Technical Overview
Contents
1. burst signal a RMS detector can be select emission mask TSG E Avg Ler ed and the measurement offset and micas arene Spectrum Emission Mask Subtype0 1 T 0 Off surement interval can be set in units of or idle slot Araneae chips and microseconds The spurious Ref 0 09 dBm Spectrum Ref Total Pur Seg Offset Exo Repeat emissions amp ACP measurement has default 18 86 ene eas Moge offset and interval settings that can be SEM ACP accessed via the Pre Defined Ofs Intvl soft key menu under Meas Setup ExtAt Restore Meas 6 8 E T ery ie Defaults Center 1 00000 GHz Abs Limit Rel Limit Span 8 03000 MHz Total Pwr Ref 20 98 dBm 1 23 MHz n Trig Source Stania o day Meas BWCH2 dBm LOM oath dBm Upper eat Ext Rear SE 750 0000 k 780 0000k 30 00k 79 14 999 2260 M 78 32 1 0088 G This exercise illustrates SEM and ACP mea 780 0000 k 1 9880 M 38 80 k 78 87 999 1308 M 76 18 1 0088 G oo 1 9888 M 4 0000M 30 00k 98 39 997 7256 M 98 85 1 8028 G More surements for idle slots Notice in the PSA 1 of 2 measurement that the mask limit is repre sented by a green trace on the screen PSA Instructions Keystrokes Change measurement mode from SEM to ACP Meas Setup Meas Mode ACP Restart the measurement Figure 5 Restart Note Because the PSA series performs fast Fourier transforms FFT for this measurement the local oscillator LO steps in discrete frequency2. Set triggering for external rear port Meas Setup Trig Source Ext Rear Select single measurement not continuous Meas Control Measure Single Restart the measurement Figure 3 Restart Figure 3 Agilent 1xEV DO Measure PvT measurement display with burst BTS Ch Freq 1 00000 GHz l ae search threshold Power vs Time Subtypeo 1 GREIERCEHE I line white Intermod AH Trig Frame Power vs Time Spurious Emissions __ amp ACP Occupied BH More 1 of 2 Spurious emissions amp ACP Because the ACP measurement for 1xEV PSA DO is based on Conducted Spurious Instructions Keystrokes Emissions by 3GPP2 this measurement is Activate the spurious emissions MEASURE Spurious emissions amp ACP merged into the personality as well The amp ACP measurement measurement mode can be selected as Set triggering for external rear port Meas Setup Trig Source Ext Rear either ACP or SEM spectrum emission mask When switching modes between Restart the measurement Figure 4 Restart ACP and SEM the offset frequency RBW and limit lines are automatically adjusted according to the measurement definition in Figure 4 the 3GPP2 standard Even though this is a S Agilent 1xEV D0 Meas Setup SEM spectrum
3. More 1 of 2 QPSK EVM The QPSK EVM measurement is used to PSA get some indication of the modulation Instructions Keystrokes quality at the chip level for a single chan Perform the QPSK EVM measurement MEASURE More QPSK EVM nel signal It can detect baseband filtering Turn averaging off Meas Setup Avg Number Off modulation and RF impairments but does not detect spreading or scrambling errors Set triggering for external rear Trig Source Ext Rear Select single measurement not continuous Meas Control Measure Single In the default setting the Meas Offset and Restart the QPSK EVM measurement Figure 14 Restart Interval are set as 464 chips and 96 chips respectively QPSK modulation can be found not only in the pilot channel but IZQ Origin Offset 51 35 dB EUM excludes IZQ Offset e Determine rms and peak EVM maximum and average e View I Q polar vector diagram or magnitude error phase error and EVM plots Enable adjacent carrier filtering Figure 13 i also in the MAC and traffic data channels QPSK EVM for pilot Ailent f 1xEV D0 _ seas Of s7Intvi if selected Using the modulation accurac Ext Ref i BTS Ch Freq 1 00000 GHz Meas Offset composite rho measurement you can apg NT Subtypeo 1 MEE NN 464 0 chips check the EVM results for each channel Meas Interval 96 0 chips ae with QPSK modulation To set the target 96 0 chips segment in
4. BenchLink Web Remote Control Software IntuiLink Software Programming Code Compatibility Suite Hardware options PSA Series Spectrum Analyzers Video Output Option 124 PSA Series Spectrum Analyzers Option H70 70 MHz IF Output Spectrum analyzer fundamentals Optimizing Dynamic Range for Distortion Measurements PSA Series Amplitude Accuracy PSA Series Swept and FFT Analysis PSA Series Measurement Innovations and Benefits Spectrum Analysis Basics Vector Signal Analysis Basics 8 Hints for Millimeter Wave Spectrum Measurements Spectrum Analyzer Measurements to 325 GHz with the Use of External Mixers EMI 16 Publication Type Selection Guide Brochure Configuration Guide Product Note Technical Overview Application Note 1443 Product Note Technical Overview Technical Overview Technical Overview Technical Overview Technical Overview Technical Overview Technical Overview Technical Overview Technical Overview Technical Overview Technical Overview Technical Overview Technical Overview Product Overview Data Sheet Technical Overview Technical Overview Product Overview Product Note Product Note Product Note Product Note Application Note 150 Application Note 150 15 Application Note Application Note 1453 Application Note 150 10 Publication 9968 3413E 5980 1284E 9989 2773EN 5988 0735EN 9989 1115EN 0988 7814EN 5988 5015EN 9989 0871EN 9988 3698EN 0988 7884EN 5989 2240EN 9989 11
