber":2300.0,"crrevision":"","crcategory":"F","tsg_crp":"SP-200420","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_138e_Electronic\/Docs\/S2-2002981.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":"S2-2003098","title":"Correction on QoS handling for priority sessions","source":"Samsung","contact":"Sangsoo Jeong","contact-id":81802,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: Clause 5.22.4 is corrected to specify the proper reference to the operation for multimedia priority and mission critical sessions (i.e., clause 5.16.5 and 5.16.6), respectively.","secretary_remarks":"Approved","agenda_item_sort_order":16,"ainumber":"6.5","ainame":"QoS concept and functionality","tdoc_agenda_sort_order":11180,"status":"agreed","reservation_date":"2020-04-10 11:50:44","uploaded":"2020-04-10 12:19:23","revisionof":"","revisedto":"","release":"Rel-16","crspec":23.501,"crspecversion":"16.4.0","workitem":[{"winame":"5GS_Ph1"},{"winame":"TEI16"}],"crnumber":2341.0,"crrevision":"","crcategory":"F","tsg_crp":"SP-200551","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_138e_Electronic\/Docs\/S2-2003098.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":"S2-2003297","title":"ARP values for additional QoS Flows","source":"Ericsson","contact":"Shabnam Sultana","contact-id":21207,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: Correct the description so that when dynamic PCC is not deployed, the SMF sets ARP Priority Level also based on local configuration for QoS Flow(s) other than the one associated with the default QoS rule.","secretary_remarks":"Revision of S2-2002755. Approved","agenda_item_sort_order":16,"ainumber":"6.5","ainame":"QoS concept and functionality","tdoc_agenda_sort_order":11140,"status":"agreed","reservation_date":"2020-04-27 09:08:41","uploaded":"2020-04-28 06:57:52","revisionof":"S2-2002755","revisedto":"","release":"Rel-16","crspec":23.501,"crspecversion":"16.4.0","workitem":[{"winame":"5GS_Ph1"},{"winame":"TEI16"}],"crnumber":2238.0,"crrevision":1.0,"crcategory":"F","tsg_crp":"SP-200552","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_138e_Electronic\/Docs\/S2-2003297.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":"S2-2003298","title":"Incorrect NOTE 14 for 5QI 3","source":"ZTE, LG Electronics, Huawei, HiSilicon","contact":"Jinguo Zhu","contact-id":32987,"tdoctype":"CR","for":"Approval","abstract":"Rel-16 mirror CR: Summary of change: In table 5.7.4-1, removed NOTE14 for 5QI 3. Added reference to TS 23.287 to clause 2 and in table 5.7.4-1.","secretary_remarks":"Revision of S2-2002980. Approved","agenda_item_sort_order":16,"ainumber":"6.5","ainame":"QoS concept and functionality","tdoc_agenda_sort_order":11160,"status":"agreed","reservation_date":"2020-04-27 09:08:42","uploaded":"2020-04-28 06:57:52","revisionof":"S2-2002980","revisedto":"","release":"Rel-16","crspec":23.501,"crspecversion":"16.4.0","workitem":[{"winame":"5GS_Ph1"}],"crnumber":2299.0,"crrevision":1.0,"crcategory":"A","tsg_crp":"SP-200420","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_138e_Electronic\/Docs\/S2-2003298.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}]