Bravo BMB0900 User Manual Page 1

Bravo Tech (Shen Zhen) Co.,LtdA leading provider for smart coverage enhancement solution in the worldwide wireless communication industryBMB Multi

ConfidentialMCPA vs SCPA•Ability of Multi-carrier amplifier and processing: MCPA can amplifier all carriers of one sector at the same time.•Flexible

Confidential Installation Process Solution evaluationInstallation and debuggingBest effectEffect evaluationTest process endSystem OptimizeSite Mea

ConfidentialInstallation --- Step 1Record BTS information: number of carriers, power of carrier, type of combiner, length of feeder, situation of p

ConfidentialThe installation location’s choosing and fixation The MCPA can be mounted on the outside floor or wall. The amplifier should be fix

ConfidentialWiring manner and Power source choosing1. The power cable should be connected firmly, the power connector can not be loosed and broken

ConfidentialThe gain setting of PA : Before testing the PA, first put the switch of PA gain on the ‘ ON’ side, that means the PA gain is ‘0’. Then

ConfidentialThe test of MODEL : Insert a SIM into the MODEL (pay attention to the direction), read the working state of the device from a test cell

ConfidentialMaintenance --- Error positioningRemote positioning ： 1. Checking the OMC of the base station and alarm information may help to e

Confidential•Maintenance --- Error positioningOn-the-spot Estimation ：1. Before maintenance, first check the indicating lamp and judge the error a

ConfidentialMaintenance --- Ordinary errorsNo downlink output power ： Power amplifier without electricity, amplifier’s own error, duplexer’s error,

ConfidentialCatalogue Catalogue Explain of functionThe skills of installation and debuggingClassical case of fault locationQuestions & Discu

ConfidentialMaintenance --- Ordinary errorsError of Duplexer ： It is a passive device, and the error chance is less. Once this device broken down,

ConfidentialMaintenance --- Typical CaseWarning alarm of the base station lead to the failure of device working : After the BMB900 was installed i

ConfidentialMaintenance --- Typical CaseThe BTS happened to lose coverage : After a TMB was installed, the signal there became weak and there was

Confidential•Applications --- Operation ContrastRoad Test (RT) before installation of MCPA Before MCPA was employed in the region of 25371, as the

ConfidentialQuestions !

ConfidentialFunctionsAmplify the downlink signal, could enhance the output power of BTS to 150W, extent coverage range of BTS.Amplify uplink signa

ConfidentialSystem Block DiagramBTS1Tx/RxRxRxLNAMCPALNABTSDuplexerDuplexerDuplexerCombinerBTS0Tx/RxANT1RxANT0Tx/RxFilter

ConfidentialMain Function Module Multi carrier amplifier adopt module design, so it is convenience and efficient to installation and mainte

ConfidentialMCPA Principle of signal processingMicrocontrollerMainAmp1st LoopAmplitudeAdjust1st LoopPhaseAdjustSignalSamplingCarrierSignalCancella

Confidential•MCPA Principle of signal processing

ConfidentialTechnique advantage of MCPA and SCPA If there are two carriers and output power is 150W. The inter-modulation (IMD) of SCPA and MCPA as

ConfidentialMCPA Testing ReportIf there are two or four carriers in f2~f4 and output power is 150W then the MCPA IMD≥70dBc