LTE RRU与射频原理介绍

LTERRU与射频原理介绍LTE协议主要内容RRU基本原理射频基本原理目录LTERRU相关协议TS36.101EvolvedUniversalTerrestrialRadioAccess(E-UTRA);UserEquipment(UE)radiotransmissionandreceptionTS36.104EvolvedUniversalTerrestrialRadioAccess(E-UTRA);BaseStation(BS)radiotransmissionandreceptionTS36.141EvolvedUniversalTerrestrialRadioAccess(E-UTRA);BaseStation(BS)conformancetestingTR36.801EvolvedUniversalTerrestrialRadioAccess(E-UTRA);MeasurementRequirementsTR36.804EvolvedUniversalTerrestrialRadioAccess(E-UTRA);BaseStation(BS)radiotransmissionandreceptionTR36.942EvolvedUniversalTerrestrialRadioAccess(E-UTRA);RadioFrequency(RF)systemscenariosLTERRU开发协议版本当前研发中以3GPPRAN39次全会后的版本为准相应的版本号是V8.1.0LTE的信号带宽和传输带宽配置的关系ChannelbandwidthBWChannel[MHz]1.435101520TransmissionbandwidthconfigurationNRB615255075100Chiprate（MHz）1.923.847.6815.3623.0430.72V8.1.0版本，去掉了1.6MHz和3.2MHz带宽两种定义V8.1.0版本，去掉了对FDD和TDD的区分信道带宽和传输带宽配置定义TransmissionBandwidth[RB]TransmissionBandwidthConfiguration[RB]ChannelBandwidth[MHz]ResourceblockChanneledgeChanneledgeDCcarrier(downlinkonly)ActiveResourceBlocksLTE频段要求Uplink(UL)eNodeBreceiveUEtransmitDownlink(DL)eNodeBtransmitUEreceiveE-UTRABandFUL_low–FUL_highFDL_low–FDL_highDuplexMode11920MHz–1980MHz2110MHz–2170MHzFDD21850MHz–1910MHz1930MHz–1990MHzFDD31710MHz–1785MHz1805MHz–1880MHzFDD41710MHz–1755MHz2110MHz–2155MHzFDD5824MHz–849MHz869MHz–894MHzFDD6830MHz–840MHz875MHz–885MHzFDD72500MHz–2570MHz2620MHz–2690MHzFDD8880MHz–915MHz925MHz–960MHzFDD91749.9MHz–1784.9MHz1844.9MHz–1879.9MHzFDD101710MHz–1770MHz2110MHz–2170MHzFDD111427.9MHz–1452.9MHz1475.9MHz–1500.9MHzFDD12698MHz–716MHz728MHz–746MHzFDD13777MHz–787MHz746MHz–756MHzFDD14788MHz–798MHz758MHz–768MHzFDD...331900MHz–1920MHz1900MHz–1920MHzTDD342010MHz–2025MHz2010MHz–2025MHzTDD351850MHz–1910MHz1850MHz–1910MHzTDD361930MHz–1990MHz1930MHz–1990MHzTDD371910MHz–1930MHz1910MHz–1930MHzTDD382570MHz–2620MHz2570MHz–2620MHzTDD391880MHz–1920MHz1880MHz–1920MHzTDD402300MHz–2400MHz2300MHz–2400MHzTDD下行主要指标基站输出功率总功率动态范围频率误差EVM占用带宽ACLROperatingbandunwantedemissions（与WCDMA的辐射模板类似）杂散发射互调ACLR指标要求（FDD）E-UTRAtransmittedsignalchannelbandwidthBWChannel[MHz]BSadjacentchannelcentrefrequencyoffsetbelowthefirstorabovethelastcarriercentrefrequencyusedAssumedadjacentchannelcarrier(informative)FilterontheadjacentchannelfrequencyandcorrespondingfilterbandwidthACLRlimit1.4,3.0,5,10,15,20BWChannelE-UTRAofsameBWSquare(BWConfig)[45]dB2xBWChannelE-UTRAofsameBWSquare(BWConfig)[45]dBBWChannel/2+2.5MHz3.84McpsUTRARRC(3.84Mcps)[45]dBBWChannel/2+7.5MHz3.84McpsUTRARRC(3.