[{"name":"R5-193262","title":"Discussion on TT and the impact on UE fail rate for EIRP CDF","source":"Ericsson, Telecom Italia, Orange","contact":"Mikael Zir\u00e9n","contact-id":81237,"tdoctype":"discussion","for":"Endorsement","abstract":"At the RAN5#81 meeting it was agreed that for FR2 MOP test use TT=0.65*MU to achieve a 10% fail rate for a marginal UE [1].\nAt the RAN5#82 meeting the TT for EIRP CDF test was under discussion, but no agreement could be reached. Proposals were TT=0.65*MU [2] and TT=2 dB [3]. \nDuring the discussion it was argued that the impact on the UE fail rate with same TT as the EIRP test is less due to that EIRP CDF verdict is a combined one based on hundreds of individual measurements, but no formal input document was presented.\nThis paper provides justification why the UE fail rate can be lower in EIRP CDF test than in EIRP test, thereby allowing a lower TT than in the EIRP test without a negative effect on UE fail rate.\n3\tConclusion\nThe TT of 3.5 dB that gave 8% UE fail rate in EIRP test, gives significantly lower UE fail rate when considering multiple measurement points unless all measurement errors in the measurement grid are correlated (same error in all points). \nThe exact UE fail rate depends on the correlation between measurement error across grid points, but it will always be lower than in the EIRP test unless all measurement errors are 100% correlated. \nProposal\nProposal 1: Reduce TT to 2.0 dB (or TT=0.4*MU) for EIRP CDF test as this still gives a 0% UE fail rate if measurement errors are statistically independent. For the unrealistic worst case of 100% correlated measurements this mean 21% UE fail rate for a UE with zero margin to the core requirement.","secretary_remarks":"","agenda_item_sort_order":40,"ainumber":"4.1.16","ainame":"\tDiscussion Papers \/ Work Plan \/ TC lists","tdoc_agenda_sort_order":32620,"status":"revised","reservation_date":"2019-04-03 11:16:06","uploaded":"2019-04-03 14:48:26","revisionof":"","revisedto":"R5-193483","release":"Rel-15","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_AHs\/2019-04-08_5G-NR_Adhoc_5\/Docs\/R5-193262.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}]