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R&S FSV-K10x LTE UL Measurement Application - rohde

1. a User Manual 1173 1433 02 04 124 R amp S FSV K10x LTE Uplink Remote Commands Analyzing Measurement Results 8 7 5 5 Defining Global Signal Characteristics CCB Flaine ee We UL Te cca chic nce cave ned dear ptu e E EE E esaet xe E ER ux E OE 125 CONFigure LTE UL UEID ID Sets the radio network temporary identifier RNTI of the UE Parameters lt D gt lt numeric value gt RST 0 Example CONF UL UEID 2 Sets the UE ID to 2 8 8 Analyzing Measurement Results 8 8 1 General Commands for Result Analysis SENSeILETEESUBF rame SE EB cuiua cased ED aad ede xh ane te ta epa E AAA 125 KE Acc 125 Elus 126 SENSe L TE SUBFrame SELect lt Subframe gt This command selects the subframe to be analyzed Parameters lt Subframe gt ALL lt numeric value gt ALL Select all subframes 0 39 Select a single subframe RST ALL Example SUBF SEL ALL Select all subframes for analysis UNIT BSTR lt Unit gt This command selects the way the bit stream is displayed User Manual 1173 1433 02 04 125 R amp S FSV K10x LTE Uplink Remote Commands 8 8 2 8 8 2 1 Analyzing Measurement Results Parameters lt Unit gt SYMbols Displays the bit stream using symbols BITs Displays the bit stream using bits RST SYMbols Example UNIT BSTR BIT Bit stream gets displayed using Bits
2. eene 50 Configuring the Data Analyse 50 Compensating Measurement Erors eene 52 Configuring Uplink Frames ener nnne nnne nire 52 Configuring TDD Ggnals eee 52 Configuring the Physical Layer Cell Jdenmttv ec ee eeceeeeeeeecne eee eeeeneeeeeeeenaeeeeeeeeaas 54 Configuring Gubirames 00 eee eee cette eee eee e eter tree era nennen eene ener nnne nnns 55 Defining Advanced Signal Characteristics eeeeenneneeee 56 Configuring the Demodulation Reference Gong 56 Configuring the Sounding Reference Gigonal sse 58 Defining the PUSCH Structure 61 Defining the PUCCH Structure eene nennen erre nns 62 Defining Global Signal Charactertetice ccc cecececeeeneeeeeeeeeenneeeeeeeeenaeeeeeeeeenaeeeeeeeeaas 65 Analyzing Measurement Results eee 66 Selecting a Particular Signal Aspect eeeeeeenenennee enne 66 Defining Measurement Uhnits eseeeseeeeeeneenenneenenn nnne nnne nennen 67 Defining Various Measurement Parameters eene 67 Selecting the Contents of a Constellation Diagram eese 68 Scaling the Y AXIS nie eir nien oig AANRAKEN AEAEE EKAA oi e eeu EE 69 Using EI CIERRE N 69 e M
3. I 46 Category Selects the limit definitions for SEM measurements User Manual 1173 1433 02 04 46 R amp S FSV K10x LTE Uplink Configuring and Performing the Measurement a eee ee ee ee ee eee Configuring Spectrum Measurements Category A and B are defined in ITU R recommendation SM 329 The category you should use for the measurement depends on the category that the base station you are testing supports Remote command SENSe POWer SEM CATegory on page 82 5 3 3 Configuring ACLR Measurements The ACLR settings are part of the Spectrum tab of the General Settings dialog box General MIMO Advanced Trigger Spectrum ACLR Settings Assumed Adj Ch Carr EUTRA same BW Num of Tx Channels 1 Tx2 Bandwidth 10 MHz Tx2 Offset 10 MHz Noise Correction Sweep Time 500 ms Assumed Adjacent Channel Kammer 21 2 cette Deren rente eben 47 INOISE CORPO CUON ME 47 SWPESD RT VE 47 Numbernof TX Channels 2 err tiet tette rn eto tnn rtu cn Yoda eua hinaus 48 Assumed Adjacent Channel Carrier Selects the assumed adjacent channel carrier for the ACLR measurement The supported types are EUTRA of same bandwidth 1 28 Mcps UTRA 3 84 Mcps UTRA and 7 68 Mcps UTRA Note that not all combinations of LTE Channel Bandwidth settings and Assumed Ad Channel Carrier settings are defined in the 3GPP standard Remote command SENSe POWer ACHannel AACHannel on page 81 Noise Correction
4. 1 User Manual 1173 1433 02 04 4 R amp S FSV K10x LTE Uplink Contents 7 1 7 2 8 1 8 2 8 2 1 8 2 2 8 2 3 8 2 4 8 2 5 8 2 6 8 3 8 3 1 8 3 2 8 4 8 5 8 6 8 6 1 8 6 2 8 7 8 7 1 8 7 2 8 7 3 8 7 4 8 7 5 8 8 8 8 1 8 8 2 8 8 3 8 9 File Management eeeeeeeeeeeeeeeeeeee nennen nennen nnn nnn nnns 72 File Curbed 72 SAVE RECALL Key tiie ahve directi eii cio ena er Fera t Rar be vore RU 73 Remote e ET Lease ua repa nini nina nonno Se aga R ea RR RYaKaaRR RR Eus 74 Overview of Remote Command Suffixes eese nnn 74 Introductio e cmn 74 Conventions used in Descripitons essem 75 bong and Short FOM a etie edel 76 Numeric SUITTIXOS EE 76 lge EI EE 76 Alternative KeywWOFdS iere eege geed dee 77 e ln 7T Selecting and Configuring Measurements eese 79 Selecting Meas rements 2 3 2 deiner cech eade ced eese cuc eu nudae dee du eoa De dans 79 Configuring Frequency Sweep Measurement sse 80 Remote Commands to Perform Measurements eee 83 Remote Commands to Read Numeric Results eene 84 Remote Commands to Read Trace Data seen 91 Using the TRACe DATA Commande 91 Remote Commands to Read Measurement Results 100 Remote Commands to Configure the Application suus 102 Remote Commands for General
5. UNIT EVM Unit This command selects the EVM unit Parameters Unit DB EVM results returned in dB PCT EVM results returned in 96 RST PCT Example UNIT EVM PCT EVM results to be returned in 96 Marker and Delta Marker e Using EN TE 126 e Using Delta Markets error eene renean kon aene nn EEN ie ERR Rn ord 128 Using Markers CAL Culate nz M AbkercmzACOEtF iis esentrssa desear sisse seriis sss sn asas 126 CAL Culate nzM Abkercmz M ANimum PDEAKT nnnm nennen nnn 127 CALCulate n MARKer m MINimum PEAK eeeeseseiseseesesenen nnne enne nnn 127 CALCulate n MARKer m STATe einen tin nintn n aaa nnn nha an kr saa Sen RASA 127 CAL Culate nz M bkercmz TR ACe his esneetssa aset isis se setis assess isis 127 ele EE EE 127 GAL Gulate lt n gt MARK m gt EE 128 CALCulate lt n gt MARKer lt m gt AOFF This command turns all markers and delta markers off Suffix lt m gt 1 Example CALC MARK AOFF Turns off all markers Usage Event User Manual 1173 1433 02 04 126 R amp S FSV K10x LTE Uplink Remote Commands a a ee Analyzing Measurement Results CALCulate lt n gt MARKer lt m gt MAXimum PEAK This command positions a marker on the peak value of the trace Suffix lt m gt 1 n Example CALC MARK2 MAX Positions marker 2 on the trace peak Usage Event CALCulate lt n gt MARKer lt m gt MINimum PEAK This command positions a
6. FREQuency CENTer on page 104 Channel Bandwidth Number of Resource Blocks Specifies the channel bandwidth and number of resource blocks RB The channel bandwidth and number of resource blocks RB are interdependent Cur rently the LTE standard recommends six bandwidths see table below The R amp S FSV also calculates the FFT size and sampling rate from the channel band width Those are read only User Manual 1173 1433 02 04 40 R amp S FSV K10x LTE Uplink Configuring and Performing the Measurement a a i eS ES A General Settings Channel Bandwidth MHz 1 4 3 5 10 15 20 Sample Rate MHz 7 68 15 36 30 72 30 72 FFT Size 512 1024 2048 2048 Remote command CONFigure LTE UL BW on page 103 CONFigure LTE UL NORB on page 104 Cyclic Prefix The cyclic prefix serves as a guard interval between OFDM symbols to avoid interferen ces The standard specifies two cyclic prefix modes with a different length each The cyclic prefix mode defines the number of OFDM symbols in a slot e Normal A slot contains 7 OFDM symbols e Extended A slot contains 6 OFDM symbols The extended cyclic prefix is able to cover larger cell sizes with higher delay spread of the radio channel e Auto The application automatically detects the cyclic prefix mode in use Remote command CONFigure LTE UL CYCPrefix on page 103 5 2 2 Configuring the Input Level The level settings contain set
7. N PUCCH Defines the resource index for PUCCH format 1 1a 1b respectively 2 2a 2b EEUU RA E EI e e LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLUIAALLISCE User Manual 1173 1433 02 04 64 5 7 5 Defining Advanced Signal Characteristics It is also possible to define Npyccy on a subframe level by selecting the Per Subframe menu item For more information see chapter 5 6 3 Configuring Subframes on page 55 Remote command CONFigure LTE UL PUCCh NPAR on page 124 Defining Global Signal Characteristics The global settings contain settings that apply to the complete signal The global settings are part of the Uplink Adv Sig Config tab of the Demodulation Settings dialog box OE IDA RN Ti Heec 65 UE ID n_RNTI Sets the radio network temporary identifier RNTI of the UE Remote command CONFigure LTE UL UEID on page 125 R amp S FSV K10x LTE Uplink Analyzing Measurement Results Selecting a Particular Signal Aspect 6 Analyzing Measurement Results The Measurement Settings contain settings that configure various result displays These settings are independent of the signal they adjust the display of the results You can open the dialog box with the Meas Settings softkey The corresponding dialog box is made up of three tabs By default the Selection tab is the active one e Selecting a Particular Signal Aspect 66 e Defining Measurement Units cceeeiiieeceeec ee
8. T Ra REP Fig 1 3 Random Access Structure principle User Manual 1173 1433 02 04 11 R amp S FSV K10x LTE Uplink Introduction a a Long Term Evolution Uplink Transmission Scheme Multiple random access channels may be defined in the frequency domain within one access period Tra in order to provide a sufficient number of random access opportunities For random access a preamble is defined as shown in figure 1 4 The preamble sequence occupies Tpge 0 8 ms and the cyclic prefix occupies Tep 0 1 ms within one subframe of 1 ms During the guard time Ter nothing is transmitted The preamble band width is 1 08 MHz 72 sub carriers Higher layer signalling controls in which subframes the preamble transmission is allowed and the location in the frequency domain Per cell there are 64 random access preambles They are generated from Zadoff Chu sequences Tra T CP Fig 1 4 Random Access Preamble The random access procedure uses open loop power control with power ramping similar to WCDMA After sending the preamble on a selected random access channel the UE waits for the random access response message If no response is detected then another random access channel is selected and a preamble is sent again Uplink scheduling Scheduling of uplink resources is done by eNodeB The eNodeB assigns certain time frequency resources to the UEs and informs UEs about transmission formats to use Sched
9. 04 68 R amp S FSV K10x LTE Uplink Analyzing Measurement Results Scaling the Y Axis 6 5 Scaling the Y Axis In the Y Axis tab of the Measurement Settings dialog box you can set various param eters that affect some result displays Selection Units Misc Screen B EVM Vs Carrier Auto Scaling Fixed Scaling Per Division 2 Offset 0 Y Axis Scale The y axis scaling determines the vertical resolution of the measurement results The scaling you select always applies to the currently active screen and the corresponding result display Usually the best way to view the results is if they fit ideally in the diagram area in order to view the complete trace This is the way the application scales the y axis if you have turned on automatic scaling But it may become necessary to see a more detailed version of the results In that case turn on fixed scaling for the y axis Fixed scaling becomes available when you turn off automatic scaling For a fixed scaling define the distance between two grid lines scaling per division and the point of origin of the y axis the offset Remote command Automatic scaling DISPlay WINDow TRACe Y SCALe AUTO on page 131 Manual scaling DISPlay WINDow TRACe Y SCALe FIXScale OFFSet on page 131 DISPlay WINDow TRACe Y SCALe FIXScale PERDiv on page 131 6 6 Using Markers The firmware application provides marker functionality to work with You can use a marker to mark specific
10. 4 6 Measuring Statistics This chapter contains information on all measurements that show the statistics of a signal LE DEET 35 Allocation El TE 36 BESTEAM DEET 37 CCDF Starts the Complementary Cumulative Distribution Function CCDF result display This result display shows the probability of an amplitude exceeding the mean power For the measurement the complete capture buffer is used The x axis represents the power relative to the measured mean power On the y axis the probability is plotted in LEE User Manual 1173 1433 02 04 35 R amp S FSV K10x LTE Uplink Measurements and Result Displays Measuring Statistics A CCDF 2 dB div Remote command CALCulate lt n gt FEED STAT CCDF TRACe DATA Allocation Summary Starts the Allocation Summary result display This result display shows the results of the measured allocations in tabular form A Allocation Summary Allocation Number s Modulation Power ID of RB J dBm 3C 10 2 69 The rows in the table represent the allocations A set of allocations form a subframe The subframes are separated by a dashed line The columns of the table contain the follwing information e Subframe Shows the subframe number e Allocation ID Shows the type ID of the allocation e Number of RB Shows the number of resource blocks assigned to the current PDSCH allocation e Offset RB Shows the resource block offset of the allocation e Modulation Shows the modu
11. 6 80 9404231343884 3 97834623871343E 06 Bit Stream For the Bit Stream result display the command returns five values and the bitstream for each line of the table lt subframe gt lt modulation gt lt of symbols bits gt lt hexadecimal binary numbers gt All values have no unit The format of the bitstream depends on Bit Stream Format The lt modulation gt is encoded For the code assignment see chapter 8 6 1 17 Return Value Codes on page 98 For symbols or bits that are not transmitted the command returns e FF if the bit stream format is Symbols e 9 if the bit stream format is Bits LSS Se SSS SSS User Manual 1173 1433 02 04 93 R amp S FSV K10x LTE Uplink Remote Commands Dee Remote Commands to Read Trace Data For symbols or bits that could not be decoded because the number of layer exceeds the number of receive antennas the command returns e FE if the bit stream format is Symbols e 8 if the bit stream format is Bits Note that the data format of the return values is always ASCII Example Bit Stream Sub Allocation Code Modulation Symbol Bit Stream ID word Index 1 1 0 03 01 02 OS 03 OO OO OO 01 02 OZ 01 O2 O1 OO OO 1 1 6 2 01 00 03 O1 1 1 32 3 03 00 03 01 02 OO O1 OO TRAC DATA TRACE1 would return 0 40 0 2 0 03 O1 02 03 03 00 00 00 O1 02 02 lt continues like this until the next data block starts or the end of data is reached
12. Auto Level softkey initiates a process that sets an ideal reference level for the current measurement For more information see Defining a Reference Level on page 41 Remote command SENSe POWer AUTO lt analyzer gt STATe on page 106 Refresh Updates the current result display in single sweep mode without capturing UO data again If you have changed any settings after a single sweep and use the Refresh function the R amp S FSV updates the current measurement results with respect to the new settings It does not capture I Q data again but uses the data captured last Remote command INITiate REFResh on page 84 5 2 General Settings 5 2 1 Defining Signal Characteristics The general signal characteristics contain settings to describe the general physical attrib utes of the signal The signal characteristics are part of the General tab of the General Settings dialog box General MIMO Advanced Trigger Spectrum Signal Characteristics Standard 3GPP LTE TDD Downl Frequency 1 8 GHz Channel Bandwidth 84 10 MHz Number of RB 50 FFT SizeN Fer 1024 Sampling Rate 15 36 MHz Cyclic Prefix Auto selecung EN ET 40 Defining the Signal e UE ET 40 Channel Bandwidth Number of Resource Dlocks 40 ucl EE 41 User Manual 1173 1433 02 04 39 R amp S FSV K10x LTE Uplink Configuring and Performing the Measurement a O ee ee ee ee ee A General Settings Selecting the LTE Mode The standard defin
13. CONFigure ETETUE UEID 1 2 22 2 ite rrt toe rt tpe ea ene tbi Ee need dede dp p 125 TRUE GER le On RE E 132 DISPlay WIND Wwsn gt FABLO EE 80 DISPlay WINDow lt n gt TRACe lt t gt Y SCALe RLEVel OFFSet esee ees 105 DISPlay WINDow TRACe Y SCALe AUTO DISPlay WINDow TRACev GCALetix cale OEtFGel rennen 131 DISPlay WINDow TRACevGCALetixGcale PDERDiVy 131 Si Ke Re D EEN 85 FETCH PEC CIDGroup RE 85 FETCH PLEG INTE 86 FETCh SUMMary CREStEAVERa gE sore ee cece iinei adierei enana aniei pieneni taadaa sasini 86 FETCh SUMMarv EVM PCHannel MANimum kaninen entn nenet 86 FETCh SUMMary EVM PCHannel MINimum eeeeesseeseeeeeenne enne rennen neret nnn ee neret rnnt s nnns 86 FETCh SUMMary EVM PCHannel AVERage FETCh SUMMary EVM PSIGnal MAXimum eseessessseeseeee enne nennen nennen nenne nennt ers en rese tnnt senes 87 FETCh SUMMary EVM PSIGnal MINimum essen enne mennrennenre nre nen eren nennen 87 FETCh SUMMary EVM PSIGnal AVERage sess 87 FE TCh SUMMarv EVM GDOPDITAVERaoelg nennen nennen ree neretnre tense teretes 87 FETCHh SUMMary EVM SDST AMERage rere dti deed hated aaia 87 FE TCh SUMMarv EVMUCCDTAVERaoel nennen nnne neren rennen nnrse nnne trennen 88 FETCh SUMMary EVM UCCH AVERage essent nennen nennen trennen nennen nenne nnne 88 FETCh SUMMary EVM USQP AVERage eese enne
14. Capture buffer after a zoom has been applied Remote command CALCulate lt n gt FEED PVT CBUF TRACe DATA Querying the subframe start offset FETCh SUMMary TFRame on page 91 4 3 Measuring the Error Vector Magnitude EVM This chapter contains information on all measurements that show the error vector mag nitude EVM of a signal The EVM is one of the most important indicators for the quality of a signal For more information on EVM calculation methods refer to chapter 3 Measurement Basics on page 17 BEVIN SUO AIS EE 26 ub ug M 27 EVM vs e re E 28 EVM vs Carrier Starts the EVM vs Carrier result display This result display shows the Error Vector Magnitude EVM of the subcarriers With the help of a marker you can use it as a debugging technique to identify any subcarriers whose EVM is too high The results are based on an average EVM that is calculated over the resource elements for each subcarrier This average subcarrier EVM is determined for each analyzed slot in the capture buffer If you analyze all slots the result display contains three traces e Average EVM This trace shows the subcarrier EVM averaged over all slots e Minimum EVM User Manual 1173 1433 02 04 26 R amp S FSV K10x LTE Uplink Measurements and Result Displays Measuring the Error Vector Magnitude EVM This trace shows the lowest average subcarrier EVM that has been found over the analyzed slots e Maximum EVM This trac
15. DISPlay WINDow lt n gt SELect This command selects the measurement window Example DISP WIND2 SEL Selects screen B Usage Event FORMat DATA lt Format gt This command specifies the data format for the data transmission between the LTE measurement application and the remote client Supported formats are ASCII or REAL32 Parameters lt Format gt ASCii REAL RST ASCii Example FORM REAL The software will send binary data in Real32 data format MMEMory LOAD DEModsetting Path This command restores previously saved demodulation settings The file must be of type allocation and depends on the link direction that was currently selected when the file was saved You can load only files with correct link directions Setting parameters Path String containing the path and name of the file Example MMEM LOAD DEM D USER Settingsfile allocation Usage Setting only e B A User Manual 1173 1433 02 04 132 R amp S FSV K10x LTE Uplink List of Commands List of Commands CAL Culate nz DEI Tamarkercmz AOEE eene en hnnen nennt nene rnnr iet rnes dtr Ennan Ennan nnn 128 CAlCulate nz D I Tamarker mz MAXimumf PDEART nnne nennen 129 CALCulate lt n gt DELTamarker lt m gt TRACe seen nnnen enn nnen sent tnnt et ent entrent nennen inna 129 CALCulate n DELTamarke
16. You can select the input source from the Source dropdown menu e RF Captures and analyzes the data from the RF input of the spectrum analyzer in use e Baseband BB Captures and analyzes the data from the baseband input of the spectrum analyzer in use e Digital UO Captures and analyzes the data from the digital baseband input of the spectrum ana lyzer in use The digital baseband input is available with option R amp S FSV B17 For more information on using hardware option R amp S FSV B17 see the manual of the R amp S FSV Remote command INPut SELect on page 110 5 4 3 Configuring the Digital UO Input The digital UO settings contain settings that configure the digital I Q input The digital UO settings are part of the Advanced Settings tab of the General Set tings dialog box General MIMO Advanced Trigger Spectrum Baseband Digital Settings Input Data Rate 10 MHz Full Scale Level 1v Sampling Rate Input Data Rate eene enean ni einn 49 ale E MP CM 50 Sampling Rate Input Data Rate Defines the data sample rate at the digital baseband input User Manual 1173 1433 02 04 49 R amp S FSV K10x LTE Uplink Configuring and Performing the Measurement DEET Configuring Uplink Signal Demodulation The sample rate is available for a digital baseband input source Remote command INPut n DIQ SRATe on page 111 Full Scale Level Defines the voltage corresponding to the maximum input value of
17. 36 101 Parameters lt Category gt A Category A B Category B RST A Example POW SEM CAT B Selects SEM category B User Manual 1173 1433 02 04 82 R amp S FSV K10x LTE Uplink Remote Commands 8 4 Remote Commands to Perform Measurements SENSe SWEep EGATe AUTO lt State gt This command turns auto gating for SEM and ACLR measurements on and off This command is available for TDD measurements in combination with an external or IF power trigger Parameters lt State gt ON Evaluates the on period of the LTE signal only OFF Evaluates the complete signal Example SWE EGAT AUTO ON Turns auto gating on Remote Commands to Perform Measurements DINU OO CN TEE 83 INTE 83 INURE RES EE 84 ZE E le acetate bt dat t a ta d a n d d kn 84 INITiate CONTinuous State This command controls the sweep mode Parameters State ON OFF ON Continuous sweep OFF Single sweep RST OFF Example INIT CONT OFF Switches the sequence to single sweep INIT CONT ON Switches the sequence to continuous sweep INITiate IMMediate This command initiates a new measurement sequence With a frame count gt 0 this means a restart of the corresponding number of measure ments In single sweep mode you can synchronize to the end of the measurement with OPC In continuous sweep mode synchronization to the end of the sweep is not possible LEE User Manual 1173 1433 02 04 83 R amp S
18. 6 1 14 Inband Emission For the Inband Emission result display the number and type of returns values depend on the parameter RETREAT RA E E I e A LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLU ULLLLLULSSXX User Manual 1173 1433 02 04 97 R amp S FSV K10x LTE Uplink Remote Commands Remote Commands to Read Trace Data e TRACE1 Returns the relative resource block indices x axis values lt RB index gt The resource block index has no unit e TRACE2 Returns one value for each resource block index relative power The unit of the relative inband emission is dB e TRACE3 Returns the data points of the upper limit line limit The unit is always dB Note that you have to select a particular subframe to get results 8 6 1 15 Power Spectrum For the Power Spectrum result display the command returns one value for each trace point lt power gt The unit is always dBm Hz The following parameters are supported e TRACE1 8 6 1 16 Spectrum Emission Mask For the SEM measurement the number and type of returns values depend on the param eter e TRACE1 Returns one value for each trace point lt absolute power gt The unit is always dBm e LIST Returns the contents of the SEM table For every frequency in the spectrum emission mask it returns 11 values lt index gt lt start frequency in Hz gt lt stop frequency in Hz gt lt RBW in Hz gt lt limit fail frequency in Hz gt lt absolute power in
19. BSTR TRACe DATA E N User Manual 1173 1433 02 04 37 R amp S FSV K10x LTE Uplink Configuring and Performing the Measurement REENEN Performing Measurements 5 Configuring and Performing the Measure ment Before you can start a measurement you have to configure the R amp S FSV in order to get valid measurement results This chapter contains detailed information on all settings available in the application You can access the two main settings dialog boxes via the Settings Gen Demod soft key Pressing the softkey once opens the General Settings dialog box The Gen label in the softkey turns orange to indicate an active General Settings dialog box Pressing the softkey again opens the Demod Settings dialog box When the Demod Settings dialog box is active the Demod label in the softkey turns orange In the General Settings dialog box you can set all parameters that are related to the overall measurement The dialog box is made up of three tabs one for general settings one for MIMO settings and one for advanced settings By default the General tab is the active one In the Demod Settings dialog box you can set up the measurement in detail e g the demodulation configuration The dialog box is made up of three tabs one for configuring the signal configuration one for setting up the frame configuration and one for configuring the control channels and miscellaneous settings By default the DL Demod ta
20. CALCulate lt n gt FEED EVM EVSU TRACe DATA User Manual 1173 1433 02 04 28 R amp S FSV K10x LTE Uplink Measurements and Result Displays Measuring the Spectrum 4 4 Measuring the Spectrum This chapter contains information on all measurements that show the power of a signal in the frequency domain In addition to the I Q measurements spectrum measurements also include two frequency sweep measurements the Spectrum Emission Mask and the Adjacent Channel Leakage Ratio e Frequency Sweep Measurements c ceceeeececceeccanceaceeeceaeceeeeeeceeeeeeeeeeeeeeeeess 29 VA Measurements eec denen etre a nti leede SEA 32 4 4 1 Frequency Sweep Measurements The Spectrum Emission Mask SEM and Adjacent Channel Leakage Ratio ACLR measurements are the only frequency sweep measurements available for the L TE mea surement application They do not use the I Q data all other measurements use Instead those measurements sweep the frequency spectrum every time you run a new mea surement Therefore it is not possible to to run an UO measurement and then view the results in the frequency sweep measurements and vice versa Also because each of the frequency sweep measurements uses different settings to obtain signal data it is not possible to run a frequency sweep measurement and view the results in another fre quency sweep measurement Frequency sweep measurements are available if RF input is selected 4 4 1 1 Available Measu