5. Fwd to MS Rev Mode Setup Radio Device MS MEASURE Code Domain Display Code Order Bit Reverse Go to code domain measurement After capturing the signal change the code order from Hadamard to Bit Reverse Switch view to Code Domain quad view Trace View Code Domain quad view Marker 3 Enter More Mkr gt Despread Put a marker on ACK channel to see the power control of symbol power trace Modify the measurement setup to see longer data Meas Setup Meas Offset 0 slot Meas Interval 3 slot Trace View Demod Bits MEASURE Mod Accuracy Trace View I O Measured Polar Graph Switch view to Demodulated bits Figure 14 Move to modulation accuracy measurement Select IQ polar vector graph and switch to other views Figure 15 Figure 14 Demodulated bits view silent 1xEV D0 Marker presents power off half Ws Ch Freq 1 00000 GHz Completed snape slots with X Code Domain Subtype0 1 M i Marker 3 00000 Marker All Off Ref 0 00 Mky 1 HEGY 153 6ksps_ f Ref 60 00 Symb Power W8 4 16CDP_ 5 1idB CDE 42 15dB9 10 0 ea D EE A eE dB ee r Mkr gt Despread 15 t 3 0 2441411141444 141111444411 14144411111 11111111141 4414414444 14414444411 1144444114141 1111111111 14144114444 144144444 3 5 Bits Slot P CACK E KRXXKXKKKKKK KKKKKKKKKK KKXKXKKKRKKKK KRKKKKKKKKK KKXKXKXKKKKKK
6. KRKKXKKRKKKK KRRKRKKKKKRK KRKKAKRKKRKK RARKRKKKKAKK KRKAKKAKKKAK I XKXXXXXKXK KRKEKKKAKKKK KKKKKKKK Demod Bits Ie 2447402 44494474 e i ke Ke Ee SE I More Dia 2 Demod Bits Figure 15 Modulation accuracy Agilent 1xEV DO Trace View in 1 0 polar graph view ys ch Freq 1 00000 GHz Completed aeoea Mod Accuracy Subtype0 1 MDU SS Peak Avg Rho 8 99899 1 Q Measured Polar Vector Metrics gt 3 18 2 rn i 8 07 Z k 1 Q Error viii Quad View Pk CDE a Code Domain at H16 11 I Power Magnitude Error 2 20 2 rms Phase Error 4 22 rms Freq Error 0 15 Hz I7Q Origin Offset 50 44 dB Active Channels 4 Pilot Offset Slot 1 0 Active Channels 4 Reverse link modulation analysis for 1xEV DO continued Signal Studio 1xEV DO E4438C 404 pro vides the signal configuration for 1xEV DO Revision 0 1xEV DO Revision A subtype 2 signal configuration is already available with another software N 601A SW1 For more details please visit our web site at http www agilent com tfind signalstudio Screen shots on this page were captured with a sample signal generated by Agilent Signal Studio for 1xEV DO Rev A N7601A SW1 1xEV DO revision A subtype 2 All channels ON E2E4 Relative Gain RRI AuxPilot 0dB DRC 1dB ACK DSC 3dB Data 5dB Long Code Mask I 0x0 Q 0x0 RRI bit NA Data Data Rate 1843 2kbps Bit Pattern PN9 PSA Instructions Switch the
7. Trace View for ia re oe BTS Ch Freq 1 00000 GHz Completed PONAT ak Hee aG di 0 _ Code Domain Data Subtype 6 1 Ree AE ATE S Marker 15 0000 pan Ref O 0jMkr 1 H16Ci5 76 8ksps Ref 0 00 Slot Power W16 15 amp CDE Graph CDP 15 04dB CDE 44 48aP HE 7 50 f r T I Q Code Domain Walsh Code 15 Tee Wom 8 0008 slot 5 0000 slot 1 0 Symb Polar Vector W16 15 per ggg Chip Power gt Demod Bits MUX Data Demod Bits 8 8088 kchip 18 239 kchip Note Notice that there are two active MAC channels Each MAC channel is identified by a MAC Index I value that is between 0 and 63 that defines an 64 ary Walsh cover The Reverse Activity RA channel is assigned MAC index 4 and Reverse Power Control RPC channels are assigned MAC index 5 to 63 The Walsh code assigned to the MAC index values are determined using the following equation ws for MAC Index i 0 2 4 62 W472 32 for MAC Index i 1 3 5 63 Modulation accuracy waveform quality An important measure of modulation accu racy for 1xEV DO signals is rho Rho is the ratio of the correlated power to the total power The correlated power is computed by removing frequency phase and time offset and performing a cross correlation between the correlated signal and an ideal reference Rho is important because uncorrelated power appears as interference to a receiver However a rho measurement can also be performed on si
8. domain analysis The code domain analysis measurement pro vides a variety of results First code domain power analysis measures the distri bution of signal power across the set of code channels normalized to the total sig nal power This measurement helps to veri fy that each code channel is operating at its proper level and helps to identify prob lems throughout the transmitter design from coding to the RF section System imperfections such as amplifier non lineari ty will present themselves as an undesired distribution of power in the code domain For the time division multiplexed TDM feature of 1xEV DO signals we need to verify that the access network base station is transmitting the correct power in each of the channels Errors in the code domain usually arise from the channel elements that construct the individual channels or from incorrect network software set tings Since the pilot channel is the active channel its power level relative to the car rier is displayed below the code domain plot This can also be verified using the markers Not only the pilot channel but also MAC and traffic channels can be seen in code domain Once you capture a signal in the code domain measurement you can change the channel types from pilot to MAC and traffic A traffic channel of 1xEV DO could have three modulation types QPSK 8PSK and 160AM For the traffic channel code domain analysis the PSA will de spread any single cod