84Mcps)[45]dBNOTE1:BWChannelandBWConfigarethechannelbandwidthandtransmissionbandwidthconfigurationoftheE-UTRAtransmittedsignalontheassignedchannelfrequency.NOTE2:TheRRCfiltershallbeequivalenttothetransmitpulseshapefilterdefinedinTS25.104[6],withachiprateasdefinedinthistable.ACLR指标要求（TDD）E-UTRAtransmittedsignalchannelbandwidthBWChannel[MHz]BSadjacentchannelcentrefrequencyoffsetbelowthefirstorabovethelastcarriercentrefrequencyusedAssumedadjacentchannelcarrier(informative)FilterontheadjacentchannelfrequencyandcorrespondingfilterbandwidthACLRlimit1.4,3BWChannelE-UTRAofsameBWSquare(BWConfig)[45]dB2xBWChannelE-UTRAofsameBWSquare(BWConfig)[45]dBBWChannel/2+0.8MHz1.28McpsUTRARRC(1.28Mcps)[45]dBBWChannel/2+2.4MHz1.28McpsUTRARRC(1.28Mcps)[45]dB5,10,15,20BWChannelE-UTRAofsameBWSquare(BWConfig)[45]dB2xBWChannelE-UTRAofsameBWSquare(BWConfig)[45]dBBWChannel/2+0.8MHz1.28McpsUTRARRC(1.28Mcps)[45]dBBWChannel/2+2.4MHz1.28McpsUTRARRC(1.28Mcps)[45]dBBWChannel/2+2.5MHz3.84McpsUTRARRC(3.84Mcps)[45]dBBWChannel/2+7.5MHz3.84McpsUTRARRC(3.84Mcps)[45]dBBWChannel/2+5MHz7.68McpsUTRARRC(7.68Mcps)[45]dBBWChannel/2+15MHz7.68McpsUTRARRC(7.68Mcps)[45]dBNOTE1:BWChannelandBWConfigarethechannelbandwidthandtransmissionbandwidthconfigurationoftheE-UTRAtransmittedsignalontheassignedchannelfrequency.NOTE2:TheRRCfiltershallbeequivalenttothetransmitpulseshapefilterdefinedinTS25.105[7],withachiprateasdefinedinthistable.Operatingbandunwantedemission指标举例（FDD与TDD相同）dBMHzoffsetfdBm05.0_577Frequencyoffsetofmeasurementfilter-3dBpoint,fFrequencyoffsetofmeasurementfiltercentrefrequency,f_offsetMinimumrequirementMeasurementbandwidth(Note1)0MHzf5MHz0.05MHzf_offset5.05MHz100kHz5MHzf10MHz5.05MHzf_offset10.05MHz-14dBm100kHz10MHzffmax10.5MHzf_offsetf_offsetmax-15dBm1MHzf_offsetistheseparationbetweenthechanneledgefrequencyandthecentreofthemeasuringfilterf_offsetmaxistheoffsettothefrequency10MHzoutsidetheBStransmitteroperatingbandGeneraloperatingbandunwantedemissionlimitsfor5,10,15and20MHzchannelbandwidth(E-UTRAbands1GHz)forCategoryBOperatingbandunwantedemissionrequirementslevelsrelativetochanneledge(E-UTRAbands1GHz，CategoryB)上行主要指标灵敏度动态范围信道内选择性（In-channelselectivity）邻道选择性阻塞接收杂散接收互调灵敏度指标要求（FDD与TDD相同）Thethroughputshallbe≥95%ofthemaximumthroughputofthereferencemeasurementchannelasspecifiedinAnnexAwithparametersspecifiedinTable：E-UTRAchannelbandwidth[MHz]ReferencemeasurementchannelReferencesensitivitypowerlevel,PREFSENS[dBm]1.4FRCA1-1inAnnexA.1-107.33FRCA1-2inAnnexA.1-103.65FRCA1-3inAnnexA.1-101.6