21. Gettnges 102 Advanced General SettingS cccccccceesessecceeeeeeeeeeeneeeeeceeenseeaeeeeeeeeanseeaaaeeeemennenaaes 110 Configuring Uplink Signal Demodulaton 112 Configuring Uplink DEE 114 Defining Advanced Signal Charactertetce 117 Analyzing Measurement Results eeseeseeeeeeeene enne nnn nennen nnns 125 General Commands for Result Analyse 125 Marker and Delta Marker eene nennen nennen 126 Scaling the Vertical Diagram Avis 130 Configuring the Software eeeeseeeeeeeeeeeeeeeeee nennen nennen nennen nnn nnn nnn nnn 132 List or un E TE 133 User Manual 1173 1433 02 04 5 R amp S FSV K10x LTE Uplink Introduction 1 1 1 Requirements for UMTS Long Term Evolution Introduction Currently UMTS networks worldwide are being upgraded to high speed downlink packet access HSDPA in order to increase data rate and capacity for downlink packet data In the next step high speed uplink packet access HSUPA will boost uplink performance in UMTS networks While HSDPA was introduced as a 3GPP Release 5 feature HSUPA is an important feature of 3GPP Release 6 The combination of HSDPA and HSUPA is often referred to as HSPA However even with the introduction of HSPA the evolution of UMTS has not reached its end HSPA will bring significant enhancements in 3GPP Release 7 The objective is to enhance the performance of HSPA based radio networks in terms of spectrum efficiency peak d
22. LTE Uplink Configuring and Performing the Measurement EES Defining Advanced Signal Characteristics The power of the PUSCH Ppyscy may be different in each subframe Remote command CONFigure LTE UL DRS PUCCh POWer on page 118 Group Hopping Turns group hopping for the demodulation reference signal on and off The group hopping pattern is based on 17 hopping patterns and 30 sequence shift pat terns It is generated by a pseudo random sequence generator If on PUSCH and PUCCH use the same group hopping pattern Remote command CONFigure LTE UL DRS GRPHopping on page 118 Sequence Hopping Turns sequence hopping for the uplink demodulation reference signal on and off Sequence hopping is generated by a pseudo random sequence generator Remote command CONFigure LTE UL DRS SEQHopping on page 118 Delta Sequence Shift Defines the delta sequence shift Ass The standard defines a sequence shift pattern f for the PUCCH The corresponding sequence shift pattern for the PUSCH is a function of f P C and the delta sequence shift For more information refer to 3GPP TS 36 211 chapter 5 5 1 3 Group Hopping Remote command CONFigure LTE UL DRS DSSHift on page 117 n 1 DMRS The n DMRS parameter can be found in 3GPP TS36 211 V8 5 0 5 5 2 1 1 Reference signal sequence Currently n DMRS is defined as n DMRS npygs P npygs Remote command CONFigure LTE UL DRS NDMRs on page 118 Enable
23. POWer MINimum FETCh SUMMary POWer AVERage This command queries the total power Return values lt Power gt lt numeric value gt Minimum maximum or average power depending on the last command syntax element Default unit dBm Example FETC SUMM POW Returns the total power in dBm Usage Query only FETCh SUMMary QUADerror MAXimum FETCh SUMMary QUADerror MINimum FETCh SUMMary QUADerror AVERage This command queries the quadrature error Return values lt QuadError gt lt numeric value gt Minimum maximum or average quadrature error depending on the last command syntax element Default unit deg Example FETC SUMM QUAD Returns the current mean quadrature error in degrees Usage Query only FETCh SUMMary RSTP MAXimum FETCh SUMMary RSTP MINimum Usage Query only LEES User Manual 1173 1433 02 04 90 R amp S FSV K10x LTE Uplink Remote Commands REESEN Remote Commands to Read Trace Data FETCh SUMMary SERRor MAXimum FETCh SUMMary SERRor MINimum FETCh SUMMary SERRor AVERage This command queries the sampling error Return values lt SamplingError gt lt numeric value gt Minimum maximum or average sampling error depending on the last command syntax element Default unit ppm Example FETC SUMM SERR Returns the current mean sampling error in ppm Usage Query only FETCh SUMMary TFRame This command queries the sub frame start offset as shown in t
24. an automatic reference level detection before each mea surement ONCE Performs an automatic reference level once RST ON Example POW AUTO2 ON Activate auto level for analyzer number 2 SENSe POWer AUTO lt analyzer gt TIME lt Time gt This command defines the track time for the auto level process Parameters lt Time gt lt numeric value gt RST 100 ms Default unit s Example POW AUTO TIME 200ms An auto level track time of 200 ms gets set 8 7 1 3 Configuring the Data Capture SENSe L TE FRAMe COUNL ccce ttt tentent ttt tentes tend ts oL 107 SENSe L TE FRAMe COUNEAUTO ccrte tenter tet ttt tette ttt tnde 107 SENSe L TE FRAMe COUNESTATe ecce tentent ttt 108 SEN Be SWEo EE 108 SENSe LTE FRAMe COUNt lt Subframes gt This command sets the number of frames you want to analyze Parameters lt Subframes gt lt numeric value gt RST 1 Example FRAM COUN STAT ON Activates manual input of frames to be analyzed FRAM COUN 20 Analyzes 20 frames SENSe LTE FRAMe COUNt AUTO State This command turns automatic selection of the number of frames to analyze on and off ES User Manual 1173 1433 02 04 107 R amp S FSV K10x LTE Uplink Remote Commands Remote Commands to Configure the Application Parameters lt State gt ON Selects the number of frames to analyze according to the LTE standard OFF Turns manual selection of the frame n
25. be compensated for timing error on a per symbol basis Remote command SENSe LTE UL TRACking TIME on page 113 5 6 Configuring Uplink Frames The frame configuration contains settings that define the structure of the uplink LTE sig nal You can find the frame structure in the Demod Settings dialog box 5 6 1 Configuring TDD Signals The TDD settings define the characteristics of an LTE TDD signal The TDD settings are part of the Frame Configuration tab of the Demodulation Set tings dialog box LL N User Manual 1173 1433 02 04 52 R amp S FSV K10x LTE Uplink Configuring and Performing the Measurement ee ee SS a ee es Configuring Uplink Frames UL Demod ATN UL Adv Sig Config TDD Configuration TDD UL DL Allocations Conf 0 DL S UL UL UL DL S UL UL UL Configuring TDD E em 53 Configuring TDD Frames TDD frames contain both uplink and downlink information separated in time with every subframe being responsible for either uplink or downlink transmission The standard specifies several subframe configurations or resource allocations for TDD systems TDD UL DL Allocations Selects the configuration of the subframes in a radio frame in TDD systems The UL DL configuration or allocation defines the way each subframe is used for uplink downlink or if it is a special subframe The standard specifies seven different configura tions Subframe Number and Usage U uplink D dow
26. n PRS Enables the use of the pseudo random sequence n PRS in the calculation of the demod ulation reference signal DMRS index as defined in 3GPP TS 36 211 chapter 5 5 2 1 1 If n PRS is disabled it is possible to set the cyclic shift to 0 for all subframes This parameter has to be enabled in order to generate a 3GPP compliant uplink signal 5 7 2 Configuring the Sounding Reference Signal The sounding reference signal settings contain settings that define the physical attributes and structure of the sounding reference signal EE User Manual 1173 1433 02 04 58 R amp S FSV K10x LTE Uplink Configuring and Performing the Measurement Deet Defining Advanced Signal Characteristics The sounding reference signal settings are part of the Uplink Adv Sig Config tab of the Demodulation Settings dialog box UL Demod UL Frame Config MESYE Sounding Reference Signal Present Sequence 3GPP Rel Power 0 dB SRS Subframe Conf Q SRS BW B SRS 0 Freq Dmn Pos n_RRC 0 SRS BW Conf C SRS 0 Transm Comb k TC O SRS Cyclic Shift N_CS 0 Conf Index I_SRS 0 Hopping Bw b hop 0 Eege EE 59 Peo FSM POW ET 59 SRO SHOMAME mE 59 SRS Bandwidth KE 60 Freg Domain POS M SII eec roe ra e deed eege eh eeu epar aaea 60 SRS BW Cont C SRS p 60 Transm Comb ecce EE 60 SRS Cyclo SNM o E 60 Cont ex SRS aiseria a eaaa a AE 61 Hopping BW D NOD serein iaaa de a ete eed aN AEE EE 61 Present Includes or excludes the
27. rennen neret eret nrse trennen 88 FETCh SUMMary EVM USST AVERage FEITCh SUMMary EVMEALLEMAXImUrIT soon tont tere nen rtt tu e ans ER Fh a ertt EESE EARNE 86 FETCh SUMMary EVM ALLMINIMUM Z eege cerit ert eng ene edet Perito te epe doit t feet niae 86 FETCh SUMMary EVM ALL AVERage sess nne nennen nnne rennen enne nnns 86 FETCHh SUMMary FERROF MAXimUtm iere eerte ee ee ances EE NC epe eta deen 89 FETCh SUMMary FERRor MINimuUrmi euer tno tnnt nep tune nn torte iaa PER ERR ee NENEDA E a uS 89 N User Manual 1173 1433 02 04 134 R amp S FSV K10x LTE Uplink List of Commands FETOCh SUMMarv FERRort AVERagel nnne erre nre nne tnter eren nnne 89 FE TOCh SUMMarv GlMalance MANimum nnne teet ernns enn renn nennen nennen 89 FETCh SUMMary GlMBalance MlINimum esee nnne nene nennen neret neret neret nere e teres nenne 89 FE TOCh SUMMarv GlMalancel AVEHRaoel nennen nnn etnntr inn rnt nennen nsns 89 FETCh SUMMarv IOOFfserMANimum nennen rennen erret inrer nnne 89 FETCh SUMMary IQOFfsetMINimUt neutre tnc nn nre ka EE He e SEENEN oke 89 FETCh SUMMary IQOFfset AVERage FETICh SUMMary OSTP MAXIIUIm ieu eed re edite Detto rede cte rite ede reed buon 90 FETCh SUMMarv OSTPMiNimum nennen nre nreenr etre nre erret inrer nnne nnne 90 FETCh SUMMarv POMWer MA Ximum nenne nrtnne trennen treten enne nnne nnne 90 FETChISUMMary POWher MINIImUtTi 2 cec oret pe
28. result This is only possible for single sweeps Suffix lt m gt 1 Example INIT CONT OFF Switches to single measurement mode CALC MARK2 ON Switches marker 2 INIT WAI Starts a measurement and waits for the end CALC MARK2 Y Outputs the measured value of marker 2 Usage Query only 8 8 2 2 Using Delta Markers CAL CUlate lt n DEL FamarkersmeiAOF EE 128 CALOCulate n DELTamarker m MAXimum PEAK eese nennen 129 CALCulate lt n gt MARKer lt m gt MINimum PEAK A 129 CALCulatesn gt DELTamarker Mm STATG einnig aaa a a a aa 129 CAL Culate lt n gt DEL Farm tbe TRACO mince a a a e EEE a EARE TENE 129 CAL Culate nz DEL Tamarkercmz NK 130 GALCulatesmsDELTamoarkersmostY EE 130 CALCulate lt n gt DELTamarker lt m gt AOFF This command turns all delta markers off Suffix lt m gt 1 EE User Manual 1173 1433 02 04 128 R amp S FSV K10x LTE Uplink Remote Commands a ee Analyzing Measurement Results Example CALC DELT AOFF Turns off all delta markers Usage Event CALCulate lt n gt DELTamarker lt m gt MAXimum PEAK This command positions a marker on the peak value of the trace Suffix lt m gt 1 n Example CALC DELT2 MAX Positions delta marker 2 on the trace peak Usage Event CALCulate lt n gt MARKer lt m gt MINimum PEAK This command positions a delta marker on the minimum value of the trace Suffix lt m gt 1 n Example CALC DELT2 MIN
29. sounding reference signal SRS from the test setup Remote command CONFigure LTE UL SRS STAT on page 121 SRS Rel Power Defines the power of the SRS relative to the power of the corresponding UE Pans ore The effective power level of the SRS is calculated as follows Psns Pue Pans opgeet The relative power of the SRS is applied to all subframes Remote command CONFigure LTE UL SRS POWer on page 120 SRS Subframe Conf Defines the subframe configuration of the SRS The subframe configuration of the SRS is specific to a cell The UE sends a shortened PUCCH PUSCH in these subframes regardless of whether the UE is configured to send an SRS in the corresponding subframe or not Remote command CONFigure LTE UL SRS SUConfig on page 121 User Manual 1173 1433 02 04 59 R amp S FSV K10x LTE Uplink Configuring and Performing the Measurement i ee ee ee SS H Defining Advanced Signal Characteristics SRS Bandwidth B_SRS Defines the parameter Date Bsrs is a UE specific parameter that defines the bandwidth of the SRS The SRS either spans the entire frequency bandwidth or uses frequency hopping when several narrow band SRS cover the same total bandwidth The standard defines up to four bandwidths for the SRS The most narrow SRS bandwidth Bsns 3 spans four resource blocks and is available for all channel bandwidths The other three values of Bsrs define more wideband SRS bandwidths Their availabi
30. the Advanced tab of the General Settings dialog box Positive values correspond to an attenuation and negative values correspond to an amplification RF attenuation is independent of the reference level It is available if automatic reference level detection is inactive The range is from 0 dB to 75 dB Remote command RF attenuation INPut lt n gt ATTenuation lt analyzer gt on page 105 External attenuation DISPlay WINDow lt n gt TRACe lt t gt Y SCALe RLEVel OFFSet on page 105 SS SST User Manual 1173 1433 02 04 42 R amp S FSV K10x LTE Uplink Configuring and Performing the Measurement a ee eee ee ee ee A General Settings 5 2 3 Configuring the Data Capture The data capture settings contain settings that control the amount of data and the way that the application records the LTE signal The data capture settings are part of the General tab of the General Settings dialog box MIMO Advanced Trigger Spectrum _ Data Capture Settings Capture Time 40 1 ms Overall Frame Count Num Frames to Analyze 1 Auto Acc to Standard s Capture TME E 43 Wera Famo COU ET 43 Number of Frames to Analyze eiie eise ieeckkesa senden e ku uada itera ka s arn aora cd 43 Auto According to Sfarndald EE 44 Capture Time Defines the capture time The capture time corresponds to the time of one sweep Hence it defines the amount of data the application captures during one sweep By defa
31. the digital baseband input Remote command INPut lt n gt DIQ RANGe UPPer on page 111 5 5 Configuring Uplink Signal Demodulation The uplink demodulation settings contain settings that describe the signal processing and the way the signal is measured You can find the demodulation settings in the Demod Settings dialog box 5 5 1 Configuring the Data Analysis The data analysis settings contain setting that control the data analysis The data analysis settings are part of the Uplink Demodulation Settings tab of the Demodulation Settings dialog box ISS UL Frame Config UL Adv Sig Config Data Analysis Channel Est Range Pilot and Payload Compensate DC Offset Coded Bits Scrambling Auto Demodulation v4 Supprssd Interf Sync Ghannel Es imalon e iui et ei eh od ra Hee has ce rti ra cod IE Tee Resa DE RR uad 50 Compensate DC OMSET EE 50 Elle Ol CORSI DiS Cm 51 Auto ID nee EE 51 Suppressed Interference Synchronization sse 51 Channel Estimation Range Selects the method for channel estimation You can select if only the pilot symbols are used to perform channel estimation or if both pilot and payload carriers are used Remote command SENSe LTE UL DEMod CESTimation on page 113 Compensate DC Offset Turns DC offset compensation when calculating measurement results on and off User Manual 1173 1433 02 04 50 R amp S FSV K10x LTE Uplink Configu
32. the numeric values 9 9E37 or 9 9E37 e NAN Not a number Represents the numeric value 9 91E37 NAN is returned in case of errors Boolean Boolean parameters represent two states The ON state logically true is represented by ON or a numeric value 1 The OFF state logically untrue is represented by OFF or the numeric value 0 Querying boolean parameters When you query boolean parameters the system returns either the value 1 ON or the value 0 OFF Example Setting DISPlay WINDow ZOOM STATe ON Query DISPlay WINDow ZOOM STATe would return 1 Character Data Character data follows the syntactic rules of keywords You can enter text using a short or a long form For more information see chapter 8 2 2 Long and Short Form on page 76 Querying text parameters When you query text parameters the system returns its short form EE User Manual 1173 1433 02 04 78 R amp S FSV K10x LTE Uplink Remote Commands SSS SSS SS SS SESE a s 8 2 6 4 8 2 6 5 8 3 8 3 1 Selecting and Configuring Measurements Example Setting SENSe BANDwidth RESolution TYPE NORMal Query SENSe BANDwidth RESolution TYPE would return NORM Character Strings Strings are alphanumeric characters They have to be in straight quotation marks You can use a single quotation mark or a double quotation mark Example INSTRument DELete Spectrum Block Data Block data is
33. the second TX channel SENSe POWer ACHannel SPACing CHANnel Distance This command defines the distance between the first and the second TX channel for ACLR measurements _L___SS_ S e e E User Manual 1173 1433 02 04 81 R amp S FSV K10x LTE Uplink Remote Commands a rn i ee ee i Selecting and Configuring Measurements Before you can use the command you have to select two TX channels for the ACLR measurement with SENSe POWer ACHannel TXCHannels COUNt on page 82 Parameters lt Distance gt Distance from the center of the first TX channel to the center of the second TX channel in Hz Example POW ACH TXCH COUN 2 POW ACH SPAC CHAN 10MHZ Defines a channel spacing of 10 MHz SENSe POWer ACHannel TXCHannels COUNt lt TXChannels gt This command selects the number of transmission TX channels in ACLR measure ments Parameters lt TXChannels gt Number of transmission channels 1 One TX channel is analyzed in ACLR measurements 2 Two TX channels are analyzed in ACLR measurements Example POW ACH TXCH COUN 2 Selects two TX channels for the ACLR measurement SENSe POWer NCORrection lt State gt This command turns noise correction for ACLR measurements on and off Parameters lt State gt ON OFF RST OFF Example POW NCOR ON Activates noise correction SENSe POWer SEM CATegory lt Category gt This command selects the SEM limit category as defined in 3GPP TS
34. 0 40 0 2 32 03 03 00 00 03 O1 02 00 O1 00 8 6 1 4 Capture Buffer For the Capture Buffer result display the command returns one value for each UO sample in the capture buffer lt absolute power gt The unit is always dBm The following parameters are supported e TRACE1 8 6 1 5 CCDF For the CCDF result display the type of return values depends on the parameter e TRACE1 Returns the probability values y axis lt of values gt lt probability gt The unit is always The first value that is returned is the number of the following values e TRACE2 Returns the corresponding power levels x axis lt of values gt lt relative power gt The unit is always dB The first value that is returned is the number of the following values LSS Se e A LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLUU LLISAS User Manual 1173 1433 02 04 94 R amp S FSV K10x LTE Uplink Remote Commands D E Remote Commands to Read Trace Data 8 6 1 6 Channel Flatness For the Channel Flatness result display the command returns one value for each trace point lt relative power gt The unit is always dB The following parameters are supported e TRACE1 Returns the average power over all subframes e TRACE2 Returns the minimum power found over all subframes If you are analyzing a partic ular subframe it returns nothing e TRACE3 Returns the maximum power found over all subframes If you are analyzing a partic
35. 0100101011110010 111011100000011100111010010011110101110101000100 100001100111000010111101101100110100001110111100 001111111110000011110111110001011100110010000010 HE oH D WD 5 o0 UO Fig 6 2 Bit stream display in uplink application if the bit stream format is set to bits Remote command UNIT BSTR On page 125 6 4 Selecting the Contents of a Constellation Diagram The Evaluation Filter dialog box contains settings to configure the contents of a con stellation diagram You can access the dialog box with the Constellation Selection softkey in the Mea surement menu Evaluation Range for the Constellation Diagram The Evaluation Range dialog box defines the type of constellation points that are dis played in the Constellation Diagram By default the R amp S FSV displays all constellation points of the data that have been eval uated However you can filter the results by several aspects e Modulation Filters the results to include only the selected type of modulation e Allocation Filters the results to include only a particular type of allocation e Symbol Filters the results to include only a particular OFDM symbol e Carrier Filters the results to include only a particular subcarrier The result display is updated as soon as you make the changes Note that the constellation selection is applied to all windows in split screen mode if the windows contain constellation diagrams User Manual 1173 1433 02
36. 36 300 E UTRA and E UTRAN Overall Description Stage 2 Release 8 5 3GPP TS 22 978 All IP Network AIPN feasibility study Release 7 6 3GPP TS 25 213 Spreading and modulation FDD 7 Speth M Fechtel S Fock G and Meyr H Optimum Receiver Design for Wireless Broad Band Systems Using OFDM Part IEEE Trans on Commun Vol 47 1999 No 11 pp 1668 1677 8 Speth M Fechtel S Fock G and Meyr H Optimum Receiver Design for OFDM Based Broadband Transmission Part Il A Case Study IEEE Trans on Commun Vol 49 2001 No 4 pp 571 578 LEE User Manual 1173 1433 02 04 13 R amp S FSV K10x LTE Uplink Welcome Installing the Software 2 Welcome The EUTRA LTE software application makes use of the UO capture functionality of the following spectrum and signal analyzers to enable EUTRA LTE TX measurements con forming to the EUTRA specification e R amp S FSV This manual contains all information necessary to configure perform and analyze such measurements e Installing the Somware ssc rete eter eire bore eh ru eee ee 14 e Application Cverview nennen etre nnn nn nnn nente nennt nnn 14 EE o Pc 16 2 1 Installing the Software For information on the installation procedure see the release notes of the R amp S FSV 2 2 Application Overview Starting the application Access the application via the Mode menu gt Press the MODE key and select LTE Note tha
37. APR adopt auaritia rad Ro adr 110 SENSe SWAPiq State This command turns a swap of the and Q branches on and off Parameters State ON OFF RST OFF Example SWAP ON Turns a swap of the and Q branches on Controlling the Input For information on the remote commands for reference level and attenuation settings see chapter 8 7 1 2 Configuring the Input Level on page 104 URES EES LOCI RP 110 TRACIO FIL Tet te 111 INPut SELect lt Source gt This command selects the signal source User Manual 1173 1433 02 04 110 R amp S FSV K10x LTE Uplink Remote Commands Remote Commands to Configure the Application Parameters lt Source gt RF Selects the RF input as the signal source AIQ Selects the analog baseband input as the data source This source is available only with option R amp S FSV B71 DIQ Selects the digital baseband input as the data source This source is available only with option R amp S FSV B17 Example INP DIQ Selects the digital baseband input TRACe IQ FILTer FLATness lt FilterType gt This command turns the wideband filter on and off Parameters lt FilterType gt NORMal Uses the normal filter WIDE Turns the wideband filter on RST NORMal Example TRAC 1IQ FILT FLAT WIDE Turns the wideband filter on 8 7 2 3 Configuring the Digital UO Input INPuten DIO SRAM dee BAD A Greate ree HAAN ner e e ERN eis 111 EIST Klee EE 111 INPut lt n gt DIQ SR
38. ATe lt SampleRate gt This command defines the sampling rate for a digital UO signal source Parameters lt SampleRate gt RST 10 MHz Default unit Hz Example INP DIQ SRAT 10MHZ Defines a sampling rate of 10 MHz INPut lt n gt DIQ RANGe UPPer lt ScaleLevel gt This command defines the full scale level for a digital UO signal source Parameters lt ScaleLevel gt RST 1V Default unit V lM User Manual 1173 1433 02 04 111 R amp S FSV K10x LTE Uplink Remote Commands Remote Commands to Configure the Application Example INP DIQ RANG 0 7 Sets the full scale level to 0 7 V 8 7 3 Configuring Uplink Signal Demodulation 8 7 3 1 Configuring the Data Analysis SENSeJ L TE UL DEMOd AUTO ececceeet tette tenente tet tet tete ttt testa 112 SENSeIEETEEULE DEMod ee ale e DEE 112 SENSe EETEEUL DEMod CDGOOffsel 2 e eet eet aeaaea aaa unn nnne nn cae 112 SENSeIEETEFUL DEMod CES Re uii reete AER 113 ISENSeILTEIUL DEMod Slgne tette tette teta 113 SENSe L TE UL DEMod AUTO lt State gt This command turns automatic demodulation for uplink signals on and off Parameters State ON OFF RST ON Example UL DEM AUTO OFF Deactivates automatic demodulation SENSe LTE UL DEMod CBSCrambling State This command turns scrambling of coded bits for uplink signals on and off Parameters State ON OFF RST ON Example UL DEM CBSC OFF Deactivates t
39. CONFigure LTE UL SFNO on page 116 Enable PUCCH CONFigure LTE UL SUBFramecsubframe ALLoc CONT on page 117 Modulation CONFigure LTE UL SUBFrame lt subframe gt ALLoc MODulation on page 117 Number of RB CONFigure LTE UL SUBFrame lt subframe gt ALLoc RBCount on page 116 Offset RB CONFigure LTE UL SUBFrame lt subframe gt ALLoc RBOFfset on page 116 5 7 Defining Advanced Signal Characteristics The uplink advanced signal characteristics contain settings that describe the detailed structure of a uplink LTE signal You can find the advanced signal characteristics in the Demod Settings dialog box 5 7 1 Configuring the Demodulation Reference Signal The demodulation reference signal settings contain settings that define the physical attributes and structure of the demodulation reference signal This reference signal helps to demodulate the PUSCH The demodulation reference signal settings are part of the Uplink Adv Sig Config tab of the Demodulation Settings dialog box E E User Manual 1173 1433 02 04 56 R amp S FSV K10x LTE Uplink Configuring and Performing the Measurement Ich Defining Advanced Signal Characteristics UL Demod UL Frame Config UWRF ae Demodulation Reference Signal Sequence 3GPP Rel Power PUSCH 0 dB Rel Power PUCCH 0 dB Group Hopping Sequence Hopping Delta Sequence Shift 0 n_DMRS 0 Enable n PRS Fi rus EE 57 Relative P
