[{"name":"R5-212016","title":"Reply LS to RAN4 on the capability of transparent TxD","source":"TSG WG RAN2","contact":"Ingbert Sigovich","contact-id":28887,"tdoctype":"LS in","for":"Information","abstract":"Response to:\tR2-2102646 (R4-2103360)\nRelease:\tRel-16\nWork Item:\tTEI16\nRAN2 thanks RAN4 for the LS on signalling scheme of transparent TxD. \nRegarding the new per-band capability signaling in Rel-16 for FR1 UEs supporting transparent TxD, RAN2 can add the corresponding capability in corresponding specification (TS 38.331 and TS 38.306).\nRAN2 has discussed whether to enable release-independent support of this new capability from Rel-15, and the following agreements have been achieved:\n-\tRAN2 can support release independent capability of transparent TxD for Rel-15, by allowing early implementation of the Rel-16 CRs.\n-\tIt is possible to only apply the change for this new capability for PC2 UEs for Rel-15, but RAN2 would like to understand whether the Rel-16 capability signalling applies for all PCs, while Rel-15 capability signalling applies for just PC2 (as this difference in Rel-15 and Rel-16 capability might impact the signalling design)?\n-\tRAN2 would also like to confirm whether this new capability has any dependencies with other capabilities that should be captured by RAN2 (since the capability is intended as release independent, RAN2 may need to capture such pre-requisites explicitly).\nActions: To RAN WG4: RAN2 request RAN4 to take the above information into account during the following work, and provide feedback, if any.","secretary_remarks":"","agenda_item_sort_order":39,"ainumber":"5.2","ainame":"\tReview incoming LS (fm A.I. 3) & new subject discussion papers","tdoc_agenda_sort_order":201600,"status":"noted","reservation_date":"2021-04-20 09:12:22","uploaded":"2021-04-28 16:29:46","revisionof":"","revisedto":"","release":"Rel-16","crspec":"","crspecversion":"","workitem":[{"winame":"TEI16"}],"crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"R2-2102646 \/ R4-2103360","lsto":"TSG WG RAN2","Cc":"","lsoriginalls":"R2-2104353","lsreply":"","link":"https:\/\/www.3gpp.org\/ftp\/TSG_RAN\/WG5_Test_ex-T1\/TSGR5_91_Electronic\/Docs\/R5-212016.zip","group":"R5","meeting":"R5-91-e","year":2021,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"R5-212017","title":"LS on antenna assumption and measurement grids for FR2 PC3 UE","source":"TSG WG RAN4","contact":"Ingbert Sigovich","contact-id":28887,"tdoctype":"LS in","for":"Information","abstract":"Release:\tRel-17\nWork Item:\tFS_FR2_enhTestMethods\nThe antenna assumption of UE is important to define corresponding measurement grids which has great impacts on FR2 conformance testing time. In the FR2 test method enhancement SI, RAN4 has studied some approaches to reduce the test time [1]. New measurement grids based on reasonable antenna assumption of FR2 PC3 UE is one of the basic approaches to reduce the measurement time.\nRAN4 has agreed the new antenna assumption [2]:\n-\tFor PC3 UE, antenna assumption of 4x2 array is agreed.\n-\tKeeping the same upper bound of measurement grid MU, the new measurement grids based on 4x2 antenna array for spherical coverage, TRP and Tx\/Rx beam peak search measurement, need be defined.\n-\tThe new measurement grids can be adopted for FR2 RF conformance test case as an additional option. \n-\tThe selection of the new measurement grid with 4x2 array is based on optional vendor declaration.\n-\tTo reduce the impacts on RAN5 test spec, the system-related assumptions are kept unchanged in RAN5, i.e., based on the previously agreed worst case 8x2 assumptions.\n-\tAn example of Min Number of Grid Points for TX\/RX Beam Peak Search (366 for constant-step type, 275 for constant density type) is presented in the following table, which shows ~3 times improvement.\n[..]\nRAN4 is also working on the spherical coverage and TRP measurement grid based on 4x2 antenna assumption. The new measurement grids based on 4x2 array can be used for both NTC and ETC.\nSince RAN5 has finalized maximum test system uncertainties (MTSUs) and test tolerances (TTs) for many test cases already, it is not suggested to change the baseline antenna array assumptions at this point as this will have significant impact in RAN5 and industry since changes in MU\/MTSU could have impact on certifications and test platform validations. It is furthermore proposed for RAN5 to keep all system-related assumptions, e.g., related to max antenna aperture of D=5cm for PC3, based on the 8x2 antenna array assumptions.\nGiven the improvement in test time, it is suggested for RAN5 to support a relaxation of measurement grid requirements for the beam peak searches, TRP, and spherical coverage based on an optional vendor declaration.\nCurrently, RAN4 is also working on other approaches to reduce FR2 test time.\nActions: To RAN5: RAN4 asks RAN5 to take the above information into consideration to support test time reduction efforts with antenna assumption of 4x2 array and new measurement grid.","secretary_remarks":"","agenda_item_sort_order":39,"ainumber":"5.2","ainame":"\tReview incoming LS (fm A.I. 3) & new subject discussion papers","tdoc_agenda_sort_order":201700,"status":"noted","reservation_date":"2021-04-20 09:12:22","uploaded":"2021-05-03 16:05:11","revisionof":"","revisedto":"","release":"Rel-17","crspec":"","crspecversion":"","workitem":[{"winame":"FS_FR2_enhTestMethods"}],"crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"R4-2106128","lsreply":"","link":"https:\/\/www.3gpp.org\/ftp\/TSG_RAN\/WG5_Test_ex-T1\/TSGR5_91_Electronic\/Docs\/R5-212017.zip","group":"R5","meeting":"R5-91-e","year":2021,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"R5-212018","title":"LS on band-dependent parameters for the FR2 demodulation setup","source":"TSG WG RAN4","contact":"Ingbert Sigovich","contact-id":28887,"tdoctype":"LS in","for":"Action","abstract":"Release:\tRel-17\nWork Item:\tFR2_enhTestMethods\nOne of the objectives of the study on enhanced test methods for FR2 NR UEs is to extend the applicability of the permitted test methods in TR38.810 to the newly-introduced band n262. This liaison focuses on the extension of the applicability of the demodulation setup to band n262.