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R&S FSQ-K10x EUTRA/LTE UL Measurement

1. 131 CONFigure ETE DUPLOXING DEE 102 CONFigure LIE EDIRC COON iind t dE Eege 102 gl Tele IC RRE Klee eg Te EE 108 CONFigure E TELULE E CONFigure LTE UL CSUBframes CONFigure LTE UL e de EE CONFigure EMEP ULSD RS DSSHIM E CONFigure LTE UL DRS GRPHOPPING c ccciceccssccostesccessescsestenestsesseessenssetecssssecsenseceebscevsceteed sanestesdenesoene 119 CONFig re ETEEUEDRS NDMRS ierat iret ettet ent retento EES 119 CONFigure ETETFULE DRS PUGGCh POWAr ccn rt ted een e papi iair ala 119 CONFigure TEE ULE DRS SEQBODDIFIGi cri ern n cun eon eer ipo rk den bey avene ue 120 CONFigure L TE UL DRS PUSCh POWer sees aaa nennen enne nre 120 CONFigure LTE UL NORB visser ct ances ete vero eet re neam PED e udo be RR cbe bu ke XR ENT HELME FEE TE NE CONFigure L TE UL PLC CID el tt UR Eu RTE en El RE e E 116 CONFigure ETETUEBPEG PLEID aiite Eee aee derer ertet ee kde ied sema rb race ey ec vb eoa c 116 V los UR EAR R I Ge e CN 124 CONFigure LTE UL PUCCHIDE SHIR i sei tette certet rre npe ere tee Th VEER EE a Red 124 CONFigure ETETULE PUCCH FORMAal 2 2 2 pitt tet etr thread hp ete tte de a v deg ded 124 CONFigurel LTEFUE We eu le GONFigure ETEEULEPUCCHIN2RB 1er nitro etait t nonet Eege sent Alois UR RTE lee Rat CONFigure LTE UL PUCCh NPAR CONFigure LTE ULPUSCH EHMOGde irren e Ren E eege deed 123 CONFigure ETEEUL
2. esee 113 9 7 4 Configuring Te le 115 9 7 5 Defining Advanced Signal Charachertsice 119 9 8 Analyzing Measurement Results eese rennen rnnt 126 9 8 1 General Commands for Result Analyse 126 SEPA MMBSI Tuc 127 9 8 3 Scaling the Vertical Diagram Avis 129 ERE RU Em I e LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLULCAAUL tL User Manual 1173 1210 12 04 5 9 9 Configuring the Software sssseseeeessseeeeeeeeee eene nnnn ennt nennen tnn nnns 130 List of Commands 1 1 eene e eere nan an an anna anat eaa a a aaa ea en a snnnan anas annui 132 jo d 136 R amp S FSQ K10x LTE Uplink Preface 1 1 Documentation Overview Preface Documentation Overview The user documentation for the R amp S FSQ consists of the following parts e Getting Started printed manual e Documentation CD ROM with Getting Started User Manuals for base unit and options Service Manual Release Notes Data sheet and product brochures Getting Started This manual is delivered with the instrument in printed form and in PDF format on the CD It provides the information needed to set up and start working with the instrument Basic operations and handling are described Safety information is also included User Manuals User manuals are provided for the base unit and each ad
3. M S User Manual 1173 1210 12 04 40 6 2 6 2 1 General Settings You can always switch back to continuous sweep mode with the Run Cont softkey SCPI command INITiate CONTinuous on page 82 Auto Level The 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 43 SCPI 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 FSQ updates the current measurement results with respect to the new settings It does not capture UO data again but uses the data captured last SCPI command INITiate REFResh on page 83 General Settings 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 3GPP LTE FDD Uplink 1 00768 GHz 10 MHz selecung the Te TEE 41 Defining the Signal Fredquefey eet rt et ee ht b dert debe 42 Channel Bandwidth Number of Resource Blocks 42 evel m 43 Selecting the LTE Mode The standard defines the LTE mode you are testing R amp S FSQ K10x LTE Uplink Configurin
4. 49 T TDD UL DL Allocations eee 56 Timing Error RI en BMhera4luee Trigger mode iss Tigger OMS CU TETTE U Using the Market rrt erento 71 Y eui ges 50 User Manual 1173 1210 12 04 137
5. sessi nennen nnrennrern rennen ense tnit rennes 88 FETCh SUMMary EVM USQP AVERage FE TCh SUMMarv EVMUSGTTAVERagef nennen nnen nenne ner en enr se nr se tenter enne 88 FETCh SUMMary EVM ALL MAXimum eesesssssseseeseeeeneneeeennen nennen eene nre t rennen trennen enne 86 FETCh SU MMarv EVME ALL TMiNimum nennen 86 FETCh SUMMary EVM ALL AVERage eese nennen nennen nnne eee nrn innen 86 FETCh SUMMary FERROr MAXimUt iere erret e te ede ctt dpa EAE epus enee dia e P Daedalus 88 FETCh SUMMary FERRor MINimum essent nnne nenne neret rnnetnrren tend t ense nnns etre trien 88 EEICh SUMMary FERROr AVERage 21 1er Dh treni tree rye deca anda doa cde o Ye ERI eR aera dere 88 FETCh SUMMary GlIMBalance MAXimum esses nere nennen ennnrte rnit ense trs enne nnn rerent 89 FETCh SUMMary GIMBalance MINimum FE TCh SUMMarv GlMalancef AVERagel nennen nre en eret reset nri nnns 89 FETCh SUMMary IQOFfset MAXimum sess rennen renetene senes iira aa arnie aii 89 FE TCh SUMMarv IOOFTserMiNimmumg enne nnnm rennen rne sn reset rete s enn se trennen 89 FETCh SUMMary IQOFfset AVERage esee aiiai d denisonii 89 FETCh SUMMary OSTP MAXiIMUM 000 ee cee niapen eeeeeceeeseaeeeeaeeceeeseseeseaeesesaessaeeseaeeseaeeseaeeseaeeseaeeseeeeneaes 89 SSE a T User Manual 1173 1210 12 04 133 R amp S FSQ K10x LTE Uplink List of Comma
6. 1 54 MHzidtv SCPI 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 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 display 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 68 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 FSQ could not determine the EVM for that symbol In case of TDD signals