40. Configuring Measurements SENSE POWE erer ME 82 SENSE POW er SEM CATEGO TE 82 SENSe SWEep EGATC AUTO 83 SENSe POWer ACHannel AACHannel lt Channel gt This command selects the assumed adjacent channel carrier for ACLR measurements Parameters lt Channel gt EUTRA Selects an EUTRA signal of the same bandwidth like the TX chan nel as assumed adjacent channel carrier UTRA128 Selects an UTRA signal with a bandwidth of 1 28MHz as assumed adjacent channel carrier UTRA384 Selects an UTRA signal with a bandwidth of 3 84MHz as assumed adjacent channel carrier UTRA768 Selects an UTRA signal with a bandwidth of 7 68MHz as assumed adjacent channel carrier RST EUTRA Example POW ACH AACH UTRA384 Selects an UTRA signal with a bandwidth of 3 84MHz as assumed adjacent channel carrier SENSe POWer ACHannel BANDwidth CHANnel2 Bandwidth This command defines the channel bandwidth of the second TX channel in ACLR meas urements Before you can use the command you have to select two TX channels for the ACLR measurement with SENSe POWer ACHannel TXCHannels COUNt on page 82 Note that you have to add a suffix with the value 2 at the CHANnel syntax element Parameters Bandwidth Bandwidth of the second TX channel in Hz Supported LTE bandwidths are listed in the description of CONFigure LTE UL BW on page 103 Example POW ACH TXCH COUN 2 POW ACH BAND CHAN2 BW15 00 Defines a bandwidth of 15 MHz for
41. Extended cyclic prefix length AUTO Automatic cyclic prefix length detection RST AUTO Example CONF UL CYCP EXT Sets cyclic prefix type to extended CONFigure LTE UL NORB lt ResourceBlocks gt This command selects the number of resource blocks for uplink signals Parameters ResourceBlocks lt numeric value RST 50 Example CONF UL NORB 25 Sets the number of resource blocks to 25 SENSe FREQuency CENTer Frequency This command sets the center frequency for RF measurements Parameters Frequency numeric value Range fmin to fmax RST 1 GHz Default unit Hz Example FREQ CENT 2GHZ Set the center frequency to 2 GHz Configuring the Input Level CONFloure POWerENbeched IO analvzerz nennen 105 CONFloure POWerENbeched RE analyzerz nennen enn 105 DISPlay WINDow lt n gt TRACe lt t gt Y SCALe RLEVel OFFSet 0 cceecceceeeeeeeeeeeeeeaaeeees 105 INbPutonz ATTenuation analyzerz ener eh nennen nsns ennt innen 105 liz re gm TT E ES 106 le resize EATIS TATO E 106 leie ag AUTO EE 106 SENSe POWer AUTO analyzer STATe cessere nennen nene 106 SENSeE POWer AUTO analyzer UE 107 User Manual 1173 1433 02 04 104 R amp S FSV K10x LTE Uplink Remote Commands a a ee Remote Commands to Configure the Application CONFigure POWer EXPected IQ analyzer lt RefLevel gt This command defines the reference level when the input sou
42. F UL SRS SUC 4 Sets SRS subframe configuration to 4 CONFigure LTE UL SRS TRComb lt TransComb gt This command defines the transmission comb kc Parameters lt TransComb gt lt numeric value gt RST 0 Example CONF UL SRS TRC 1 Sets transmission comb to 1 8 7 5 3 Defining the PUSCH Structure CONFiISurer L TEEBEIPUSChIEBNMYOdGG 1 treo rette rhe detener eadem entr p Enter 121 CONFigurep E TEEULSPUSCHhIFHONFfS6l 1 2 nico nen be tee terree et eee acto ta 122 GONFigureD EE EREECHEN eege 122 CONFIGURE EE 1 Ey UL e eR 122 CONFigure LTE UL PUSCh FHMode lt HoppingMode gt This command selects the frequency hopping mode in the PUSCH structure User Manual 1173 1433 02 04 121 R amp S FSV K10x LTE Uplink Remote Commands a U O a a a t Remote Commands to Configure the Application Parameters lt HoppingMode gt NONE No hopping INTer Inter subframe hopping INTRa Intra subframe hopping RST NONE Example CONF UL PUSC FHM NONE Deactivates frequency hopping for the PUSCH CONFigure LTE UL PUSCh FHOFfset lt Offset gt This command defines the frequency hopping offset for the PUSCH Parameters lt Offset gt lt numeric value gt RST 4 Example CONF UL PUSC FHOF 5 Sets the hopping offset to 5 CONFigure L TE UL PUSCh FHOP IIHB lt HBInfo gt This command defines the information in hopping bits of the PUSCH Parameters lt HBInfo gt lt numeric value gt Range 0 t
43. FSV K10x LTE Uplink Remote Commands 8 5 Remote Commands to Read Numeric Results Example INIT Initiates a new measurement Usage Event INITiate REFResh This command updates the current UO measurement results to reflect the current mea surement settings No new UO data is captured Thus measurement settings apply to the UO data currently in the capture buffer The command applies exclusively to UO measurements It requires UO data Example INIT REFR The application updates the IQ results Usage Event SENSe SYNC STATe This command queries the current synchronization state Return values State The string contains the following information A zero represents a failure and a one represents a successful synchronization Example SYNC STAT Would return e g 1 for successful synchronization Usage Query only Remote Commands to Read Numeric Results LS RENE d fM UE 85 FETORPLO CIDG e 85 FETCEPEC PLDT Ce 86 FETCESUMMay C RESIBDAVERage 2 1 rtt hcc u Ie epe te exu amaz czaz eve vant ed dar aeaa te 86 FETCh SUMMary EVMEAEEEMAXIIUmI oiiieir erecto ENER ERENNERT AEN 86 PETCH SUMMary EV RER Te E 86 FETCHSUMMarnsEVMEAEL FAV BRAGG ciis a aaa A a a 86 FETCHSUMMary EVM PCHannel MAXIMUM siccin niaaa 86 FET CK SUMMar EVM PCHannel MINIMUM ee A nnii iaaiiai ai a 86 FETCh SUMMary EVM PCHannel AVERage csse eene hene enne nenas 86 FETCh SUMMany EVM PSIOnaEMAXImutm 2 2 pena
44. Hannel AVERage on page 86 e EVM Phys Signal Shows the EVM for all physical signal resource elements in the analyzed frame FETCh SUMMary EVM PSIGnal AVERage on page 87 e Frequency Error Shows the difference in the measured center frequency and the reference center frequency FETCh SUMMary FERRor AVERage on page 89 e Sampling Error Shows the difference in measured symbol clock and reference symbol clock relative to the system sampling rate FETCh SUMMary SERRor AVERage on page 91 e UO Offset Shows the power at spectral line O normalized to the total transmitted power FETCh SUMMary IQOFfset AVERage on page 89 User Manual 1173 1433 02 04 24 R amp S FSV K10x LTE Uplink Measurements and Result Displays Measuring the Power Over Time e Q Gain Imbalance Shows the logarithm of the gain ratio of the Q channel to the I channel FETCh SUMMary GIMBalance AVERage on page 89 e HO Quadrature Error Shows the measure of the phase angle between Q channel and I channel deviating from the ideal 90 degrees FETCh SUMMary QUADerror AVERage on page 90 e Power Shows the average time domain power of the analyzed signal FETCh SUMMary POWer AVERage on page 90 e Crest Factor Shows the peak to average power ratio of captured signal FETCh SUMMary CRESt AVERage on page 86 4 2 Measuring the Power Over Time This chapter cont
45. MMary FERRor MAXimum FETCh SUMMary FERRor MINimum FETCh SUMMary FERRor AVERage This command queries the frequency error Return values lt FreqgError gt lt numeric value gt Minimum maximum or average frequency error depending on the last command syntax element Default unit Hz Example FETC SUMM FERR Returns the average frequency error in Hz Usage Query only FETCh SUMMary GIMBalance MAXimum FETCh SUMMary GIMBalance MINimum FETCh SUMMary GIMBalance AVERage This command queries the UO gain imbalance Return values lt Gainlmbalance gt lt numeric value gt Minimum maximum or average UO imbalance depending on the last command syntax element Default unit dB Example FETC SUMM GIMB Returns the current gain imbalance in dB Usage Query only FETCh SUMMary IQOFfset MAXimum FETCh SUMMary IQOFfset MINimum FETCh SUMMary IQOFfset AVERage This command queries the UO offset Return values lt lQOffset gt lt numeric value gt Minimum maximum or average l Q offset depending on the last command syntax element Default unit dB E N User Manual 1173 1433 02 04 89 R amp S FSV K10x LTE Uplink Remote Commands REESEN Remote Commands to Read Numeric Results Example FETC SUMM IQOF Returns the current IQ offset in dB Usage Query only FETCh SUMMary OSTP MAXimum FETCh SUMMary OSTP MINimum Usage Query only FETCh SUMMary POWer MAXimum FETCh SUMMary
46. ONF UL SUBF8 ALL POW 1 3 Sets the power of the allocation in subframe 8 to 1 3 dB CONFigure LTE UL SUBFrame lt subframe gt ALLoc CONT lt Content gt This command allocates a PUCCH to an uplink allocation Parameters lt Content gt NONE Turns off the PUSCH and the PUCCH PUCCh Turns on the PUCCH RST PUSC Example CONF UL SUBF8 ALL CONT PUCC Subframe 8 contains a PUCCH CONFigure LTE UL SUBFrame lt subframe gt ALLoc MODulation lt Modulation gt This command selects the modulation of an uplink allocation Parameters lt Modulation gt QPSK QAM16 QAM64 RST QPSK Example CONF UL SUBF8 ALL MOD QPSK The modulation of the allocation in subframe 8 is QPSK 8 7 5 Defining Advanced Signal Characteristics 8 7 5 4 Configuring the Demodulation Reference Signal CONFigurelil TEUL DRS DIE eege Ree prp rrt EEN 117 GONFigurerETEEUL IDRS GRPEOBDIBg dee gedd ENEE 118 CONFigure E TELULIDRS NDMRS 1 iiit ei reae ee tee ere eR aka ect eg 118 GONEIgureEETEEULIDRS PUCCDIPONMBE terunt crunt e En ee pe DER PE BR eau RE ERR NEE 118 CONFigure L TEJ UL DRS PUSCh POWer eccentric 118 Ee Lee E EIER EE 118 CONFigure LTE UL DRS DSSHift Shift This command selects the delta sequence shift of the uplink signal Parameters lt Shift gt lt numeric value gt RST 0 ES User Manual 1173 1433 02 04 117 R amp S FSV K10x LTE Uplink Remote Commands a es 8 Remote Commands to Configur
47. ORMat Format This command selects the PUCCH format Note that formats 2a and 2b are available for normal cyclic prefix length only Parameters Format F1 F1 F1A F1a F1B F1b F2 F2 F2A F2a F2B F2b F3 F3 RST F1N User Manual 1173 1433 02 04 123 R amp S FSV K10x LTE Uplink Remote Commands DEE Remote Commands to Configure the Application Example CONF UL PUCC FORM FIN Sets the PUCCH format to F1 normal CONFigure LTE UL PUCCh N1CS lt Nics gt This command defines the N 1 _cs of the PUCCH Parameters lt N1cs gt lt numeric value gt RST 6 Example CONF UL PUCC N1CS 4 Sets N 1 cs to 4 CONFigure LTE UL PUCCh N2RB lt N2RB gt This command defines the N 2 RB of the PUCCH Parameters lt N2RB gt lt numeric value gt RST 1 Example CONF UL PUCC N2RB 2 Sets N2 RB to 2 CONFigure L TE UL PUCCh NORB lt ResourceBlocks gt This command selects the number of resource blocks for the PUCCH Parameters ResourceBlocks numeric value RST 0 Example CONF UL PUCC NORB 6 Sets the number of resource blocks to 6 CONFigure LTE UL PUCCh NPAR lt NPUCCH gt This command defines the N PUCCH parameter in the PUCCH structure settings Parameters lt NPUCCH gt lt numeric value gt lt numeric value gt SUBF Selects the definition of N PUCCH on subframe level RST 0 Example CONF UL PUCC NPAR 2 Sets N PUCCH to 2 e
48. Positions delta marker 2 on the trace minimum Usage Event CALCulate lt n gt DELTamarker lt m gt STATe State This command turns delta markers on and off Suffix m 1 Parameters State ON OFF RST OFF Example CALC DELT3 ON Turns on delta marker 3 CALCulate lt n gt DELTamarker lt m gt TRACe Trace This command positions a delta marker on a particular trace Suffix m 1 Parameters Trace 11213 Number of the trace you want the delta marker positioned on N User Manual 1173 1433 02 04 129 R amp S FSV K10x LTE Uplink Remote Commands Deg 8 8 3 Analyzing Measurement Results CALCulate lt n gt DELTamarker lt m gt X Position This command positions a delta marker on a particular coordinate on the x axis If necessary the command first turns on the delta marker Suffix lt m gt 1 Parameters lt Position gt Numeric value that defines the delta marker position on the x axis Default unit The unit depends on the result display Example CALC DELT2 X 1GHZ Positions delta marker 2 on the frequency of 1 GHz CALCulate lt n gt DELTamarker lt m gt Y This command queries the position of a delta marker on the y axis If necessary the command activates the delta marker first To get a valid result you have to perform a complete measurement with synchronization to the end of the measurement before reading out the result This is only possible for single swe
49. Quence IFPower HOLDoff Offset This command defines the holding time before the next trigger event Note that this command is available for any trigger source not just IF Power Parameters Offset Range 150 ns to 10s RST 150 ns Default unit s Example TRIG IFP HOLD 1 Defines a holdoff of 1 second TRIGger SEQuence IFPower HYSTeresis lt Hysteresis gt This command defines the trigger hysteresis Parameters lt Hysteresis gt Range 3 to 50 RST 3 Default unit dB Example TRIG IFP HYST 10 Defines a trigger hysteresis of 10 dB TRIGger SEQuence LEVel lt analyzer gt POWer lt Level gt This command defines the trigger level for an IF power trigger Parameters lt Level gt Default unit DBM Example TRIG LEV POW 10 Defines a trigger level of 10 dBm TRIGger SEQuence MODE lt Source gt This command selects the trigger source E M User Manual 1173 1433 02 04 109 R amp S FSV K10x LTE Uplink Remote Commands 8 7 2 8 7 2 1 8 7 2 2 Remote Commands to Configure the Application Parameters lt Source gt EXTernal Selects external trigger source IFPower Selects the IF power trigger source IMMediate Selects free run trigger source PSEN Selects power sensor trigger source RFPower Selects RF power trigger source RST IMMediate Example TRIG MODE EXT Selects an external trigger source Advanced General Settings Controlling UO Data ISENS
50. R amp S9FSV K10x LTE Uplink LTE Uplink Measurement Application User Manual i E Ain Pts Snstellation Diagram T Points E 1173 1433 02 04 Test amp Measurement ROHDE amp SCHWARZ User Manual This manual describes the following firmware applications e R amp S FSV K101 EUTRA LTE FDD Uplink Measurement Application 1310 9100 02 e R amp SGFSV K105 EUTRA LTE TDD Uplink Measurement Application 1310 9780 02 This manual is applicable for the following analyzer models with firmware version 2 0 and higher e R amp SGFSV 3 1307 9002K03 e R amp SGFSV 7 1307 9002K07 e R amp SGFSV 13 1307 9002K13 e R amp SGFSV 30 1307 9002K30 e R amp SGFSV 40 1307 9002K40 2013 Rohde amp Schwarz GmbH amp Co KG M hldorfstr 15 81671 M nchen Germany Phone 49 89 41 29 0 Fax 49 89 41 29 12 164 E mail info rohde schwarz com Internet www rohde schwarz com Printed in Germany Subject to change Data without tolerance limits is not binding R amp S is a registered trademark of Rohde amp Schwarz GmbH amp Co KG Trade names are trademarks of the owners The following abbreviations are used throughout this manual R amp S FSV is abbreviated as R amp S FSV R amp S FSV K10x LTE Uplink Contents Contents M Peer 7 1 4 Requirements for UMTS Long Term Evolution enne 7 1 2 Long Term Evolution Uplink Transmission S
51. S vom M 112 SENSe ETEJFUL DEMod CBSCrambling trae prt tege recen e eie i pr D D dedi nud 112 IGENGelt LTE UL DEMod CDtCoftset nen rennen nennen enne enr ener 112 SENSe ETEEUL DEMOG CESTirnatiohi 2 2 2 iret crees et erui teet een cpu one cec eigen Dee ueiduegere 113 SENSe ETETEUL DEMOG SIS dE SENSe LTE UL TRACking PHASe SENSe LTE UL TRACKING TIME R amp S FSV K10x LTE Uplink Index A l ACER E Identity Physical Layer eeeeen 54 Allocation summary S Inband emission a ss Auto Demodulation sseese Input ele Auto Detection Cell Identity seeessssssse 54 e B K Bit Strain iriiria npe n eerie nde 37 Key MER Aviat gie 69 C M Capture buffer 2 rare dehet dedos 25 Capture Time 43 Marker ZOOM susirasi de e Dedi ee s 71 CCDF 95 Measurement Cell ID 54 ACUR d 9 30 Cell Identity Group ES 54 allocation summary 96 Channel Bandwidth 40 bit stream 97 Channel Estimation Range 50 capture buffer iss 25 Channel flatness Si 33 CHE nene ae SCH Channel flatness difference 34 channel flatness sin OS Channel flatness group delay 33 channel flatness diffe
52. Spectrum allocation Operation in paired frequency division duplex FDD mode and unpaired spectrum time division duplex TDD mode is possible e Co existence Co existence in the same geographical area and co location with GERAN UTRAN shall be ensured Also co existence between operators in adjacent bands as well as cross border co existence is a requirement e Quality of Service End to end quality of service QoS shall be supported VoIP should be supported with at least as good radio and backhaul efficiency and latency as voice traffic over the UMTS circuit switched networks e Network synchronization Time synchronization of different network sites shall not be mandated User Manual 1173 1433 02 04 8 R amp S FSV K10x LTE Uplink Introduction Long Term Evolution Uplink Transmission Scheme 1 2 Long Term Evolution Uplink Transmission Scheme 1 2 1 SC FDMA During the study item phase of LTE alternatives for the optimum uplink transmission scheme were investigated While OFDMA is seen optimum to fulfil the LTE requirements in downlink OFDMA properties are less favourable for the uplink This is mainly due to weaker peak to average power ratio PAPR properties of an OFDMA signal resulting in worse uplink coverage Thus the LTE uplink transmission scheme for FDD and TDD mode is based on SCFDMA with a cyclic prefix SC FDMA signals have better PAPR properties compared to an OFDMA signal This was one of the main reaso
53. Turns noise correction on and off For more information see the manual of the R amp S FSV Note that the input attenuator makes a clicking noise after each sweep if you are using the noise correction in combination with the auto leveling process Remote command SENSe POWer NCORrection on page 82 Sweep Time Defines a sweep time for ACLR measurements A longer sweep time may increase the probability that the measured value converges to the true value of the adjacent channel power but obviously increases measurement time N User Manual 1173 1433 02 04 47 R amp S FSV K10x LTE Uplink Configuring and Performing the Measurement a NM AN C eS ee ee M Advanced General Settings Number of TX Channels Defines the number of transmission TX channels to include in ACLR measurements Measurements on one or two TX channels are supported For measurements on two TX channels you can additionally define the bandwidth of the second TX channel and the distance between the two TX channels For the second TX channel you can select the bandwidths as defined by 3GPP For more information see Channel Bandwidth Number of Resource Blocks on page 40 Remote command SENSe POWer ACHannel BANDwidth CHANnel2 on page 81 SENSe POWer ACHannel SPACing CHANnel on page 81 SENSe POWer ACHannel TXCHannels COUNt on page 82 5 4 Advanced General Settings The Advanced settings contain parameters to configure mo
54. U AER SSS User Manual 1173 1433 02 04 133 R amp S FSV K10x LTE Uplink List of Commands CONFigure ETEFUL PUSCh FHOP IIEIB nii rte rre teet teretes 122 CONFigure ETEEUIEPUSCRHINOSM nititur Pr tetti eee aid eene eerte eie rete meret eet eit 122 CONFigure ETETULIS e DEE 116 CONFigurs ETE UL SRS BEP e tea t cete n een tpe t e eet enc Ln end od 119 CONFigure LTE UL SRS BSRS CONFigure LTE UL SRS CSRS CONFigure LTE UL SRS CYCS CONFigure ETETFUESRS ISRS 2 our toa ne o pd ta tren eere etia tg dece d d El te UR EN RTE 120 CONFiourelLTELUL SbRG POwWer EA 120 CONFigure ETEEULESRS STAT riii ege deter ee Ee ge Ete etri ed eire bcd ded ea ee Ee SS 121 CONFigure ETETUE SRS e e ME 121 CONFigure ETETULESRS TRGCORID irit tt rt tree ca Ye tr e Y e d as Ve deed d 121 CONFigure L TE UL SUBFrame ssubframe ALLOoc CONT esesssseeeeeeeeeeeeeenneenee nennen nennen 117 CONFiourell TETUL SGUBkrame subtframez AL LocMOtDulaton nennen 117 CONFigure LTE UL SUBFrame lt subframe gt ALLoc POWer CONFigure LTE UL SUBFramessubframe ALLoc RBOCount sse 116 CONFigure L TETUL GUBFrame subtramez Al LochRpGOFtset cece eee cess see eseeeeeeteeeseseeseeeneees 116 CONFigure ETETFUETDD SPSO o dt eee Selig raid xe Cae Bee RC aH EE aan 114 CONFigure ETETULE TDBD U D Gohl cess ccacencedisniestenccncenit ea patre rete apnea cundenadatandustassieudubenaabdasdabis 114
55. Usage Query only FETCh PLC PLID This command queries the cell identity that has been detected Return values lt Identity gt The command returns 1 if no valid result has been detected yet Range 0 to 2 Example FETC PLC PLID Returns the current cell identity Usage Query only FETCh SUMMary CRESt AVERage This command queries the average crest factor as shown in the result summary Return values lt CrestFactor gt lt numeric value gt Crest Factor in dB Example FETC SUMM CRES Returns the current crest factor in dB Usage Query only FETCh SUMMary EVM ALL MAXimum FETCh SUMMary EVM ALL MINimum FETCh SUMMary EVM ALL AVERage This command queries the EVM of all resource elements Return values lt EVM gt lt numeric value gt Minimum maximum or average EVM depending on the last com mand syntax element The unit is or dB depending on your selection Example FETC SUMM EVM Returns the mean value Usage Query only FETCh SUMMary EVM PCHannel MAXimum FETCh SUMMary EVM PCHannel MINimum FETCh SUMMary EVM PCHannel AVERage This command queries the EVM of all physical channel resource elements LLL EI e e e LLLLLLLL LL L LLLX User Manual 1173 1433 02 04 86 R amp S FSV K10x LTE Uplink Remote Commands PO Remote Commands to Read Numeric Results Return values lt EVM gt lt numeric value gt Minimum maximum or average EVM de
56. YMDOl gek cin no caua ee terti SEENEN AE Lo nea eh Info in Hopping Bits sese 62 External Attenuation essen 42 Number of Subbands sese 62 F PUSCH Hopping Offset 0 eee cece cece ee ete 62 R Frame Number Offset 00 cc ceeceesseeeeeeeeeeeseeeeneeeeaaes 55 Frequency S Reference Level cccccccccecceeeeeeceeteeecceeseeeteeeneeeeeeeees 41 Full Scale Eevel 5 eerie riri tent 50 Reference signal PUSCH PUCCH eiue tenete c eege 56 H Remote commands Basics On SYNTAX iai eed ere tet rede aere 74 Header Table ooi sa dtes cha a eosin Se vo Fee ea Pee Me pre 15 Boolean values ceece emm 78 User Manual 1173 1433 02 04 137 R amp S FSV K10x LTE Uplink Index Capitalization 2 eret entire tet 76 Character data iners 78 Data blocks Numeric valt s rrr teorie tne 77 Optional keywordS sssessssessessesessnneeseeesrrrnnsrseserrens 76 Parameters e Ile EE SUfflXGS EE Resource BlIoOCKS nr er rre e ER 40 Result Display Constellation Selection ssssssssssssss 68 Result summary ees riter estet eene 23 S Scrambling of coded bits esses 51 Sereen Layout 14 Settings AUO WE Auto Demodulation seeseeeeenee Capture Tilfie uuieco rtr n nent teer tertie ner Cell ID 2 Cell Identity Group entren Cha
57. a combination of the formats 1 1a 1b and 2 2a 2b Only one resource block per slot can support a combination of the PUCCH formats 1 1a 1b and 2 2a 2b The number of cyclic shifts available for PUCCH format 2 2a 2b N 2 _cs in a block with combination of PUCCH formats is calculated as follows N 2 cs 12 N 1 cs 2 For more information refer to 3GPP TS36 211 chapter 5 4 Physical Uplink Control Channel Remote command CONFigure LTE UL PUCCh N1CS on page 124 N 2 RB Defines bandwidth in terms of resource blocks that are reserved for PUCCH formats 2 2a 2b transmission in each subframe Since there can be only one resource block per slot that supports a combination of the PUCCH formats 1 1a 1b and 2 2a 2b the number of resource block s per slot available for PUCCH format 1 1a 1b is determined by N 2 RB For more information refer to 3GPP TS36 211 chapter 5 4 Physical Uplink Control Channel Remote command CONFigure LTE UL PUCCh N2RB on page 124 Format Selects the format of the PUCCH You can define the PUCCH format for all subframes or define the PUCCH format for each subframe individually e F1 F1a F1b F2 F2a F2b F3 Selects the PUCCH format globally for every subframe Note that formats F2a and F2b are only supported for normal cyclic prefix length For more information refer to 3GPP TS36 211 table 5 4 1 Supported PUCCH Formats Remote command CONFigure LTE UL PUCCh FORMat on page 123
58. a format which is suitable for the transmission of large amounts of data The ASCII character introduces the data block The next number indicates how many of the following digits describe the length of the data block In the example the 4 following digits indicate the length to be 5168 bytes The data bytes follow During the transmission of these data bytes all end or other control signs are ignored until all bytes are transmitted 0 specifies a data block of indefinite length The use of the indefinite format requires a NL END message to terminate the data block This format is useful when the length of the transmission is not known or if speed or other considerations prevent segmentation of the data into blocks of definite length Selecting and Configuring Measurements Selecting Measurements ee E TE 79 DISP WINDOWS nai TABLE egen deed dg se ARENS o ee pet aunt oen Aen 80 CALCulate lt n gt FEED lt DispType gt This command selects the measurement and result display EE User Manual 1173 1433 02 04 79 R amp S FSV K10x LTE Uplink Remote Commands 8 3 2 Selecting and Configuring Measurements Parameters lt DispType gt String containing the short form of the result display EVM EVCA EVM vs carrier result display EVM EVSY EVM vs symbol result display EVM FEVS frequency error vs symbol result display EVM EVSU EVM vs subframe result display PVT CBUF capture buffer result display SPEC SEM
59. ains information on all measurements that show the power of a signal over time Capture BUlfer Eed ENEE EERSTEN Rate eR Ra icd d ende ases EE RR xs 25 Capture Buffer The Capture Buffer result display shows the complete range of captured data for the last data capture The x axis represents time The maximum value of the x axis is equal to the Capture Time The y axis represents the amplitude of the captured UO data in dBm for RF input A Capture Memory dBm AdtE 0 00 0 00 dB CW Ref 20 dBm 2 0 msidiv Fig 4 1 Capture buffer without zoom The header of the diagram shows the reference level the mechanical and electrical attenuation and the trace mode The green bar at the bottom of the diagram represents the frame that is currently ana lyzed A blue vertical line at the beginning of the green bar in the Capture Buffer display repre sents the subframe start Additionally the diagram contains the Subframe Start Offset value This value is the time difference between the subframe start and capture buffer start EE User Manual 1173 1433 02 04 25 R amp S FSV K10x LTE Uplink Measurements and Result Displays Measuring the Error Vector Magnitude EVM When you zoom into the diagram you will see that the bar may be interrupted at certain positions Each small bar indicates the useful parts of the OFDM symbol A Capture Memory dBm Ref 20 dBm AttEI 0 00 70 00 dB 6 6 ms 0 0 ms div Fig 4 2
