[{"name":"S2-1908721","title":"LS from SA WG4: LS on updates to CHEM feature and use of Application Layer Redundancy","source":"SA WG4","contact":"Nikolai Leung","contact-id":38562,"tdoctype":"LS in","for":"Action","abstract":"SA WG4 has completed the normative specification of the CHEM feature in the three agreed CRs to 3GPP TS 26.114 (attached). SA WG4 has also agreed a CR to update to TR 26.959 to align the TR with the normative decisions made in specifying the feature. Also attached is an endorsed Work Item Summary. During the completion of the CHEM feature some aspects have been changed compared to previous draft CRs and what was documented in TR 26.959 including: 1. To provide the network the option to disable the CHEM feature, the 'PLR_adapt' attribute was changed from a capability indication to a negotiated attribute. The attribute has to be present in the SDP answer to enable CHEM which can only be enabled bi-directionally, i.e., the feature no longer supports CHEM operation in only one direction of media transmission. 2. To support optional use of application layer redundancy to improve robustness for speech media, an optional 'ALR' parameter was specified for use with the 'PLR_adapt' attribute. Successful negotiation of this option allows the MTSI clients to send newly specified in-band RTP CMR codepoints to request that the speech sender use application layer redundancy. The above changes affect how a PCF\/PCRF uses the SDP attributes and parameters to determine appropriate PLR thresholds that are communicated to the eNB\/gNB. Action: SA WG4 asks SA WG2 and CT WG3 to take the above and attached into consideration and update your relevant specifications as deemed necessary.","secretary_remarks":"Noted in parallel session","agenda_item_sort_order":11,"ainumber":"5.4","ainame":"IMS and IMS-Related Maintenance","tdoc_agenda_sort_order":10750,"status":"noted","reservation_date":"2019-09-16 19:37:38","uploaded":"2019-09-16 21:37:54","revisionof":"","revisedto":"","release":"Rel-16","crspec":"","crspecversion":"","workitem":"","crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"","lsto":"SA WG2, CT WG3","Cc":"","lsoriginalls":"S4-191020","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_135_Split\/Docs\/S2-1908721.zip","group":"S2","meeting":"S2-135","year":2019,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-1908968","title":"Fixing incorrectly implemented 23.228 CR1193","source":"Intel","contact":"Saso Stojanovski","contact-id":24932,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: Introduces clause Z.3.3 ('Optional RLOS APN verification') as proposed in 23.228 CR1193 (SP-190163).","secretary_remarks":"Revised in parallel session to S2-1910113.","agenda_item_sort_order":11,"ainumber":"5.4","ainame":"IMS and IMS-Related Maintenance","tdoc_agenda_sort_order":10760,"status":"revised","reservation_date":"2019-09-30 11:20:42","uploaded":"2019-10-02 20:33:47","revisionof":"","revisedto":"S2-1910113","release":"Rel-16","crspec":"23.228","crspecversion":"16.2.0","workitem":[{"winame":"PARLOS"},{"winame":"TEI16"}],"crnumber":1222.0,"crrevision":"","crcategory":"F","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_135_Split\/Docs\/S2-1908968.zip","group":"S2","meeting":"S2-135","year":2019,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-1909559","title":"Aligning TS 23.203 with the CHEM feature of SA WG4","source":"Qualcomm Incorporated","contact":"Haris Zisimopoulos","contact-id":57197,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: Aligning TS 23.203 with the CHEM feature of SA WG4","secretary_remarks":"Revised in parallel session to S2-1910111.","agenda_item_sort_order":11,"ainumber":"5.4","ainame":"IMS and IMS-Related Maintenance","tdoc_agenda_sort_order":10780,"status":"revised","reservation_date":"2019-10-03 18:57:10","uploaded":"2019-10-04 20:36:43","revisionof":"","revisedto":"S2-1910111","release":"Rel-16","crspec":"23.203","crspecversion":"16.1.0","workitem":[{"winame":"TEI16"},{"winame":"CHEM"}],"crnumber":1130.0,"crrevision":"","crcategory":"F","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_135_Split\/Docs\/S2-1909559.zip","group":"S2","meeting":"S2-135","year":2019,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-1909560","title":"Aligning TS 23.503 with the CHEM feature of SA WG4","source":"Qualcomm Incorporated","contact":"Haris Zisimopoulos","contact-id":57197,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: Aligning TS 23.503 with the CHEM feature of SA WG4","secretary_remarks":"Revised in parallel session to S2-1910112.","agenda_item_sort_order":11,"ainumber":"5.4","ainame":"IMS and IMS-Related Maintenance","tdoc_agenda_sort_order":10800,"status":"revised","reservation_date":"2019-10-03 19:00:19","uploaded":"2019-10-04 20:36:43","revisionof":"","revisedto":"S2-1910112","release":"Rel-16","crspec":"23.503","crspecversion":"16.2.0","workitem":[{"winame":"TEI16"},{"winame":"CHEM"}],"crnumber":339.0,"crrevision":"","crcategory":"F","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_135_Split\/Docs\/S2-1909560.zip","group":"S2","meeting":"S2-135","year":2019,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-1909898","title":"Alignement