射頻原理介紹

LTERRU與射頻原理介紹LTE協(xié)議主要內(nèi)容RRU根本原理射頻根本原理目錄LTERRU相關(guān)協(xié)議TS

36.101

EvolvedUniversalTerrestrialRadioAccess(E-UTRA);UserEquipment(UE)radiotransmissionandreception

TS

36.104

EvolvedUniversalTerrestrialRadioAccess(E-UTRA);BaseStation(BS)radiotransmissionandreception

TS

36.141

EvolvedUniversalTerrestrialRadioAccess(E-UTRA);BaseStation(BS)conformancetesting

TR

36.801

EvolvedUniversalTerrestrialRadioAccess(E-UTRA);MeasurementRequirements

TR

36.804

EvolvedUniversalTerrestrialRadioAccess(E-UTRA);BaseStation(BS)radiotransmissionandreception

TR

36.942

EvolvedUniversalTerrestrialRadioAccess(E-UTRA);RadioFrequency(RF)systemscenarios

LTERRU開發(fā)協(xié)議版本當(dāng)前研發(fā)中以3GPPRAN39次全會(huì)后的版本為準(zhǔn)相應(yīng)的版本號(hào)是V8.1.0LTE的信號(hào)帶寬和傳輸帶寬配置的關(guān)系ChannelbandwidthBWChannel[MHz]1.435101520TransmissionbandwidthconfigurationNRB615255075100Chiprate（MHz）1.923.847.6815.3623.0430.72版本，去掉了1.6MHz和3.2MHz帶寬兩種定義版本，去掉了對(duì)FDD和TDD的區(qū)分信道帶寬和傳輸帶寬配置定義LTE頻段要求下行主要指標(biāo)基站輸出功率總功率動(dòng)態(tài)范圍頻率誤差EVM占用帶寬ACLROperatingbandunwantedemissions〔與WCDMA的輻射模板類似〕雜散發(fā)射互調(diào)ACLR指標(biāo)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指標(biāo)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指標(biāo)舉例〔FDD與TDD相同〕Frequencyoffsetofmeasurementfilter?3dBpoint,

fFrequencyoffsetofmeasurementfiltercentrefrequency,f_offsetMinimumrequirementMeasurementbandwidth(Note1)0MHz

f<5MHz0.05MHz

f_offset<5.05MHz100kHz5MHz

f<10MHz5.05MHz

f_offset<10.05MHz-14dBm100kHz10MHz

f

fmax10.5MHz

f_offset<f_offsetmax

-15dBm1MHzf_offsetistheseparationbetweenthechanneledgefrequencyandthecentreofthemeasuringfilterf_offsetmaxistheoffsettothefrequency10

MHzoutsidetheBStransmitteroperatingband

Generaloperatingbandunwantedemissionlimitsfor5,10,15and20MHzchannelbandwidth(E-UTRAbands>1GHz)forCategoryBOperatingbandunwantedemissionrequirementslevelsrelativetochanneledge(E?UTRAbands>1GHz，CategoryB)上行主要指標(biāo)靈敏度動(dòng)態(tài)范圍信道內(nèi)選擇性〔In-channelselectivity〕鄰道選擇性阻塞接收雜散接收互調(diào)靈敏度指標(biāo)要求〔FDD與TDD相同〕Thethroughputshallbe≥95%ofthemaximumthroughputofthereferencemeasurementchannelasspecifiedinAnnexAwithparametersspecifiedinTable：E-UTRAchannelbandwidth[MHz]Referencemeasurementchannel

Referencesensitivitypowerlevel,PREFSENS[dBm]1.4FRCA1-1inAnnexA.1-107.33FRCA1-2inAnnexA.1-103.65FRCA1-3inAnnexA.1-101.610FRCA1-3inAnnexA.1*-101.615FRCA1-3inAnnexA.1*-101.620FRCA1-3inAnnexA.1*-101.6Note*: PREFSENSisthepowerlevelofasingleinstanceofthereferencemeasurementchannel.ThisrequirementshallbemetforeachconsecutiveapplicationofasingleinstanceofFRCA1-3mappedtodisjointfrequencyrangeswithawidthof25resourceblockseach動(dòng)態(tài)范圍指標(biāo)要求〔FDD與TDD相同〕E-UTRAchannelbandwidth[MHz]ReferencemeasurementchannelWantedsignalmeanpower[dBm]Interferingsignalmeanpower[dBm]/channelBWTypeofinterferingsignal1.4FRCA2-1inAnnexA.2-76.8-88.7AWGN3FRCA2-2inAnnexA.2-72.9-84.7AWGN5FRCA2-3inAnnexA.2-70.8-82.5AWGN10FRCA2-3inAnnexA.2*-70.8-79.5AWGN15FRCA2-3inAnnexA.2*-70.8-77.7AWGN20FRCA2-3inAnnexA.2*-70.8-76.4AWGNNote*: Thewantedsignalmeanpoweristhepowerlevelofasingleinstanceofthereferencemeasurementchannel.ThisrequirementshallbemetforeachconsecutiveapplicationofasingleinstanceofFRCA2-3mappedtodisjointfrequencyrangeswithawidthof25resourceblockseach鄰道指標(biāo)要求〔FDD與TDD相同〕E-UTRAchannelbandwidth[MHz]Wantedsignalmeanpower[dBm]Interferingsignalmeanpower[dBm]

Interferingsignalcentrefrequencyoffsetfromthechanneledgeofthewantedsignal[MHz]Typeofinterferingsignal1.4PREFSENS+11dB*-520.71.4MHzE-UTRAsignal3PREFSENS+8dB*-521.53MHzE-UTRAsignal5PREFSENS+6dB*-522.55MHzE-UTRAsignal10PREFSENS+6dB*-522.55MHzE-UTRAsignal15PREFSENS+6dB*-522.55MHzE-UTRAsignal20PREFSENS+6dB*-522.55MHzE-UTRAsignalNote*: PREFSENSdependsonthechannelbandwidthasspecifiedinTable

7.2-1.LTE協(xié)議主要內(nèi)容RRU根本原理射頻根本原理目錄FDDRRU根本原理框圖TDDRRU根本原理框圖FDDRRU結(jié)構(gòu)圖LDDLF1PA20F1

電源模塊TR1單板電源接口天饋接口AISG接口調(diào)試接口PIB單板并柜接口〔LTERRU已經(jīng)取消〕光口FDDRRU內(nèi)部硬件關(guān)系圖TDDRRU結(jié)構(gòu)圖TDDRRU內(nèi)部硬件關(guān)系圖LTE協(xié)議主要內(nèi)容RRU根本原理射頻根本原理目錄發(fā)射機(jī)〔高中頻〕典型系統(tǒng)框圖發(fā)射機(jī)〔零中頻〕典型系統(tǒng)框圖接收機(jī)典型系統(tǒng)框圖頻綜/時(shí)鐘〔鎖相環(huán)〕典型框圖射頻的主要性能指標(biāo)工作頻率增益及增益平坦度噪聲系數(shù)P1dBIP3相位噪聲射頻的主要性能指標(biāo)—增益及增益平坦度增益：指輸出功率和輸入功率的比值，單位常用“dB〞。增益平坦度指一定溫度下，在整個(gè)工作頻率