60. an XML file XML files are very commonly used to describe hierarchical structures in an easy to read format for both humans and PC A typical frame setup file would look like this lt FrameDefinition LinkDirection uplink TDDULDLAllocationConfiguration 0 RessourceBlocks 50 CP auto PhysLayCellIDGrp Group 0 PhysLayID ID 0 N_RNTI 0 N f 0 NOfSubbands 4 N RB HO 4 NOfRB PUCCH 4 DeltaShift 2 N1 cs 6 NI RB 1 NPUCCH 0 DeltaOffset 0 PUCCHStructureFormat Fl normal N c fastforward 1600 HoppingBitInformation 0 FrequencyHopping None DemRefSeq 3GPP DemPilBoostdBPUSCH 0 DemPilBoostdBPUCCH 0 GroupHop 0 SequenceHop 0 EnableN PRS 1 Delta_ss 0 N DMRS1 0 N DMRS2 0 SoundRefSeq 3GPP SoundRefBoostdB 0 SoundRefPresent 0 SoundRefSymOffs 13 SoundRefCAZAC u 2 SoundRefCAZAC q 0 SoundRefCAZAC alpha 0 SoundRefCAZAC mode 2 SoundRefB 0 SoundRefC 0 SRSSubframeConfiguration 0 SoundRefN CS 0 SoundRefK TC 0 SoundRefN RRC 0 SoundRefb hop 0 SoundRefI SRS 0 SoundRefk0 24 SoundRefNumSubcarrier 132 Frame Subframe lt PRBs gt lt PRB Start 2 Length 10 Modulation QPSK PUCCHOn 0 BoostingdB 0 gt lt PRB gt lt PRBs gt lt Subframe gt lt Frame gt lt stControl PhaseTracking 1 TimingTracking 0 CompensateDCOffset 1 UseBitStreamScrambling 1 ChannelEstimationRange 2 AutoDemodulation 1 gt lt stControl gt lt FrameDefinition gt All settings that are avai
61. arameters lt Cellld gt AUTO Automatically defines the cell ID lt numeric value gt Number of the cell ID Range 0 to 503 CONFigure LTE UL PLC CIDGroup lt GroupNumber gt This command selects the cell identity group for uplink signals Parameters lt GroupNumber gt Range 1 to 167 RST 0 Example CONF UL PLCI CIDG 12 Selects cell identity group 12 CONFigure LTE UL PLC PLID Identity This command selects the physical layer identity for uplink signals Parameters lt Identity gt AUTO Automatic selection 0 2 Manual selection RST AUTO Example CONF DL PLC PLID 2 Sets the physical layer identity to 2 CONF DL PLC PLID AUTO Physical layer ID is selected automatically Configuring Subframes CONFHure LTE UL CSUBNIMES 2 1 rette eth ap etn ea ont desee ec een Rer oed 115 CONEouret LTETULSENGO ttt tnter tentent tet tests toon ane 116 CONFigure L TE UL SUBFrame ssubframe ALLoc RBCount sees 116 CONFigure L TE UL SUBtrame subtramez ALL ochROttset 116 CONFigure L TE UL SUBFrame ssubframe ALLoc POWer esses 116 CONFigure L TE UL SUBFrame ssubframe ALLOoc CONT essen 117 CONFigure L TE UL SUBtrame subtramez ALL ocMOtDulation nene 117 CONFigure LTE UL CSUBframes lt NofSubframes gt This command selects the number of configurable subframes in the uplink signal User Manual 1173 1433 02 04 115 R amp S FSV K10
62. as for the SFO The results of the tracking estimation block are used to compensate the samples H completely in the reference path and according to the user settings in the measurement path Thus the signal impairments that are of interest to the user are left uncompensated in the measurement path After having decoded the data symbols in the reference path an additional data aided phase tracking can be utilized to refine the common phase error estimation 3 3 2 Analysis The analysis block ofthe EUTRA LTE uplink measurement application allows to compute a variety of measurement variables EVM The most important variable is the error vector magnitude which is defined as Tl Un 2 E for QAM symbol n before precoding and SC FDMA symbol l Since the normalized aver age power of all possible constellations is 1 the equation can be simplified to EVM a nj 3 2 EVM 5j D I 3 3 The average EVM of all data subcarriers is then User Manual 1173 1433 02 04 20 R amp S FSV K10x LTE Uplink Measurement Basics The LTE Uplink Analysis Measurement Application 1 Nrg No 2 3 EVM NosNrx 1 0 n 0 3 4 for Nps SC FDMA data symbols and the N x allocated subcarriers UO imbalance The I Q imbalance contained in the continuous received signal r t can be written as ck tr Ee O36O 3 5 where s t is the transmit signal and and Q are the weighting factors descr
63. ase the UEs have different frequency offsets Note that Auto Demodulation is not supported in this synchronization mode and the EVM may be higher in case only one UE is present in the signal Remote command SENSe LTE UL DEMod SISYnc on page 113 User Manual 1173 1433 02 04 51 R amp S FSV K10x LTE Uplink Configuring and Performing the Measurement a T Configuring Uplink Frames 5 5 2 Compensating Measurement Errors The tracking settings contain settings that compensate for various common measure ment errors that may occur The tracking settings are part of the Uplink Demodulation Settings tab of the Demod ulation Settings dialog box TUNE UL Frame Config UL Adv Sig Config _ Tracking Phase Off Timing Phase Specifies whether or not the measurement results should be compensated for common phase error When phase compensation is used the measurement results will be com pensated for phase error on a per symbol basis Off Phase tracking is not applied Pilot Only Only the reference signal is used for the estimation of the phase error Pilot and Pay Both reference signal and payload resource elements are used for the load estimation of the phase error Remote command SENSe LTE UL TRACking PHASe on page 113 Timing Specifies whether or not the measurement results should be compensated for timing error When timing compensation is used the measurement results will
64. ata rate and latency and to exploit the full potential of WCDMAbased 5 MHz operation Important features of HSPA are downlink multiple input multiple output MIMO higher order modulation for uplink and downlink improvements of layer 2 pro tocols and continuous packet connectivity In order to ensure the competitiveness of UMTS for the next 10 years and beyond con cepts for UMTS long term evolution LTE have been investigated The objective is a high data rate low latency and packet optimized radio access technology Therefore a study item was launched in 3GPP Release 7 on evolved UMTS terrestrial radio access EUTRA and evolved UMTS terrestrial radio access network EUTRAN LTE EUTRA will then form part of 3GPP Release 8 core specifications This introduction focuses on LTE EUTRA technology In the following the terms LTE or EUTRA are used interchangeably In the context of the LTE study item 3GPP work first focused on the definition of require ments e g targets for data rate capacity spectrum efficiency and latency Also com mercial aspects such as costs for installing and operating the network were considered Based on these requirements technical concepts for the air interface transmission schemes and protocols were studied Notably LTE uses new multiple access schemes on the air interface orthogonal frequency division multiple access OFDMA in downlink and single carrier frequency division multiple access SC FDMA in upl
65. ave to include the optional keyword Otherwise the suffix of the missing keyword is assumed to be the value 1 Optional keywords are emphasized with square brackets Example Without a numeric suffix in the optional keyword SENSe FREQuency CENTer is the same as FREQuency CENTer With a numeric suffix in the optional keyword DISPlay WINDow lt 1 4 gt ZOOM STATe DISPlay ZOOM STATe ON enables the zoom in window 1 no suffix DISPlay WINDow4 ZOOM STATe ON enables the zoom in window 4 User Manual 1173 1433 02 04 76 R amp S FSV K10x LTE Uplink Remote Commands REESEN Introduction 8 2 5 Alternative Keywords A vertical stroke indicates alternatives for a specific keyword You can use both keywords to the same effect Example SENSe BANDwidth BWIDth RESolution In the short form without optional Keywords BAND 1MHZ would have the same effect as BWID 1MHZ 8 2 6 SCPI Parameters Many commands feature one or more parameters If a command supports more than one parameter these are separated by a comma Example LAYout ADD WINDow Spectrum LEFT MTABle Parameters may have different forms of values e Numere Values TEE TT e ROGAN sae hue xi cM nentes uen 78 e Gharactor EE 78 LJEUI i Eis 79 LEE Block LUAM ES dees 79 8 2 6 4 Numeric Values Numeric values can be entered in any form i e with sign decimal point or exponent In case
66. ay the command returns one value for each subcarrier that has been analyzed lt EVM gt The unit depends on UNIT EVM The following parameters are supported e TRACE1 Returns the average EVM over all subframes User Manual 1173 1433 02 04 96 R amp S FSV K10x LTE Uplink Remote Commands Remote Commands to Read Trace Data e TRACE2 Returns the minimum EVM found over all subframes If you are analyzing a particular subframe it returns nothing e TRACE3 Returns the maximum EVM found over all subframes If you are analyzing a particular subframe it returns nothing 8 6 1 11 EVM vs Symbol For the EVM vs Symbol result display the command returns one value for each OFDM symbol that has been analyzed lt EVM gt For measurements on a single subframe the command returns the symbols of that sub frame only The unit depends on UNIT EVM The following parameters are supported e TRACE1 8 6 1 12 EVM vs Subframe For the EVM vs Subframe result display the command returns one value for each sub frame that has been analyzed lt EVM gt The unit depends on UNIT EVM The following parameters are supported e TRACE1 8 6 1 13 Frequency Error vs Symbol For the Frequency Error vs Symbol result display the command returns one value for each OFDM symbol that has been analyzed lt frequency error gt The unit is always Hz The following parameters are supported e TRACE1 8
67. ay contains one trace that shows the OFDM symbol EVM for that slot only Average minimum and maximum values in that case are the same For more information see Subframe Selection on page 66 User Manual 1173 1433 02 04 27 R amp S FSV K10x LTE Uplink Measurements and Result Displays Measuring the Error Vector Magnitude EVM The x axis represents the OFDM symbols with each symbol represented by a dot on the line The number of displayed symbols depends on the Subframe Selection and the length of the cyclic prefix Any missing connections from one dot to another mean that the R amp S FSV could not determine the EVM for that symbol In case of TDD signals the result display does not show OFDM symbols that are not part of the measured link direc tion On the y axis the EVM is plotted either in 9o or in dB depending on the EVM Unit A EVM vs Symbol 10 Symbols div 139 Remote command CALCulate lt n gt FEED EVM EVSY TRACe DATA EVM vs Subframe Starts the EVM vs Subframe result display This result display shows the Error Vector Magnitude EVM for each subframe You can use it as a debugging technique to identify a subframe whose EVM is too high The result is an average over all subcarriers and symbols of a specific subframe The x axis represents the subframes with the number of displayed subframes being 10 On the y axis the EVM is plotted either in or in dB depending on the EVM Unit Remote command
68. b is the active one You can switch between the tabs by touching the tab on the touchscreen or with the cursor keys e Performing Measurements EE 38 General SottNgS m 39 e Configuring Spectrum Measurement AAA 45 Advanced General Selgs certet er Doi E DANNER ENNE EENEN prend 48 e Configuring Uplink Signal Demodulaton ccc eeeneeeeeeeeceeeeeeeaeeeeeeetaeeeeetes 50 e Contgulrimg UPNk rans iere SA tnit e e Roe e reae EE Uu VR ENO E Rte aul edu dua PEDE NK RR Rad 52 e Defining Advanced Signal Characteristies eene 56 5 1 Performing Measurements The sweep menu contains functions that control the way the R amp S FSV performs a mea surement Single Sweep and Continuous Sweep In continuous sweep mode the R amp S FSV continuously captures data performs meas urements and updates the result display according to the trigger settings To activate single sweep mode press the Run Single softkey In single sweep mode the R amp S FSV captures data performs the measurement and updates the result display exactly once after the trigger event After this process the R amp S FSV interrupts the mea surement IESSE User Manual 1173 1433 02 04 38 R amp S FSV K10x LTE Uplink Configuring and Performing the Measurement ee ee EE SSS eS SSS SS SS General Settings You can always switch back to continuous sweep mode with the Run Cont softkey Remote command INITiate CONTinuous on page 83 Auto Level The
69. cheme eene 9 PME ID E 9 1 2 2 SC FDMA Parameiertzaton nennen rennen 10 1 2 8 Uplink Data Transmtssion nnnm nnne 10 1 2 4 Uplink Reference Signal Structure ssssssssee emen 11 1 2 5 Uplink Physical Layer Procecdures eene 11 1 3 dca ee 13 LM sog ne 14 2 4 Installing HE ATC 14 2 2 Application OVervIew eone nen noni ern HR e Se SCdeR ENNEN n ARR EENS KEREN EEN 14 LINER I A DE ER 16 3 Measurement Basics cecc ccce ce ccc cce en ene rene enu anna eara aaa n eaae enn eie 17 3 44 Symbols and Variables e eceece NEE ENKER ENKER EEREEEEEER KEES gek 17 PME 18 3 3 The LTE Uplink Analysis Measurement Application 18 3 3 4 Synchronization eie aac du uz T ed ecu Ne 19 KC NEE IEN 20 4 Measurements and Result Displays eeeeeeeeeeee 23 A A Numerical Results eeciniee reine ENEE tran nace ka an aono ck ea Edna ue EENS 23 4 2 Measuring the Power Over Titme cceeeesceeeeeeeseeeeeeeeeeeeseeeeeeseeeesesseneeeeeeeeeeesseenenenes 25 4 3 Measuring the Error Vector Magnitude EVM eene 26 4 4 Measuring the Spectrum seeeeeeseeeeennnnenn nennen nennt nennen nnne nnns 29 44 1 Frequency Sweep Measur
70. compatible with an attenuation that has been set manually the command also adjusts the reference level This command is available with option R amp S FSV B25 but not if R amp S FSV B17 is active Parameters lt Attenuation gt Attenuation level in dB Default unit dB Example INP EATT 10 Defines an attenuation level of 10 dB INPut lt n gt EATT STATe lt State gt This command turns the electronic attenuator on and off This command is available with option R amp S FSV B25 but not if R amp S FSV B17 is active Parameters lt State gt ON OFF RST OFF Example INP EATT STAT ON Turns the electronic attenuator on INPut lt n gt EATT AUTO lt State gt This command turns automatic selection of the electronic attenuation on and off If on electronic attenuation reduces the mechanical attenuation whenever possible This command is available with option R amp S FSV B25 but not if R amp S FSV B17 is active Parameters lt State gt ON OFF RST OFF Example INP EATT AUTO ON Turns automatic selection of electronic attenuation level on SENSe POWer AUTO lt analyzer gt STATe lt State gt This command initiates a measurement that determines the ideal reference level LEE User Manual 1173 1433 02 04 106 R amp S FSV K10x LTE Uplink Remote Commands Remote Commands to Configure the Application Parameters lt State gt OFF Performs no automatic reference level detection ON Performs
71. cordingly the measurement path might still contain impairments which are compensated in the reference path The sym bols of both signal processing paths form the basis for the analysis EEUU RA N User Manual 1173 1433 02 04 18 R amp S FSV K10x LTE Uplink Measurement Basics 3 3 1 The LTE Uplink Analysis Measurement Application Fypeteoarse oarse Integer CFO channel Fine timing estimation EE estimation Aint line H Window Window Bid E ompensation af Foon oametimng 4 Ke Dotachon amp fractional CFO estimation hoarse Full Hu E demapping ref compensation symbols a Tracking mus e estimation Kik SFO CFO CPE R TUI Hl dema pping S data symbols annel Jfgetine estimation amp interpolation e H H an gt Equalization LE sem compensation decision D CPE fine Fine channel H estimation estimation S HO Fi gata ine Customized ustomized i compensation compensation Equalization IDFT SFO CFO CPE CPE H Hu Fig 3 1 Block diagram for the LTE UL measurement application Synchronization In a first step the areas of sufficient power are identified within the captured UO data stream which consists of the receive samples r For each area of sufficient power the analyzer synchronizes on subframes of the uplink generic frame structure 3 After this coarse timing estimation the fractional part as well as the integer part of the carrier fre quency o
72. d Channel PUSCH that is determined by the transmission bandwidth NTx and the frequency hopping pattern kO User Manual 1173 1433 02 04 10 R amp S FSV K10x LTE Uplink Introduction Long Term Evolution Uplink Transmission Scheme The Physical Uplink Control Channel PUCCH carries uplink control information e g CAI reports and ACK NACK information related to data packets received in the downlink The PUCCH is transmitted on a reserved frequency region in the uplink 1 2 4 Uplink Reference Signal Structure Uplink reference signals are used for two different purposes on the one hand they are used for channel estimation in the eNodeB receiver in order to demodulate control and data channels On the other hand the reference signals provide channel quality infor mation as a basis for scheduling decisions in the base station The latter purpose is also called channel sounding The uplink reference signals are based on CAZAC Constant Amplitude Zero Auto Cor relation sequences 1 2 5 Uplink Physical Layer Procedures For EUTRA the following uplink physical layer procedures are especially important Non synchronized random access Random access may be used to request initial access as part of handover when tran siting from idle to connected or to re establish uplink synchronization The structure is shown in figure 1 3 TTH ss DATA TRA O Scheduled Data B Non Synchronzed Random Access Channel Tra
73. dBm gt lt relative power in dBc gt lt limit distance in dB gt lt limit check result reserved reserved The limit check result is either a 0 for PASS or a 1 for FAIL 8 6 1 17 Return Value Codes This chapter contains a list for encoded return values User Manual 1173 1433 02 04 98 R amp S FSV K10x LTE Uplink Remote Commands Remote Commands to Read Trace Data lt allocation ID gt Represents the allocation ID The value is a number in the range 1 70 e 1 Reference symbol e 0 Data symbol e 1 Invalid e 40 PUSCH e 41 DMRS PUSCH e 42 SRS PUSCH e 50 PUCCH e 51 DMRS PUCCH e 70 PRACH lt channel type gt e 0 TX channel e 1 adjacent channel e 2 alternate channel lt codeword gt Represents the codeword of an allocation The range is 0 2 e 0 1 1 e 1 172 e 2 22 modulation Represents the modulation scheme The range is 0 8 e 0 unrecognized e 1 RBPSK e 2 QPSK e 3 16QAM e 4 64QAM e 5 8PSK e 6 PSK e 7 mixed modulation e 8 BPSK number of symbols or bits In hexadecimal mode this represents the number of symbols to be transmitted In binary mode it represents the number of bits to be transmitted TRACe DATA Result This command returns the trace data for the current measurement or result display LEE User Manual 1173 1433 02 04 99 R amp S FSV K10x LTE Uplink Remote Commands Remote Comman
74. deword lt k gt Selects a limit line Irrelevant for the LTE application lt m gt Selects a marker Irrelevant for the LTE application lt n gt Selects a measurement window lt subframe gt Selects a subframe lt t gt Selects a trace Irrelevant for the LTE application 8 2 Introduction Commands are program messages that a controller e g a PC sends to the instrument or software They operate its functions setting commands or events and request infor mation query commands Some commands can only be used in one way others work in two ways setting and query If not indicated otherwise the commands can be used for settings and queries UM User Manual 1173 1433 02 04 74 R amp S FSV K10x LTE Uplink Remote Commands 8 2 1 Introduction The syntax of a SCPI command consists of a header and in most cases one or more parameters To use a command as a query you have to append a question mark after the last header element even if the command contains a parameter A header contains one or more keywords separated by a colon Header and parameters are separated by a white space ASCII code 0 to 9 11 to 32 decimal e g blank If there is more than one parameter for a command these are separated by a comma from one another Only the most important characteristics that you need to know when working with SCPI commands are described here For a more complete description refer to the User Man
75. ds to Read Trace Data For more information see chapter 8 6 1 Using the TRACe DATA Command on page 91 Query parameters lt TraceNumber gt TRACE1 TRACE2 TRACE3 LIST Usage Query only 8 6 2 Remote Commands to Read Measurement Results CAL Culate nzLlMitzks ACBowerACHannebREGuit eene 100 CALCulate n LIMit k ACPower ALTernate RESUIt eese 100 CAL Culate nzM Abkermz FUNGCHon bOMer RE Gu CUlbent 101 CALCulate lt n gt LIMit lt k gt ACPower ACHannel RESult lt Result gt This command queries the limit check results for the adjacent channels during ACLR measurements Query parameters lt Result gt ALL Queries the overall limit check results REL Queries the channel power limit check results ABS Queries the distance to the limit line Return values lt LimitCheck gt Returns two values one for the upper and one for the lower adja cent channel 1 Limit check has passed 0 Limit check has failed Example CALC LIM ACP ACH RES ALL Queries the results of the adjacent channel limit check Usage Query only CALCulate lt n gt LIMit lt k gt ACPower ALTernate RESult lt Result gt This command queries the limit check results for the alternate channels during ACLR measurements E MN User Manual 1173 1433 02 04 100 R amp S FSV K10x LTE Uplink Remote Commands Remote Commands to Read Trace Data Query parameters lt Result gt ALL Queries the overal
76. e eee eterne ennt 67 e Defining Various Measurement Parameters AAA 67 e Selecting the Contents of a Constellation Diagram 68 Scaling the REL IM 69 e USNO MAKS Ag ieren eg 69 6 1 Selecting a Particular Signal Aspect In the Selection tab of the Measurement Settings dialog box you can select specific parts of the signal you want to analyze Subframe Selection Selects a particular subframe whose results the software displays You can select a particular subframe for the following measurements Result Summary EVM vs Carrier EVM vs Symbol Inband Emission Channel Flatness Channel Flatness SRS Channel Group Delay Channel Flatness Difference Constella tion Diagram DFT Precoded Constellation Allocation Summary and Bit Stream If All is selected either the results from all subframes are displayed at once or a statistic is calculated over all analyzed subframes Selecting All either displays the results over all subframes or calculates a statistic over all subframes that have been analyzed User Manual 1173 1433 02 04 66 R amp S FSV K10x LTE Uplink Analyzing Measurement Results Defining Measurement Units Example Subframe selection If you select all subframes All the application shows three traces One trace shows the subframe with the minimum level characteristics the second trace shows the sub frame with the maximum level characteristics and the thi
77. e shows the highest average subcarrier EVM that has been found over the analyzed slots If you select and analyze one slot only the result display contains one trace that shows the subcarrier EVM for that slot only Average minimum and maximum values in that case are the same For more information see Subframe Selection on page 66 The x axis represents the center frequencies of the subcarriers On the y axis the EVM is plotted either in or in dB depending on the EVM Unit A EVM us Carrier 1 54 MHzidtv Remote command CALCulate lt n gt FEED EVM EVCA TRACe DATA EVM vs Symbol Starts the EVM vs Symbol result display This result display shows the Error Vector Magnitude EVM of the OFDM symbols You can use it as a debugging technique to identify any symbols whose EVM is too high The results are based on an average EVM that is calculated over all subcarriers that are part of a particular OFDM symbol This average OFDM symbol EVM is determined for all OFDM symbols in each analyzed slot If you analyze all subframes the result display contains three traces e Average EVM This trace shows the OFDM symbol EVM averaged over all slots e Minimum EVM This trace shows the lowest average OFDM symbol EVM that has been found over the analyzed slots e Maximum EVM This trace shows the highest average OFDM symbol EVM that has been found over the analyzed slots If you select and analyze one slot only the result displ
78. e spectrum flatness result between two adjacent physical subcarriers The measurement is evaluated over the currently selected slot in the currently selected subframe The currently selected subframe depends on your selection The x axis represents the frequency On the y axis the power is plotted in dB B Flatness Difference dB MI PK 1 54 MHzidiv Remote command CALCulate lt n gt FEED SPEC FDIF TRACe DATA Measuring the Symbol Constellation This chapter contains information on all measurements that show the constellation of a signal CoristellattoH DIaglelii 2 1er oderit ie t e eoe Pd t a ERG 35 User Manual 1173 1433 02 04 34 R amp S FSV K10x LTE Uplink Measurements and Result Displays Measuring Statistics Constellation Diagram Starts the Constellation Diagram result display This result display shows the inphase and quadrature phase results and is an indicator of the quality of the modulation of the signal In the default state the result display evaluates the full range of the measured input data You can filter the results in the Constellation Selection dialog box The ideal points for the selected modulation scheme are displayed for reference purpo ses The constellation diagram also contains information about the current evaluation range In addition it shows the number of points that are displayed in the diagram Remote command CALCulate lt n gt FEED CONS CONS TRACe DATA
79. e the Application Example CONF UL DRS DSSH 3 Sets the delta sequence shift to 3 CONFigure LTE UL DRS GRPHopping lt State gt This command turns group hopping for uplink signals on and off Parameters lt State gt ON OFF RST OFF Example CONF UL DRS GRPHopping ON Activates group hopping CONFigure LTE UL DRS NDMRs lt nDMRS gt This command defines the Npwrs Parameters nDMRS numeric value Example CONF UL DRS NDMR 0 Selects nNomrs 0 CONFigure LTE UL DRS PUCCh POWer lt Power gt This command sets the relative power of the PUCCH Parameters lt Power gt RST 0 Default unit DB Example CONF UL DRS PUCC POW 2 Sets the power of the PUCCH to 2 dB CONFigure L TE UL DRS PUSCh POWer Power This command sets the relative power of the PUSCH Parameters Power RST 0 Default unit DB Example CONF UL DRS POW 2 Sets the relative power of the PUSCH to 2 dB CONFigure L TE UL DRS SEQHopping State This command turns sequence hopping for uplink signals on and off e User Manual 1173 1433 02 04 118 R amp S FSV K10x LTE Uplink Remote Commands 8 7 5 2 Remote Commands to Configure the Application Parameters lt State gt ON OFF RST OFF Example CONF UL DRS SEQH ON Activates sequence hopping Configuring the Soundin