on support of multiple EATF instances","source":"ORANGE","contact":"Antoine Mouquet","contact-id":38438,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: Removal of the Note in clause 4.2.4.1.","secretary_remarks":"Add clauses affected. Revised in parallel session to S2-1910114.","agenda_item_sort_order":11,"ainumber":"5.4","ainame":"IMS and IMS-Related Maintenance","tdoc_agenda_sort_order":10820,"status":"revised","reservation_date":"2019-10-04 18:31:31","uploaded":"2019-10-04 18:44:46","revisionof":"","revisedto":"S2-1910114","release":"Rel-16","crspec":"23.216","crspecversion":"16.2.0","workitem":[{"winame":"TEI16"}],"crnumber":362.0,"crrevision":"","crcategory":"F","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_135_Split\/Docs\/S2-1909898.zip","group":"S2","meeting":"S2-135","year":2019,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-1910111","title":"Aligning TS 23.203 with the CHEM feature of SA4","source":"Qualcomm Incorporated","contact":"Haris Zisimopoulos","contact-id":57197,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: Aligning TS 23.203 with the CHEM feature of SA WG4","secretary_remarks":"Revision of S2-1909559. Agreed in parallel session This was Block approved","agenda_item_sort_order":11,"ainumber":"5.4","ainame":"IMS and IMS-Related Maintenance","tdoc_agenda_sort_order":10790,"status":"agreed","reservation_date":"2019-10-15 16:23:12","uploaded":"2019-10-19 07:48:03","revisionof":"S2-1909559","revisedto":"","release":"Rel-16","crspec":"23.203","crspecversion":"16.1.0","workitem":[{"winame":"TEI16"},{"winame":"CHEM"}],"crnumber":1130.0,"crrevision":1.0,"crcategory":"F","tsg_crp":"SP-191089","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_135_Split\/Docs\/S2-1910111.zip","group":"S2","meeting":"S2-135","year":2019,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-1910112","title":"Aligning TS 23.503 with the CHEM feature of SA4","source":"Qualcomm Incorporated","contact":"Haris Zisimopoulos","contact-id":57197,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: Aligning TS 23.503 with the CHEM feature of SA WG4","secretary_remarks":"Revision of S2-1909560. Agreed in parallel session This was Block approved","agenda_item_sort_order":11,"ainumber":"5.4","ainame":"IMS and IMS-Related Maintenance","tdoc_agenda_sort_order":10810,"status":"agreed","reservation_date":"2019-10-15 16:23:14","uploaded":"2019-10-19 07:48:03","revisionof":"S2-1909560","revisedto":"","release":"Rel-16","crspec":"23.503","crspecversion":"16.2.0","workitem":[{"winame":"TEI16"},{"winame":"CHEM"}],"crnumber":339.0,"crrevision":1.0,"crcategory":"F","tsg_crp":"SP-191089","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_135_Split\/Docs\/S2-1910112.zip","group":"S2","meeting":"S2-135","year":2019,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-1910113","title":"Fixing incorrectly implemented 23.228 CR1193","source":"Intel, Nokia","contact":"Saso Stojanovski","contact-id":24932,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: Introduces clause Z.3.3 ('Optional RLOS APN verification') as proposed in 23.228 CR1193 (SP-190163).","secretary_remarks":"Revision of S2-1908968. Agreed in parallel session This was Block approved","agenda_item_sort_order":11,"ainumber":"5.4","ainame":"IMS and IMS-Related Maintenance","tdoc_agenda_sort_order":10770,"status":"agreed","reservation_date":"2019-10-15 16:23:15","uploaded":"2019-10-19 07:48:03","revisionof":"S2-1908968","revisedto":"","release":"Rel-16","crspec":"23.228","crspecversion":"16.2.0","workitem":[{"winame":"PARLOS"},{"winame":"TEI16"}],"crnumber":1222.0,"crrevision":1.0,"crcategory":"F","tsg_crp":"SP-191087","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_135_Split\/Docs\/S2-1910113.zip","group":"S2","meeting":"S2-135","year":2019,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"S2-1910114","title":"Alignement on support of multiple EATF instances","source":"ORANGE","contact":"Antoine Mouquet","contact-id":38438,"tdoctype":"CR","for":"Approval","abstract":"Summary of change: Removal of the Note in clause 4.2.4.1.","secretary_remarks":"Revision of S2-1909898. Agreed in parallel session This was Block approved","agenda_item_sort_order":11,"ainumber":"5.4","ainame":"IMS and IMS-Related Maintenance","tdoc_agenda_sort_order":10830,"status":"agreed","reservation_date":"2019-10-15 16:23:16","uploaded":"2019-10-19 07:48:03","revisionof":"S2-1909898","revisedto":"","release":"Rel-16","crspec":"23.216","crspecversion":"16.2.0","workitem":[{"winame":"TEI16"}],"crnumber":362.0,"crrevision":1.0,"crcategory":"F","tsg_crp":"SP-191089","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/tsg_sa\/WG2_Arch\/TSGS2_135_Split\/Docs\/S2-1910114.zip","group":"S2","meeting":"S2-135","year":2019,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0}]