9. subtype from 0 1 to 2 Keystrokes Mode Setup Demod Physical Layer Subtype 2 Go to Code Domain measurement and run a measurement MEASURE Code Domain Start Change the view to Code Domain quad view Trace View Code Domain quad view Put a marker on data channel on Q phase and despread to see more symbol retails Marker 20 5 Enter Mkr gt Despread Change the branch to IQ combined analysis Figure 16 Meas Setup 1 Q Branch IQC Move to Mod Accuracy measurement MEASURE Mod Accuracy Switch the view to see the detailed statistic results Figure 17 Figure 16 Code domain quad view with data in 8PSK constellation on 10 combined branch Trace View Peal Avg Metrics Figure 17 Mod Accuracy in Peak and Average result metrics view 35 Agilent 1xEV D0 Meas Setup HS Ch Freq 1 90000 GHz Completed Meas Type Abs Rel Code Domain Subtype 2 M Marker 20 5000 Walsh Code WETE BOFS Length ser WLW M A WO b i a KSPS sef 2 Walsh Code Number ji I Q Branch I Q IQC Meas Interval 1 8 Slots Meas Offset 9 8 Slots To fs at D Chan nel P OG More C 6 50 E3 Agilent 1xEV DO Trace View MS Ch Freq 1 00000 GHz Running 1 Q Measured OUR Polar Graph Mod Accuracy Subtype 2 is Peak Avg Average Peak Hold Metrics Rho 9 99893 RMS EVM 3 26 7 IZQ Error Peak EVM 8 Quad View Pk CDE 45 05 at W32 4 I RMS Mag Er
10. the 1xEV DO signal you can ay 1 Q Measured Polar Vector _ aE select the measurement offset and inter ae sorte pies Avg Pilot 1 val The variable measurement offset 60 77 58 and intervals are very useful selecting the Mag Error desired slot to be analyzed with the QPSK Uae ae EVM measurement For example Pilot 1 Phase Error MAC 8 and Idle slot 2 can be selected in Preset Meas Ofs Intvl under Meas Hie Rae a Setup soft key menu 36 40 Hz 8 18 Hz This exercise involves changing the 1xEV DO signal to a single channel signal Reverse link modulation analysis for 1xEV DO For the reverse link of 1xEV DO Option 204 provides the following measurements in Code Domain and Modulation Accuracy Waveform Quality 12 ESG Signal Studio 1xEV DO Instructions Keystrokes Select 1xEV DO Reverse link signal setup Quick Setup gt 1xEV DO Reverse Link for 1xEV DO revision 0 configuration Name the signal as REV1 Change the Project Name Untitled to REV1 Set the carrier frequency and amplitude Frequency 1 GHz Amplitude 20 dBm On Carrier 0 Pilot ON DRC ON with DRC relative gain 3 00 dB ACK ON with ACK relative gain 3 00 dB DATA ON with DATA relative gain 3 75 dB and Q Mask should be 0 zero Click Generate and Download Change the configuration of the signals Download the waveform to ESG PSA Instructions Keystrokes Change the radio setup from BTS
11. 19EN 0988 2388EN 9988 2389EN 9988 3694EN 5988 3695EN 9989 2781EN 9988 3697EN 9989 0056EN 9989 4795EN 9988 2610EN 5980 3115EN 9989 1111EN 9989 1118EN 9988 5261EN 5980 3079EN 9980 3080EN 5980 3081EN 9980 3082EN 5952 0292 9989 1121EN 5988 5680EN 9988 9414EN 9968 3661E LX WARRANTY myAgilent www agilentcom find myagilent A personalized view into the information most relevant to you www I xistandard org LAN eXtensions for Instruments puts the power of Ethernet and the Web inside your test systems Agilent is a founding member of the LXI consortium Three Year Warranty www agilentcom find ThreeYearWarranty Beyond product specification changing the ownership experience Agilent is the only test and measurement company that offers three year warranty on all instruments worldwide Agilent Assurance Plans www Agilentcom find AssurancePlans Five years of protection and no budgetary surprises to ensure your instruments are operating to specifications and you can continually rely on accurate measurements www agilent com quality Agilent Electronic Measurement Group DEKRA Certified ISO 9001 2008 Quality Management System Agilent Channel Partners www agilent com find channelpartners Get the best of both worlds Agilent s measurement expertise and product breadth combined with channel partner convenience www agilent com www agilent com tind psa For more information on Agilent Technologie
12. 440A BAB E444xA H70 PC Software E444xA 230 EE444xA 235 Accessories E444xA 1CM E444xA 1CN E444xA 1CP E444xA 1CR E444xA 015 E444xA 045 E444xA 0B1 Phase noise Noise figure Flexible digital modulation analysis W CDMA HSDPA HSUPA GSM w EDGE cdma2000 1xEV DV 1xEV DO cdmaOne NADC PCD WLAN TD SCDMA External source control Programming code compatibility suite Built in measuring receiver personality RF internal preamplifier 100 kHz to 3 GHz RF uW internal preamplifier 10 MHz to upper frequency limit of the PSA Digital demodulation hardware 80 MHz bandwidth digitizer 40 MHz bandwidth digitizer Switchable MW preselector bypass Y axis video output External mixing Audio input 100 Q USB device side I O interface 512 MB user memory Secure memory erase Replaces type N input connector with APC 3 5 connector 70 MHz IF output BenchLink Web Remote Control Software Wide BW digitizer external calibration wizard Rack mount kit Front handle kit Rack mount with handles Rack slide kit Requires 1DS Requires B J Requires B7J and BAF Requires B J Requires B J Requires B J and B78 Requires B J Requires B J Requires B J Requires 122 or 140 Excludes 110 Exclude 1DS E4440A 43A 45A only excludes 140 107 H70 E4440A 43A 45A only excludes 122 107 H70 Excludes AYZ E4440A 47A 46A 48A only excludes 123 Requires 233 to operate Excludes 122 140 Excludes 117 Shipped stand