7. UL Adv Sig Config dB 0 0 0 0 0 0 0 0 SRS Bandwidth E 63 Freg Domain Pos Tic RO eet efe Pe nete sand EEN 63 e EY VAIN SE lE 63 Transm reeL 63 SRS CY CNG ug o EET 63 Cont GE PR M 64 Fioppitg BW TNO Bh vaca sinnini ieaie GERE RR RE idia aiid Adi RRAR ata KE TR EORR T Rae nd 64 Present Indicates whether the sounding reference signal is present or not SCPI command CONFigure LTE UL SRS STAT on page 122 SRS Rel Power Defines the power offset of the sounding reference signal The power offset is relative to the power of the corresponding UE and applies to all sub frames The effective power level of the SRS is thus Psns Pue Psrs_oftset SCPI command CONFigure LTE UL SRS POWer on page 122 R amp S FSQ K10x LTE Uplink Configuring and Performing the Measurement Eh Defining Advanced Signal Characteristics SRS Subframe Conf Sets the cell specific parameter SRS subframe configuration The UEs will send short ened PUSCH PUCCH in these cell specific subframes regardless whether the UEs are configured to send a SRS in the according subframe or not SCPI command CONFigure LTE UL SRS SUConfig on page 122 SRS Bandwidth B SRS Sets the UE specific parameter SRS Bandwidth Bags as defined in the 3GPP TS 36 211 chapter 5 5 3 2 The SRS either spans the entire frequency bandwidth or employs frequency hopping where several narr
8. eeeeeeeeeeennnn nnn 36 User Manual 1173 1210 12 04 3 R amp S FSQ K10x LTE Uplink Contents 5 6 Measuring Statistics cccccccctceceteeccctteceiviescoctecenveesconsseereesconnencevevedasseceteedecanneccrrnes 37 6 Configuring and Performing the Measurement 40 6 1 Performing Measurements eseeeeeeeeeeeenenene nennen nennt nennen nnn nnne nnns 40 6 2 General Sevens cc cis cca iren tents inert uitio se de RENE Auge Ee 41 6 2 1 Defining Signal Characteristics m 41 6 2 2 Configuring the Input Level iiie itin niin etna idend 43 6 2 3 Configuring the Data Capture 45 6 2 44 Triggering Measurements eee nennen nnn nnn nnns nennen 46 6 3 Configuring Spectrum Measurements eene 47 6 3 1 Configuring SEM Measurements essem nennen nennen 47 6 3 2 Configuring ACLR Measurements eene nennen 48 6 3 3 Configuring Gated Measurements eene nennen 49 6 4 Advanced General Settings seeeeseeesseseeeeeeenennnn nennen nnns 49 6 4 1 Controlling Q Data eot tn Eege EE 49 64 2 Controlling the Input eebe eeege ee geed ESA ed 50 6 4 3 Configuring the Baseband Input 51 6 4 4 Configuring the Digital UO Input 53 6 5 Configuring Uplink Signal Demodulation enne 53 6 5 1 Configuring the Data Analyse 53 6 5 2 Compensating Measurement Emors nm enne 55 6 6 Configuring Uplink Frames
9. eeeeeeeeeeeeenneennnnnnennennnnn nnne nnn nnne nnne n nnns 56 661 Configuring DD Signals irr bebe ue ve ege Eege ee 56 6 6 2 Configuring the Physical Layer Cell Identity 57 6 6 3 Configuring SUbframes iter iet vg ENEE ades Ear neqoe dpud 58 6 7 Defining Advanced Signal Characteristics seen 59 6 7 1 Configuring the Demodulation Reference Gional 60 6 7 2 Configuring the Sounding Reference Gional 62 6 7 3 Defining the PUSCH Gtruchure eene nennen nnne 64 6 7 4 Defining the PUCCH Gtruchure ennemis 65 6 7 5 Defining Global Signal Charachertsice nnne 67 7 Analyzing Measurement Results eee 68 7 1 Selecting a Particular Signal Aspect esee 68 7 2 Defining Measurement Units ceeeeeeeeeeeeeeeeeeennen nennen enne nnn nennen nennen 69 SS 7e User Manual 1173 1210 12 04 4 R amp S FSQ K10x LTE Uplink Contents 7 3 Defining Various Measurement Parameters cccccsssseeeeeesesseeeeeeeesesseeeeeeeeeseeeeeeens 69 7 4 Selecting the Contents of a Constellation Diagram eene 70 7 5 Scaling the E cerei erronee tenen ree taraen tes anres tensa oae na annone kann 70 7 6 Using the Marker iecerecrninrLeeete ine eee rain ne erani nm nne ta an Eau aie a uasa nude n EEN 71 ME
10. Fig 2 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 Scheduling 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
11. This command updates the current UO measurement results to reflect the current mea surement settings No new I Q data is captured Thus measurement settings apply to the UO data currently in the capture buffer The command applies exclusively to l Q 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 EE User Manual 1173 1210 12 04 83 9 5 Remote Commands to Read Numeric Results Example SYNC STAT Would return e g 1 for successful synchronization Usage Query only Remote Commands to Read Numeric Results EERSTEN a 85 PE PORIPEC IC alte e 85 a be Ge TE KETTEN 85 a E El e E RE 85 a ler VB El V EVM ALLEMAX MUM ET 86 FETCHSUMMary EVMEALLEMINIMUM AAA 86 FETCESUMMary EVMEALL AVERA Qe eane diraa aa iaaa 86 FE TCh SUMMarv EVM PCHannel MAXIMUM sissi niaaa a REER 86 FETCh SUMMary EVM PCHannel MINimum caesis ener nennen rere enn 86 FETCh SUMMary EVM POHannelpAVERage p tret tonne cta exuti enun 86 FETCh SUMMary EVM PSIGnal MAXIm trI 1 ceto Eine tette ana eu dae oe Eae ee e co ERR BRE 86 FETCh SUMMary EVM PSIGnal MINimutm iiie re ener iin nnn nnn mn nnt tnn aAA 86
12. 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 PCHannel 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 86 e Frequency Error Shows the difference in the measured center frequency and the reference center frequency FETCh SUMMary FERRor AVERage on page 88 e Sampling Error Shows the difference in measured symbol clock and reference symbol clock relative to the system sampling rate FETCh SUMM
