[{"name":"R5-192903","title":"LS on NR SDR definition","source":"TSG WG RAN4","contact":"Ingbert Sigovich","contact-id":28887,"tdoctype":"LS in","for":"Information","abstract":"Release:\tRelease 15\nWork Item:\tNR_newRAT\nRAN4 discussed the DL reference measurement channels (RMC) definition for the NR UE sustained data rate requirements and made the following observations:\n\u2022\tSDR tests require definition of a big amount of DL RMCs to cover different scenarios in terms of CBW, SCS, number of MIMO layers, MCS combinations, etc.\n\u2022\tSDR test parameters and set of tested CBW, SCS, number of MIMO layers, and MCS combinations completely characterize the typical parameter listed in DL RMCs including TBS per each slot, number of code bits, etc. The respective parameters can be derived based on RAN1 specifications.\nRAN4 does not plan to introduce tables with DL RMC for SDR requirements and will define only SDR test parameters and set of tested CBW, SCS, number of MIMO layers, and MCS combinations. Whether DL RMC for SDR requirements shall be introduced in RAN5 specifications is up to RAN5.\nRAN4 discussed whether to define a minimum duration of the SDR test (i.e. the minimum amount of subframes over which the TB success data rate shall be sustained) and observed that the respective parameter is related to the test uncertainty and is related to RAN5 scope. Therefore, RAN4 recommends RAN5 to define the SDR test duration and inform RAN4 if any additional inputs are needed.","secretary_remarks":"","agenda_item_sort_order":1,"ainumber":"2","ainame":"\tIncoming Liaison Statements","tdoc_agenda_sort_order":29030,"status":"noted","reservation_date":"2019-03-19 08:14:23","uploaded":"2019-03-19 08:16:24","revisionof":"","revisedto":"","release":"Rel-15","crspec":"","crspecversion":"","workitem":[{"winame":"NR_newRAT"}],"crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"R4-1902428","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/TSG_RAN\/WG5_Test_ex-T1\/TSGR5_AHs\/2019-04-08_5G-NR_Adhoc_5\/Docs\/R5-192903.zip","group":"R5","meeting":"R5-ah-35450","year":2019,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0}]