13. amic range relative 750 kHz offset 30 kHz RBW Sensitivity absolute 750 kHz offset 30 kHz RBW Accuracy relative 750 kHz offset Code domain Specification applies at 0 dBm input power For pilot 2 MAC channels and 16 channels of QPSK data Relative code domain power accuracy QPSK EVM Minimum power at RF input EVM accuracy Frequency error accuracy Modulation accuracy composite rho Minimum carrier power at RF input Accuracy Composite EVM Rho Frequency error 74 dBm nominal 0 67 dB 0 18 dB typical 0 08 dB 0 03 dB typical 73 dBm nominal 20 to 30 C 0 24 dB nominal 0 30 dB nominal 84 dBm nominal 0 03 dB nominal 40 dBm nominal 0 01 dB 30 dBm nominal 40 dBm 0 3 percent nominal 20 dBm 84 7 dB 86 4 dB typical 97 9 dBm 99 9 dBm typical 0 14 dB 0 15 dB 20 dBm nominal 1 0 percent nominal 10 Hz nominal transmitter frequency x frequency reference error 50 dBm nominal 1 0 dB nominal 0 0010 at rho 0 99751 EVM 5 percent 0 0044 at rho 0 94118 EVM 25 percent 10 Hz transmitter frequency x frequency reference error nominal 1 For specifications on the E4406A VSA please refer to the E4406A VSA data sheet literature number 5968 3030E PSA Series spectrum analyzer E4443A 3 Hz to 6 7 GHz E4445A 3 Hz to 13 2 GHz E4440A 3 Hz to 26 5 GHz E4447A 3 Hz to 42 98 GHz E4446A 3 Hz to 44 GH
14. ard in all PSA instruments with serial number prefix gt MY4615 unless 117 is installed Excludes 115 E4440A only required by E4440A 233 Excludes 122 140 Not available for E4447A Requires 122 E4443A 45A 40A only 6 GHz return loss measurement accessory kit Millimeter wave accessory kit Extra manual set including CD ROM 1 Options not available in all countries Related Literature Publication Title Number PSA in general Selecting the Right Signal Analyzer for Your Needs PSA Series PSA Series Self Guided Demonstration for Spectrum Analysis Wide bandwidth and vector signal analysis 40 80 MHz Bandwidth Digitizer Using Extended Calibration Software for Wide Bandwidth Measurements PSA Option 122 amp 89600 VSA PSA Series Spectrum Analyzer Performance Guide Using 89601A Vector Signal Analysis Software 896508 Wideband VSA System with High Performance Spectrum Analysis Measurement personalities and applications Phase Noise Measurement Personality Noise Figure Measurement Personality External Source Measurement Personality Flexible Modulation Analysis Measurement Personality W CDMA and HSDPA HSUPA Measurement Personalities GSM with EDGE Measurement Personality cdma2000 and 1xEV DV Measurement Personalities cdmaOne Measurement Personality WLAN Measurement Personality NADC PDC Measurement Personality TD SCDMA Measurement Personality Built in Measuring Receiver Personality Agilent N5531S Measuring Receiver
15. ator independent results e Simplify test systems with digital demodulation RF power measure ments spur searches and general high performance spectrum analysis in one analyzer Channel power page 4 z Agilent i i Agilent EPPA as BTS Ch Freq 1 00000 GHz Code Domain MAC The Agilent PSA Series offers high perfor mance spectrum analysis up to 50 GHz with powerful one button measurements a versatile feature set and a leading edge combination of flexibility speed accuracy and dynamic range Expand the PSA to include 1xEV DO digital signal analysis capability with the 1xEV DO measurement personality Option 204 For many manufacturing needs the E4406A VSA a vector signal analyzer is an affordable platform that also offers the 1xEV DO personali ty The 1xEV DO measurement personality pro vides key transmitter measurements for analyzing systems based on 3GPP2 Technical Specifications Group cdma2000 TSG C specifications C S0032 A and C S0033 A 2005 12 3GPP2 C S0024 A 2005 07 is also referred to support modu lation analysis on both forward link and reverse link signals 3Hz 26 5 GHz trum A 1xEV D0 Demod Ext Ref Completed Subtype 2 i mamam MIAE ATIT Trp Power vs time o fi phyacalcavert Subtype page 5 Walsh Code z ar Code Domain aMkr 1 H1 ksps CDP 6 04dB CDE 54 13dB 1 Ju dabut kauala Se This technical overview includ