13. CONFigure LTE UL DRS DSSHift Shift This command selects the delta sequence shift of the uplink signal Parameters Shift numeric value RST 0 Example CONF UL DRS DSSH 3 Sets the delta sequence shift to 3 CONFigure L TE UL DRS GRPHopping State This command turns group hopping for uplink signals on and off Parameters State 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 nous Parameters lt nDMRS gt lt numeric value gt 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 EE User Manual 1173 1210 12 04 119 R amp S FSQ K10x LTE Uplink Remote Commands 9 7 5 2 Remote Commands to Configure the Application Example CONF UL DRS PUCC POW 2 Sets the power of the PUCCH to 2 dB CONFigure LTE UL DRS PUSCh POWer lt Power gt This command sets the relative power of the PUSCH Parameters lt Power gt RST 0 Default unit DB Example CONF UL DRS POW 2 Sets the relative power of the PUSCH to 2 dB CONFigure LTE UL DRS SEQHopping lt State gt This command turns sequence hopping for uplink signals on and off Parameters lt State gt ON OFF RST OFF Example CONF UL DRS SEQH ON Activates sequence hop
14. FRAMe COUNt AUTO State This command turns automatic selection of the number of frames to analyze on and off Parameters lt State gt ON Selects the number of frames to analyze according to the LTE standard OFF Turns manual selection of the frame number 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 FSQ 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 SS ST User Manual 1173 1210 12 04 107 R amp S FSQ K10x LTE Uplink Remote Commands Remote Commands to Configure the Application 9 7 1 4 Configuring On Off Power Measurements CONFigureEETEFOOPOwWerNFIRAIIGS ascoan rte Gd NEE EE acp inh ete ann 108 CONFigure L TE OOPower NFRames Frames This command defines the number of frames that are analyzed for On Off Power meas urements Parameters Frames numeric value Example CONF OOP NFR 10 Defines 10 frames to be analyzed 9 7 1 5
15. Modulation Number of RBs and Offset RB are unavail able for that subframe 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 SCPI command Configurable subframes CONFigure LTE UL CSUBframes on page 117 Frame number offset CONFigure LTE UL SFNO on page 117 Enable PUCCH CONFigure LTE UL SUBFrame lt subframe gt ALLoc CONT on page 118 Modulation CONFigure LTE UL SUBFrame lt subframe gt ALLoc MODulation on page 118 Number of RB CONFigure LTE UL SUBFrame lt subframe gt ALLoc RBCount on page 117 Offset RB CONFigure LTE UL SUBFrame lt subframe gt ALLoc RBOFfset on page 117 6 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 LEE User Manual 1173 1210 12 04 59 R amp S FSQ K10x LTE Uplink Configuring and Performing the Measurement Dee Defining Advanced Signal Characteristics 6 7 1 Configuring th
16. 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 of the application Select the file you want to load and activate it with the Load IQ Data button 8 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 FSQ The save recall menu is the same as that of the spectrum mode For details on the softkeys and handling ofthis file manager refer to the operating manual of the R amp S FSQ lM User Manual 1173 1210 12 04 74 R amp S FSQ K10x LTE Uplink Remote Commands Overview of Remote Command Suffixes 9 Remote Commands e Overview of Remote Command Gufftves nen 75 nttodiction o Ee aaa EES Te a UM ema Eo Me a plata xmas 75 e Selecting and Configuring Measurements A 80 e Remote Commands to Perform Measurements nnn 82 e Remote Commands to Read Numeric HResuhts 84 e Remote Commands to Read Trace Dea tnnt nent nnne tn n 91 e Remote Commands to Configure the Applcatton 102 e Analyzing Measurement Results AA 126 Ee De deier RE 130 9 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 allocati
17. lt numeric value gt RST 0 Example CONF 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 SSES User Manual 1173 1210 12 04 122 R amp S FSQ K10x LTE Uplink Remote Commands Remote Commands to Configure the Application 9 7 5 3 Defining the PUSCH Structure EE HE ENEE e e 123 CONFigurefit TEFBE PUSChIEBOE TSSL aides creen pepe deeg 123 GONFIgurer EIERE BECHER erba oido Nee 123 CONFigireE ETE ULIPUSChINOSM eege EEN etn ecu ence ue KEE AE 123 CONFigure L TE UL PUSCh FHMode lt HoppingMode gt This command selects the frequency hopping mode in the PUSCH structure 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 LTE 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 to 3
18. on page 19 EVM VS CAME TC 28 AEE T E AE e E S 29 EVM vS SUDANE EE 30 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 OFDM symbols used by the subcarriers 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 This trace shows the lowest average subcarrier EVM that has been found over the analyzed slots e Maximum EVM User Manual 1173 1210 12 04 28 R amp S FSQ K10x LTE Uplink Measurements and Result Displays Measuring the Error Vector Magnitude EVM This trace 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 68 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
19. Incoming Bt eam Channd By Fig 2 1 Block Diagram of DFT s OFDM Localized Transmission _L LLL _ ES e e LLLIL ALLAAAALLLLLLLLLLLLLLLLLLLLLLLUULLLIXM X User Manual 1173 1210 12 04 11 R amp S FSQ K10x LTE Uplink Introduction 2 2 2 2 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 information 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 2 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 E TM EE eR 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 con
