[{"name":"R5-202455","title":"Discussion on the power level for transmit modulation quality test cases","source":"ROHDE & SCHWARZ","contact":"Edwin Menzel","contact-id":65839,"tdoctype":"discussion","for":"Endorsement","abstract":"In this contribution, we discuss our preliminary analysis of the measurement uncertainty of the transmit modulation quality test cases applicable for SA and NSA operation mode with respect to the UE transmit power level.\nIn this contribution we have presented a preliminary analysis of the measurement uncertainty of Tx modulation quality test cases. Due to the low SNR conditions and the low PSD nature of these test cases we propose to limit testing of FR2 Tx modulation quality test cases to UE maximum output power level.\nObservation 1: The low SNR results in EVM values exceeding the core requirement unacceptably. This is especially severe for power classes 2, 3 and 4. \nObservation 2: Due to the high MPR for large channel bandwidths and allocation, there exists a low PSD issue for EVM even when tested at UE PUMAX. Consequently, it is not reasonable to test EVM at lower power levels than PUMAX.\nProposal 1: Test FR2 EVM only at PUMAX level and remove the test steps associated with lower power levels from the test case.\nObservation 3: PC3 CP-OFDM 64QAM with 400 MHz channel bandwidth is not testable without relaxation.\nProposal 2: In addition to testing only at UE maximum output power, reconsider the test point selection to optimize MPR and single channel noise by choosing appropriate channel bandwidths and allocations. \nProposal 3: Test FR2 Carrier Leakage only at the upper power level (=0 dBm for PC3) and remove step 7 to 9 from the test procedure. \nObservation 4: The requirement for non-allocated RBs cannot be tested without relaxation.\nProposal 4: Omit testing of Power ID 3 in the FR2 In-band emission test case and consider relaxation or not testing of the requirement for non-allocated RBs .\nProposal 5: Apply the other proposals to the CA test cases as well.","secretary_remarks":"","agenda_item_sort_order":89,"ainumber":"5.3.2.17","ainame":"\tDiscussion Papers \/ Work Plan \/ TC lists","tdoc_agenda_sort_order":24550,"status":"revised","reservation_date":"2020-05-08 20:26:21","uploaded":"2020-05-09 08:59:07","revisionof":"","revisedto":"R5-202852","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\/R5-202455.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}]