16. cise demonstrates the one button channel power measurement on the PSA foie jen he e GPIB or LAN on ESG back panel iieo ja ts jafs th Agilent e 2 112 000 000 00 se 10 00 EEN Mm Boao Q Prusical Chanel mater 6 Sj 5 Ga F Fe a o eee oo Be alpe EIZ f Ol wd OOO Q HE o OOO eS ESG o 850 SoS e RF OUT cm o c ee irik ESG event 1 to PSA ext rear trigger IN ESG 10 MHz OUT Figure 1 A computer running Signal Studio 1xEV DO software top is connected to the ESG Vector Signal Generator middle The RF output of the ESG is connected to the RF input of the PSA Series with 1xEV DO measurement personality bottom PSA Instructions Keystrokes Perform factory preset skip this step for E4406A VSA System Power On Preset Preset Type Factory Preset Enter the 1xEV DO mode in the analyzer 1xEV DO Mode More if necessary Choose transmitter device The PSA can make measurements on both the forward and reverse links but only the forward link will be demonstrated in this guide Mode Setup Radio Device BTS Activate channel power measurement Observe the white bars indicating the spectrum channel width and the quantitative values given beneath Figure 2 Figure 2 Channel power MEASURE Channel Power lt Agilent 1xEV DO Measure BIS Ch Freq 1 00000 GHz goa
17. e channel in chip power versus time trace symbol IQ polar vector slot power versus time and demodulat ed bits Multiplexed demodulated bits informa tion is also available by switching Trace View menu Now examine the 1xEV DO signal using each of the algorithms PSA Instructions Keystrokes MEASURE More Code Domain Mode Setup Demod Physical Layer Subtype 0 1 2 Meas Setup More Channel Type MAC Activate the code domain measurement Swith the physical layer type Change the channel type from pilot to MAC Figure 7 Restart the measurement Restart Figure 7 1xEV DO code domain 2 Agilent 1xEV DO Demod for the MAC channel with subtype 2 BTS Ch Freq 1 00000 GHz 1xEV DO rev A Code Domain MAC Subtype 2 Completed Code Domain Power Physical Layer Subtype Walsh Code 2 Total Power 20 35 dBm Total Active Ch 0 006 dBc Preamble Length A chips Preamble MAC Index PSA Instructions Keystrokes Switch the physical layer type 2 Mode Setup Demod Physical Layer Subtype 0 1 Change the channel type to data Meas Setup More Channel Type Data Trace View Code Domain Quad View Place the marker on channel 15 and despread Marker 15 Enter More Mkr gt Despread raed he data Ei B View the constellation of the traffic channels Figure 8 1xEV DO code domain 3 Agilent 1xEV DO
18. es e demonstrations e PSA Series key specifications for 1xEV DO measurements e ordering information e related literature All demonstrations utilize the PSA Series and the E4438C ESG vector signal generator howev er they can also be performed with the E4406A VSA Keystrokes surrounded by indicate hard keys located on the front panel while key names surrounded by indicate soft keys located on the right edge of the display Code domain analysis page 8 Modulation accuracy page 9 Spurious emissions amp QPSK EVM ACP page 11 page 6 am eT 1xEV DO ERT EJ val las 7 ee aja Occupied EN ma O 1xEV DO ne 1 Q Measured Polar Vector a ae a a reverse link page Quad View nT MARKER aqe 12 Code Domain p g Dele amp tn OE m n wa 1 12 0 13 y e Le e m pa Ea Aas a oH E E4406A vector signal analyzer Demonstration preparation To perform the demonstrations the ESG and the PSA Series require the follow ing options Note Signal Studio 1xEV DO E4438C 404 provides the signal config uration for 1xEV DO Revision 0 1xEV DO Revision A subtype 2 signal configuration is already available with another software N 601A SW1 For more details please visit our web site at http www agilent com find signal studio To configure the instruments simply connect the ESG s 50 Q RF output to the PSA s 50 Q RF input with a 50 0 RF cable Turn on the
19. etup Quick Setup gt 1xEV DO Forward Link Name the signal as FWD1 Change the Project Name Untitled to FWD1 Frequency 1 GHz amplitude 20 dBm Set the carrier frequency and amplitude Change the configuration of the signals On Carrier 0 turn Traffic channel ON Download the waveform to ESG Click Generate and Download Connect the PC ESG and PSA Connect a PC or laptop loaded with the Signal Studio 1xEV software and Agilent 1 0 Library to the ESG over the GPIB or LAN interface The setup pro cedure for this guide assumes the LAN interface is used To use LAN interface from Signal Studio you need to set up LAN Client with 1 0 Configuration of Agilent 1 0 Library Follow the steps below using 50 RF cables e Connect the ESG RF Output port to the PSA RF Input port Connect the ESG 10 MHz Out to the PSA Ext Ref In port Connect the ESG event 1 port to the PSA Ext Trigger Input rear panel See Figure 1 for a diagram of this setup Channel power The channel power measurement deter mines the total rms power in a user specified bandwidth The power spectral density PSD is also displayed in dBm Hz Control the following channel power mea surement parameters e integration bandwidth defaults to 1 23 MHz e channel power span defaults to 2 MHz e number of trace averages defaults to 20 e data points displayed 64 to 65536 defaults to 512 This exer