20. LTE UL SRS CYCS lt CyclicShift gt Sets 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 lana 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 o MM User Manual 1173 1210 12 04 121 R amp S FSQ K10x LTE Uplink Remote Commands Remote Commands to Configure the Application 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 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
21. 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 modulation type e Power Shows the power of the allocation in dBm e EVM User Manual 1173 1210 12 04 38 R amp S FSQ K10x LTE Uplink Measurements and Result Displays Measuring Statistics Shows the EVM of the allocation The unit depends on your selection SCPI 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 sub
22. dialog box General MIMO Advanced Trigger ACLR Settings Assumed Adj Chnl Carrier EUTRA same BYY Noise Correction Assumed Adjacent Channel Cartier 2 eese eene dde ieiuna 48 Noise COMEGUIOM EE 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 SCPI command SENSe POWer ACHannel AACHannel on page 81 Noise Correction Turns noise correction on and off For more information see the manual of the R amp S FSQ 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 SCPI command SENSe POWer NCORrection on page 81 p VM User Manual 1173 1210 12 04 48 R amp S FSQ K10x LTE Uplink Configuring and Performing the Measurement Ech Advanced General Settings 6 3 3 Configuring Gated Measurements The gate settings settings are part of the Spectrum tab of the General Settings dialog box General MIMO Advanced Trigger Gate Settings Auto Gating Iva Aulo Oan ore tae E eec Ee a e ee ERR SER 49 Auto Gat
23. 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 EE EE User Manual 1173 1210 12 04 87 R amp S FSQ K10x LTE Uplink Remote Commands Remote Commands to Read Numeric Results 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 Example FETC SUMM EVM USST Queries the PUSCH 16QAM EVM Usage Query only FETCh SUMMary FERRor MAXi
24. 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 User Manual 1173 1210 12 04 95 R amp S FSQ K10x LTE Uplink Remote Commands Remote Commands to Read Trace Data 9 6 1 9 Constellation Diagram For the Constellation Diagram the command returns two values for each constellation point lt I SFO Symb0 Carrier1 gt lt Q SFO SymbO Carrier1 gt lt I SFO SymbO Carrier n gt lt Q SFO Symb0 Carrier n gt lt I SFO Symb1 Carrier1 gt lt Q SFO Symb1 Carrier1 gt lt I SFO Symb1 Carrier n gt O 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 SF0 Symb n Carrier n gt lt I SF1 Symb0 Carrier1 gt Q SF 1 SymbO Carrier1 lt I SF1 Symb0 Carrier n gt Q SF1 Symb0 Carrier n gt lt I SF1 Symb1 Carrier1 gt lt Q SF1 Symb1 Carrier1 gt lt I SF1 Symb1 Carrier n gt 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 lt 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 r
25. AV PK IEEE TT A A EE BEEN ILL LL JEE T SIP e e E DEE LA b hi ott ah eT a AUTO NT I 1 3 a na ee CONSTELL 7 68 MHz 1 54 MHzidiv sPecTRUN J JEUTRAZETEN euro a 8 RUN sc RUN cont REFRESH screen ULT 1 Title Bar shows the currently active measurement application 2 Table Header shows basic measurement information e g the frequency 3 Result Display Header shows information about the display 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 8 Hotkeys control the measurement process e g running a measurement The status and title bar The title bar at the very top of the screen shows the name of the application currently running EUTRA LTE 18 08 09 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 messages are generally highlighted Display of measurement settings The header table above the result displays shows information on hardware and mea surement settings User Manual 1173 1210 12 04 17 R amp S FSQ K10x LTE Uplink Welcome Support Capture Time 20 1 ms The header table includes the follow
26. POWerpAVERagel 5 cuota to e op d eeu zx a napa deve aaia 89 FETCh SUMMary QUADerror MAXimUm 2 222 enne ha nnne nun aDucu nmn RR nde eX RR RR OD da Rma EEN 90 FETCh SUMMary QUADerrorMINIImU sisin edad cede eph tete peto ia aeiia 90 FE TCh SUMMarv OUADerrort AVERAGE reete aada aaa 90 FE TCh SUMMarvRGTPMANimum eene nennen anaE a aaa hne tnt nn nnne 90 FEFChSUMMany RS PPM aede neu EES dd EE adaa 90 FETChHSUMMary SERROrMAXIMUM ciu a iore a YERBA RR V npn a eR ES Ea He ee ae 90 R amp S FSQ K10x LTE Uplink Remote Commands Remote Commands to Read Numeric Results FETCh SUMMary SERROE MINIMUM 22 cc ceciecn cee nai caetero hup tbt eene Ext a kata are ERR dn a danaa 90 FEICh SUMMarny SERROIFAVERagel TT 90 FETCh iSUMMary TERame dier retine SEENEN RETE eap i Mee E eu Yer ee RER siti 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 Example FETC PLC CIDG Return
27. Power Over TIEIG crater eesti teens 27 e Measuring the Error Vector Magnitude EVNM A 28 e Measuring the Gpechum ed ennemis 30 e Measuring the Symbol Constellation cccecccecceteeecccceetseccceceeteecdeneeteeeeeeeetenes 36 e Messung WE EE 37 5 1 Numerical Results Result SUMMA M 25 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 green 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 EE User Manual 1173 1210 12 04 25 R amp S FSQ 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 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
