资源描述：
《nodeb设备介绍第二章bburru硬件结构》由会员上传分享，免费在线阅读，更多相关内容在工程资料-天天文库。
1、MUisonthebaseunitoftheframeTheEU，slowerframeextensionunitThemaincontrolboxresourceboxHardwarestructureThehardwarestructureofBBU/RRUisfunctionallydividedintothreeunits:AdigitalcontrolunitInthemaincontrolbox,theRNCinterfaceisprovidedfortheentireNodeB,providingthefuncti
2、onboxesfortheclock,theenvironment,andthecallcontrol,andprovidestheexchangeoftheinternsldataforNodeBChannelresourceunitResourcesintheresourcebox,boxisafunctionoftd-scdmathephysicalprocessingbox,includingtransmissionchannel,physicalchannelletterbut,intheNodeBindoorunit
3、andremoteradiofrequencyunittherfinterfaceboardoftheinterfaceDistalrfunitsTd-scdmadistributedbasestationrfremotedeviceRRUconnectionantennaisafunctionboxforsignalamplificationandtransceiver・Completefiberlinkinterface,intermediatefrequencyprocessing,smartantennadownward
4、highpoweramplifier,theuplinksignalsofsmallsignalamplifier,filterforsignalinandout,upanddownoftheanalogsignalfrequency,andotherfunctionsLogicalstructureThelogicalstructureofCPbbu01-1327a/CPrrul-1306cisdividedinto:RNCinterfacemodule:completetheinterfacecapabilitiesofRN
5、CandlowerBBUControlandexchangemodules:mainlycompletecallprocessing,operationmaintenanceandinternaldataexchangeBasebandprocessingmodule:mainlydealswiththephysicallayerFibreinterfacemodule:mainlycompletestheopticalinterfacefunctionbetweenBBUandRRUClockmodule:generateth
6、evariousclocksignalsneededforBBUbyusingGPSorBITSasreferencesourcesMonitormodules:primarilyformonitoringtheenvironmentRemoterfmodules:providewirelesscoverageofthetd-scdmanetwork,throughUuinterfacethroughtheUE，saccessandwirelesslinktransmissionTheindoorunitBBUtd-scdmad
7、istributedbasestationsystemisthemainpartofittocompletethebasebandsignalprocessing,theclockandmonitoringfunction,atthesametimerealizetheIubinterfaces,powersupply,localmaintenanceinterfaces,environmentalmonitoringandtheoutdoorGPSantennainterface.TheBBUUSESanexternalwar
8、ningboxtomonitortheenvironment・Cabinet/rackBBUmachinecabinetiscomposedmainlyofframe,mainboxunit,andtopfunctionmodule・BBUchassissupp