80. each constellation point lt I SFO Symb0 Carrier1 gt O SFO SymbO Carrier1 I SFO SymbO Carrier n lt Q SFO Symb0 Carrier n gt lt I SFO Symb1 Carrier1 gt O SFO Symb1 Carrier1 lt I SFO Symb1 Carrier n gt lt Q SFO Symb1 Carrier n gt lt I SFO Symb n Carrier1 gt lt Q SFO Symb n Carrier1 gt lt I SFO Symb n Carrier n gt Q SFO Symb n Carrier n gt lt I SF1 Symb0 Carrier1 gt lt Q SF1 Symb0 Carrier1 gt I SF1 SymbO Carrier n lt Q SF1 Symb0 Carrier n gt lt I SF1 Symb1 Carrier1 gt O SF 1 Symb1 Carrier1 lt I SF1 Symb1 Carrier n gt lt Q SF1 Symb1 Carrier n gt lt I SF n Symb n Carrier1 gt lt Q SF n Symb n Carrier1 gt lt I SF n Symb n Carrier n gt Q SF n Symb n Carrier n gt With SF subframe and Symb symbol of that subframe The and Q values have no unit The number of return values depends on the constellation selection By default it returns all resource elements including the DC carrier The following parameters are supported e TRACE1 Returns all constellation points included in the selection e TRACE2 Returns the constellation points of the reference symbols included in the selection e TRACE3 Returns the constellation points of the SRS included in the selection 8 6 1 10 EVM vs Carrier For the EVM vs Carrier result displ
81. ed in manual operation a link to the description is inserted IESSE User Manual 1173 1433 02 04 75 R amp S FSV K10x LTE Uplink Remote Commands REESEN Introduction 8 2 2 Long and Short Form The keywords have a long and a short form You can use either the long or the short form but no other abbreviations of the keywords The short form is emphasized in upper case letters Note however that this emphasis only serves the purpose to distinguish the short from the long form in the manual For the instrument the case does not matter Example SENSe FREQuency CENTer is the same as SENS FREQ CENT 8 2 3 Numeric Suffixes Some keywords have a numeric suffix if the command can be applied to multiple instan ces of an object In that case the suffix selects a particular instance e g a measurement window Numeric suffixes are indicated by angular brackets n next to the keyword If you don t quote a suffix for keywords that support one a 1 is assumed Example DISPlay WINDow lt 1 4 gt ZOOM STATe enables the zoom in a particular mea surement window selected by the suffix at WINDow DISPlay WINDow4 ZOOM STATe ON refers to window 4 8 2 4 Optional Keywords Some keywords are optional and are only part of the syntax because of SCPI compliance You can include them in the header or not Note that if an optional keyword has a numeric suffix and you need to use the suffix you h
82. ement sss rennes 29 4 4 2 WO Measurements een nnne nn nn rrr nennen enne nnne nnns 32 4 5 Measuring the Symbol Constellation eeeeeeeeeennnnnn n 34 4 6 Measuring Statistics sci sii cccccesieecetececetsccedcevecashecceceeedenseceteveecsnneecs FX xa Rua dee cL YE a caa pne ana 35 5 Configuring and Performing the Measurement 38 5 1 Performing Measurements esses nennen nennt nennen nnne nennen nennen 38 EEUU RA N User Manual 1173 1433 02 04 3 R amp S FSV K10x LTE Uplink Contents 5 2 5 2 1 5 2 2 5 2 3 5 2 4 5 3 5 3 1 5 3 2 5 3 3 5 4 5 4 1 5 4 2 5 4 3 5 5 5 5 1 5 5 2 5 6 5 6 1 5 6 2 5 6 3 5 7 5 7 1 5 7 2 5 7 3 5 7 4 5 7 5 6 1 6 2 6 3 6 4 6 5 6 6 EI CIE d e EE 39 Defining Signal Characteristics sssssseene meme 39 Configuring the Input Level 41 Configuring the Data Capture eene mener nennen 43 Triggering Measurements eene nnne nnne nen 44 Configuring Spectrum Measurements ceeeeeeeeeeeeeeeerenn enne nnn 45 General ACLR and SEM Contouratton emen 45 Configuring SEM Measurement nennen nnne 46 Configuring ACLR Measurements eene nne 47 Advanced General SettingS cccccccsssssseecceeesee ceeeeeeeeeseeseeeeeeeeesasesseeeeeeeeeeeeseneeneees 48 Controlling VO Data 48 Controlling the Input 48 Configuring the Digital 1 Q Input 49 Configuring Uplink Signal Demodulation
83. ement being closest to the limit line for the corresponding frequency segment e Power Abs Shows the absolute measured power of the frequency whose power is closest to the limit The application evaluates this value for each frequency segment e Power Rel Shows the distance from the measured power to the limit line at the frequency whose power is closest to the limit The application evaluates this value for each frequency segment e Ato Limit Shows the minimal distance of the tolerance limit to the SEM trace for the corre sponding frequency segment Negative distances indicate the trace is below the tol erance limit positive distances indicate the trace is above the tolerance limit Att E 0 00 0 00 dB Remote command CALCulate lt n gt FEED SPEC SEM TRACe DATA ACLR Starts the Adjacent Channel Leakage Ratio ACLR measurement User Manual 1173 1433 02 04 30 R amp S FSV K10x LTE Uplink Measurements and Result Displays Measuring the Spectrum The ACLR measurement analyzes the power of one or two transmission channels and the power of the two neighboring channels adjacent channels to the left and right of the TX channels If you analyze two TX channels these have to be next to each other The distance between the two TX channels is variable and is defined as a TX offset The TX channels are labeled CO and CuO in the diagram In case of two TX channels the lower adjacent channels cl1 and cl2 are to the left o
84. eps Suffix lt m gt 1 Example INIT CONT OFF Switches to single measurement mode CALC DELT2 ON Turns on delta marker 2 INIT WAI Starts a measurement and waits for the end CALC MARK2 Y Queries the measurement result at the position of delta marker 2 Usage Query only Scaling the Vertical Diagram Axis Programming example to scale the y axis Start EVM vs Symbol result display in screen B CALC2 FEED EVM EVSY Refresh the measurement results based on the contents of the capture buffer INIT IMM Select screen B DISP WIND2 SEL Select dB as the EVM unit UNIT EVM DB E MN User Manual 1173 1433 02 04 130 R amp S FSV K10x LTE Uplink Remote Commands Analyzing Measurement Results Define the point of origin of 5 dB on the y axis DISP TRAC Y SCAL FIXS OFFS 5 Define the distance of 10 dB between two grid lines on the y axis DISP TRAC Y SCAL FIXS PERD 10 DISPlay WINDow TRACe Y SCAL AUTO EE 131 DISPlay WINDow TRACev GCAletx caleOttGet rert eorornsrnnrenerorereennn 131 DISPlay WINDow TRACe Y SCALe FIXScale PERDiVv eseeesee esee 131 DISPlay WINDow TRACe Y SCALe AUTO This command automatically adjusts the scale of the y axis to the current measurement results Note that the command only affects the result display selected with DISPlay WINDow lt n gt SELect Example DISP TRAC Y SCAL AUTO Scales the y axis of the selected result d
85. es the LTE mode you are testing The choices you have depend on the configuration of the R amp S FSV option FSx K100 PC enables testing of 3GPP LTE FDD signals on the downlink option FSx K101 PC enables testing of 3GPP LTE FDD signals on the uplink option FSx K102 PC enables testing of 3GPP LTE MIMO signals on the downlink option FSx K104 PC enables testing of 3GPP LTE TDD signals on the downlink option FSx K105 PC enables testing of 3GPP LTE TDD signals on the uplink FDD and TDD are duplexing methods e FDD mode uses different frequencies for the uplink and the downlink e TDD mode uses the same frequency for the uplink and the downlink Downlink DL and Uplink UL describe the transmission path e Downlink is the transmission path from the base station to the user equipment The physical layer mode for the downlink is always OFDMA e Uplink is the transmission path from the user equipment to the base station The physical layer mode for the uplink is always SC FDMA Remote command CONFigure LTE LDIRection on page 103 CONFigure LTE DUPLexing on page 103 Defining the Signal Frequency For measurements with an RF input source you have to match the center frequency of the analyzer to the frequency of the signal The available frequency range depends on the hardware configuration of the analyzer you are using The frequency setting is available for the RF input source Remote command Center frequency SENSe
86. ey turns blue The marker stays active User Manual 1173 1433 02 04 70 R amp S FSV K10x LTE Uplink Analyzing Measurement Results Marker 1 Pressing the Marker lt x gt softkey again deactivates the marker You can also turn off the marker by pressing the All Marker Off softkey Using Markers If you d like to see the area of the spectrum around the marker in more detail you can use the Marker Zoom function Press the Marker Zoom softkey to open a dialog box in which you can specify the zoom factor The maximum possible zoom factor depends on the result display The Unzoom softkey cancels the marker zoom Note that the zoom function is not available for all result displays If you have more than one active trace it is possible to assign the marker to a specific trace Press the Marker Trace softkey in the marker to menu and specify the trace in the corresponding dialog box SCPI commands See chapter 8 8 2 Marker and Delta Marker on page 126 SS User Manual 1173 1433 02 04 71 R amp S FSV K10x LTE Uplink File Management File Manager 7 File Management 7 1 File Manager The root menu of the application includes a File Manager with limited functions for quick access to file management functionality Loading a Frame Setup The frame setup or frame description describes the complete modulation structure of the signal such as bandwidth modulation etc The frame setup is stored as
87. f the first TX channel The upper adjacent channels cu1 and cu2 are to the right of the second TX channel The x axis represents the frequency with a frequency span that relates to the specified EUTRA LTE channel and adjacent bandwidths On the y axis the power is plotted in dBm By default the ACLR settings are based on the selected LTE Channel Bandwidth You can change the assumed adjacent channel carrier type and the Noise Correction on page 47 e B NCORR OFF RBW 100 00 kHz VBW 1 00 MHz SWT 500 00 ms 2 93 MHz div 1014 63 MHz The power for the TX channel is an absolute value in dBm The power of the adjacent channels are values relative to the power of the TX channel In case of two TX channels the power of the adjacent channels to the left of the TX channels are values relative to the power of the left TX channel The power of the adjacent channels on the right of the TX channels are values relative to the power of the right TX channel In addition the ACLR measurement results are also tested against the limits defined by 3GPP In the diagram the limits are represented by horizontal red lines ACLR table A table above the result display contains information about the measurement in numerical form e Channel Shows the channel type TX Adjacent or Alternate Channel Note that if you perform a measurement on two TX channels each TX channel only has one set of adjacent channels The first TX channel CO those t
88. f the application Select the file you want to load and activate it with the Load IQ Data button 7 2 SAVE RECALL Key Besides the file manager in the root menu you can also manage the data via the SAVE RECALL key The corresponding menu offers full functionality for saving restoring and managing the files on the R amp S FSV The save recall menu is the same as that of the spectrum mode For details on the softkeys and handling of this file manager refer to the operating manual of the R amp S FSV E T User Manual 1173 1433 02 04 73 R amp S FSV K10x LTE Uplink Remote Commands Overview of Remote Command Suffixes 8 Remote Commands e Overview of Remote Command Gufftves nnn 74 nttodiuction leese EEN plata ma Eege 74 e Selecting and Configuring Measurements A 79 e Remote Commands to Perform Measurements nnn 83 e Remote Commands to Read Numeric HResuhts 84 e Remote Commands to Read Trace Data ed tete ttn ain tn nnn 91 e Remote Commands to Configure the Applcatton 102 e Analyzing Measurement Results AA 125 Ee De deier RE 132 8 1 Overview of Remote Command Suffixes This chapter provides an overview of all suffixes used for remote commands in the LTE application Suffix Description lt allocation gt Selects an allocation lt analyzer gt No effect lt antenna gt Selects an antenna for MIMO measurements lt cluster gt Selects a cluster uplink only lt cwnum gt Selects a co
89. ffset CFO are estimated and compensated In order to obtain an OFDM demodulation via FFT of length Nee that is not corrupted by ISI a fine timing is estab lished which refines the coarse timing estimate A phase tracking based on the reference SC FDMA symbols is performed in the fre quency domain The corresponding tracking estimation block provides estimates for e the relative sampling frequency offset e the residual carrier frequency offset Af e the common phase error According to references 7 and 8 the uncompensated samples H in the DFT preco ded domain can be stated as User Manual 1173 1433 02 04 19 R amp S FSV K10x LTE Uplink Measurement Basics The LTE Uplink Analysis Measurement Application jc j2z Ns Ngpep G kd j2z Ng N pp NT Ra Ag Ay e 1 el TNs Ngey s el TN N rrr An N A9 CPE SFO res CFO 3 1 with e the DFT precoded data symbol A on subcarrier k at SC FDMA symbol e the channel transfer function Hy e the number of Nyquist samples Ns within the total duration Ts e the duration of the useful part of the SC FDMA symbol T Ts T e the independent and Gaussian distributed noise sample N Within one SC FDMA symbol both the CPE and the residual CFO cause the same phase rotation for each subcarrier while the rotation due to the SFO depends linearly on the subcarrier index A linear phase increase in symbol direction can be observed for the residual CFO as well
90. g Reference Signal CONFigureELTELULIS E le 119 CONFIGUTE L TEVUL NEE 119 CONFIE EE EI e 119 CONFIgure iE TE ULSSRS CY CS E 120 CONFigureEETEEUESRSSSIRS E 120 CONFigurepETEEULISRSINRRG ecce rer det meet reet eds te teris eaten 120 EE Le HE ENN e E 120 CON Te EE El UL SRS STA EE 121 CONFigure L TEEUL SRS SUGCONfIG 1 oer erento wis dee nena 121 COlNFIgureEETEEULISRS TRGOOND situer enar ane ono n EE enne no ex tn p anch cem denn 121 CONFigure LTE UL SRS BHOP Bandwidth This command defines the frequency hopping bandwidth Dr Parameters Bandwidth numeric value RST 0 Example CONF UL SRS BHOP 1 Sets the frequency hopping bandwidth to 1 CONFigure LTE UL SRS BSRS lt Bandwidth gt This command defines the bandwidth of the SRS Bags Parameters lt Bandwidth gt lt numeric value gt RST 0 Example CONF UL SRS BSRS 1 Sets the SRS bandwidth to 1 CONFigure LTE UL SRS CSRS lt Configuration gt This command defines the SRS bandwidth configuration Cgps Parameters lt Configuration gt lt numeric value gt RST 0 User Manual 1173 1433 02 04 119 R amp S FSV K10x LTE Uplink Remote Commands a MN A V X saewent Remote Commands to Configure the Application Example CONF UL SRS CSRS 2 Sets the SRS bandwidth configuration to 2 CONFigure L TE UL SRS CYCS lt CyclicShift gt Set
91. gure ETEJ DUPLekirig tet rr rt tnter rhet heiter ea pe nentur EENEG 103 El t IER RBE 103 CONFigure LTET UL EE 103 CONFigure EETETFUL GS El 115 CONFigure LTE UL CYCPrefix CONFigure LTE UE DRS DS SHIM E 117 CONFigure ETETEUE DRS GRPEOpping i roa iretur Rr eit nest ied due bee dde 118 CONFig re ETEEUE DRS NDMRS ient otc tectis EE repente bab EP eba a A E eed onda gd 118 CONFigure ETETULE DRS PUGGCHh POWA6r cottidie Ere iege dct ie nhe ree a dad d 118 CONFigure ETEJ UL DRS SEQhHoppihg 2 trn rente inneren denis 118 CONFigure L TE UL DRS PUSCh POWer eere nennen ntn nnne nnn tnnt ete rarna i anana 118 GONEIureHETEIDIICNOHRR ege eed M CONFigurel EN RTE e CD riore a a reete ret vst Sandee divest ente vedete CONFigure LTE UL PLC CIDGroup CONFigure LTE UE PEC REID BE G lle CR RTS Ge ep ele 123 CONFigure LTE UL PUCCH RE 123 CONFigure LTEJSUL PUCCH FORMAb ints ntn tret nhe ena tar tnit nth ri dte dei enn 123 CONFigure LTEFUE PUCCA Me 124 CONFigure ETEEUL PUGCCHIN2RB niin nderit cabins t ete edu cel e n e Ere Avenir dane 124 CONFigurel LTEJ UL leet 124 CONFigure ETETFULE PUCCHh NPAR 2 22 kir ter uarie baatar epa dd e E pase Reeder 124 CONFigure L TEE UE PUSCh FEHMode erret tee er Pr er ein ena trennen rrr NEEN 121 CONFigure ETEFULE PUSCH FFHOFTSet occorre tnt etna e IRR Erato penetra date neta ENNE 122 ERREUR RA E
92. h 16QAM modulation Usage Query only FETCh SUMMary EVM UCCD AVERage This command queries the EVM of all DMRS resource elements of the PUCCH as shown in the result summary Return values lt EVM gt EVM in or dB depending on the unit you have set Example FETC SUMM EVM UCCD Returns the average EVM of all DMRS resource elements Usage Query only FETCh SUMMary EVM UCCH AVERage This command queries the EVM of all resource elements of the PUCCH as shown in the result summary Return values lt EVM gt EVM in or dB depending on the unit you have set Example FETC SUMM EVM UCCH Returns the average EVM of all resource elements Usage Query only FETCh SUMMary EVM USQP AVERage This query returns the EVM for all QPSK modulated resource elements of the PUSCH Return values lt EVM gt lt numeric value gt EVM in or dB depending on the unit you have set Example FETC SUMM EVM USQP Queries the PUSCH QPSK EVM Usage Query only FETCh SUMMary EVM USST AVERage This query returns the the EVM for all 16QAM modulated resource elements of the PUSCH Return values lt EVM gt EVM in or dB depending on the unit you have set LEE User Manual 1173 1433 02 04 88 R amp S FSV K10x LTE Uplink Remote Commands REESEN Remote Commands to Read Numeric Results Example FETC SUMM EVM USST Queries the PUSCH 16QAM EVM Usage Query only FETCh SU
93. he Capture Buffer result display Return values lt Offset gt Time difference between the sub frame start and capture buffer start Default unit s Example FETC SUMM TFR Returns the sub frame start offset Usage Query only 8 6 Remote Commands to Read Trace Data e Using the TRACe DATA Commande 91 e Remote Commands to Read Measurement Results 100 8 6 1 Using the TRACe DATA Command This chapter contains information on the TRACe DATA command and a detailed descrip tion of the characteristics of that command The TRACe DATA command queries the trace data or results of the currently active measurement or result display The type number and structure of the return values are specific for each result display In case of results that have any kind of unit the command returns the results in the unit you have currently set for that result display Note also that return values for results that are available for both downlink and uplink may be different User Manual 1173 1433 02 04 91 R amp S FSV K10x LTE Uplink Remote Commands Remote Commands to Read Trace Data For several result displays the command also supports various SCPI parameters in combination with the query If available each SCPI parameter returns a different aspect of the results If SCPI parameters are supported you have to quote one in the query Example TRAC2 DATA TRACE1 The format of the return values is either in ASCII or bi
94. he scrambling SENSe L TE UL DEMod CDCoffset State This command turns DC offset compensation for uplink signals on and off Parameters State ON OFF RST ON Example UL DEM CDC OFF Deactivates DC offset compensation o Ml User Manual 1173 1433 02 04 112 R amp S FSV K10x LTE Uplink Remote Commands Remote Commands to Configure the Application SENSe LTE UL DEMod CESTimation lt Type gt This command selects the channel estimation type for uplink signals Parameters lt Type gt PIL PILPAY PIL Pilot only PILP Pilot and payload RST PILP Example UL DEM CEST PIL Uses only the pilot signal for channel estimation SENSe LTET UL DEMod SISYnc State This command turns suppressed interference synchronization on and off Parameters State ON OFF RST OFF Example UL DEM SISY ON Turns suppressed interference synchronization on 8 7 3 2 Compensating Measurement Errors SENSe L TE UL TRACking PHASe ecce tentent ttt tnter tcs 113 SENSe L TE UL TRACking TIME eccentric tensis 113 SENSe LTE UL TRACking PHASe Type This command selects the phase tracking type for uplink signals Parameters Type OFF Deactivate phase tracking PIL Pilot only PILP Pilot and payload RST OFF Example SENS UL TRAC PHAS PILP Use pilots and payload for channel estimation SENSe L TE UL TRACking TIME State Th
95. ibing the UO imbalance We define that l 1 and Q 1 AQ The I Q imbalance estimation makes it possible to evaluate the modulator gain balance 1 AQ 3 6 and the quadrature mismatch arg 1 AQ 3 7 based on the complex valued estimate Basic in band emissions measurement The in band emissions are a measure of the interference falling into the non allocated resources blocks The relative in band emissions are given by Emissions absolute RB Emissions iy Ars 1 CH2 Nppg l e Nee gt MON Ely e 3 8 where Ts is a set Ts of SC FDMA symbols with the considered modulation scheme being active within the measurement period Apg is the starting frequency offset between the allocated RB and the measured non allocated RB e g Agg 1 or App 1 for the first adja cent RB c is the lower edge of the allocated BW and Y t f is the frequency domain signal evaluated for in band emissions Ngg is the number of allocated RBs The basic in band emissions measurement interval is defined over one slot in the time domain User Manual 1173 1433 02 04 21 The LTE Uplink Analysis Measurement Application Other measurement variables Without going into detail the EUTRA LTE uplink measurement application additionally provides the following results e Total power e Constellation diagram e Group delay e Q offset e Crest factor e Spectral flatness R amp S FSV K10x LTE Uplink Measureme
96. icle ieee ta cuace ne Ea nere peek eene dead NEE nad 90 FETGCh SUNMMary POWerPAVERagel recur tr e e rtp a bu va cen a Nana dene aaa 90 FETCh SUMMary QUADerror MAXimUm 2 enne ane caen a a Ducum n RR npe eae R A RR OD da na KEEN 90 FETCh SUMMary sQUADerrorMINIImUE iccirco cede eaaa ENN 90 FETCh SUMMary QUADerror AVERage a eicere aaia aaia 90 FETCHSUMMary RSTP MAXIMUM eene nennen ee aeaaaee rh nitet nn nnne 90 FETCH SUMMary IS PPM ordenada Coup ace tenu tar ar tecla etapa AE Age deeR 90 FETICh SUMMaryiSERReEMAXImUml Aiea nieve EE E Dre eve nadie ee e iad 91 FETCH SUMMary SERROR MINIMUM KEE 91 al Her e El E KEE 91 FETFCHSUMMary TEE 91 FETCh CYCPrefix This command queries the cyclic prefix type that has been detected Return values lt PrefixType gt The command returns 1 if no valid result has been detected yet NORM Normal cyclic prefix length detected EXT Extended cyclic prefix length detected Example FETC CYCP Returns the current cyclic prefix length type Usage Query only FETCh PLC CIDGroup This command queries the cell identity group that has been detected Return values lt CidGroup gt The command returns 1 if no valid result has been detected yet Range 0 to 167 R amp S FSV K10x LTE Uplink Remote Commands REESEN Remote Commands to Read Numeric Results Example FETC PLC CIDG Returns the current cell identity group
97. in dB lt UpperAdjChannelPower gt is the relative power of the upper adjacent channel in dB e 1stLowerAltChannelPower is the relative power of the first lower alternate channel in dB 1stUpperAltChannelPower is the relative power of the first lower alternate channel in dB lt nthLowerAltChannelPower gt is the relative power of a subse quent lower alternate channel in dB nthUpperAltChannelPower is the relative power of a subse quent lower alternate channel in dB Example CALC1 MARK FUNC POW RES Returns the current ACLR measurement results Usage Query only Remote Commands to Configure the Application Remote Commands for General Settings eene 102 Advanced General SetunGS c2 222 cccccdcsssccceeseacadecseceeeeeaadedanccseeededsssietevatanaseeaceas 110 Configuring Uplink Signal DeMOdUIatiOn AAA 112 Connoguribg WOW Frames a ccena n tdeo Heat verto tax Ex tena deve Ho eek eut ener 114 Defining Advanced Signal Charactertstce AA 117 Remote Commands for General Settings This chapter contains remote control commands necessary to control the general mea surement settings For more information see chapter 5 2 General Settings on page 39 e e User Manual 1173 1433 02 04 102 R amp S FSV K10x LTE Uplink Remote Commands Re
98. in either the UE or radio access network and the availability of this packet at IP layer in the radio access network UE shall be less than 5 ms Also C plane latency shall be reduced e g to allow fast transition times of less than 100 ms from camped state to active state e Bandwidth Scaleable bandwidths of 5 MHz 10 MHz 15 MHz and 20 MHz shall be supported Also bandwidths smaller than 5 MHz shall be supported for more flexibility e Interworking Interworking with existing UTRAN GERAN systems and non 3GPP systems shall be ensured Multimode terminals shall support handover to and from UTRAN and GERAN as well as inter RAT measurements Interruption time for hand over between EUTRAN and UTRAN GERAN shall be less than 300 ms for realtime Services and less than 500 ms for non realtime services e Multimedia broadcast multicast services MBMS MBMS shall be further enhanced and is then referred to as E MBMS e Costs Reduced CAPEX and OPEX including backhaul shall be achieved Costef fective migration from Release 6 UTRA radio interface and architecture shall be pos sible Reasonable system and terminal complexity cost and power consumption shall be ensured All the interfaces specified shall be open for multivendor equipment interoperability e Mobility The system should be optimized for low mobile speed 0 to 15 km h but higher mobile speeds shall be supported as well including high speed train environ ment as a special case e
99. ink Furthermore MIMO antenna schemes form an essential part of LTE In an attempt to simplify protocol architecture LTE brings some major changes to the existing UMTS protocol concepts Impact on the overall network architecture including the core network is being investiga ted in the context of 3GPP system architecture evolution SAE e Requirements for UMTS Long Term Evolutton 7 e Long Term Evolution Uplink Transmission Gcheme AAA 9 Ee 13 Requirements for UMTS Long Term Evolution LTE is focusing on optimum support of packet switched PS services Main requirements for the design of an LTE system are documented in 3GPP TR 25 913 1 and can be summarized as follows User Manual 1173 1433 02 04 7 R amp S FSV K10x LTE Uplink Introduction REESEN Requirements for UMTS Long Term Evolution e Data Rate Peak data rates target 100 Mbps downlink and 50 Mbps uplink for 20 MHz spectrum allocation assuming two receive antennas and one transmit antenna are at the terminal e Throughput The target for downlink average user throughput per MHz is three to four times better than Release 6 The target for uplink average user throughput per MHz is two to three times better than Release 6 e Spectrum efficiency The downlink target is three to four times better than Release 6 The uplink target is two to three times better than Release 6 e Latency The one way transit time between a packet being available at the IP layer
