[{"name":"R5-216415","title":"LS on Scell dropping issue of CA","source":"TSG WG RAN4","contact":"Ingbert Sigovich","contact-id":28887,"tdoctype":"LS in","for":"Information","abstract":"RAN #92-e tasked RAN4 to further discuss on Scell dropping issue. Discussion on Scell dropping of CA is triggered by a measurement problem found in MoP(maximum output power) of FR2 intra-band UL CA and later commented the same unexpected SCell dropping issue is found problematic also in field operation (R4-2112826). Meanwhile, it is also confirmed by RAN4 that the problem also exists for FR1 CA. The background and suggestion on CA measurements are captured in [1] and sent to RAN5. \nIn TS 38.213, the transmission priority rule for CA is specified based on physical channel, and also with: \u201cIn case of same priority order and for operation with carrier aggregation, the UE prioritizes power allocation for transmissions on the primary cell of the MCG or the SCG over transmissions on a secondary cell\u201d. Thus, the UE is always required to drop the power on cell with lower priority when the configured power on cell with high priority occupies all power ability of the UE. \nIn order to advance the above discussions, RAN4 would like to ask RAN1 following questions:\nQuestion 1: Whether UE drop Scell power according to the priority rule defined in 38.213 is considered as an issue from RAN1 perspective.\nQuestion 2: Whether UE drop Scell power according to the priority rule defined in 38.213 has been addressed from 16 or 17? If not, what expected solution(s) are?\nQuestion 3: If the problem above is solved in RAN4 specifications with solution by higher layer configuration, e.g. introduce additional UE-specific configuration of power limits on Pcmax,f,c for each CC to prevent SCell dropping (see e.g. R4-2112826 or R4-2114551 for details), is there any expected RAN1 spec impact or possible conflict with UE behaviour defined in RAN1 specifications?\n2. Actions: To: 3GPP TSG RAN WG1: RAN4 asks RAN1 to provide the answers to the above questions.","secretary_remarks":"","agenda_item_sort_order":40,"ainumber":"5.2","ainame":"Review incoming LS (fm A.I. 3) & new subject discussion papers","tdoc_agenda_sort_order":64150,"status":"noted","reservation_date":"2021-09-30 13:41:37","uploaded":"2021-10-12 19:22:31","revisionof":"","revisedto":"","release":"Rel-17","crspec":"","crspecversion":"","workitem":[{"winame":"NR_RF_FR1_enh-Core"}],"crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"","lsto":"TSG WG RAN1","Cc":"TSG WG RAN5","lsoriginalls":"R4-2114950","lsreply":"","link":"https:\/\/www.3gpp.org\/ftp\/TSG_RAN\/WG5_Test_ex-T1\/TSGR5_93_Electronic\/Docs\/R5-216415.zip","group":"R5","meeting":"R5-93-e","year":2021,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"R5-216420","title":"Reply LS on SCell dropping issue of CA","source":"TSG WG RAN1","contact":"Ingbert Sigovich","contact-id":28887,"tdoctype":"LS in","for":"Information","abstract":"RAN1 thanks RAN4 for the LS on SCell dropping issue of CA. Regarding the questions raised in the LS, RAN1 answers are as follows.\nQuestion 1: Whether UE drop Scell power according to the priority rule defined in 38.213 is considered as an issue from RAN1 perspective.\nAnswer: RAN1 understands that SCell dropping due to power limitation can occur. But RAN1 doesn\u2019t see changes to the priority rule defined in TS 38.213 as a way to address such issue since RAN1 has not identified any issue on the priority rules in TS 38.213.  \n\nQuestion 2: Whether UE drop Scell power according to the priority rule defined in 38.213 has been addressed from 16 or 17? If not, what expected solution(s) are?\nAnswer: No until this RAN1 meeting, RAN1 is not working to modify the power scaling priority rule in Rel-17 either, and understands that RAN4 is discussing potential RAN4 specification updates.\n\nQuestion 3: If the problem above is solved in RAN4 specifications with solution by higher layer configuration, e.g. introduce additional UE-specific configuration of power limits on Pcmax,f,c for each CC to prevent SCell dropping (see e.g. R4-2112826 or R4-2114551 for details), is there any expected RAN1 spec impact or possible conflict with UE behaviour defined in RAN1 specifications?