28. 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 SS S User Manual 1173 1210 12 04 123 R amp S FSQ K10x LTE Uplink Remote Commands 9 7 5 4 Remote Commands to Configure the Application Parameters lt NofSubbands gt lt numeric value gt RST 4 Example CONF UL PUSC NOSM 2 Sets the number of subbands to 2 Defining the PUCCH Structure GONFigurerETE EUEIPUCCh DEGOF IS6el x eerte rrr eot tenure tnt estes 124 GONFIgure E TEE DIE Le NEE EE 124 CONFISurebETEEUEPUCORIPORMal EE 124 eer Tee DR REI ier h Le 125 CONFigurelil EISE Naache d e ea ast SSES EEN SSES 125 CONFigure ETEEULIPUCCDINORB 11er tait de teh ether ritate ate Een n ee inh ee EE 125 GONPIgureb EE E Eer EE eege NEES dE 126 CONFigure LTE UL PUCCh DEOFfset lt Offset gt This command defines the delta offset of the PUCCH Parameters lt Offset gt lt numeric value gt Range 0 to 2 RST 0 Example CONF UL PUCC DEOF 2 Sets the delta offset to 2 CONFigure LTE UL PUCCh DESHift Shift This command defines the delta shift of the PUCCH Parameters lt Shift gt lt numeric value gt Range 1 to 3 RST 2 Example CONF UL PUCC DESH 3 Sets the delta shift of the PUCCH to 3 CONFigure LTE UL PUCCh FORMat Format This command selects the
29. 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 1210 12 04 68 R amp S FSQ 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 third 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 SCPI command SENSe LTE SUBFrame SELect on page 126 7 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 95 SCPI command UNIT EVM on page 127 7 3 Defi
30. SUMMary POWer AVERage This command queries the total power SSE a N User Manual 1173 1210 12 04 89 R amp S FSQ K10x LTE Uplink Remote Commands Remote Commands to Read Numeric Results 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 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 E a N User Manual 1173 1210 12 04 90 R amp S FSQ K10x LTE Uplink Remote Commands Remote Co
31. Settings IQ Input 50 Ohm IG Path lo Balanced WA Low Pass v Dither E Exi Box Settings 4 HEME DEED 52 Jee 52 SUE Te EEN 52 Low EE 52 DVO setts niuir iaa EEE seein dv ee 52 User Manual 1173 1210 12 04 51 R amp S FSQ K10x LTE Uplink Configuring and Performing the Measurement DEET Advanced General Settings HO Input Selects the impedance of the baseband inputs Depending on the configuration of the baseband input you can select an impedance of PO O and1kQor1MQ The UO input is available only if you have selected a baseband input source SCPI command INPut IQ IMPedance on page 111 UO Path Selects the input path for baseband inputs You can either select a single input I or Q or a dual input I and Q If you are using single input swapping the and Q branches becomes unavailable The I Q path selection is available only if you have selected a baseband input source SCPI command INPut IQ TYPE on page 112 Balanced Turns symmetric or balanced input on and off If active a ground connection is not necessary If you are using an assymetrical unbal anced setup the ground connection runs through the shield of the coaxial cable that is used to connect the DUT Balancing is available for a baseband input source SCPI command INPut IQ BALanced STATe on page 111 Low Pass Turns an anti aliasing low pass filter on and off The filter has a cut off frequency of 36 MHz and prevents frequencies
32. State gt This command initiates a measurement that determines the ideal reference level Parameters lt State gt OFF Performs no automatic reference level detection ON Performs 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 9 7 1 3 Configuring the Data Capture GENSSIUTEIERAMeCOUN center ttt tentent ttt tantes sets dtes Ls 106 GENSSIUTEIERAMeCOUNGAUTO ettet tette ttt tette ttt etse 107 SENSe L TE FRAMe COUNESTATe ecce te te tttttttettttett ttes ds 107 GENSetSWEep TIME sese ssee seseo eseteteetetetttatitttttart tnt tt rttr tentten ntar eenean a resente neas 107 SENSe LTE FRAMe COUNt lt Subframes gt This command sets the number of frames you want to analyze EE User Manual 1173 1210 12 04 106 R amp S FSQ K10x LTE Uplink Remote Commands Remote Commands to Configure the Application 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
33. are reserved for PUCCH formats 2 2a 2b transmission in each subframe User Manual 1173 1210 12 04 66 R amp S FSQ K10x LTE Uplink Configuring and Performing the Measurement Ich Defining Advanced Signal Characteristics 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 This parameter can be found in 3GPP TS36 211 V8 5 0 5 4 Physical uplink control channel SCPI command CONFigure LTE UL PUCCh N2RB on page 125 Format Configures the physical uplink control channel format Formats 2a and 2b are only sup ported for normal cyclic prefix length This parameter can be found in 3GPP TS36 211 V8 5 0 Table 5 4 1 Supported PUCCH formats SCPI command CONFigure LTE UL PUCCh FORMat on page 124 N_PUCCH Sets the resource index for PUCCH format 1 1a 1b respectively 2 2a 2b You can also select Per Subframe to set the N PUCCH on a subframe level For more information see chapter 6 6 3 Configuring Subframes on page 58 SCPI command CONFigure LTE UL PUCCh NPAR on page 126 6 7 5 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 UL Demod UL Frame Config Global S