100. input e IF Power The trigger event is the IF power level The measurement starts when the IF power meets or exceeds a specified power trigger level e RF Power The trigger event is the RF power level The measurement starts when a signal out side of the measured channel meets or exceeds a certain level at the first intermediate frequency User Manual 1173 1433 02 04 44 R amp S FSV K10x LTE Uplink Configuring and Performing the Measurement REESEN Configuring Spectrum Measurements The level range is from 50 dBm to 10 dBm The corresponding trigger level at the RF input is The RF Power trigger is available with detector board 1307 9554 02 Rev 05 00 or higher It is not available for measurements with the digital UO interface R amp S FSV B17 e Power Sensor The trigger event is a specified level measured by a power sensor The measurement starts when a power sensor measurement meets certain conditions The power sensor as a trigger source is available with option R amp S FSV K9 and a connected power sensor You can define a power level for an external IF power RF power or power sensor trigger The name and contents of the Power Level field depend on the selected trigger mode It is available only in combination with the corresponding trigger mode The measurement starts as soon as the trigger event happens It may become necessary to start the measurement some time after the trigger event In that case define a trigger
101. is because the res olution bandwidths are implemented digitally after the A D converter You can either specify the RF Reference Level in dBm or Baseband Reference Level in V depending on the input source You can also use automatic detection of the reference level with the Auto Level func tion If active the application measures and sets the reference level to its ideal value before each sweep This process slightly increases the measurement time You can define the measurement time of that measurement with the Auto Level Track Time Automatic level detection also optimizes RF attenuation Remote command Manual RF CONFigure POWer EXPected RF analyzer on page 105 Manual BB CONFigure POWer EXPected IQ analyzer on page 105 Automatic SENSe POWer AUTO lt analyzer gt STATe on page 106 Auto Level Track Time SENSe POWer AUTO analyzer TIME on page 107 Attenuating the Signal Attenuation of the signal may become necessary if you have to reduce the power of the signal that you have applied Power reduction is necessary for example to prevent an overload of the input mixer The LTE application provides several attenuation modes e External attenuation is always available It controls an external attenuator if you are using one e Mechanical or RF attenuation is always available The mechanical attenuator con trols attenuation at the RF input Mechanical attenuation is available in
102. is command turns timing tracking for uplink signals on and off I User Manual 1173 1433 02 04 113 R amp S FSV K10x LTE Uplink Remote Commands 8 7 4 8 7 4 1 8 7 4 2 Remote Commands to Configure the Application Parameters lt State gt ON OFF RST OFF Example UL TRAC TIME ON Activates timing tracking Configuring Uplink Frames Configuring TDD Signals CONFIGurEEE TE UL e e NEE 114 CONFigure ETE UL TTD DIU D COM si ecco 2 2 eerte a end ean deers 114 CONFigure LTE UL TDD SPSC lt Configuration gt This command selects the special subframe configuration for LTE uplink signals Parameters lt Configuration gt lt numeric value gt Example CONF UL TDD SPSC 2 Selects special subframe configuration 2 CONFigure LTE UL TDD UDConf Configuration This command selects the UL DL TDD subframe configuration for uplink signals Parameters lt Configuration gt Range 0 to 6 RST 0 Example CONF UL TDD UDC 4 Selects allocation configuration number 4 Configuring the Physical Layer Cell Identity CONFIGuIe LTELUL PLC CID TEE 114 CONFig re l LTEFUL PLC CIDGO D iie a better exu de E 115 CONRDUre ETE UL PG ua nina giiia aariaa o Manag nui na dene EER deer 115 CONFigure LTE UL PLC CID lt Cellld gt This command defines the cell ID User Manual 1173 1433 02 04 114 R amp S FSV K10x LTE Uplink Remote Commands 8 7 4 3 Remote Commands to Configure the Application P
103. isplay Usage Event DISPlay WINDow TRACe Y SCALe FIXScale OFFSet Origin This command defines the point of origin of the y axis and thus has an effect on the scale of the y axis Note that the command only affects the result display selected with DISPlay WINDow lt n gt SELect Parameters lt Origin gt Point of origin of the y axis The unit depends on the result display you want to scale Example See chapter 8 8 Analyzing Measurement Results on page 125 DISPlay WINDow TRACe Y SCALe FIXScale PERDiv Distance This command defines the distance between two grid lines on the y axis and thus has an effect on the scale of the y axis Note that the command only affects the result display selected with DISPlay WINDow lt n gt SELect Parameters lt Distance gt The unit depends on the result display you want to scale Example See chapter 8 8 Analyzing Measurement Results on page 125 N User Manual 1173 1433 02 04 131 R amp S FSV K10x LTE Uplink Remote Commands Configuring the Software 8 9 Configuring the Software CON FIGUME PRESEE EE 132 DISPlayEWINBoWwens SEL amp GL 1 EENREENEERLE SEENEN ENER 132 SE DEE 132 MMEMbry EOAD DEModSetlifig 3 2 DEENEN EES Ae 132 CONFigure PRESet Initiates a preset to the default state of the software and if connected to an analyzer also presets the analyzer Example CONF PRES Presets the software Usage Event
104. l limit check results REL Queries the channel power limit check results ABS Queries the distance to the limit line Return values lt LimitCheck gt Returns two values one for the upper and one for the lower alter nate channel 1 Limit check has passed 0 Limit check has failed Example CALC LIM ACP ALT RES ALL Queries the results of the alternate channel limit check Usage Query only CALCulate lt n gt MARKer lt m gt FUNCtion POWer RESult CURRent This command queries the current results of the ACLR measurement or the total signal power level of the SEM measurement To get a valid result you have to perform a complete measurement with synchronization to the end of the measurement before reading out the result This is only possible for single sweeps Suffix lt m gt 1 Query parameters CPOW This parameter queries the signal power of the SEM measure ment e User Manual 1173 1433 02 04 101 R amp S FSV K10x LTE Uplink Remote Commands 8 7 8 7 1 Remote Commands to Configure the Application Return values lt Result gt SEMResults Power level in dBm ACLRResults Relative power levels of the ACLR channels The number of return values depends on the number of transmission and adjacent channels The order of return values is lt TXChannelPower gt is the power of the transmission channel in dBm e lt LowerAdjChannelPower gt is the relative power of the lower adjacent channel
105. l tetas a naa eaaa a R2 E aeiia 87 FETCh SUMMary EVMEIPSIGnal MIMNIEUI ke diis a uictor preach i 87 FETCh SUMMary EVM PSIGnal AVERage eeeeeeeeeeeee enne nnne nnn nnns nh anat 87 al Here Ee e RT e RA D ET 87 FETCh SUMMary EVMISDST AVERage 1 2 dada iin tet bedi En ERENER 87 User Manual 1173 1433 02 04 84 Remote Commands to Read Numeric Results FETCh SUMMary EVM UCCD AVERagel eene tette tens 88 al Mere Eeer ee ele 88 FETCh iSUMMary EVM USOP AVERage n er E Gee eld EEN 88 FETCh SUMMary EVMEUSSTDAVERage 121i norte e reru epe eege dee 88 FEIGh SUMMan FERRO MAXIMUM 2 1 raro E2c art eon SEENEN pee tute euo Dx bate ENEE 89 FETCh SUMMary FERRoOEMIMNIRUEI 22e cua cose lel hed b Rute ce e ERREUR EN 89 FETCh SUMMary FERRoOImDAVERagg em treni reete RR eR eee ta Ro E ERa 89 FETCh SUMMary GIMBalance MAXimum e esssssssssesssessen eene nnne nennen nennen renis 89 FEFCh SUMMary GIMBalance MINII deed nube aiia ean pu hon eu xn ES 89 FETCh SUMMary GIMBalance AVERage 2 eei ie reir eden a aee nnne E EEA 89 ai le ee d Ei ee e TEE 89 FETCH SUMMarytOOFiset MIN en 89 FETChH SUMMaryIOOFfset AVERAGE iiine eadera Teig 89 FETCHSUMMaty ERT EE 90 FETCh SUMMary OSTPIMINIIUII E EEEREREEEEEESERREEREEEEEEUEREESER NEEN kukaa didada 90 FETCH SUMMary POWerWAX WU eg NEESS SEENEN ENEE 90 FETCHSUMMary POWer MINIMUM 0 2 ic
106. lable in the Demod Settings dialog box are also in the frame setup file You can enter additional allocations by adding additional PRB entries in the PRBs list To load a frame setup press the File Manager softkey in the root menu of the applica tion Select the file you want to load and activate it with the Load Demod Setup button M User Manual 1173 1433 02 04 72 R amp S FSV K10x LTE Uplink File Management SAVE RECALL Key Loading an UO File The R amp S FSV is able to process l Q data that has been captured with a R amp S FSV directly as well as data stored in a file You can store UO data in various file formats in order to be able to process it with other external tools or for support purposes UO data can be formatted either in binary form or as ASCII files The data is linearly scaled using the unit Volt e g if a correct display of Capture Buffer power is required For binary format data is expected as 32 bit floating point data Little Endian format also known as LSB Order or Intel format An example for binary data would be 0x1D86E7BB in hexadecimal notation is decoded to 7 0655481E 3 The order of the data is either IQIQIQ or II IQQ Q For ASCII format data is expected as and Q values in alternating rows separated by new lines lt I value 1 gt lt Q value 1 gt lt I value 2 lt Q value 2 gt To use data that has been stored externally press the File Manager softkey in the root menu o
107. lation type e Power Shows the power of the allocation in dBm e EVM User Manual 1173 1433 02 04 36 R amp S FSV K10x LTE Uplink Measurements and Result Displays Measuring Statistics Shows the EVM of the allocation The unit depends on your selection Remote command CALCulate lt n gt FEED STAT ASUM TRACe DATA Bit Stream Starts the Bit Stream result display This result display shows the demodulated data stream for each data allocation Depend ing on the Bit Stream Format the numbers represent either bits bit order or symbols symbol order Selecting symbol format shows the bit stream as symbols In that case the bits belonging to one symbol are shown as hexadecimal numbers with two digits In the case of bit format each number represents one raw bit Symbols or bits that are not transmitted are represented by a If a symbol could not be decoded because the number of layers exceeds the number of receive antennas the application shows a sign B Bit Stream Sub Allocation e Symbo Bit Stream ars D o3 m d bb oa HH HH HH 00 01 00 O The table contains the following information e Subframe Number of the subframe the bits belong to e Allocation ID Channel the bits belong to e Codeword Code word of the allocation e Modulation Modulation type of the channels e Symbol Bit Index e Bit Stream The actual bit stream Remote command CALCulate lt n gt FEED STAT
108. lic shift ncs used for the generation of the SRS CAZAC sequence EEUU RA N User Manual 1173 1433 02 04 60 R amp S FSV K10x LTE Uplink Configuring and Performing the Measurement a ee ee ee ee Se SS Defining Advanced Signal Characteristics Because the different shifts of the same Zadoff Chu sequence are orthogonal to each other applying different SRS cyclic shifts can be used to schedule different UE to simul taneously transmit their SRS Remote command CONFigure LTE UL SRS CYCS on page 120 Conf Index SRS Defines the configuration index of the SRS The configuration index lans is a cell specific parameter that determines the SRS perio dicity Tsrs and the SRS subframe offset CT el The effects of the configuration index on Tsrs and Tofset depends on the duplexing mode For more information refer to 3GPP TS 36 213 Table 8 2 1 FDD and 8 2 2 TDD Remote command CONFigure LTE UL SRS ISRS on page 120 Hopping BW b hop Defines the parameter bj Don is a UE specific parameter that defines the frequency hopping bandwidth SRS fre quency hopping is active if Drop lt Bags For more information refer to 3GPP TS 36 211 chapter 5 5 3 2 Mapping to Physical Resources for the Sounding Reference Signal Remote command CONFigure LTE UL SRS BHOP on page 119 5 7 3 Defining the PUSCH Structure The PUSCH structure settings contain settings that describe the physical attributes and structure
109. lity depends on the channel bandwidth The availability of SRS bandwidths additionally depends on the bandwidth configuration of the SRS Cgps For more information refer to 3GPP TS 36 211 chapter 5 5 3 2 Mapping to Physical Resources for the Sounding Reference Signal Remote command CONFigure LTE UL SRS BSRS on page 119 Freq Domain Pos n_RRC Defines the parameter ngre Nrrc is a UE specific parameter and determines the starting physical resource block of the SRS transmission For more information refer to 3GPP TS 36 211 chapter 5 5 3 2 Mapping to Physical Resources for the Sounding Reference Signal Remote command CONFigure LTE UL SRS NRRC on page 120 SRS BW Conf C_SRS Defines the bandwidth configuration of the SRS The bandwidth configuration is a cell specific parameter that in combination with the SRS bandwidth and the channel bandwidth defines the length of the souunding reference signal sequence For more information on the calculation refer to 3GPP TS 36 211 chap ter 5 5 3 Sounding Reference Signal Remote command CONFigure LTE UL SRS CSRS on page 119 Transm Comb k_TC Defines the transmission comb kc The transmission comb is a UE specific parameter For more information refer to 3GPP TS 36 211 chapter 5 5 3 2 Mapping to Physical Resources for the Sounding Reference Signal Remote command CONFigure LTE UL SRS TRComb on page 121 SRS Cyclic Shift N CS Defines the cyc
110. marker on the minimum value of the trace Suffix lt m gt 1 n Example CALC MARK MIN Positions marker 1 on the trace minimum Usage Event CALCulate lt n gt MARKer lt m gt STATe State This command turns markers on and off Suffix m 1 Parameters State ON OFF RST OFF Example CALC MARK3 ON Turns on marker 3 CALCulate lt n gt MARKer lt m gt TRACe Trace This command positions the marker on a particular trace If necessary the command turns on the marker first Suffix m 1 Parameters Trace 11213 Number of the trace you want the marker positioned on CALCulate lt n gt MARKer lt m gt X Position This command positions a marker on a particular coordinate on the x axis E M User Manual 1173 1433 02 04 127 R amp S FSV K10x LTE Uplink Remote Commands Analyzing Measurement Results If necessary the command first turns on the marker Suffix lt m gt 1 Parameters lt Position gt Numeric value that defines the marker position on the x axis Default unit The unit depends on the result display Example CALC MARK X 1GHZ Moves the marker to the frequency of 1 GHz CALCulate lt n gt MARKer lt m gt Y This command queries the position of a marker on the y axis If necessary the command activates the marker first To get a valid result you have to perform a complete measurement with synchronization to the end of the measurement before reading out the
111. measurements on and off If on the software evaluates the on periods of an LTE TDD signal only The software determines the location and length of the on period from the TDD UL DL Allocations and the Configuration of the Special Subframe Auto gating is available for TDD measurements in combination with an external or IF power trigger If you are using an external trigger the DUT has to send an LTE frame trigger Remote command SENSe SWEep EGATe AUTO on page 83 Span Defines the frequency span that is displayed in the frequency sweep result displays SEM and ACLR When the Auto Span is on the application automatically calculates the ideal span for the measured signal The ideal span for the signal depends on the channel bandwidth that you have selected Alternatively you can define the span manually when you turn the Auto Span off When you define the span manually you can enter any number that is greater than the span that would be calculated automatically This mechanism makes sure that the span is not too small for the signal bandwidth and the complete signal is displayed Nopte that changing the span only takes effect when you start a new measurement after you have changed the span 5 3 2 Configuring SEM Measurements The SEM settings are part of the Spectrum tab of the General Settings dialog box General MIMO Advanced Trigger EES SEM Settings Channel Category A pico M
112. messages are generally highlighted Display of measurement settings The header table above the result displays shows information on hardware and mea surement settings 1GHz Meas Setup TXx1RX Ext Att DL FDD 50 RB 10 MHz Normal CP Sync State OK Capture Time TRG FREE RUN The header table includes the following information User Manual 1173 1433 02 04 15 R amp S FSV K10x LTE Uplink Welcome e Freq The analyzer RF frequency e Mode Link direction duplexing cyclic prefix and maximum num blocks PRBs signal bandwidth e Meas Setup Shows number of transmitting and receiving antennas e Sync State The following synchronization states may occur OK The synchronization was successful FAIL The synchronization has failed SCPI Command SENSe SYNC STATe on page 84 e Ext Att Shows the external attenuation in dB e Capture Time Shows the capture length in ms 2 3 Support Support ber of physical resource If you encounter any problems when using the application you can contact the Rohde amp Schwarz support to get help for the problem To make the solution easier use the R amp S Support softkey to export useful information for troubleshooting The R amp S FSV stores the information in a located in the R amp S FSV directory C R_S Instr user LT number of files that are ENSupport If you contact Rohde amp Schwarz to get help on a certain p
113. mote Commands to Configure the Application 8 7 1 1 Defining Signal Characteristics CORFIGUrE EL TE DUPLO Ss iut cs nien vate ea e tetra icu nte pu etd eere Deep tuner E 103 QONFigure EE Een eech EENS ee eterne erroe 103 CON Figure iE TE ULABW Mec 103 CONFigure pL TEEUL CET ENEE scence tedden tere prt ERAN en rene E eee added 103 CON Figure Fl TEI UN ORB EE 104 ISENZGelFbRtOuencv CENT er 104 CONFigure LTE DUPLexing lt Duplexing gt This command selects the duplexing mode Parameters lt Duplexing gt TDD Time division duplex FDD Frequency division duplex RST FDD Example CONF DUPL TDD Activates time division duplex CONFigure LTE LDIRection Direction This command selects the link direction Parameters lt Direction gt DL Downlink UL Uplink Example CONF LDIR DL EUTRA LTE option is configured to analyze downlink signals CONFigure LTE UL BW lt Bandwidth gt This command selects the uplink bandwidth Parameters lt Bandwidth gt BW1_40 BW3_00 BW5_00 BW10_00 BW15_00 BW20_00 Example CONF UL BW BW1 40 Sets a signal bandwidth of 1 4 MHz in uplink CONFigure L TE UL CYCPrefix lt PrefixLength gt This command selects the cyclic prefix for uplink signals E N User Manual 1173 1433 02 04 103 R amp S FSV K10x LTE Uplink Remote Commands 8 7 1 2 Remote Commands to Configure the Application Parameters lt PrefixLength gt NORM Normal cyclic prefix length EXT
114. nary characters and depends on the format you have set with FORMat DATA Following this detailed description you will find a short summary of the most important functions of the command TRACe DATA e Adjacent Channel Leakage Ratio eerte 92 Allocation SUID BE eere ertet nee temen eege dee eneen 93 CUM BIL SUCAIN E LLLI EMT 93 Capture BUM aree teer er eere lente re ee ENNEN EXE Yee 1n 94 NH EE erugeet 94 e Channel Falli SS eneceede etd ere dee a etd an e a Rad eda aate a 95 e Channel Flatness DEn aeree erre re nde shad ave ei ree seek te nee ghe 95 e Channel Group Delay tim gd 95 ET RR EE 96 E KE nn ET 96 e EVM vs Symbol Seene ae dE Ee 97 e EVI WS SUbITAlYe reete na e HP nandendcesaneddendcvnasanacededgsaasaiteltn desabnnadedcenaeeae 97 e Frequency Error vs Symbol reete petto ettet roe DESEN aede esas 97 e Inbarid EMISSION eere eere eer eoe RET rH EE eH as ERU Ee EEN ed 97 CNES LO goo CUM EE 98 e Spectrum Emission Mask 98 Feet Value Ee dreet nepote rege catabandauasiandundadanhsaadendsanatnaddeusesnaoteasaees 98 8 6 1 1 Adjacent Channel Leakage Ratio For the ACLR result display the number and type of returns values depend on the parameter e TRACE1 Returns one value for each trace point e LIST Returns the contents of the ACLR table For each channel it returns six values Xchannel type bandwidth spacing offset power of lower channel p
115. nd CONFigure LTE UL PUSCh NOSM on page 122 Info in Hopping Bits Defines the information available in the hopping bits according to the PDCCH DCI format 0 hopping bit definition The information in the hopping bits determines whether type 1 or type 2 hopping is used in the subframe and in case of type 1 additionally determines the exact hopping function to use For more information on PUSCH frequency hopping refer to 3GPP TS36 213 Remote command CONFigure LTE UL PUSCh FHOP IIHB on page 122 5 7 4 Defining the PUCCH Structure The PUCCH structure settings contain settings that describe the physical attributes and structure of the PUCCH The PUCCH structure is part of the Uplink Adv Sig Config tab of the Demodulation Settings dialog box IECH User Manual 1173 1433 02 04 62 R amp S FSV K10x LTE Uplink Configuring and Performing the Measurement EES Defining Advanced Signal Characteristics UL Demod UL Frame Config URES et a PUCCH Structure Num of RB for PUCCH 0 Delta Shift 2 Delta Offset 0 N 1 cs 6 N 2 RB 1 Format F1 normal H PUCCH o lettre geesde TES 63 Deka EE 63 RE ET 63 EE 64 Sol EE 64 au gr EUM 64 M sed e 64 No of RBs for PUCCH Defines the number of resource blocks reserved for PUCCH The resource blocks for PUCCH are always allocated at the edges of the LTE spectrum In case of an even number of PUCCH re
116. nlink S special subframe Conf of Special Subframe In combination with the cyclic prefix the special subframes serve as guard periods for switches from uplink to downlink They contain three parts or fields e DwPTS The DwPTS is the downlink part of the special subframe It is used to transmit down link data e GP The guard period makes sure that there are no overlaps of up and downlink signals during a switch e UpPTS The UpPTS is the uplink part of the special subframe It is used to transmit uplink data E N User Manual 1173 1433 02 04 53 R amp S FSV K10x LTE Uplink Configuring and Performing the Measurement El Configuring Uplink Frames The length of the three fields is variable This results in several possible configurations of the special subframe The LTE standard defines 9 different configurations for the spe cial subframe However configurations 7 and 8 only work for a normal cyclic prefix If you select it using an extended cyclic prefix or automatic detection of the cyclic prefix the application will show an error message Remote command Subframe CONFigure LTE UL TDD UDConf on page 114 Special Subframe CONFigure LTE UL TDD SPSC on page 114 5 6 2 Configuring the Physical Layer Cell Identity The physical signal characteristics contain settings to describe the phyiscal attributes of an LTE signal The physical settings are part of the Frame Configuration tab of the Demodulation Se
117. nnel Bandwidth esee Channel Estimation Range don P Compensate DC Offset Conf Index I SRS orent retten Configurable Subframes BEROES E E E ne enenhdes Delta Sequence Shift eene Delta Shift Digital Input Data Rate sees Ext Att Format Frame Number Offset cene 55 Freq Domain Pos n RRC esee 60 Frequency KR Frequency Hopping Mode sseeeeeseeeeeererreerrrree 61 Full Scale Level rorem 50 Group Hopping Hopping BW b hop p EE Info in Hopping Bits 1 NUD RMS rtr teh rere erre ORE ETEA nop ee cur D M E ML I N PUCCH MEDECIN IN 2 RB ini E Number of RB Number of RBs for PUCCH ce cecccceeeeeneeeeees 63 Number of SubbandS cccccccccccecccccceeeeeeeeeeeeeeeees 62 Phase Present e Mr 59 PUSCH Hopping Offset sss 62 Ref Level Relative Power PUCCH ss 57 Relative Power PUSCH ees 57 Rel Power Scrambling of coded bits eesssssssse 51 fne ERR E 57 Sequence Hopping SOUNGE ME 49 SRS Bandwidth B SRS sss 60 SRS BW Conf C SRS SRS Cyclic Shift N CS SRS Subframe Conte 59 icr M 40 suppressed interference synchronization 51 Swap W O EE 48 TDD UL DL Allocation
118. nr s et nes eere tns enean 132 TRACe IQ FILTer FLATness TRACSRDATA pc DE 99 TRIGger SEQuence HOLDoff analyzer eese enne n rene eee tere tenente enne nnns 108 TRIGger SEQuencel FPower HOL Doft 109 TRIGger SEQuenceJ IFPower HYSTeresis essere nennen trennen nennen nnns 109 TRlGoert GEOuencelL EVel analvzerz POMWer nennen neret ren nenne enne 109 bloen Senegal INIT BS ER E s UNITE EVM eka SENSe FREQuency CENTer SENSe POWer ACHannel AACHannel essen enneen nent rennes en ere enr ee tree trennen een 81 IEN Gel POWer AC Hanne BANDwidtb CHANnel nennen ennemi EN SENSe POWer ACHannel SPACing CHANnel cesses enne eene nnreen nre en nest en 81 IGENZGel POWer ACHannel TvCHannels COUN nennen enne rnnt rennen ntn nennen nenne 82 SENSe POWer AUTO lt analyzer gt TIME 107 _ Lh gt RU RAE E SSS User Manual 1173 1433 02 04 135 IEN Gel POWer AUTO anavzerztGTatel rennen rennen nere 106 EISEN e Ee eet TE 82 SENSe EPOW6RSEM CA LOG EE 82 SENSe SWAP E 110 IENGel SwWEenEGATe AUTO 83 SENSe SWEep TIME Gei IS ETIESPANeBSIELIE CB 84 SENSe ETE FRRAM6 COUNE EE 107 IGENGelt LTEIERAMeCOUN AUTO 107 IGENGelLTEIERAMeCOUN STATe nennen rtr eter trennen trennen erret nns 108 EISE NENT ET EE 125 IS ET IIHRSIENIEBI