\nAnswer: Regarding the solution examples, there is no RAN1 specification impact by introducing additional UE-specific configuration of power limits on Pcmax,f,c for each CC to prevent SCell dropping. For other aspects, including potential conflict with current RAN1 specification, a definite answer can only be provided when the detailed solution is provided by RAN4.\n2. Actions: To: RAN4 RAN1 asks RAN4 to take the above answers into account in their further work.","secretary_remarks":"","agenda_item_sort_order":40,"ainumber":"5.2","ainame":"Review incoming LS (fm A.I. 3) & new subject discussion papers","tdoc_agenda_sort_order":64200,"status":"noted","reservation_date":"2021-09-30 13:41:37","uploaded":"2021-10-28 12:19:23","revisionof":"","revisedto":"","release":"Rel-17","crspec":"","crspecversion":"","workitem":[{"winame":"NR_RF_FR1_enh-Core"}],"crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"R1-2108701\/R4-2114950","lsto":"","Cc":"","lsoriginalls":"R1-2110698","lsreply":"","link":"https:\/\/www.3gpp.org\/ftp\/TSG_RAN\/WG5_Test_ex-T1\/TSGR5_93_Electronic\/Docs\/R5-216420.zip","group":"R5","meeting":"R5-93-e","year":2021,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"R5-217785","title":"Reply to LS (in R5-214106) on FR2 UE relative power control tolerance requirements","source":"TSG WG RAN4","contact":"Ingbert Sigovich","contact-id":28887,"tdoctype":"LS in","for":"Information","abstract":"RAN4 thanks RAN5 for their LS on FR2 relative power tolerance. RAN4 would like to provide the following responses to the questions raised:\n-\tclarify which should be the value of relative power tolerance for PUSCH to PUSCH transitions for a power step ?P=1dB for the case Pint = P = Pmin.\nResponse: PUSCH to PUSCH transitions with a power step ?P=1dB where Pint = P = Pmin, a relative power tolerance value of \u00b15.0dB applies, as specified in table 6.3.4.3-1 for a power step of ?P < 2dB.\n-\tclarify whether 3 exceptions are allowed for the whole dynamic range addressed in both tables 6.3.4.3-1 and 6.3.4.3-2 or whether 3 exceptions are allowed for each table.\nResponse: The 3 exceptions apply to monotonically increasing or monotonically decreasing power steps over the whole dynamic range, including the NOTE 2 scenario in Table 6.3.4.3-2.\n-\tconsider the possibility of combining the 2 power ranges into one to improve the number of measurable power steps when testing a specific requirement.\nResponse: RAN4 would appreciate further clarification from RAN5 on the motivation for combining the 2 tables, considering that the requirements and conditions applicable for each table are not common.\n2. Action: RAN4 asks RAN5 to take the above responses into account and, if still felt beneficial, to provide further detail on the motivation of combining the tables into a single table.","secretary_remarks":"","agenda_item_sort_order":40,"ainumber":"5.2","ainame":"Review incoming LS (fm A.I. 3) & new subject discussion papers","tdoc_agenda_sort_order":778500,"status":"noted","reservation_date":"2021-11-20 17:33:15","uploaded":"2021-11-21 09:41:08","revisionof":"","revisedto":"","release":"","crspec":"","crspecversion":"","workitem":"","crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"R4-2120025","lsreply":"R5-218231","link":"https:\/\/www.3gpp.org\/ftp\/TSG_RAN\/WG5_Test_ex-T1\/TSGR5_93_Electronic\/Docs\/R5-217785.zip","group":"R5","meeting":"R5-93-e","year":2021,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"R5-217786","title":"Reply LS on exception requirements for Intermodulation due to Dual uplink (IMD)","source":"TSG WG RAN4","contact":"Ingbert Sigovich","contact-id":28887,"tdoctype":"LS in","for":"Information","abstract":"RAN4 thanks RAN5 for the LS in R5-211609 on exception requirements for Intermodulation due to dual uplink (IMD). RAN4 has discussed the clarifications in the LS and would like to answer to RAN5 as follow:\nClarification on Q1: If the EN-DC IMD exceptions are applicable only when the IMD product falls into the victim carrier, and if SA requirements apply otherwise in the case of 2UL.