3GPP TR 38.885 V1.0.2 (2019-02)Technical Report3rd Generation Partnership Project;Technical Specification Group Radio Access Network;NR;Study on Vehicle-to-Everything (Release 16) The present document has been developed within the 3rd Generation Partnership Project (3GPP TM) and may be further elaborated for the purposes of 3GPP.The present document has not been subject to any approval process by the 3GPP Organizational Partners and shall not be implemented.This Report is provided for future development work within 3GPP only. The Organizational Partners accept no liability for any use of this Specification.Specifications and Reports for implementation of the 3GPP TM system should be obtained via the 3GPP Organizational Partners Publications Offices.3GPP TR 38.885 V1.0.2 (2019-02)25Release 16Keywords3GPPPostal address3GPP support office address650 Route des Lucioles - Sophia AntipolisValbonne - FRANCETel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16Internethttp:/www.3gpp.orgCopyright NotificationNo part may be reproduced except as authorized by written permission.The copyright and the foregoing restriction extend to reproduction in all media. 2018, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC).All rights reserved.UMTS is a Trade Mark of ETSI registered for the benefit of its members3GPP is a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational PartnersLTE is a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational PartnersGSM and the GSM logo are registered and owned by the GSM AssociationContentsForeword51Scope62References63Definitions, symbols and abbreviations63.1Definitions63.2Symbols73.3Abbreviations74Introduction74.1Operation scenarios85Sidelink (PC5) aspects105.1NR sidelink unicast, groupcast, and broadcast design105.1.1Physical layer structures115.1.1.1Waveform115.1.1.2Subcarrier spacing and cyclic prefix115.1.1.3Modulation115.1.1.4Scrambling115.1.1.5Channel coding115.1.1.6SL bandwidth parts and resource pools125.1.1.7PSSCH125.1.1.8RE mapping and rate matching125.1.1.9Reference signals125.1.2Physical layer procedures125.1.2.1Multiplexing of physical channels125.1.2.2HARQ procedures135.1.2.2.1General HARQ procedure135.1.2.2.2HARQ procedure details for Mode 1 resource allocation135.1.2.2.3HARQ procedure details for Mode 2 resource allocation135.1.2.3CSI acquisition and link adaptation145.1.2.4Power control145.1.2.5Multi antenna transmission scheme145.2Synchronization145.2.1S-PSS, S-SSS, PSBCH145.2.2Synchronization procedure145.3Resource allocation145.3.1Resource allocation Mode 2155.3.1.1Sensing and resource (re-)selection155.3.1.2Mode 2(a)155.3.1.3Mode 2(c)155.3.1.4Mode 2(d)155.4L2/L3 protocols165.4.1MAC165.4.2RLC175.4.3PDCP176Uplink and downlink (Uu) aspects176.1Advanced V2X use cases over Uu interfaces176.1.1LTE Uu evaluation and enhancement176.1.2NR Uu evaluation and enhancement176.2Uu-based SL resource allocation/configuration176.2.1Control of NR SL by NR186.2.1.1RRC186.2.2Control of NR SL by LTE186.2.3Control of LTE SL by NR197QoS management198RAT and interface selection199Coexistence199.1TDM solutions199.2FDM solutions2010Network aspects2010.1V2X service authorization2010.2UE SL aggregate maximum bit rate2010.3Impacts on the F1 interface2010.4Slicing aspects2011Evaluations and measurement results2011.1Latency2011.2mmWave SL performance2212Conclusions22Annex A:Evaluation assumptions22A.1Simulation profiles22A.2Link-level simulation parameters23Annex : Change history25ForewordThis Technical Report has been produced by the 3rd Generation Partnership Project (3GPP).The contents of the present document are subject to continuing work within the TSG and may change following formal TSG approval. Should the TSG modify the contents of the present document, it will be re-released by the TSG with an identifying change of release date and an increase in version number as follows:Version x.y.zwhere:xthe first digit:1presented to TSG for information;2presented to TSG for approval;3or greater indicates TSG approved document under change control.ythe second digit is incremented for all changes of substance, i.e. technical enhancements, corrections, updates, etc.zthe third digit is incremented when editorial only changes have been incorporated in the document.1ScopeThe present document captures the findings of the study item, Study on NR Vehicle-to-Everything 2. The purpose of this TR is to is to study how to support advanced V2X use cases identified in 3, among other matters. Ho