[{"name":"R5-202315","title":"FR2 SNR Uncertainty","source":"Anritsu","contact":"Hiroyuki Baba","contact-id":65585,"tdoctype":"discussion","for":"Endorsement","abstract":"In [1], the table format for the uncertainty budget table for Performance test is endorsed. In this paper we present our view on the SNR uncertainty for both FR2 RRM and Performance tests.\nFollowing observations are made.\nObservation 1 : MU of RRM\/PERF test case with SNR as test parameter consists of\nA.\tSNR uncertainty : Reference point is centre of QZ(in the space)\nB.\tOther uncertainty factors which affect the measurement result\nObservation 2 : In general, non-ideal TxEVM affect the SNR uncertainty but its effective uncertainty is 0 in conformance test due to the fact certain TxEVM is already built in the test requirement and TE needs to meet it.\nObservation 3 : With the condition that TxEVM requirement is met by TE, all the MU elements associated with parts after that combining point will be 0 or N\/A.\nObservation 4 :  H-V isolation, multi-path effect inside a chamber etc\u2026 can be considered separately from SNR uncertainty.\nObservation 5 : For external combining approach, SNR uncertainty and budget table will be much different depends on how the carrier and AWGN are combined, and how the SNR is calibrated.\nRAN5 is asked to endorse following proposals.\nProposal 1: For baseband combining approach,   make all the stage 1 MU elements not applicable for SNR uncertainty\nProposal 2:  For baseband combining approach and for up to 64QAM, set Stage 2 MU elements not applicable except for \u201cgNB emulator SNR uncertainty\u201d\nProposal 3 : For baseband-combining approach and for up to DL 64QAM, apply +\/- 0.3dB(1.96sigma)  for FR2a and FR2b for up to 400MHz BW for\u201d gNB emulator SNR uncertainty\u201d\nProposal 4 : Define MTSU of FR2 RRM and PERF with baseband combining approach.","secretary_remarks":"","agenda_item_sort_order":89,"ainumber":"5.3.2.17","ainame":"\tDiscussion Papers \/ Work Plan \/ TC lists","tdoc_agenda_sort_order":23150,"status":"revised","reservation_date":"2020-05-08 12:41:59","uploaded":"2020-05-08 18:02:11","revisionof":"","revisedto":"R5-202922","release":"","crspec":"","crspecversion":"","workitem":[{"winame":"5GS_NR_LTE-UEConTest"}],"crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"http:\/\/www.3gpp.org\/ftp\/TSG_RAN\/WG5_Test_ex-T1\/TSGR5_87_Electronic\/Docs\/R5-202315.zip","group":"R5","meeting":"R5-ah-38102","year":2020,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0}]