34. by a pseudo random sequence generator SCPI commana CONFigure LTE UL DRS SEQHopping on page 120 Delta Sequence Shift Delta Sequence Shift specifies the parameter Ags This parameter can be found in 3GPP TS 36 211 V8 5 0 5 5 1 3 Group hopping A sequence shift function f_ss is defined for the PUCCH The corresponding function for the PUSCH is derived by applying this Delta Sequence Shift SCPI command CONFigure LTE UL DRS DSSHift on page 119 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 npmr_s Npurs SCPI command CONFigure LTE UL DRS NDMRs on page 119 Enable 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 EEUU RA E U User Manual 1173 1210 12 04 61 Defining Advanced Signal Characteristics 6 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 The sounding reference signal settings are part of the Uplink Adv Sig Config tab of the Demodulation Settings dialog box
35. contains all information necessary to configure perform and analyze such measurements e installing the SOWIE ien eee DI EEA a 16 e Application ee TE 16 MEE Io M r 18 3 1 Installing the Software For information on the installation procedure see the release notes of the R amp S FSQ 3 2 Application Overview Starting the application Access the application via the Mode menu gt Press the MODE key and select LTE Note that you may have to browse through the Mode menu with the Next key 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 131 Elements and layout of the user interface The user interface of the LTE measurement application is made up of several elements EE User Manual 1173 1210 12 04 16 R amp S FSQ K10x LTE Uplink Welcome EUTRA LTE 18 08 09 SETTINGS yne State GEN DEMOD RF A Capture Memory dBm Ref 23 6dBm AttE 0 00 0 00 ei MEAS D a ae POE TOW FY Oe Ew PEPIN PPP FRI A POO Te TRIE SETTINGS ee CN E DISPLAY LIST GRAPH ee LEGNNT S re Se en ET E eee eee eee Uw Eun A UI Imm T ball A la ad d a Miu a hab H drei Eeer Wr De d lu ut wall li PTS PTT A TD iU i LL E eS aes 2 0 msidiv 20 1 ms B EVM us Carrier
36. eee eene eene nennen rere n nh nene nens 81 SENSE eeleren E ET EN SENSE e SEM CATEGO DE t 82 IENSel SuEep EGATe AUTO 82 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 NCORrection State This command turns noise correction for ACLR measurements on and off RETE RU E I A e LLLAALLLLLLLLLLLLLLLLLLLLLLLLLLLLLAUAAUACULUTLLLLM R User Manual 1173 1210 12 04 81 R amp S FSQ K10x LTE Uplink Remote Commands Remote Commands to Perform Measurements 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 36 101 Parameters lt Category gt A Category A B Category B RST A Example POW GEM CAT B Sel
37. have different forms of values N mene EI 78 NEE 78 Character ae iscdicevecudsaverasecdvacsuessanevcvaasactsvadestenstises accatuacvaaduatessiuetoettceineccass 79 Character Io iir ETE EAN 79 Ee e D EE 79 User Manual 1173 1210 12 04 77 R amp S FSQ K10x LTE Uplink Remote Commands Introduction 9 2 5 1 Numeric Values Numeric values can be entered in any form i e with sign decimal point or exponent In case 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 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 Th
38. incorrectly received data packets e A tlLui MELLLLLLLLLLLLLLLLLLLLLLLLAAAAAAAAAAAAAAALLLL LL ZSZ M User Manual 1173 1210 12 04 14 R amp S FSQ K10x LTE Uplink Introduction References 2 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 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 1210 12 04 15 R amp S FSQ K10x LTE Uplink Welcome Installing the Software 3 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 FSQ e R amp S FSG This manual
39. 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 RETE RU SS SSRs User Manual 1173 1210 12 04 86 R amp S FSQ K10x LTE Uplink Remote Commands Remote Commands to Read Numeric Results 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 SDQP 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 Example FETC SUMM EVM SDST Returns the EVM of all DMRS resource elements with 16QAM
40. limit line the test fails If all power levels are inside the specified limits the test is passed The R amp S FSQ 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 EES User Manual 1173 1210 12 04 31 R amp S FSQ 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 measurement 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 tr
41. of the captured frames If the overall frame count is inactive the R amp S FSQ analyzes all complete LTE frames currently in the capture buffer SCPI command SENSe LTE FRAMe COUNt STATe on page 107 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 FSQ 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 SCPI command SENSe LTE FRAMe COUNt on page 106 Auto According to Standard Turns automatic selection of the number of frames to capture and analyze on and off If active the R amp S FSQ 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 SCPI command SENSe LTE FRAMe COUNt AUTO on page 107 6 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 Trigger Spectrum Trigger Settings Trigger Mode Free Run Trigger Offset Os Auto Gating Lei Ext Trigger Level Auto 14 v For more information al
42. phase error estimation 4 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 I Since the normalized aver age power of all possible constellations is 1 the equation can be simplified to EVM a nj 4 2 EVM 5j D I 4 3 The average EVM of all data subcarriers is then EE User Manual 1173 1210 12 04 22 R amp S FSQ K10x LTE Uplink Measurement Basics The LTE Uplink Analysis Measurement Application 1 Nrg No 2 3 EVM NosNrx 1 0 n 0 4 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 4 5 where s t is the transmit signal and and Q are the weighting factors describing 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 4 9 and the quadrature mismatch arg 1 AQ 4 7 based on the complex valued estimate A0 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 giv