20. g nals with multiple code channels This measurement is known as composite rho It allows you to verify the overall modula tion accuracy for a transmitter regardless of the channel configuration as long as a pilot channel is present A composite rho measurement accounts for all spreading and scrambling problems in the active channels and for all baseband IF and RF impairment in the transmitter chain Figure 9 PSA Instructions Another effective way to quantify modula tion accuracy is to compare the signal being measured to an ideal signal Figure 9 Error vector magnitude Activate modulation accuracy measurement Magnitude error 1 0 error magnitude Error vector Phase error Measured I Q error phase signal Lo Ideal signal reference Keystrokes MEASURE More Mod Accuracy defines the error vector a measure of the Figure 10 amplitude and phase differences between Turn on averaging for 10 slot length Meas Setup Avg Number 10 slots On Off o oe neraetual Select single measurement not continuous Meas Control Measure Single modulated signal The root mean square RMS of the error vector is computed and Restart the modulation accuracy measurement Restart expressed as a percentage of the square root of the mean power of the ideal signal This is the error vector magnitude EVM EVM isa common modulation quality metric Figure 10 a _ teas Setup widely
21. i Agilent J 7 x PSA Series Spectrum Analyzers o E4406A Vector Signal Analyzer or 1xEV DO Measurement Personality c ee ad b Referring both 3GPP2 1xEV DO Revision 0 and Revision A Technical Overview with Self Guided Demonstration Option 204 The 1xEV DO measurement personality available on the Agilent PSA Series high perfor mance spectrum analyzers and the E4406A vector signal analyz er VSA solves your problems in 1x evolution data only 1xEV DO measurements with power ful signal analysis capabilities designed for standards based measurements and easy to use functions in one analyzer That means you can accelerate your development schedule to quickly obtain manufacturing efficiency ot Agilent Technologies Make the Transition to Third Generation 3G Wireless Technology Faster and Easier Migrating from cdma2000 to 1xEV DO will introduce new challenges in the design and test of base stations and mobile trans mitters Be at ease in this transition with a comprehensive one analyzer solution from Agilent e Expand design possibilities with powerful measurement capability and flexibility for both 1xEV DO revision 0 and revision A e Expedite troubleshooting and design verification with numerous features and an intuitive user interface e Streamline manufacturing with speed reliability and ease of use e Improve yields with highly accurate measurements and oper
22. ied bandwidth Instructions Keystrokes OBW requirements for some of the band Add traffic channel for Active slot with QPSK Click the Traffic channel tab to turn ON classes Effectively OBW determines the fre modulation quency bandwidth that contains 99 per Download the waveform to the ESG Click Generate and Download cent of the total radiated power e Specify the resolution bandwidth PSA defaults to 30 kHz and the span instructions Keystrokes a Ch h ied bandwidth Figure 6 MEASURE Occupied BW Customize a simple PASS FAIL ange the occupied bandwidth Figure 6 Occupie limit test defaults to 1 48 MHz e Specify number of averages defaults to 10 Figure 6 Occupied 2 Agilent 1xEV DO Measure bandwidth ae ee TEA In this measurement the total power of the BTS Ch Freq 1 00000 GHz EENS aS displayed span is measured Then the power occupied Subtype0 1 METETE E is measured inward from the right and left extremes until 0 5 percent of the power is Reo oo accounted for in each of the upper and dB Makhan TAr lower parts of the span The calculated dif de im iW ference is the occupied bandwidth For sim Extht i powervemning ple setup the PSA defaults to a 1 48 MHz PASS FAIL limit value I trig Sas sas ee haem ened eee Spurious Emissions CF 1 00000 GHz Res Bw 29 9997 kHz Points 513 Occupied Occupied BH Total Power BH 1 2497 MHz 20 85 dBm More 1 of 2 Code
23. in the left window and the 0 constellation is in Change the view for numeric results only Trace View Result Metrics One Slot Fi 12 the right window If you prefer to view the Figure 12 numeric results only please change dis plays in Trace View key Figure 11 Modulation accuracy e Measure EVM rho frequency for data channel error Q origin offset and pilot offset with the active channel numbers for the selected channel type e Customize limits for rms EVM peak EVM rho frequency error and Q origin offset e Select channel type from some selections pilot MAC data preamble and overall in forward link pilot DRC ACK and data in reverse link e Comply the waveform quality measurements in 3GPP2 defined in C S0032 forward link and C S0033 reverse link e View I Q polar vector constellation magnitude error phase error and EVM plots e Specify PN offset forward link e Read power timing phase and EVM data for each active channel Figure 12 Numeric result summary of measured channel for one slot 3 Agilent BTS Mod Accuracy Data Meas Ch at W16 3 0 Magnitude Error 2 45 rms Phase Error 26 S3 rms Freq Error 6 36 Hz I7Q Origin Offset 71 39 dB Active Channels Pe 4 M 2 D 16 Pilot Offset gt Agilent BTS Mod Accuracy Ch Freq 1 00000 GHz 1xEV DO Completed Subtype 0 1 MECAZ E Meas Setup Display Channel T
