complete suite measurement functions analyze UMTS mobile transmitter p

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UMTS Measurement Suite
complete suite measurement functions analyze UMTS mobile transmitter performance conjunction with 3030 Series Digitizer module
Maximum output power Frequency stability ACLR Spectrum Emission Mask Occupied Bandwidth Composite (Peak RMS) QPSK (Peak RMS) QPSK phase amplitude errors QPSK origin offset slot timing error Code domain power Peak code domain error Demodulated symbol data active channels Enhanced Physical Channels HS-DPCCH
Applications UMTS measurement suite designed based test systems used development manufacturing radio transmitters sub-modules. Highlights UMTS measurement suite provides analysis major 3GPP W-CDMA signal characteristics including support HS-DPCCH Enhanced Physical Channels. measurement suite uses procedures defined 3GPP 34.121 release measure power, ACLR (adjacent channel leakage ratio), occupied bandwidth, spectrum emission mask, modulation accuracy, frequency stability, code domain power peak code domain error. most cases measurement parameters processed from single acquired data. Wideband spectral mask measurements performed automatically combining results from number narrow band data acqusitions. number acquisitions necessary function desired measurement span digitizer bandwidth. Individual measurement groups processed isolation which case measurement time accelerated single measurement type. variety trace data available enable easy generation graphs, especially useful application debugging. Traces include scrambled DPCH, HS-DPCCH E-DPCH QPSK display constellation diagrams. Similarly, code domain power, peak code domain error spectral mask traces available.
Introduction UMTS measurement suite expands capability Aeroflex 3030 series digitizers perform UMTS uplink analysis power, spectrum modulation accordance with 3GPP 34.121 release UMTS measurement suite library specialised functions with .dll (applications programming interface) broad range ADEs, (application development environments) such LabVIEW, LabWindows/CVI, Visual Basic Visual C/C++.
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UMTS measurement suite requires user entry DPCCH slot format scrambling code. Active channel detection automatically defined user. Measurements then made user specified random timeslot Measurement Speed measurement library used process data acquired synchronously asynchronously from 3030 series Digitizer. asynchronously acquired data, UMTS measurement parameters, power, EVM, ACLR processed from single data under ms*. Faster measurement times possible individual parameters. example; power measured under ms*. Further speed optimization possible using synchronously acquired data. Times based using PXI-8186 slot controller. UMTS/HSUPA spectral mask trace data Example Code measurement suite supplied with comprehensive help including useful example source code user development measurement applications. Examples supplied variety applications development environments including Visual Basic (VB6) C/C++.
UMTS/HSUPA constellation trace data
UMTS/HSUPA code domain power trace data
SPECIFICATION
specifications defined when used conjunction with 3030 series digitizer operating WCDMA 3GPP bands CONTROL PARAMETERS Scrambling Code 16777215 Analysis Mode Random specific slot Specific Slot Number: DPCCH slot format CHANNEL POWER channel power refers measured power when averaged over time slot. Indication Average Power dBfs Result corrected when combined with 3030 series digitizer calibration factor Accuracy <±0.75 temperature range OCCUPIED BANDWIDTH Measurement bandwidth containing total power transmitted spectrum. Indication Accuracy <100 SPECTRUM EMISSION MASK spectral density transmitted signal should within relevant spectral mask each WCDMA 3GPP band user defined mask mask frequency aligned maximum spectrum density Measurement Measurement Range ±12.5 Indication Global Pass Fail worst case level value corresponding frequency relative mask Traces power spectrum selected mask values ADJACENT CHANNEL LEAKAGE RATIO ACLR modulation ratio channel power power measured upper lower adjacent alternate channel. ACLR measured either time domain cocurrent with modulation accuracy frequency domain cocurrent with spectral mask
Number channels Time domain: (3030), (3030A/3035) Frequency domain: (3030), (3030A/3035) Dynamic Range Residual noise 3.84 typically better than Indication Reference channel power upper lower adjacent channel power upper lower adjacent channel power Accuracy 0.05 dB/10 dB(1) FREQUENCY STABILITY frequency error measured difference between input signal nominal 3030 tuned frequency. Frequency Error Range Frequency Error Accuracy (Freq Standard Error Transmitter Freq)) TRANSMIT MODULATION Modulation Accuracy modulation accuracy measured either composite QPSK EVM. modulation accuracy measure difference between measured waveform theoretical modulated waveform (the error vector). measurement interval composite 2560 chips. QPSK measured interval user defined from active channels their spreading factors (SF) determined automatically. Active channels their spreadings factors provided comparison with expected values. Composite range Peak Residual Error Gain estimate Gain derived from computation QPSK range Peak Residual Error QPSK ORIGIN OFFSET (CARRIER LEAK) Range Residual Error QPSK MAGNITUDE PHASE ERROR QPSK magnitude phase component errors available both with without origin offset removed
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Range Magnitude: Phase: degrees Residual Error Magnitude: Phase: degrees Demodulated symbols Symbol data available each active channel Channel Types DPCCH DPDCH1 HS-DPCCH E-DPCCH E-DPDCH1 Slot Timing Error Measured relative external trigger input with result expressed samples. Code Domain Power Code domain power arrays computed providing readings orthogonal channels. Peak Code Domain Error Code domain error arrays computed providing reading orthogonal channels. code domain errors computed projecting error vector onto code domain SF4. peak code domain errors defined maximum values code domain errors. measurements interval slot (2560 chips)
ORDERING
This application designed conjunction with 3030 series digitizer. either purchased with digitizer time order purchased upgrade. When purchased with 3030 series digitizer, order 3030 option When purchased upgrade, then order
Notes Excluding effects noise
RTROPT101/3030
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always seeking improve products, information this document gives only general indication product capacity, performance suitability, none which shall form part contract. reserve right make design changes without notice. trademarks acknowledged. Parent company Aeroflex, Inc. ©Aeroflex 2006.
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Part 46891/161, Issue 02/07

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