\nAnnex B.3 in TR38.810 describes the detailed calculations of the maximum achievable SNR by the demodulation test setup. Although range length for the DFF setup is not a requirement for permitted methods, a reference value of 0.725m is used in the TR38.810 calculations. Furthermore, the maximum achievable SNR values are calculated assuming the highest band n259 frequency (f=43.5 GHz). The highest frequency considered for the SNR calculation for band n262 is f=48.2 GHz. RAN4 determined that the relative increase in free space path loss from 43.5 GHz to 48.2 GHz is 0.9 dB.\nAnother parameter in the SNR calculation which scales with frequency is cable loss per meter. Using the datasheets from five different commercially available RF cables, which are rated up to 50 GHz, RAN4 determined that the relative increase in cable loss per meter from 43.5 GHz to 48.2 GHz is 0.33 dB.\nThe SNR calculation related to cable loss also includes connector losses and additional margin. Feedback from RAN5 can be helpful to determine whether it is reasonable to reuse these parameters for the calculations related to band n262.\nThe SNR calculation also includes two parameters which are taken from UE RF requirements: REFSENS and multi-band relaxation. RAN4 recently agreed the value for REFSENS in band n262 of -82.8 dBm\/50 MHz, and 0.7 dB for MBR (the SNR calculations use a value of 1.0 dB, rounded up from 0.7). Table 1 below summarizes the proposed parameters.\n[..]\nRAN4 respectfully requests RAN5 to share feedback on the band-dependent parameters for the FR2 demodulation setup, as summarized in the Actions section below.\nActions: To RAN5: \nQuestion 1: Can RAN5 share any comments regarding the preliminary assessment of the demodulation test setup SNR calculation parameters in Table 1?\nQuestion 2: Can RAN5 share any updates related to FR2b, so that these can be applied to the SNR calculations for n262?","secretary_remarks":"","agenda_item_sort_order":39,"ainumber":"5.2","ainame":"\tReview incoming LS (fm A.I. 3) & new subject discussion papers","tdoc_agenda_sort_order":201800,"status":"noted","reservation_date":"2021-04-20 09:12:22","uploaded":"2021-05-03 16:05:11","revisionof":"","revisedto":"","release":"Rel-17","crspec":"","crspecversion":"","workitem":[{"winame":"FS_FR2_enhTestMethods"}],"crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"R4-2106162","lsreply":"","link":"https:\/\/www.3gpp.org\/ftp\/TSG_RAN\/WG5_Test_ex-T1\/TSGR5_91_Electronic\/Docs\/R5-212018.zip","group":"R5","meeting":"R5-91-e","year":2021,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"R5-212019","title":"Definition of an OTA Testing Method for 5G FR1","source":"GSMA TSG AP","contact":"Ingbert Sigovich","contact-id":28887,"tdoctype":"LS in","for":"Information","abstract":"1\tBackground\nThe GSMA TSG Antenna performance (TSG-AP) work item (WI) investigates and researches issues around the measurement of mobile device Antenna Performance using 3GPP and CTIA methods.\nWe have defined minimum acceptance criteria for 2G\/3G and LTE bands, these are recorded in GSMA PRD TS.24 document. These values are offered to the industry as recommended acceptance limits. The test methods used were from either 3GPP or CTIA.\nGSMA TSG-AP is now looking at defining acceptance values for 5G standard uplink (TRP) and downlink (TRS), as we did for the 2G, 3G & 4G standards.\nIn order to be able to complete this work, we need a harmonized OTA test method for the frequency range FR1.\n2\tRequest to 3GPP\nCan you define an OTA test method for 5G NR for frequency range FR1 please?\nFollowing use scenarios are required:\n-\tTalk mode using head & hand phantom for narrow devices between 56 mm and 72 mm and for wide devices with a width >72 mm.\n-\tBrowsing mode using hand phantom for narrow and wide phones\n-\tFree Space for devices not used in talk or browsing mode\nIf 3GPP has already started a WI on this, can you provide details of the scope of the work and your estimated schedule for completion.\nIt would be appreciated if the following items could be included in the 3GPP work:\n-\tMeasure TRP for both LTE and NR with a 50%-50% equal power sharing between LTE and NR (simultaneous or one by one)\n3\tTechnical Questions\n-\tWill Dynamic Power Sharing (DPS) be used for the 3GPP OTA testing and will there be a special test method for that?\nWill self-interference be considered for TRS testing?","secretary_remarks":"","agenda_item_sort_order":39,"ainumber":"5.2","ainame":"\tReview incoming LS (fm A.I. 3) & new subject discussion papers","tdoc_agenda_sort_order":201900,"status":"noted","reservation_date":"2021-04-20 09:12:22","uploaded":"2021-05-07 07:34:50","revisionof":"","revisedto":"","release":"","crspec":"","crspecversion":"","workitem":"","crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"TSGAP65_004","lsreply":"","link":"https:\/\/www.3gpp.org\/ftp\/TSG_RAN\/WG5_Test_ex-T1\/TSGR5_91_Electronic\/Docs\/R5-212019.zip","group":"R5","meeting":"R5-91-e","year":2021,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0}]