LTE RRU与射频原理介绍.ppt

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1、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)radiotransmissionandreceptionTS36.104EvolvedUniversalTerrestrialRadioAccess(E-UTRA);BaseStation(BS)radiotransmissionandreceptionTS36.141EvolvedUniversalTerrestrialRadio

2、Access(E-UTRA);BaseStation(BS)conformancetestingTR36.801EvolvedUniversalTerrestrialRadioAccess(E-UTRA);MeasurementRequirementsTR36.804EvolvedUniversalTerrestrialRadioAccess(E-UTRA);BaseStation(BS)radiotransmissionandreceptionTR36.942EvolvedUniversalTerrestrialRadioAccess(E-UTRA);RadioFr

3、equency(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）1.923.847.6815.3623.0430.72V8.1.0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

4、置定义LTE频段要求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ACLROperatingbandunwantedemissions（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(infor

5、mative)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

6、]dBNOTE1:BWChannelandBWConfigarethechannelbandwidthandtransmissionbandwidthconfigurationoftheE-UTRAtransmittedsignalontheassignedchannelfrequency.NOTE2:TheRRCfiltershallbeequivalenttothetransmitpulseshapefilterdefinedinTS25.104[6],withachiprateasdefinedinthistable.ACLR指标要求（TDD）E-UTRAtra

7、nsmittedsignalchannelbandwidthBWChannel[MHz]BSadjacentchannelcentrefrequencyoffsetbelowthefirstorabovethelastcarriercentrefrequencyusedAssumedadjacentchannelcarrier(informative)FilterontheadjacentchannelfrequencyandcorrespondingfilterbandwidthACLRlimit1.4,3BWChannelE-UTRAofsame