119. ns for selecting SC FDMA as LTE uplink access scheme The PAPR characteristics are important for cost effective design of UE power amplifiers Still SC FDMA signal processing has some similarities with OFDMA signal processing so parameterization of downlink and uplink can be harmonized There are different possibilities how to generate an SC FDMA signal DFT spread OFDM DFT s OFDM has been selected for EUTRA The principle is illustrated in figure 1 1 For DFT s OFDM a size M DFT is first applied to a block of M modulation symbols QPSK 16QAM and 64 QAM are used as uplink EUTRA modulation schemes the latter being optional for the UE The DFT transforms the modulation symbols into the frequency domain The result is mapped onto the available sub carriers In EUTRA uplink only localized transmission on consecutive sub carriers is allowed An N point IFFT where N gt M is then performed as in OFDM followed by addition of the cyclic prefix and parallel to serial conversion IncoringBit eam Channel By Fig 1 1 Block Diagram of DFT s OFDM Localized Transmission User Manual 1173 1433 02 04 9 R amp S FSV K10x LTE Uplink Introduction 1 2 2 1 2 3 Long Term Evolution Uplink Transmission Scheme The DFT processing is therefore the fundamental difference between SC FDMA and OFDMA signal generation This is indicated by the term DFT spread OFDM In an SCFDMA signal each sub carrier used for transmission contains info
120. nte tet pet educ g eu 90 FETCh SUMMary POWer AVERage esses eese nenne nennen entente nnns enne tne nettes enne sitne nnne 90 FE TCh SUMMarv OUlADerror MA Nimum ener nmentnre enr se tenens ee nnr entes etnies 90 FE TCh SUMMarv OUlADerror MINIMUM nennen nemen retenir en rrnet ers enrs enne enne nnns 90 FE TCh SUMMarv OUlADerrort AVERagef nennen nnne rennen neret rennen trennen 90 FETCh SUMMary RSTP MAXimum FETChH SUMMary RS TP MINIMUNN 22 cci tre ree pd decent etui ete c e tp rn dant daro 90 FETCh SUMMary SERRor MAXimum ssesssseeseeeeeeeneneee nennen enne tereti terrre t nr enne ert nen enne eneee net 91 FETCh iSUMMary SERROEMINImUtTI 1er tertie tete et Ebene ta hrec peragere enar e e Ein fni EER AER 91 FETCh SUMMary SERRor AVERage sess nnne enne ren nee eterne rns etnse tnit n senes 91 FETCH SUMMaiy TF Ratrie iocai rte et n gh ue e e TT E oe De Oe rd e a eve DR den 91 ze CUM DNE YE 132 INi Tiat CONTINUOUS c EEEEEdEE SANS 83 KINNTE 84 Jl MER ET EE 83 INPULSELOCt a eher ee iesse lee nae dean ended debe ariel 110 INP t lt n gt AT TENUATON EE 105 INbPutznzs DIORANGe Uppert 111 INPutsn gt DI SRA Tei TEE 111 buten EAT ee 106 INbutzns EATT AUTO 106 INPut lt n gt EAT TESTA NEE 106 MMEMory LOAD DEModsetting ssesssessseeesseeneenneeneee nnne nree n rennnrsennr e
121. nts and Result Displays Numerical Results 4 Measurements and Result Displays The LTE measurement application features several measurements to examine and ana lyze different aspects of an LTE signal The source of the data that is processed is either a live signal or a previously recorded signal whose characteristics have been saved to a file For more information see Select ing the Input Source on page 49 e DEI 23 e Measuring the Power Over TIEEIG creer Leiter ES 25 e Measuring the Error Vector Magnitude EVNM A 26 Measuring the SpeCtruM 02 cccccecccceeesceccceecaeacecneeeenantateceeeaensebedeseadabebeceseeee 29 e Measuring the Symbol Constellation eene nnne nnesn nnn 34 e Messung WE EE 35 4 1 Numerical Results Result SUMMA M 23 Result Summary The Result Summary shows all relevant measurement results in numerical form com bined in one table gt Press the Display List Graph softkey so that the List element turns blue to view the Result Summary SCPI command DISPlay WINDow lt n gt TABLe on page 80 Contents of the result summary Result Summary Subfrar ppm dB dB drature Error S dBm dB LEE User Manual 1173 1433 02 04 23 R amp S FSV K10x LTE Uplink Measurements and Result Displays Numerical Results The table is split in two parts The first part shows results that refer to the complete frame It also indicates limit check results where available The font
122. o 3 RST 0 Example CONF UL PUSC FHOP IIHB 1 Defines type 1 as the information in hopping bits CONFigure LTE UL PUSCh NOSM lt NofSubbands gt This command defines the number of subbands M of the PUSCH Parameters lt NofSubbands gt lt numeric value gt RST 4 Example CONF UL PUSC NOSM 2 Sets the number of subbands to 2 ES User Manual 1173 1433 02 04 122 R amp S FSV K10x LTE Uplink Remote Commands Remote Commands to Configure the Application 8 7 5 4 Defining the PUCCH Structure CONFIgure FETE UL PUC CH DEOF eb eessen a NEEN 123 CONFISurerETEEBEIPUGCChIUDESPMUIfU cine tridente etuer taceo Ende ade dete de ces 123 CONFigurerETEEULIPUCOhIFOBML eneen 123 CONFigureE ETEEULIPUCChINTQS EE 124 GONFIgure E TELEULDEPUCGh NGRB EE 124 GONFigurer ETEEBEIPUCCh NORB occ eran cnr roro rper rn tree ne ten nnn Ea ne 124 GONFIgure ETEEULIPUGCh NEEN ANS aiee a 2o cud ex MER RR e mann PRU eren Reine Dice ia 124 CONFigure L TE UL PUCCh DEOFfset Offset This command defines the delta offset of the PUCCH Parameters Offset numeric value Range 0 to 2 RST 0 Example CONF UL PUCC DEOF 2 Sets the delta offset to 2 CONFigure L TE UL PUCCh DESHift Shift This command defines the delta shift of the PUCCH Parameters Shift numeric value Range 1 to 3 RST 2 Example CONF UL PUCC DESH 3 Sets the delta shift of the PUCCH to 3 CONFigure L TE UL PUCCh F
123. o its left the second TX channel CuO those to its right e Bandwidth Shows the bandwidth of the channel e Spacing Shows the channel spacing User Manual 1173 1433 02 04 31 R amp S FSV K10x LTE Uplink Measurements and Result Displays Measuring the Spectrum e Lower Upper Shows the relative power of the lower and upper adjacent and alternate channels e Limit Shows the limit of that channel if one is defined Ref 26 2 dBm ATE 0 00 0 00 dB Spacing Upper 10 00 MHz Remote command Selection CALCulate lt n gt FEED SPEC ACP Reading results CALCulate lt n gt MARKer lt m gt FUNCtion POWer RESult CURRent on page 101 TRACe DATA 4 4 2 UO Measurements e WABAAG Bn Ee EE 32 e Flatness Flat Grdel Dm 33 4 4 2 1 Inband Emissions Inband Emission Starts the Inband Emission result display This result display shows the relative power of the unused resource blocks yellow trace and the inband emission limit lines red trace specified by the LTE standard document 3GPP TS36 101 The measurement is evaluated over the currently selected slot in the currently selected subframe The currently selected subframe depends on your selection Note that you have to select a specific subframe and slot to get valid measurement results E N User Manual 1173 1433 02 04 32 R amp S FSV K10x LTE Uplink Measurements and Result Displays Measuring the Spectrum A Rel Inband Emi
124. of Pass results is green and that of Fail results is red In addition to the red font the application also puts a red star GMM in front of failed results e EVM PUSCH QPSK Shows the EVM for all QPSK modulated resource elements of the PUSCH channel in the analyzed frame FETCh SUMMary EVM USQP AVERage on page 88 e EVM PUSCH 16QAM Shows the EVM for all 16QAM modulated resource elements of the PUSCH channel in the analyzed frame FETCh SUMMary EVM USST AVERage on page 88 e EVM DRMS PUSCH QPSK Shows the EVM of all DMRS resource elements with QPSK modulation of the PUSCH in the analyzed frame FETCh SUMMary EVM SDQP AVERage on page 87 e EVM DRMS PUSCH 16QAM Shows the EVM of all DMRS resource elements with 16QAM modulation of the PUSCH in the analyzed frame FETCh SUMMary EVM SDST AVERage on page 87 By default all EVM results are in To view the EVM results in dB change the EVM Unit The second part of the table shows results that refer to a specifc selection of the frame The statistic is always evaluated over the slots The header row of the table contains information about the selection you have made like the subframe e EVMAII Shows the EVM for all resource elements in the analyzed frame FETCh SUMMary EVM ALL AVERage on page 86 e EVM Phys Channel Shows the EVM for all physical channel resource elements in the analyzed frame FETCh SUMMary EVM PC
125. of physical quantities you can also add the unit If the unit is missing the command uses the basic unit Example with unit SENSe FREQuency CENTer 1GHZ without unit SENSe FREQuency CENTer 159 would also set a frequency of 1 GHz Values exceeding the resolution of the instrument are rounded up or down If the number you have entered is not supported e g in case of discrete steps the command returns an error Instead of a number you can also set numeric values with a text parameter in special cases e MIN MAX Defines the minimum or maximum numeric value that is supported e DEF Defines the default value User Manual 1173 1433 02 04 77 R amp S FSV K10x LTE Uplink Remote Commands 8 2 6 2 8 2 6 3 Introduction e UP DOWN Increases or decreases the numeric value by one step The step size depends on the setting In some cases you can customize the step size with a corresponding command Querying numeric values When you query numeric values the system returns a number In case of physical quan tities it applies the basic unit e g Hz in case of frequencies The number of digits after the decimal point depends on the type of numeric value Example Setting SENSe FREQuency CENTer 1GHZ Query SENSe FREQuency CENTer would return 1E9 In some cases numeric values may be returned as text e INF NINF Infinity or negative infinity Represents
126. of the PUSCH The PUSCH structure is part of the Uplink Adv Sig Config tab of the Demodulation Settings dialog box UL Demod UL Frame Config ETAIT a PUSCH Structure Freq Hopping Mode Off PUSCH Hopping Offset 4 Number of Subbands 4 Info in Hopping Bits 0 Frequency Hopping Mode 61 PUSCH ROP ping Ben EE 62 E lu ee EE 62 iio in PIC PP ihe cet 62 Frequency Hopping Mode Selects the frequency hopping mode of the PUSCH User Manual 1173 1433 02 04 61 R amp S FSV K10x LTE Uplink Configuring and Performing the Measurement a ee ee ee Se Se Defining Advanced Signal Characteristics Several hopping modes are supported e None No frequency hopping e Inter Subframe Hopping PUSCH changes the frequency from one subframe to another e Intra Subframe Hopping PUSCH also changes the frequency within a subframe Remote command CONFigure LTE UL PUSCh FHMode on page 121 PUSCH Hopping Offset Defines the PUSCH Hopping Offset Nap The PUSCH Hopping Offset determines the first physical resource block and the maxi mum number of physical resource blocks available for PUSCH transmission if PUSCH frequency hopping is active Remote command CONFigure LTE UL PUSCh FHOFfset on page 122 Number of Subbands Defines the number of subbands reserved for PUSCH For more information refer to 3GPP TS 36 211 chapter 5 5 3 2 Mapping to Physical Resources for the Sounding Reference Signal Remote comma
127. offset or trigger delay The trigger offset is the time that should pass between the trigger event and the start of the measurement The trigger offset may be a negative time The trigger offset is then called a pretrigger The trigger offset is available for all trigger modes except free run A trigger event usually is a certain level value The trigger hysteresis defines a distance to the trigger level that the input signal must stay below in order to fulfill the trigger con dition If you want to have a minimum time between indivudual measurements set a trigger holdoff A trigger holdoff defines a waiting period that must at least pass between one trigger event and the next Remote command For a comprehensive list of commands to define trigger characteristics see chap ter 8 7 1 4 Triggering Measurements on page 108 5 3 Configuring Spectrum Measurements The Spectrum settings contain parameters to configure spectrum measurements ACLR and SEM in particular 5 3 1 General ACLR and SEM Configuration The gate settings settings are part of the Spectrum tab of the General Settings dialog box User Manual 1173 1433 02 04 45 R amp S FSV K10x LTE Uplink Configuring and Performing the Measurement a ee rer a ees ee ee eee Configuring Spectrum Measurements General Advanced Trigger SEM ACLR Settings Auto Gating Span Auto Span 35 MHz E e DEE 46 SOI EE 46 Auto Gating Turns gating for SEM and ACLR
128. ommon phase error fj received sample in the time domain Rx uncompensated received sample in the frequency domain User Manual 1173 1433 02 04 17 R amp S FSV K10x LTE Uplink Measurement Basics Eh 3 2 Overview Tal equalized received symbols of measurement path after IDFT T duration of the useful part of an SC FDMA symbol Tg duration of the guard interval Ts total duration of SC FDMA symbol Overview The digital signal processing DSP involves several stages until the software can present results like the EVM Data Capture Synchronizati ynchronization E UTRA LTE uplink Channel estimation equalization measurement application Analysis The contents of this chapter are structered like the DSP The LTE Uplink Analysis Measurement Application The block diagram in figure 3 1 shows the general structure of the LTE uplink measure ment application from the capture buffer containing the UO data up to the actual analysis block After synchronization a fully compensated signal is produced in the reference path pur ple which is subsequently passed to the equalizer An IDFT of the equalized symbols yields observations for the QAM transmit symbols a from which the data estimates n are obtained via hard decision Likewise a user defined compensation as well as equalization is carried out in the measurement path cyan and after an IDFT the obser vations of the QAM transmit symbols are provided Ac
129. ote command Cell ID CONFigure LTE UL PLC CID on page 114 Cell Identity Group CONFigure LTE UL PLC CIDGroup on page 115 Identity CONFigure LTE UL PLC PLID on page 115 5 6 3 Configuring Subframes An LTE frame consists of 10 subframes Each individual subframe may have a different resource block configuration This configuration is shown in the Subframe Configuration Table The application supports two ways to determine the characteristics of each subframe e Automatic demodulation of the channel configuration and detection of the subframe characteristics In case of automatic demodulation the contents of the table are determined accord ing to the signal currently evaluated For more information see Auto Demodulation on page 51 e Custom configuration of the configuration of each subframe Frame number offset A frame number offset is also available The frame number offset assigns a number to the demodulated frame in order to identify it in a series of transmitted and captured frames Subirame Gonfiguratiom Table EE 55 Subframe Configuration Table The Subframe Configuration Table contains the characteristics for each subframe The software supports a maximum uplink LTE frame size of 10 subframes The subframe number in the table depends on the number of Configurable Subframes that you have defined or that have been detected in case of automatic demodulation Each row of the table
130. ower Re BE 57 Relative Power PUGCGCGHL ac ti Eed AE S deu 57 GUP IOP IAG ccn e ponte nnnm ax uen Inna EU ERER ERR EUR SNR nane ecnsiseudedensneseededsosdassaasurades 58 Sequence ee H 58 RE UE TT 58 SIDEN 58 Enable E 58 Sequence Selects the definition the demodulation reference signal is based on 3GPP The structure of the DRS is based on the 3GPP standard If you are using a DRS based on 3GPP you have to set all parameters in the Demodulation Reference Signal settings group They have to be the same as those of the signal generator Relative Power PUSCH Defines the power of the DMRS relative to the power level of the PUSCH allocation in the corresponding subframe Ppmrs offset The effective power level of the DMRS depends on the allocation of the subframe and is calculated as follows Pomrs Pue Peuscu Pomrs_oftset The relative power of the DMRS is applied to all subframes The power of the PUSCH Ppyscy may be different in each subframe Remote command CONFigure LTE UL DRS PUSCh POWer on page 118 Relative Power PUCCH Defines the power of the DMRS relative to the power level of the PUSCH allocation in the corresponding subframe Dous oret The effective power level of the DMRS depends on the allocation of the subframe and is calculated as follows Pomrs Pue Peuccu Bouss oriset The relative power of the DMRS is applied to all subframes User Manual 1173 1433 02 04 57 R amp S FSV K10x
131. ower of upper channel limit The unit of the bandwidth and spacing offset is Hz The unit of the power values is either dBm for the TX channel or dB for the neighboring channels The unit of the limit is dB The channel type is encoded For the code assignment see chapter 8 6 1 17 Return Value Codes on page 98 EEUU RA N User Manual 1173 1433 02 04 92 R amp S FSV K10x LTE Uplink Remote Commands Deeg 8 6 1 2 Remote Commands to Read Trace Data Note that the TX channel does not have a spacing offset gt lt power of lower channel and limit NaN is returned instead Allocation Summary For the Allocation Summary the command returns seven values for each line of the table subframe allocation ID number of RB offset RB modulation absolute power lt EVM gt The unit for absolute power is always dBm The unit for EVM depends on UNIT EVM All other values have no unit The allocation ID and modulation are encoded For the code assignment see chapter 8 6 1 17 Return Value Codes on page 98 Note that the data format of the return values is always ASCII Example Allocation Summary Sub frame 8 6 1 3 Kei Modulation ower EVM PUSCH 2 0 002 DMRS TRAC DATA TRACE1 would return 0 40 10 2 2 84 7431947342849 2 68723483754626E 06 0 41 0 0 6 84 7431432845264 2 37549449584568E 06 0 42 0 0
132. p S FSV evaluates the number of frames as defined for EVM tests in the LTE standard If inactive you can set the number of frames you want to analyze This parameter is not available if the overall frame count is inactive Remote command SENSe LTE FRAMe COUNt AUTO on page 107 5 2 4 Triggering Measurements The trigger settings contain settings that control triggered measurements The trigger settings are part of the Trigger tab of the General Settings dialog box General MIMO Advanced epp Spectrum Trigger Settings Trigger Mode Free Run Trigger Offset Os Trig Holdoff 150 ns Trig Hysteresis 3 dB Trigger Level 0 For more information also see Auto Gating in the Spectrum tab of the General Set tings dialog box Contiguring the rte EE 44 Configuring the Trigger A trigger allows you to capture those parts of the signal that you are really interested in While the R amp S FSV runs freely and analyzes all signal data in its default state no matter if the signal contains information or not a trigger initiates a measurement only under certain circumstances the trigger event The R amp S FSV supports several trigger modes or sources e Free Run Starts the measurement immediately and measures continuously e External The trigger event is the level of an external trigger signal The measurement starts when this signal meets or exceeds a specified trigger level at the Ext Trigger Gate
133. pending on the last com mand syntax element The unit is or dB depending on your selection Example FETC SUMM EVM PCH Returns the mean value Usage Query only FETCh SUMMary EVM PSIGnal MAXimum FETCh SUMMary EVM PSIGnal MINimum FETCh SUMMary EVM PSIGnal AVERage This command queries the EVM of all physical signal resource elements Return values lt EVM gt lt numeric value gt Minimum maximum or average EVM depending on the last com mand syntax element The unit is or dB depending on your selection Example FETC SUMM EVM PSIG Returns the mean value Usage Query only FETCh SUMMary EVM SDQP AVERage This command queries the EVM of all DMRS resource elements with QPSK modulation of the PUSCH Return values lt EVM gt lt numeric value gt EVM in or dB depending on the unit you have set Example FETC SUMM EVM SDOP Returns the EVM of all DMRS resource elements with QPSK mod ulation Usage Query only FETCh SUMMary EVM SDST AVERage This command queries the EVM of all DMRS resource elements with 16QAM modulation of the PUSCH Return values lt EVM gt lt numeric value gt EVM in or dB depending on the unit you have set IESSE User Manual 1173 1433 02 04 87 R amp S FSV K10x LTE Uplink Remote Commands REESEN Remote Commands to Read Numeric Results Example FETC SUMM EVM SDST Returns the EVM of all DMRS resource elements wit
134. points on traces or to read out measurement results User Manual 1173 1433 02 04 69 R amp S FSV K10x LTE Uplink Analyzing Measurement Results Using Markers B EVM vs Carrier 1 54 MHz div Fig 6 3 Example Marker The MKR key opens the corresponding submenu You can activate up to four markers with the Marker lt x gt softkeys The first marker is always a normal marker Markers 2 to 4 are delta marker by default The reference marker for the delta marker is marker 1 You can turn all delta markers into normal markers with the Marker Norm Delta softkey After pressing the Marker lt x gt softkey you can set the position of the marker in several ways e Enter a frequency value in the marker input field e Move the marker with the rotary knob e Position the marker to the trace minimum or trace maximum with the Marker Max or Marker Min softkeys The current marker frequency and the corresponding level is displayed in the upper right corner of the trace display The Marker lt x gt softkey have three possible states e If the Marker lt x gt softkey is black the marker is off Marker 1 e After pressing the Marker lt x gt softkey it turns orange to indicate an open dialog box and the the marker is active The dialog box to specify the marker position on the frequency axis opens Marker 1 Marker Frequency X e After closing the dialog box the Marker lt x gt softk
135. r t X 2 iiie idees ese ceg atio ERE n gabe ed ka die Da beast bea du pua e daa D dcn pd pda pd 130 CALCulate n DELTamarker rm Y9 eias cendi lapain koe La Esp ada danda aa nadadaan 130 CALOCulate n DELTamarker m STATe sess rennrsenr eere nnnen 129 CALC latesn gt ii m c 79 CAL Culate cnz MAb kercmzAOEE tenere ennt sehn ntis hh nntd sen henr ssi t entr s et AEAEE EEES EEEE sena 126 CAL Culate cnz MAb ker mz EUNGCion POWerRE Gut Cent 101 CAL Culate cnz MAbRker mz MAimumf PDEART enne nene se nnnnnn enne renn sen nrnnr nnn 127 CAL Culate cnz MAbRker mz MiNimum PEART nennen nennen enne tnnt enne 127 CAL Culate nz MAbker mzMiNimumf PEART eene enne enne enmt nnns ennt nnn 129 CALCulate lt n gt MARKer lt m gt TRACE seinen seines s einnts ses nnts shirts dai SNESE E EENEN nde n nn 127 CALC latesn gt MARKersm gt C S 127 e Ee niic une ani aan 128 CALCulate n MARKer m STATe eese eene nnne nnne nentes nnen nente nne nnne nns nnn nnns 127 CONFigure POWer EXPected lO lt analyZer gt cccscscsssccasssessscenssenensseensaceasensesecceaceneunsensensonsesneneeneanenseoaas 105 CONFioure POWer Evbeched RE anahyzerz eene enne re enreennenen reset nns sense res snnneis 105 CONFiguire PRES tis EE 132 CONFi
136. rce is baseband Parameters lt RefLevel gt lt numeric value gt Range 31 6 mV to 5 62 V RST 1V Default unit V Example CONF POW EXP IQ2 3 61 Sets the baseband reference level used by analyzer 2 to 3 61 V CONFigure POWer EXPected RF lt analyzer gt lt RefLevel gt This command defines the reference level when the input source is RF Parameters lt RefLevel gt RST 30 dBm Default unit DBM Example CONF POW EXP RF3 20 Sets the radio frequency reference level used by analyzer 3 to 20 dBm DISPlay WINDow lt n gt TRACe lt t gt Y SCALe RLEVel OFFSet lt Attenuation gt This command selects the external attenuation or gain applied to the RF signal Parameters lt Attenuation gt lt numeric value gt RST 0 Default unit dB Example DISP TRAC Y RLEV OFFS 10 Sets an external attenuation of 10 dB INPut lt n gt ATTenuation lt analyzer gt lt Attenuation gt This command sets the RF attenuation level Parameters lt Attenuation gt lt numeric value gt RST 5 dB Default unit dB Example INP ATT 10 Defines an RF attenuation of 10 dB LEE User Manual 1173 1433 02 04 105 R amp S FSV K10x LTE Uplink Remote Commands a MN M Qu nei Remote Commands to Configure the Application INPut lt n gt EATT lt Attenuation gt This command defines the electronic attenuation level If the current reference level is not
137. rd subframe shows the averaged level characteristics of all subframes with Si e PK peak value e AV average value e MI minimum value If you select a specific subframe the application shows one trace This trace contains the results for that subframe only Remote command SENSe LTE SUBFrame SELect on page 125 6 2 Defining Measurement Units In the Units tab of the Measurement Settings dialog box you can select the unit for various measurement results EVM Unit Selects the unit for graphic and numerical EVM measurement results Possible units are dB and Remote command UNIT EVM on page 126 6 3 Defining Various Measurement Parameters In the Misc tab of the Measurement Settings dialog box you can set various param eters that affect some result displays Bit Stream Format Selects the way the bit stream is displayed The bit stream is either a stream of raw bits or of symbols In case of the symbol format the bits that belong to a symbol are shown as hexadecimal numbers with two digits Examples ____SS__S SSSR User Manual 1173 1433 02 04 67 R amp S FSV K10x LTE Uplink Analyzing Measurement Results Selecting the Contents of a Constellation Diagram B Bit Stream Sub Modulation Symbo sit Stream frame O 00 3 0 03 01 OO OO 01 o B Bit Stream Sub Modulation Bit Stream 001011001111000111110111010000011010110110111011 00000101101011111010101010000001
138. re complex measurement setups 5 4 1 Controlling UO Data The UO settings contain settings that control the UO data flow The l Q settings are part of the Advanced Settings tab of the General Settings dialog box General MIMO Advanced Trigger Spectrum IQ Settings Swap IQ cir ir t 48 Swap UO Swaps the real I branch and the imaginary Q branch parts of the signal Remote command SENSe SWAPiq on page 110 5 4 2 Controlling the Input The input settings contain settings that control the input source The input settings are part of the Advanced Settings tab of the General Settings dialog box LEE User Manual 1173 1433 02 04 48 R amp S FSV K10x LTE Uplink Configuring and Performing the Measurement EENEG Advanced General Settings General MIMO Advanced Trigger Spectrum Input Settings Source RF Auto Level Ka Auto Level Track Time 100 ms Ref Level 10 dBm RF Attenuation 10 dB For more information on reference level see Defining a Reference Level on page 41 For more information on signal attenuation see Attenuating the Signal on page 42 selecting the Input ee 49 Selecting the Input Source The input source selects the source of the data you d like to analyze You can either analyze a live signal or a signal that has been recorded previously and whose charac teristics have been saved to a file
