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{"name":"R4-2600179","title":"Clarification on alignment of ECI frame and ECEF frame for NGSO satellite orbit","source":"Anritsu Corporation","contact":"Osamu Yamashita","contact-id":66204,"tdoctype":"discussion","for":"Approval","abstract":"Clarification of a relationship between the timing to align ECI\/ECEF frames during a test, ephemeris information and epoch time.","secretary_remarks":"","agenda_item_sort_order":210,"ainumber":"6.6.3.1","ainame":"Channel modeling","tdoc_agenda_sort_order":17900,"status":"noted","reservation_date":"2026-01-29 02:28:03","uploaded":"2026-01-30 04:39:37","revisionof":"","revisedto":"","release":"","crspec":"","crspecversion":"","workitem":[{"winame":"NR_IoT_NTN_req_test_enh-Perf"}],"crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"https:\/\/www.3gpp.org\/ftp\/tsg_ran\/WG4_Radio\/TSGR4_118\/Docs\/R4-2600179.zip","group":"R4","meeting":"R4-118","year":2026,"uicc_affected":"","me_affected":"","ran_affected":"","cn_affected":"","clauses_affected":"","crsinpack":null,"crsinpacknumber":0},
{"name":"R4-2601617","title":"Time-varying Doppler shift and propagation delay model for NGSO","source":"Ericsson","contact":"Kazuyoshi Uesaka","contact-id":46968,"tdoctype":"discussion","for":"Discussion","abstract":"This contribution discusses the remaining issues on the time-varying Doppler shift and propagation delay models for NTN.","secretary_remarks":"","agenda_item_sort_order":210,"ainumber":"6.6.3.1","ainame":"Channel modeling","tdoc_agenda_sort_order":161700,"status":"noted","reservation_date":"2026-01-30 11:51:45","uploaded":"2026-01-30 15:01:37","revisionof":"","revisedto":"","release":"Rel-19","crspec":"","crspecversion":"","workitem":[{"winame":"NR_IoT_NTN_req_test_enh-Perf"}],"crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"https:\/\/www.3gpp.org\/ftp\/tsg_ran\/WG4_Radio\/TSGR4_118\/Docs\/R4-2601617.zip","group":"R4","meeting":"R4-118","year":2026,"uicc_affected":"","me_affected":"","ran_affected":"","cn_affected":"","clauses_affected":"","crsinpack":null,"crsinpacknumber":0},
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