43. poa Renan ena b acea a nuno E A AA ETE AEEA 116 CONFigure LTE UL PLC CID lt Cellld gt This command defines the cell ID Parameters 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 User Manual 1173 1210 12 04 116 R amp S FSQ K10x LTE Uplink Remote Commands Remote Commands to Configure the Application 9 7 4 3 Configuring Subframes CONFigure FETE UL CS UB Mane Si aene opaca ot tec eto Dn caet e RE EO qx E co 117 CONEouret LTETULSENGO nns 117 CONFigure L TE UL SUBFrame ssubframe ALLoc RBCount sees 117 CONFiourell TE UL SUBtrame subtramez ALL ochROttset 117 CONFigure L TE UL SUBFrame ssubframe ALLoc POWer essere 118 CONFigure L TE UL SUBFrame ssubframe ALLOoc CONT essen 118 CONFigure L T
44. power of the transmission channel in dBm e lt LowerAdjChannelPower gt is the relative power of the lower adjacent channel in dB lt UpperAdjChannelPower gt is the relative power of the upper adjacent channel in dB e lt 1stLowerAltChannelPower gt is the relative power of the first lower alternate channel in dB lt 1stUpperAltChannelPower gt 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 e nthUpperAltChannelPower is the relative power of a subse quent lower alternate channel in dB p e MM User Manual 1173 1210 12 04 101 R amp S FSQ K10x LTE Uplink Remote Commands 9 7 9 7 1 9 7 1 1 Remote Commands to Configure the Application Example CALC1 MARK FUNC POW RES Returns the current ACLR measurement results Usage Query only Remote Commands to Configure the Application e Remote Commands for General Settings eene 102 Advanced General Setl ngs euezceeeeecccceeeeceeenaeze eere rennes nena c Ra srt dead 109 e Configuring Uplink Signal Demodulation eee 113 e Configuring UplinkEEalTigs uiii teer tercie NEESS 115 e Defining Advanced Signal Characheristice 119 Remote Commands for General Setti
45. 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 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 SSE Se A LLALLLLLLLLLLLLLLLLLLLLLLLLLLLLLLTLLLLLL User Manual 1173 1210 12 04 80 R amp S FSQ K10x LTE Uplink Remote Commands Selecting and Configuring Measurements Parameters lt State gt 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 9 3 2 Configuring Frequency Sweep Measurements ACLR and SEM measurements feature some settings particular to those measurements ISENZGelPOWer ACHannel AACHannel cee eecaeae
46. sciet eerie rente rat ra tree rubea eere 25 Relative Power PUCCH 8 SPOCIUM MASK EE 31 Relative Power BUSCH MK RIK CERE 71 Uu Sequence Hopping s esee N Dialog Marker o tree tem netos Number of RB irm temp eere vate ined tees Marker Zoom SC S H Numerical results Digital Input Data Rate seeseen 53 P pim ENS 52 E Phase Error Power spectrum SE 28 Ge Structure EVM vs subframe Delta Offset 66 EVM vS SYMDOl oos i siunaisi Delta Shit sss SE External Attenuation cccccccccscssescessesceessetssesteeseeeseees 44 Format 67 N PUCCH 67 F N 1 cs n 66 N 2 RB nt 66 Frame Number Offset c ccccccscscsscssscesseseseseeesesescetessseees 58 Number of RBs for PUCCH ENEE 66 Frequency PUSCH Structure Full Scale Level sesseeee reete tette tentes 53 Frequency Hopping Mode ENEE 64 Info in Hopping Bits we 65 H Number of Subbands s 65 PUSCH Hopping Offset eee eee ee eereeeeeeeee 65 Header Table cnet ternas 17 User Manual 1173 1210 12 04 136 R amp S FSQ K10x LTE Uplink Index R Reference Level 1 2 I nimmer 43 Reference signal PUSGCHIPUGGCH EE 60 Remote commands Basics On Syntax ird oh rrr Rae 75 Booleari valUes ici rele or erre 78 Capitalization Character data 2 inr rere Data blocks noinen eter rete eis Nume
47. sub frame that has been analyzed lt EVM gt The unit depends on UNIT EVM The following parameters are supported e TRACE1 9 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 9 6 1 14 Inband Emission For the Inband Emission result display the number and type of returns values depend on the parameter e TRACE1 Returns the relative resource block indices x axis values lt RB index gt The resource block index has no unit EE User Manual 1173 1210 12 04 97 R amp S FSQ K10x LTE Uplink Remote Commands Remote Commands to Read Trace Data e TRACE2 Returns one value for each resource block index lt relative power gt The unit of the relative inband emission is dB e TRACE3 Returns the data points of the upper limit line lt limit gt The unit is always dB Note that you have to select a particular subframe to get results 9 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 9 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
48. the result display does not show OFDM symbols that are not part of the measured link direc tion User Manual 1173 1210 12 04 29 R amp S FSQ K10x LTE Uplink Measurements and Result Displays Measuring the Spectrum On the y axis the EVM is plotted either in or in dB depending on the EVM Unit A EVM vs Symbol 10 Symbols div 139 SCPI 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 SCPI command CALCulate lt n gt FEED EVM EVSU TRACe DATA 5 4 Measuring the Spectrum This chapter contains information on all measurements that show the power of a signal in the frequency domain EEUU RA I E I e e LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL MAALAMEESLL J User Manual 1173 1210 12 04 30 R amp S FSQ K10x LTE Uplink Measurements and Result Displays Measuring the Spectrum In addition to the UO measurements spectrum measurements also include two frequency sweep measurements the Spectrum Emission Mask and the Adjacent Ch