139. rements Spectrum Mask Starts the Spectrum Emission Mask SEM result display The Spectrum Emission Mask measurement shows the quality of the measured signal by comparing the power values in the frequency range near the carrier against a spectral mask that is defined by the 3GPP specifications In this way you can test the performance of the DUT and identify the emissions and their distance to the limit In the diagram the SEM is represented by a red line If any measured power levels are above that limit line the test fails If all power levels are inside the specified limits the test is passed The R amp S FSV puts a label to the limit line to indicate whether the limit check passed or failed The x axis represents the frequency with a frequency span that relates to the specified EUTRA LTE channel bandwidths On the y axis the power is plotted in dBm E SSS User Manual 1173 1433 02 04 29 R amp S FSV K10x LTE Uplink Measurements and Result Displays Measuring the Spectrum B Spectrum Emission Mask SWT 457 50 ms Detector RMS 4 00 MHzidiv A table above the result display contains the numerical values for the limit check at each check point e Start Stop Freq Rel Shows the start and stop frequency of each section of the Spectrum Mask relative to the center frequency e RBW Shows the resolution bandwidth of each section of the Spectrum Mask e Freq at A to Limit Shows the absolute frequency whose power measur
140. rence wee 94 Compensate DC Offset 50 channel flatness grdel 9 Configurable Subframes 4 55 constellation vie D Configuration Table 55 EVM vs carrier wa 26 Constellation diagram 35 EVM vs subframe we 28 Constellation Selection sss 68 EVM vs symbol 2 27 Conventions inband emission 32 SCPI commands rte 75 numerical 23 result summary 23 D spectrum mask 29 ol 69 Demodulation reference signal sssssss 56 Demodulation Reference Signal N Delta Sequence Shift eee 58 Enable ri PRS iios tere tere ro Det bere tod nbn dees 58 Number Of RB be 40 Gro p HOPPING EE 58 Numerical results eere etre nnns 23 n DRMS ab Relative Power PUCCH seen 57 P Relative Power PUSCH ecce cee eeneeeeeeneeeeeee 57 Sequence mur az 52 Sequence Hopping ccccsccsecsecsssseecsesseeseeseeseeseeneesees 58 PUCCH Structure Dialog Delta Offset 3 2 rte cr tectis reete IMAPLKOR 12 sss cte oic vct vcio tm obe EA 70 RITTER TE Markor ZOOM setacea re esa reed 71 Format e Digital Input Data Rate sssssseeee 49 N PUCCH ness KIEREN E N 2 RB Number of RBs for PUCCH EVM xerit 26 PUSCH Structure EVM vs subframe S Frequency Hopping Mode ssseseeeseseeerrrrresrrrneen 61 EVM VS S
141. represents one subframe For each subframe you can define the following characteristics e Subframe Shows the number of a subframe Note that depending on the TDD configuration some subframes may not be avail able for editing The R amp S FSV labels those subframes not used e Enable PUCCH Turns the PUCCH in the corresponding subframe on and off If you enable PUCCH the application automatically turns PUSCH off Modulation Number of RBs and Offset RB are unavailable for that subframe If you disable __L______S_S SSS SSF User Manual 1173 1433 02 04 55 R amp S FSV K10x LTE Uplink Configuring and Performing the Measurement ee ee ee Ss Defining Advanced Signal Characteristics PUCCH the application automatically turns PUSCH on Modulation Number of RBs and Offset RB become available e Modulation Selects the modulation scheme for the corresponding PUSCH allocation The modulation scheme is either QPSK 16QAM or 64QAM e Number of RB Sets the number of resource blocks the PUSCH allocation covers The number of resource blocks defines the size or bandwidth of the PUSCH allocation e Offset RB Sets the resource block at which the PUSCH allocation begins Make sure not to allocate PUSCH allocations into regions reserved for PUCCH allo cations Remote command Configurable subframes CONFigure LTE UL CSUBframes on page 115 Frame number offset
142. ring and Performing the Measurement DEET Configuring Uplink Signal Demodulation According to 3GPP TS 36 101 Annex F 4 the R amp S FSV removes the carrier leakage I Q origin offset from the evaluated signal before it calculates the EVM and in band emissions Remote command SENSe LTE UL DEMod CDCoffset on page 112 Scrambling of Coded Bits Turns the scrambling of coded bits for the PUSCH on and off The scrambling of coded bits affects the bitstream results Source ofbitstream results when Scrambling of coded bits is ON OFF unscrambled bits scrambled bits Scrambling sae Scrambling ps pen Fig 5 1 Source for bitstream results if scrambling for coded bits is on and off codewords Modulation Remote command SENSe LTE UL DEMod CBSCrambling on page 112 Auto Demodulation Turns automatic demodulation on and off If active the R amp S FSV automatically detects the characteristics of each subframe in the signal resource allocation of the signal Automatic demodulation is not available if the Suppressed Interference Synchronization is active Remote command SENSe LTE UL DEMod AUTO on page 112 Suppressed Interference Synchronization Turns suppressed interference synchronization on and off If active the synchronization on signals containing more than one user equipment UE is more robust Additionally the EVM is lower in c
143. rmation of all trans mitted modulation symbols since the input data stream has been spread by the DFT transform over the available sub carriers In contrast to this each sub carrier of an OFDMA signal only carries information related to specific modulation symbols SC FDMA Parameterization The EUTRA uplink structure is similar to the downlink An uplink radio frame consists of 20 slots of 0 5 ms each and 1 subframe consists of 2 slots The slot structure is shown in figure 1 2 Each slot carries Y SC FDMA symbols where N 7 for the normal cyclic prefix and NS 6 for the extended cyclic prefix SC FDMA symbol number 3 i e the 4th symbol in a slot carries the reference signal for channel demodulation One uplink slot T pe a TM pe ne EE Modulation symbol a Nek og amb Also for the uplink a bandwidth agnostic layer 1 specification has been selected The table below shows the configuration parameters in an overview table Fig 1 2 Uplink Slot Structure Uplink Data Transmission In uplink data is allocated in multiples of one resource block Uplink resource block size in the frequency domain is 12 sub carriers i e the same as in downlink However not all integer multiples are allowed in order to simplify the DFT design in uplink signal process ing Only factors 2 3 and 5 are allowed The uplink transmission time interval TTI is 1 ms same as downlink User data is carried on the Physical Uplink Share
144. roblem send these files to the support in order to identify and solve the problem faster User Manual 1173 1433 02 04 16 R amp S FSV K10x LTE Uplink Measurement Basics Symbols and Variables 3 Measurement Basics This chapter provides background information on the measurements and result displays available with the LTE Analysis Software e Symbols and Vattables eese erect rhe teen unen nenne nie 17 EE 18 e The LTE Uplink Analysis Measurement Applicatton sss 18 3 1 Symbols and Variables The following chapters use various symbols and variables in the equations that the measurements are based on The table below explains these symbols for a better under standing of the measurement principles EE data symbol actual decided Au data symbol after DFT precoding Af Af m carrier frequency offset between transmitter and receiver actual coarse estimate Afres residual carrier frequency offset C relative sampling frequency offset HA H Ji channel transfer function actual estimate i time index coarse Hine timing estimate coarse fine k subcarrier index l SC FDMA symbol index Nps number of SC FDMA data symbols Neer length of FFT Ng number of samples in cyclic prefix guard interval N number of Nyquist samples Nx number of allocated subcarriers Ni noise sample n index of modulated QAM symbol before DFT precod ing o c
145. s na OD TIMING E 52 Transm Comb K TQ ioni tete 60 Trigger level we 44 Trigger le TEE A4 Trigger Offset occi eter eet ee eerte bee 44 Softkey Const Selection sssssse 68 EC E 69 Sounding Reference Signal Conf Index I SRS aii re e beret 61 Freq Domain Pos n RRC sss 60 Hopping BW b hop Present e irti Rel Ower 5 rnt rere ri nint SRS Bandwidth B SRS 60 SRS BW Conf C SRS esee 60 SRS Cyclic Shift N C A 60 SRS Subframe Conf 59 Transm Comb K TG iuueni ttes 60 Source Input 5 notre ra rhet rnt 49 Spectrum mask we 29 Standard Selection eie tnter 40 Status Bar nnt reete inrita i e a I Pei 15 Subframe Configuration Table ssssssss 55 Suffixes Remote commands esse Suppressed interference synchronization n Swap VO T TDD UL DL AllOCAtIONS oth te etre 53 Timing sce 52 Title Bar POS Mnzdl a 44 Tigger le A4 MIG GET TOT DET ES 44 U Using the Marker rtr 69 User Manual 1173 1433 02 04 138
146. s the cyclic shift n CS used for the generation of the sounding reference signal CAZAC sequence Parameters lt CyclicShift gt lt numeric value gt RST 0 Example CONF UL SRS CYCS 2 Sets the cyclic shift to 2 CONFigure LTE UL SRS ISRS lt Conflndex gt This command defines the SRS configuration index Irs Parameters lt Conflndex gt lt numeric value gt RST 0 Example CONF UL SRS ISRS 1 Sets the configuration index to 1 CONFigure LTE UL SRS NRRC lt FreqDomPos gt Sets the UE specific parameter Freq Domain Position ngre Parameters lt FreqDomPos gt lt numeric value gt RST 0 Example CONF UL SRS NRRC 1 Sets Ngre to 1 CONFigure L TE UL SRS POWer Power Defines the relative power of the sounding reference signal Parameters Power numeric value RST 0 Default unit DB Example CONF UL SRS POW 1 2 Sets the power to 1 2 dB ES User Manual 1173 1433 02 04 120 R amp S FSV K10x LTE Uplink Remote Commands Remote Commands to Configure the Application CONFigure LTE UL SRS STAT lt State gt Activates or deactivates the sounding reference signal Parameters lt State gt ON OFF RST OFF Example CONF UL SRS STAT ON Activates the sounding reference signal CONFigure LTE UL SRS SUConfig lt Configuration gt This command defines the SRS subframe configuration Parameters lt Configuration gt lt numeric value gt RST 0 Example CON
147. source blocks half of the available PUCCH resource blocks is allocated on the lower the other half on the upper edge of the LTE spectrum outermost resource blocks In case of an odd number of PUCCH resource blocks the number of resource blocks on the lower edge is one resource block larger than the number of resource blocks on the upper edge of the LTE spectrum Remote command CONFigure LTE UL PUCCh NORB on page 124 Delta Shift Defines the delta shift parameter The delta shift is the difference between two adjacent PUCCH resource indices with the same orthogonal cover sequence OC It determines the number of available sequences in a resource block that can be used for PUCCH formats 1 1a 1b For more information refer to 3GPP TS36 211 chapter 5 4 Physical Uplink Control Channel Remote command CONFigure LTE UL PUCCh DESHift on page 123 Delta Offset Sets the PUCCH delta offset parameter i e the cyclic shift offset The value range depends on the selected Cyclic Prefix User Manual 1173 1433 02 04 63 R amp S FSV K10x LTE Uplink Configuring and Performing the Measurement a ee ee ee Se Se Defining Advanced Signal Characteristics This parameter can be found in 3GPP TS36 211 V8 5 0 5 4 Physical uplink control channel Remote command CONFigure LTE UL PUCCh DEOFfset on page 123 N 1 _cs Defines the number of cyclic shifts used for PUCCH format 1 1a 1b in a resource block used for
148. spectrum emission mask SPEC ACP ACLR SPEC PSPE power spectrum result display SPEC FLAT spectrum flatness result display SPEC GDEL group delay result display SPEC FDIF flatness difference result display SPEC IE inband emission result display CONS CONS constellation diagram CONS DFTC DFT precoded constellation diagram STAT BSTR bitstream STAT ASUM allocation summary STAT CCDF CCDF Example CALC2 FEED PVT CBUF Select Capture Buffer to be displayed on screen B DISPlay WINDow lt n gt TABLe State This command turns the result summary on and off Parameters State ON Turns the result summary on and removes all graphical results from the screen OFF Turns the result summary off and restores the graphical results that were previously set Example DISP TABL OFF Turns the result summary off Configuring Frequency Sweep Measurements ACLR and SEM measurements feature some settings particular to those measurements SENSe POWer ACHannekl AACHannel enin nennen nnne nnnn rrr tnt nnne n nens 81 SENSe POWer ACHannel BANDwidth CHANnel2 eese een 81 SENSe POWer ACHannel SPACing CHANnel cessisset nnne nnns 81 SENSe POWer ACHannel TXCHannels COUNL e eeiisiseee esta seiten ntn na nhan nsa nins 82 EE User Manual 1173 1433 02 04 80 R amp S FSV K10x LTE Uplink Remote Commands a a ee ee Selecting and
149. ssions dB Selection Subframe 0 Slot 0 2 Remote command CALCulate lt screenid gt FEED SPEC IE TRACe DATA 4 4 2 2 Flatness Flat Grdel Diff Channel Flatness Starts the Channel Flatness result display This result display shows the relative power offset caused by the transmit channel The measurement is evaluated over the currently selected slot in the currently selected subframe The currently selected subframe depends on your selection The x axis represents the frequency On the y axis the channel flatness is plotted in dB A Channel Flatness dB MI PR 1 54 MHzidiv Remote command CALCulate lt n gt FEED SPEC FLAT TRACe DATA Channel Group Delay Starts the Channel Group Delay result display This result display shows the group delay of each subcarrier The measurement is evaluated over the currently selected slot in the currently selected subframe The currently selected subframe depends on your selection EEUU RA a User Manual 1173 1433 02 04 33 R amp S FSV K10x LTE Uplink Measurements and Result Displays 4 5 Measuring the Symbol Constellation The x axis represents the frequency On the y axis the group delay is plotted in ns B Group Delay ns 1 54 MHzidiv Remote command CALCulate lt n gt FEED SPEC GDEL TRACe DATA Channel Flatness Difference Starts the Channel Flatness Difference result display This result display shows the level difference in th
150. t you may have to browse through the Mode menu with the More softkey to find the LTE entry Presetting the software When you first start the software all settings are in their default state After you have changed any parameter you can restore the default state with the PRESET key CONFigure PRESet on page 132 Elements and layout of the user interface The user interface of the LTE measurement application is made up of several elements SS ST User Manual 1173 1433 02 04 14 R amp S FSV DE EE cinis Welcome pe E 1 Application Overview Spectrum 1 LTE ue 1GHz Meas Setup 11Xx1RX Ext Att 0 dB 2 E 50 RB 10 MHz Normal CP Sync State OK Capture Time 20 1 ms TRG FREE RUN DE 10 12 2009 14 50 27 1 Channel Bar contains all currently active measurement applications 2 Table Header shows basic measurement information e g the frequency 3 Result Display Header shows information about the trace 4 Result Display Screen A shows the measurement results 5 Result Display Screen B shows the measurement results 6 Status Bar shows the measurement progress software messages and errors 7 Softkeys open settings dialogs and select result displays The status bar The status bar is located at the bottom of the display It shows the current measurement status and its progress in a running measurement The status bar also shows warning and error messages Error
151. tings that control the input level of the analyzer The level settings are part of the General tab of the General Settings dialog box General Advanced Trigger Spectrum Level Settings Ref Level RF Auto Level 10 dBm Ext Att 0 dB Defining a Reference Level rariora aan tirer nba TANE Da ua Ra decas 41 Atten atilig die Le ET 42 Defining a Reference Level The reference level is the power level the R amp S FSV expects atthe RF input Keep in mind that the power level at the RF input is the peak envelope power in case of signals with a high crest factor like LTE e User Manual 1173 1433 02 04 41 R amp S FSV K10x LTE Uplink Configuring and Performing the Measurement a M AN CA J ee ee ee pq General Settings To get the best dynamic range you have to set the reference level as low as possible At the same time make sure that the maximum signal level does not exceed the reference level If it does it will overload the A D converter regardless of the signal power Mea surement results may deteriorate e g EVM This applies especially for measurements with more than one active channel near the one you are trying to measure 6 MHz Note that the signal level at the A D converter may be stronger than the level the appli cation displays depending on the current resolution bandwidth This
152. ttings dialog box UL Demod UNSZTITAS TIT UL Adv Sig Config Physical Layer Cell Identity Auto v4 Cell ID 0 Cell Identity Group 0 Identity 0 Configuring the Physical Layer Cell Identity eee 54 Configuring the Physical Layer Cell Identity The cell ID cell identity group and physical layer identity are interdependent parameters In combination they are responsible for synchronization between network and user equipment The physical layer cell ID identifies a particular radio cell in the LTE network The cell identities are divided into 168 unique cell identity groups Each group consists of 3 phys ical layer identities According to NZ 3 Nip Nip N cell identity group 0 167 NO physical layer identity 0 2 there is a total of 504 different cell IDs If you change one of these three parameters the R amp S FSV automatically updates the other two The Cell ID determines e the reference signal grouping hopping pattern e the reference signal sequence hopping e the PUSCH demodulation reference signal pseudo random sequence User Manual 1173 1433 02 04 54 R amp S FSV K10x LTE Uplink Configuring and Performing the Measurement El Configuring Uplink Frames e the cyclic shifts for PUCCH formats 1 1a 1b and sequences for PUCCH formats 2 2a 2b e the pseudo random sequence used for scrambling e the pseudo random sequence used for type 2 PUSCH frequency hopping Rem
153. ual of the R amp S FSV Remote command examples Note that some remote command examples mentioned in this general introduction may not be supported by this particular application Conventions used in Descriptions Note the following conventions used in the remote command descriptions e Command usage If not specified otherwise commands can be used both for setting and for querying parameters If a command can be used for setting or querying only or if it initiates an event the usage is stated explicitely e Parameter usage If not specified otherwise a parameter can be used to set a value and it is the result of a query Parameters required only for setting are indicated as Setting parameters Parameters required only to refine a query are indicated as Query parameters Parameters that are only returned as the result of a query are indicated as Return values e Conformity Commands that are taken from the SCPI standard are indicated as SCPI con firmed All commands used by the R amp S FSV follow the SCPI syntax rules e Asynchronous commands A command which does not automatically finish executing before the next command starts executing overlapping command is indicated as an Asynchronous com mand e Reset values RST Default parameter values that are used directly after resetting the instrument RST command are indicated as RST values if available e Manual operation If the result of a remote command can also be achiev
154. ular subframe it returns nothing 8 6 1 7 Channel Flatness Difference For the Channel Flatness Difference result display the command returns one value for each trace point lt relative power gt The unit is always dB The number of values depends on the selected LTE bandwidth The following parameters are supported e TRACE1 Returns the average power over all subframes e TRACE2 Returns the minimum power found over all subframes If you are analyzing a partic ular subframe it returns nothing e TRACE3 Returns the maximum power found over all subframes If you are analyzing a partic ular subframe it returns nothing 8 6 1 8 Channel Group Delay For the Channel Group Delay result display the command returns one value for each trace point lt group delay gt The unit is always ns The number of values depends on the selected LTE bandwidth The following parameters are supported e TRACE1 Returns the average group delay over all subframes e TRACE2 User Manual 1173 1433 02 04 95 R amp S FSV K10x LTE Uplink Remote Commands Remote Commands to Read Trace Data Returns the minimum group delay found over all subframes If you are analyzing a particular subframe it returns nothing e TRACE3 Returns the maximum group delay found over all subframes If you are analyzing a particular subframe it returns nothing 8 6 1 9 Constellation Diagram For the Constellation Diagram the command returns two values for
155. uling decisions affecting the uplink are communicated to the UEs via the Physical Downlink Control Channel PDCCH in the downlink The scheduling decisions may be based on QoS parameters UE buffer status uplink channel quality measurements UE capabilities UE measurement gaps etc Uplink link adaptation As uplink link adaptation methods transmission power control adaptive modulation and channel coding rate as well as adaptive transmission bandwidth can be used Uplink timing control Uplink timing control is needed to time align the transmissions from different UEs with the receiver window of the eNodeB The eNodeB sends the appropriate timing control commands to the UEs in the downlink commanding them to adapt their respective trans mit timing Hybrid automatic repeat request ARQ The Uplink Hybrid ARQ protocol is already known from HSUPA The eNodeB has the capability to request retransmissions of incorrectly received data packets M M M User Manual 1173 1433 02 04 12 R amp S FSV K10x LTE Uplink Introduction References 1 3 References 1 3GPP TS 25 913 Requirements for E UTRA and E UTRAN Release 7 2 3GPP TR 25 892 Feasibility Study for Orthogonal Frequency Division Multiplexing OFDM for UTRAN enhancement Release 6 3 3GPP TS 36 211 v8 3 0 Physical Channels and Modulation Release 8 4 3GPP TS
156. ult the application captures 20 1 ms of data to make sure that at least one com plete LTE frame is captured in one sweep Remote command SENSe SWEep TIME on page 108 Overall Frame Count Turns the manual selection of the number of frames to capture and analyze on and off If the overall frame count is active you can define a particular number of frames to capture and analyze The measurement runs until all required frames have been analyzed even if it takes more than one sweep The results are an average of the captured frames If the overall frame count is inactive the R amp S FSV analyzes all complete LTE frames currently in the capture buffer Remote command SENSe LTE FRAMe COUNt STATe on page 108 Number of Frames to Analyze Sets the number of frames that you want to capture and analyze If the number of frames you have set last longer than a single sweep the R amp S FSV continues the measurement until all frames have been captured The parameter is read only if e the overall frame count is inactive e the data is captured according to the standard Remote command SENSe LTE FRAMe COUNt on page 107 User Manual 1173 1433 02 04 43 R amp S FSV K10x LTE Uplink Configuring and Performing the Measurement a ee ee ee P General Settings Auto According to Standard Turns automatic selection of the number of frames to capture and analyze on and off If active the R am
157. umber on Example FRAM COUN AUTO ON Turns automatic selection of the analyzed frames on SENSe L TE FRAMe COUNt STATe State This command turns manual selection of the number of frames you want to analyze on and off Parameters State ON You can set the number of frames to analyze OFF The R amp S FSV analyzes a single sweep RST ON Example FRAM COUN STAT ON Turns manual setting of number of frames to analyze on SENSe SWEep TIME lt CaptLength gt This command sets the capture time Parameters lt CaptLength gt Numeric value in seconds Default unit s Example SWE TIME 40 Defines a capture time of 40 seconds 8 7 1 4 Triggering Measurements TRiGger SEQuence HOLDolf lt amaly zene ninini aaa aaa aa aaa 108 TRIGger SEQuence F Power HOLDOff irci iia ra Aai 109 TRlGoert GtOuencelltbower HvGTeresls icini aa i a a aa 109 TRIGger SEQuence LEVel analyzer POWer esses ener 109 TRIGger SEQuencep MODE ie tiic a Idee Dr gehe eee HE CHA e Heo ERR TED ee ERR ve e Rudd 109 TRIGger SEQuence HOLDoff lt analyzer gt Offset This command defines the trigger offset IESSE User Manual 1173 1433 02 04 108 R amp S FSV K10x LTE Uplink Remote Commands REESEN Remote Commands to Configure the Application Parameters lt Offset gt lt numeric value gt RST Os Default unit s Example TRIG HOLD 5MS Sets the trigger offset to 5 ms TRIGger SE
158. x LTE Uplink Remote Commands a A O gH emtc Remote Commands to Configure the Application Parameters lt NofSubframes gt Range 0 to 9 RST 1 Example CONF UL CSUB 5 Sets the number of configurable subframes to 5 CONFigure LTE UL SFNO lt Offset gt This command defines the system frame number offset The application uses the offset to demodulate the frame Parameters lt Offset gt lt numeric value gt RST 0 Example CONF UL SFNO 2 Selects frame number offset 2 CONFigure LTE UL SUBFrame lt subframe gt ALLoc RBCount lt NofRBs gt This command selects the number of resource blocks in an uplink subframe Parameters lt NofRBs gt lt numeric value gt RST 11 Example CONF UL SUBF8 ALL RBC 8 Subframe 8 consists of 8 resource blocks CONFigure LTE UL SUBFrame lt subframe gt ALLoc RBOFfset lt RBOffset gt This command defines the resource block offset in an uplink subframe Parameters lt RBOffset gt lt numeric value gt RST 2 Example CONF UL SUBF8 ALL RBOF 5 Subframe 8 has a resource block offset of 5 CONFigure LTE UL SUBFrame lt subframe gt ALLoc POWer Power This command defines the relative power of an uplink allocation Parameters lt Power gt lt numeric value gt RST 0 Default unit DB ES User Manual 1173 1433 02 04 116 R amp S FSV K10x LTE Uplink Remote Commands Remote Commands to Configure the Application Example C

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