24. increments The step size Figure 5 is assigned under Meas Setup Offset Limits Step ACP measurement Agilent 1xEV DO Meas Setup Freq A measurement is made at each frequency for idle slot Avg Number point offset segments group the points For each seg BTS Ch Freq 1 00000 GHz 18 ment the resolution bandwidth can be individually Spectrum Emission Mask Subtype0 1 im 7 3 On Off specified Step Freq and Res BW default to coupled Avg Mode mode When these parameters are set manually it is Ref 8 08 dBm Spectrum Ref Total Pwr Seg Offset Exp Repeat essential that the resolution bandwidth be larger than 19 00 the step size If not some signal components will be qB age Meas noce missed when they fall between successive peaks of pE ERr EER am the resolution bandwidth filter In fact it is good prac tice to make the Res BW twice as wide as the step size given that the filter is Gaussian This ensures that successive filter bandwidth steps will overlap ExtAt Restore Meas 8 0 Defaults Center 1 00000 GHz Abs Limit Rel Limit Span 3 99000 MHz Total Pwr Ref 21 20 dBm 1 23 MHz 7 Trig Source Startchss eerie Meas BWCH2 dBc rai dB ibe ppa dBm Ext Rear 750 0000 k 750 0000 k 30 00k 57 12 78 32 58 96 808 16 1 9808 M 1 9808 M 30 00k 71 24 92 44 72 79 93 99 More 1 of 2 Occupied bandwidth The standards recommended by the 3GPP2 ESG Signal Studio 1xEV DO for 1xEV DO have occup
25. na Channel Power Subtype 1 MUERE ny Intermod Power vs Time Spurious Emissions amp ACP Occupied Channel Power 20 83 dBm 1 23000 MHZ Power versus time Power versus time PvT is a key measure ment for 1xEV DO signals 3GPP2 C S0032 defines the 3 1 2 3 1 Total power and 3 1 2 3 2 Pilot7 MAC channel power Measurement of the burst signal is neces sary in the transmitter test for 1xEV DO idle slot based on the Pilot MAC channel power requirement The burst mask test is very important for 1xEV DO idle slot sig nal As seen in the below window the limit mask can be set for 5 regions Active slot also can be measured in PvT to support the Total power test item In this measurement only upper and lower limit lines can be seen because the signal is continuous not bursted In this exercise the PvT measurement for idle slot burst signal can be seen If the signal has different idle slot gain the burst search thresh old can be adjustable to the target signal con figuration ESG Signal Studio 1xEV DO Instructions Remove traffic channel to change the signal from Keystrokes Click the Traffic channel tab to turn OFF Active slot to Idle slot Pilot MAC burst signal Download the waveform to ESG Click Generate and Download PSA Instructions Keystrokes Activate PvT measurement MEASURE Power vs Time
26. power in both instru ments Now set up the ESG and Signal Studio to provide a 1xEV DO forward link signal via LAN connection from the external PC Product type Model number Required options ESG vector E4438C 502 503 504 or 506 frequency range up to at least 2 GHz 601 or 602 baseband generator 404 Signal Studio 1xEV DO software rev 2 0 or later signal generator PSA Series spectrum analyzer E4440A E4443A E4445A B7J Digital demodulation hardware E4446A E4447A E4448A 204 1xEV DO measurement personality Use PSA with firmware revision A 09 or later For E4406A VSA firmware revision A 10 or later is necessary ESG Instructions Keystrokes Preset the ESG Preset Check the IP Address Utility GPIB RS 232 LAN LAN Setup eg IP Addresss 192 168 100 1 ESG Signal Studio 1xEV DO Instructions Keystrokes Run the Signal Studio 1xEV DO Double click the shortcut on your PC desktop or access the program via Windows start menu Verify the communication between ESG and Signal Studio via LAN Instruments menu has the list to connection Input the Hostname or IP address of the ESG Then press Test Connection button If OK comes out on Result and EV DO option If you cannot see the OK on Result please check is valid on Note it s ready to generate and the instrument hostname and IP address download the signal data Select 1xEV DO Forward link signal s
27. ror 2 31 RMS Phase Error 3 38 Code Domain Freq Error IZQ Origin Offset Pilot Offset Max Inactive CH Active CH Pilot W16 RRI W16 4 1 ACK DSC W32 12 1 6 73 dBc Avg Pur 9 74 dBc 9 75 dBc DRC W16 8 Q Aux Pilot W32 28 Data E4E2 8 75 dBc 9 76 dBc 4 73 dBc 0 11 Hz adiar he 56 33 0 44 Hz dB 52 90 dB 45 83 dBc from Pilot Peak Pur Reference 9 72 dBc 0 01 dB 9 74 dBc 3 00 dB 6 73 dBc 8 99 dB 8 75 dBc 0 02 dB 9 75 dBc 5 01 dB 4 72 dBc at W32 0 from Piloti Reference 0 02 dB 2 99 dB 0 97 dB 0 03 dB 5 00 dB 13 PSA Series Key Specifications 1xEV DO measurement personality 10 MHz to 3 GHz The following specifications apply to models E4443A 45A 40A only Models E4446 and E4448A have similar but not warranted performance Channel power Minimum power at RF input Absolute power accuracy Attenuation gt 2 dB Relative power accuracy Power vs time PvT Minimum power at RF input Absolute power accuracy Attenuation gt 2 dB Attenuation lt 2 dB Measurement floor Relative power accuracy Fixed channel fixed input attenuator Mixer level 52 to 12dB CCDF Minimum carrier power at RF input Histogram resolution Intermodulation distortion Minimum carrier power at RF input Occupied bandwidth Minimum carrier power at RF input Frequency accuracy Spurious emissions amp ACP Minimum carrier power at RF input Dyn
