Requirements for FR2 DL 256QAM and 64QAM Discussion Summary
This document provides a summary of the discussions and contributions related to the requirements for FR2 Downlink (DL) 256QAM and 64QAM during the RAN4#94-e-Bis Electronic Meeting. Various companies such as China Telecom, NTT DOCOMO, Nokia, Huawei, and others have submitted background contributions and proposals for UE core requirements. The meeting focused on defining UE maximum input levels for 256QAM and 64QAM, with options presented for inclusion in Rel-16 or joint introduction in subsequent releases. The document outlines the technical endorsements and future directions for handling these requirements.
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R4-2005655 3GPP TSG-RAN WG4 Meeting # 94-e-Bis Electronic Meeting, 20 30 Apr., 2020 Agenda: 6.12.1 WF on the requirements for FR2 DL 256QAM and 64QAM China Telecom
Background Contributions submitted to RAN4#94-e-bis on FR2 DL 256QAM and 64QAM: - R4-2005099, Email discussion summary for [94e Bis][13] NR_DL256QAM_FR2 for 1stround - R4-2003625, NR UE maximum input level for FR2 DL 256QAM, NTT DOCOMO, INC. - R4-2003656, Draft TR 38.883 for FR2 DL 256QAM v1.2.0, China Telecom - R4-2003657, Maximum input level for FR2 DL 64QAM and 256QAM, China Telecom - R4-2003658, TP for TR 38.883 UE RF requirements for FR2 DL 256QAM, China Telecom - R4-2003771, UE RF core requirements for FR2 DL 256QAM, Nokia, Nokia Shanghai Bell - R4-2003772, Draft CR to TS 38.101-2: Introduction of FR2 DL 256QAM, Nokia, Nokia Shanghai Bell, China Telecom, Verizon, NTT Docomo, T-Mobile - R4-2003773, Draft CR to TS 38.104: Introduction of FR2 DL 256QAM, Nokia, Nokia Shanghai Bell, China Telecom, Verizon, NTT Docomo, T-Mobile, Ericsson - R4-2003908, UE maximum input level for FR2 DL 256QAM, OPPO - R4-2004485, UE maximum input level for DL 256QAM, Huawei, HiSilicon - R4-2003659, Draft CR to TS 38.101-2 Retrieve the Maximum input level for FR2 DL 64QAM(R15), China Telecom
Backgound The CRs for 256QAM BS core and conformance requirements have been technically endorsed in R4-2003773 and R4-2001427 respectively. 1stround views collection for UE core requirement in this meeting: - For 256QAM: Option1: Will be introduced in Rel-16 WI (China Telecom, NTT DOCOMO, Nokia, OPPO) Option2: Will be introduced jointly with that for 64QAM in Rel-16 (Huawei, Intel, China Telecom) Option3: Will not be introduced in Rel-16 WI, decided by RAN5 test feasibility and RAN4 conclusion out of Rel-17 SI on FR2 test methodology enhancement (Apple) - For 64QAM: Further discussion is needed in second around considering the comments received under the CR R4-2003659 in [94e Bis][2] NR_NewRAT_UE_RF_Part_1: Issue 11-1-2
Way forward Option2: Define UE maximum input level for 256QAM jointly with that for 64QAM in Rel-16 - Technically endorse the CR R4-2003772 for UE maximum inpu level for 256QAM - A single CR for UE requirements shall be provided in next meeting to capture the specific requirements agreed in the next page Way forward for 64QAM Further discussion on UE maximum input level for 64QAM in Rel-16 - Options on handling the requirement for 64QAM Will be introduced jointly with that for 256QAM in Rel-16 from the consistence point Will not be introduced considering the requirement has been removed before due to the redundancy
Way forward for 64QAM Define UE maximum input level for 64QAM in Rel-16 as: Table 7.4-1: Maximum input level Channel bandwidth 100MHz -25(NOTE 2) -25 (NOTE 3) Rx Parameter Units 50MHz 200MHz 400MHz Power in transmission bandwidth configuration NOTE 1: The transmitter shall be set to 4 dB below the lower limit of the PUMAX,f,cinequality defined in clause 6.2.4, with uplink configuration specified in Table 7.3.2.1-2. NOTE 2: Reference measurement channel is specified in Annex A.3.3.2: QPSK, R=1/3 variant with one sided dynamic OCNG Pattern as described in Annex A. NOTE 3: Reference measurement channel is specified in Annex A.3.3.4: 64QAM R=1/2 variant with one sided dynamic OCNG Pattern as described in Annex A. dBm Table 7.4A.1-1: Maximum input level for Intra-band contiguous CA Rx Parameter Units Level Power summed over transmission bandwidth configurations of all active DL CCs NOTE 1: The transmitter shall be set to 4 dB below the lower limit of the PUMAX,f,cinequality defined in clause 6.2.4, with uplink configuration specified in Table 7.3.2.1-2 NOTE 2: Reference measurement channel in each CC is specified in Annex A.3.3.2: QPSK, R=1/3 variant with one sided dynamic OCNG Pattern as described in Annex A. NOTE 3: Reference measurement channel in each CC is specified in Annex A.3.3.4: 64QAM R=1/2 variant with one sided dynamic OCNG Pattern as described in Annex A. -25 (NOTE 2) -25 (NOTE 3) dBm
