[{"name":"R4-2016446","title":"Revised V2X FRC tables","source":"Qualcomm Incorporated","contact":"Chan Fernando","contact-id":84047,"tdoctype":"CR","for":"Agreement","abstract":"Current FRC tables in 38.101-1 sets PSCCH PRBs=10 for all allocated resource block lengths. This leads to cases where the PSCCH is smaller than a sub-channel for sub-channel sizes 12 and 15.\nAccording to RAN1 when the sub-channel size is <20 PRBs and the size of the PSCCH is less than the sub-channel size, a UE is not expected to choose a PSSCH DMRS pattern to be transmitted in the same OFDM symbol with PSCCH.\nSuch a configurations limits the ability of the UE to use anything except the 2-symbol DMRS pattern with sub-channel sizes of 12 and 15 PRBs, placing signficiant restrictions on the overall system and could lead to performance degradation in moderate and high Doppler scenarios. Therefore, it is best to avoid using such a configuration.\nThis CR proposes a FRC configuration where the number of PSCCH PRBs is set equal to the subchannel size for sub-channel sizes <20. This allows PSSCH DMRS to be transmitted in the same OFDM symbol with PSSCH.\nThis permits more DMRS symbols per slot which will gives better performance in moderate and high doppler scenarios.\nAdditionally, some parameters that are required to calculate the TBS and decode the TB are missing. This CR introduces those parameters.","secretary_remarks":"[97e][108] 5G_V2X_NRSL_UE_RF","agenda_item_sort_order":140,"ainumber":"7.3.3.2","ainame":"Receiver characteristics [5G_V2X_NRSL-Core]","tdoc_agenda_sort_order":8720,"status":"not pursued","reservation_date":"2020-10-23 20:11:22","uploaded":"2020-10-23 23:29:31","revisionof":"","revisedto":"","release":"Rel-16","crspec":"38.101-1","crspecversion":"16.5.0","workitem":[{"winame":"5G_V2X_NRSL-Core"}],"crnumber":560.0,"crrevision":"","crcategory":"F","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"https:\/\/www.3gpp.org\/ftp\/TSG_RAN\/WG4_Radio\/TSGR4_97_e\/Docs\/R4-2016446.zip","group":"R4","meeting":"R4-97-e","year":2020,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0}]