[{"name":"R5-256071","title":"Disc on handling XR PDCP discard TCs","source":"CMCC","contact":"Dan Song","contact-id":86282,"tdoctype":"discussion","for":"Endorsement","abstract":"The related CRs are R5-256072, R5-256073, R5-256074, R5-256075, R5-256076, R5-256077, R5-256078, R5-256079_x000D_\n_x000D_\nFor XR PDCP discard TCs, PDU Set marking information is in RTP header extension (application layer packet) as per TS26.522, e.g. PDU Set Importance (PSI), PDU Set Sequence Number (PSSN) and PDU Sequence Number within a PDU Set (PSN). _x000D_\nProposal 1:  It is proposed to introduce a new test loop mode for application-layer packets (e.g.  RTP ) and to agree the related TS 38.509 CR R5-256079 (CR number 0090) and also the TS 36.509 CR._x000D_\nProposal 2: PDCP discard TCs are only related to XR UL awareness rather than DL awareness. SS needs to construct an RTP packet within header extension and map it to a PDCP PDU for test. Besides, SS also needs to set up some related configurations and timers case by case._x000D_\nProposal 3: It is proposed to define specific configurations for UDP header, IP header._x000D_\nProposal 4: RTP header is also needed to be defined with specific configurations._x000D_\nProposal 5: It is proposed to use one-byte RTP header extension for PDU Set Marking in XR PDCP discard TCs._x000D_\nProposal 6: It is proposed to construct number of \u201cX\u201d RTP packets with header extension and within number of \u201cX\u201d consecutive PSSN for PDCP discard TCs. Number of \u201cX\u201d RTP packets will be mapped to number of \u201cX\u201d PDCP PDU packets with number of \u201cX\u201d consecutive PDCP SN. The value of \u201cX\u201d could be specified case by case._x000D_\n Proposal 7:  It is proposed to endorse the test procedures in Slide 6 and 7 as test procedures of PDCP discard TCs  and also to agree TS 38.523-1 TC CRs R5-256073, R5-256074 and R5-256075.","secretary_remarks":"","agenda_item_sort_order":851,"ainumber":"6.3.9.7","ainame":"Discussion Papers, Work Plan, TC lists","tdoc_agenda_sort_order":607100,"status":"revised","reservation_date":"2025-07-11 02:59:32","uploaded":"2025-11-07 11:29:32","revisionof":"","revisedto":"R5-256658","release":"","crspec":"","crspecversion":"","workitem":[{"winame":"NR_XR_enh_plus_CT1-UEConTest"}],"crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"https:\/\/www.3gpp.org\/ftp\/tsg_ran\/WG5_Test_ex-T1\/TSGR5__109_Dallas\/Docs\/R5-256071.zip","group":"R5","meeting":"R5-109","year":2025,"uicc_affected":"","me_affected":"","ran_affected":"","cn_affected":"","clauses_affected":"","crsinpack":null,"crsinpacknumber":0},
{"name":"R5-256658","title":"Disc on handling XR PDCP discard TCs","source":"CMCC","contact":"Ingbert Sigovich","contact-id":28887,"tdoctype":"discussion","for":"Endorsement","abstract":"","secretary_remarks":"","agenda_item_sort_order":851,"ainumber":"6.3.9.7","ainame":"Discussion Papers, Work Plan, TC lists","tdoc_agenda_sort_order":607101,"status":"noted","reservation_date":"2025-01-12 13:39:32","uploaded":"2025-12-01 13:41:12","revisionof":"R5-256071","revisedto":"","release":"","crspec":"","crspecversion":"","workitem":[{"winame":"NR_XR_enh_plus_CT1-UEConTest"}],"crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"https:\/\/www.3gpp.org\/ftp\/tsg_ran\/WG5_Test_ex-T1\/TSGR5__109_Dallas\/Docs\/R5-256658.zip","group":"R5","meeting":"R5-109","year":2025,"uicc_affected":"","me_affected":"","ran_affected":"","cn_affected":"","clauses_affected":"","crsinpack":null,"crsinpacknumber":0}]