28. s products applications or services please contact your local Agilent office The complete list is available at www agilent com find contactus Americas Canada 877 894 4414 Brazil 11 4197 3600 Mexico 01800 5064 800 United States Asia Pacific 800 829 4444 Australia 1 800 629 485 China 800 810 0189 Hong Kong 800 938 693 India 1 800 112 929 Japan 0120 421 345 Korea 080 769 0800 Malaysia 1 800 888 848 Singapore 1 800 375 8100 Taiwan 0800 047 866 Other AP Countries 65 375 8100 Europe amp Middle East Belgium 32 0 2 404 93 40 Denmark 45 45 80 12 15 Finland 358 0 10 855 2100 France 0825 010 700 0 125 minute Germany 49 0 7031 464 6333 Ireland 1890 924 204 Israel 972 3 9288 504 544 Italy 39 02 92 60 8484 Netherlands 31 0 20 547 2111 Spain 34 91 631 3300 Sweden 0200 88 22 55 United Kingdom 44 0 118 927 6201 For other unlisted countries www agilent com find contactus BP 09 27 13 Product specifications and descriptions in this document subject to change without notice Agilent Technologies Inc 2013 Published in USA November 25 2013 5988 4828EN Agg Agilent Technologies
29. used in digital communications Pilot channel m NDE modulation BTS Ch Freq 1 00000 GHz Completed 10 Slots Composite EVM measures the EVM accuracy Mod Accuracy Subtype 6 1 On Off of the multi code channel signal It is valu Avg Mode able for determining the quality of the Meas Ch Pilot 1 Q Measured Polar Vector ao ee transmitter for a multi channel signal j i detecting spreading or scrambling errors Active Idle identifying certain problems between base on Ae 39 53 dB Limits band and RF sections and analyzing errors that cause high interference in the signal at H32 25 I Magnitude Error Capture Intvl 1 Slots Freq Error 0 60 Hz Meas I7 7Q Origin Offset 78 36 dB Offset Slots Active Channels P 1 M 2 Pilot Offset OD 16 More 1 of 3 In PSA revision 8 or earlier and E4406A revision 9 or earlier measurement name was Modulation accuracy composite rho To use the same measurement name defined in 3GPP2 conformance test we ve changed the name in the latest firmware PSA A 09 and E4406A A 10 The PSA measures rho and EVM as well PSA as magnitude phase and code domain Instructions Keystrokes errors In this exercise the above measure ments will be explored Change channel type from pilot to data Data Restart the measurement Figure 11 Meas Setup More Display channel Type Restart The measurement results are shown
30. ype Data IZQ Measured Polar Vector Ch Freq 1 00000 GHz 1xEV DO Completed Subtype 0 1 PASS Trig Source Free Run gt Immediate Spectrum Normal Invert Restore Meas Defaults Advanced gt More 3 of 3 Trace View 1 Q Measured Polar Graph Result Metrics in Power Timing and Phase view forward link e Set flexible long code mask for and Q separately between 00000000000 and 3FFFFFFFFFF reverse link e Choose to include or exclude the Q origin offset in the EVM calculation e Use the optional preamplifier to measure low level signals e Statistic analysis can be provided by View Trace when averaging This exercise explores the different ways in which the modulation accuracy measure ment can be used 10 Measured Ch Rho EVM Pk CDE Magnitude Error Phase Error Frequency Error IZQ Origin Offset Pilot Offset Active Channels Preamble Length Max MAC Inactive Ch Max Data Active Ch Min Data Active Ch Result Metrics Data 9 99883 3 42 Z rms 8 74 Z pk 42 95 dB 2 45 28 53 8 38 Hz 71 39 dB Pilot 1 chips 43 95 dB 15 00 dB 15 10 dB rms rms Slot Type at W16 3 0 MAC 2 Data MAC Index at W64 14 Q at W1i6 9 0 at W16 5 I Active Data Mod Scheme One Slot Channel Peak Ayg Metrics Summary Peak Avg Metrics QPSK Display Channel Type ___ Data 16
31. z E4448A 3 Hz to 50 GHz Options To add options to a product use the following ordering scheme Model E444xA x 0 3 5 6 7 or 8 Example options E4440A B7J E4448A 1DS Warranty amp Service Standard warranty is three years R 51B 001 5C Warranty Assurance Plan Return to Agilent 5 years Calibration 1 Included Calibration Assurance Plan Return to Agilent 3 years standard R 50C 011 5 Calibration Assurance Plan Return to Agilent 5 years R 50C 016 3 Agilent Calibration Uncertainties Guardbanding 3 years R 50C 016 5 Agilent Calibration Uncertainties Guardbanding 5 years AMG Agilent Calibration Uncertainties Guardbanding accredited calibration A6J ANSI Z2540 1 1994 Calibration R 50C 021 3 ANSI Z540 1 1994 Calibration 3 years R 50C 021 5 ANSI Z2540 1 1994 Calibration 5 years UK6 Commercial calibration certificate with data To be ordered with PSA E444xA 0BW Service manual R 52A Calibration software and licensing ordered with PSA N7810A PSA Series calibration application software stand alone order Measurement Personalities E444xA 226 E444xA 219 E444xA 241 E444xA BAF E444xA 210 E444xA 202 E444xA B 8 E444xA 214 E444xA 204 E444xA BAC E444xA BAE E444xA 217 E444xA 211 E444xA 215 E444xA 266 E444xA 233 Hardware E444xA 1DS E444xA 110 E444xA B7J E444xA 122 E444xA 140 E444xA 123 E444xA 124 E444xA AYZ E444xA 107 E444xA 111 E444xA 115 E444xA 117 E4
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