\nAnswer: Yes, SA requirements shall be applied for dual UL carrier frequency combinations when no IMD product (up to 5th orders) falls into the victim\u2019s Rx CBW and no other desensitization components are present, i.e. due to 1) harmonics (UL harmonic or Receiver harmonic mixing), 2) cross-band isolation, 3) counter-intermodulation (C-IM).\nClarification on Q2: Clarify the criteria that need to be fulfilled in order for MSD=0 to apply.\nAnswer: There is no consensus in RAN4 about the criterion for MSD =0.\n2\tActions: RAN4 asks RAN5 to take account the above RAN4 information.","secretary_remarks":"","agenda_item_sort_order":40,"ainumber":"5.2","ainame":"Review incoming LS (fm A.I. 3) & new subject discussion papers","tdoc_agenda_sort_order":778600,"status":"noted","reservation_date":"2021-11-20 17:33:15","uploaded":"2021-11-21 09:41:08","revisionof":"","revisedto":"","release":"Rel-15","crspec":"","crspecversion":"","workitem":"","crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"R5-211609","lsto":"","Cc":"","lsoriginalls":"R4-2120026","lsreply":"","link":"https:\/\/www.3gpp.org\/ftp\/TSG_RAN\/WG5_Test_ex-T1\/TSGR5_93_Electronic\/Docs\/R5-217786.zip","group":"R5","meeting":"R5-93-e","year":2021,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"R5-217787","title":"Reply LS on AMPR edge RB allocation for NS","source":"TSG WG RAN4","contact":"Ingbert Sigovich","contact-id":28887,"tdoctype":"LS in","for":"Information","abstract":"RAN5 question: RAN5 asks RAN4 to clarify \"edge\" RB allocation A-MPR requirements in NS_21 and other NS value A-MPR tables defined with \"outer\u201d and \u201cOuter\/Inner\u201d RB allocations.\nRAN4 answer: RAN4 wants to thank RAN5 for the requested clarification on A-MPR Edge RB allocations. It has been observed by RAN4 that the description for RB allocations in TS 38.101-1 clause 6.2.3 requires clarification. RAN4 agrees that Edge RB allocations get the same A-MPR as Outer RB allocations and will update the wording accordingly.\n2. Actions: RAN4 request RAN5 to take the above information and recommendation into account.","secretary_remarks":"","agenda_item_sort_order":40,"ainumber":"5.2","ainame":"Review incoming LS (fm A.I. 3) & new subject discussion papers","tdoc_agenda_sort_order":778700,"status":"noted","reservation_date":"2021-11-20 17:33:15","uploaded":"2021-11-21 09:41:08","revisionof":"","revisedto":"","release":"Rel-15","crspec":"","crspecversion":"","workitem":[{"winame":"5GS_NR_LTE-UEConTest"}],"crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"xx","lsto":"","Cc":"","lsoriginalls":"R4-2120027","lsreply":"","link":"https:\/\/www.3gpp.org\/ftp\/TSG_RAN\/WG5_Test_ex-T1\/TSGR5_93_Electronic\/Docs\/R5-217787.zip","group":"R5","meeting":"R5-93-e","year":2021,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"R5-217788","title":"Reply LS on frequency bands for testing of A-GNSS sensitivity requirements in LTE and NR SA","source":"TSG WG RAN4","contact":"Ingbert Sigovich","contact-id":28887,"tdoctype":"LS in","for":"Information","abstract":"RAN4 has made the following agreement on frequency bands for testing of A-GNSS sensitivity requirements in LTE and NR SA.\nFor NR, it is agreed to add the following normative text in TS 38.171: \u2026\nAnd similar text will be added to TS 36.171.\nIn addition, RAN4 has agreed that in case the same LTE and NR band is supported by a UE and sharing the same RF chain, e.g., 14\/n14, it suffices to test either LTE band 14 or NR band n14 because of the same interference mechanism.\n2. Actions: RAN4 asks RAN5 to take the above agreements into account in its further discussion.","secretary_remarks":"","agenda_item_sort_order":40,"ainumber":"5.2","ainame":"Review incoming LS (fm A.I. 3) & new subject discussion papers","tdoc_agenda_sort_order":778800,"status":"noted","reservation_date":"2021-11-20 17:33:15","uploaded":"2021-11-21 09:41:08","revisionof":"","revisedto":"","release":"","crspec":"","crspecversion":"","workitem":"","crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"R5-206900","lsto":"","Cc":"","lsoriginalls":"R4-2120403","lsreply":"","link":"https:\/\/www.3gpp.org\/ftp\/TSG_RAN\/WG5_Test_ex-T1\/TSGR5_93_Electronic\/Docs\/R5-217788.zip","group":"R5","meeting":"R5-93-e","year":2021,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0},
{"name":"R5-217789","title":"LS on work towards two new recommendations \"Generic unwanted emission characteristics of base \/ mobile stations using the terrestrial radio interfaces of IMT-2020\"","source":"TSG WG RAN4","contact":"Ingbert Sigovich","contact-id":28887,"tdoctype":"LS in","for":"Information","abstract":"In the LS from ITU-R WP5D in R4-2119596, the group informs about the creation of two new recommendations for Generic unwanted emission characteristics and \u201ckindly invite the Proponents of IMT-2020 to provide relevant materials for these new Recommendations consistent with the Recommendation ITU-R M.2150.\u201d, including \u201cGeneric unwanted emission characteristics of base stations using the terrestrial radio interfaces of IMT-2020 including information on the requirement reference point (e.g. power at antenna connector or TRP)\u201d. This response concerns the BS part.\nRecommendation ITU-R M.2150 is based on information from 3GPP 38- and 37-series specifications dated 2020-07, both for Release 15 and 16. Since NR specifications have a higher complexity than LTE specifications, it is expected that the new Generic unwanted emissions recommendations will also be of higher complexity:\n\u2022\tRecommendation ITU-R M.2150 contain both NR BS specifications (38-series) and MSR BS specifications (37-series). It will have to be investigated to what extent MSR BS needs to be reflected in the new recommendation, considering that those BS requirements are already reflected in Recommendation ITU-R M.2070.\n\u2022\tThere will be added complexity from the multiple types of NR BS in two Frequency Ranges: BS type 1-C, BS type 1-H, BS Type 1-O and BS type 2-O. Requirements are expressed differently for different types and the limits vary with the frequency ranges.\n\u2022\tThe NR BS specification covers operation in a total of 53 bands in FR1 and FR2, where some unwanted emissions requirements are band specific.\nThe high complexity means that providing the relevant materials for the new recommendations will take some time. It will not be possible to respond at the 40th meeting of WP 5D (7-23 February 2022). RAN WG4 expects a response to be available in time for the 41st meeting of WP 5D, presently scheduled for 13-24 June 2022 and with a contribution deadline on 6 June 2022.\nRAN WG4 will also consider different possibilities for how to respond. A possible simplified approach to the LS response could be that 3GPP submits a list of references to 3GPP specifications instead of complete text for the recommendation.\n2\tActions: To TSG RAN: ACTION: \t1. RAN WG4 asks TSG RAN to take the above information for ITU-R M.2070 into account when drafting an LS response to ITU R WP5D.\n\t2. RAN WG4 asks TSG RAN to consider the proposed time plan for responding by WP5D #41 in June and to inform RAN WG4 about when a response needs to be finalized, in order to respond to WP5D by the submission deadline on 6 June 2022.","secretary_remarks":"","agenda_item_sort_order":40,"ainumber":"5.2","ainame":"Review incoming LS (fm A.I. 3) & new subject discussion papers","tdoc_agenda_sort_order":778900,"status":"noted","reservation_date":"2021-11-20 17:33:16","uploaded":"2021-11-21 09:41:08","revisionof":"","revisedto":"","release":"","crspec":"","crspecversion":"","workitem":"","crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"R4-2119596","lsto":"TSG RAN","Cc":"","lsoriginalls":"R4-2120769","lsreply":"","link":"https:\/\/www.3gpp.org\/ftp\/TSG_RAN\/WG5_Test_ex-T1\/TSGR5_93_Electronic\/Docs\/R5-217789.zip","group":"R5","meeting":"R5-93-e","year":2021,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0}]