49. 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 SCPI command CALCulate lt n gt FEED CONS CONS TRACe DATA 5 6 Measuring Statistics This chapter contains information on all measurements that show the statistics of a signal UG ET 37 Tee e Ee ET 38 Dit STEAM DEET 39 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 EE User Manual 1173 1210 12 04 37 R amp S FSQ K10x LTE Uplink Measurements and Result Displays Measuring Statistics A CCDF 2 dB div SCPI 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
50. 2 Full Scale Level Defines the voltage corresponding to the maximum input value of the digital baseband input SCPI command INPut lt n gt DIQ RANGe UPPer on page 113 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 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 i i v MA R amp S FSQ K10x LTE Uplink Configuring and Performing the Measurement DEET Configuring Uplink Signal Demodulation Channel Estimation Rage deese cateat ete one phe cctsnasensddsetaqanenteden eteae 54 Compensate DC E ET 54 Scrambling or Coded NEE 54 Ae ee IEN 54 Suppressed Interference Synchronization esses 55 Channel Estimation Range Selects the method for channel estimation Choose whether to use only the pilot symbols to perform channel estimation or both pilot and payload carriers SCPI command SENSe LTE UL DEMod CESTimation on page 114 Compensate DC Offset Activates or deactivates DC offset compensation when calculating measurement results According to 3GPP TS 36 101 Annex F 4 the R amp S FSQ removes the carrier le
51. 2 5 4 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 9 2 5 5 Block Data Block data is 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 EE User Manual 1173 1210 12 04 79 R amp S FSQ K10x LTE Uplink Remote Commands Selecting and Configuring Measurements 9 3 Selecting and Configuring Measurements 9 3 1 Selecting Measurements CALCU A EE 80 p racihsidgliie eR m 80 CALCulate lt n gt FEED lt DispType gt This command selects the measurement and result display Parameters lt DispType gt String containing the short form of the result display EVM EVCA EVM vs carrier
52. 3 1210 12 04 93 R amp S FSQ K10x LTE Uplink Remote Commands Remote Commands to Read Trace Data Example Bit Stream Sub Allocation Code Symbol Modulation Bit Stream H Index o 03 00 OO OO 01 Oz OZ 01 02 01 OO 00 2 01 00 03 01 02 3 01i 02 00 01 00 02 00 00 00 03 TRAC DATA TRACE1 would return 0 40 0 2 0 03 O1 02 03 03 00 00 00 O1 02 02 continues like this until the next data block starts or the end of data is reached 0 40 0 2 32 03 03 00 00 03 O1 02 00 O1 00 9 6 1 4 Capture Buffer For the Capture Buffer result display the command returns one value for each UO sample in the capture buffer absolute power The unit is always dBm The following parameters are supported e TRACE1 9 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 f of values probability The unit is always 96 The first value that is returned is the number of the following values e TRACE2 Returns the corresponding power levels x axis f of values relative power The unit is always dB The first value that is returned is the number of the following values 9 6 1 6 Channel Flatness For the Channel Flatness result display the command returns one value for each trace point relative power The unit is always dB The following parameters are supported EE Us
53. 4 Input Source Gs e 50 B Interface ee E 16 Balanced Input ssssssssse eene 52 K Bit Stream PE X 39 Key C v d 71 Capture buffer ertet ttt titer ntn 27 L Capture Time 45 CCDF 37 Bd 52 Cell ID CH Cell Identity Group a 57 M Channel Bandwidth 42 Channel Estimation Range 8 54 Markt E 72 Channel flatness sssssssss 85 Measurement Channel flatness difference ETE 2 36 ACLR RM I CE 32 Channel flatness group delay 35 allocation SUMIMANY estate eegen 38 Compensate DC Offset 54 bit stream 39 Configurable Subframes 58 capture elt CEET 27 Configuration Table Kaes 58 CCDF Rasthruhhauasashasaususuhasuasassasasesuasaussasususeusesuasuasasuuunenso 37 Constellation diagram P 37 channel flatness es 35 Constellation Selection earann 70 channel flatness difference ssesssse 36 channel flatness grdel ssssssssssssss 35 D constellation es OT EVM VS Cartier noon ten etn rnnt nena 28 Demodulation reference signal sse 60 EVM vs subframe ENEE 30 Demodulation Reference Signal EVM vs symbol Delta Sequence Shift sss sss 61 inband emission Enable n PRS 8 NUMPCNICAl P Group HOPPING eege BEA power spectrum 94 n DRMS eee emere result Sumtary
54. CompensateDCOffset 1 UseBitStreamScrambling 1 ChannelEstimationRange 2 AutoDemodulation 1 gt lt stControl gt lt FrameDefinition gt All settings that are available 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 EE User Manual 1173 1210 12 04 73 R amp S FSQ K10x LTE Uplink File Management SAVE RECALL Key Loading an UO File The R amp S FSQ is able to process I Q data that has been captured with a R amp S FSQ 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
55. D CORLL e 73 8 1 File Managet o enit erint t Lrseecee pedi dE 73 8 2 SAVE RECALL Key icone ieciek ut nda ndo ko RARE ER FRE RE a En XXE ccueauccuesecedsndsaunsusupnratcs 74 9 Remote Commands geseet 75 9 1 Overview of Remote Command Suffixes eeeeeeeeeeeneeee n 75 CES H TTT 75 9 2 1 Long and Re ul EE 76 9 2 2 Numere SUMKOS peine ER aee ede eter baee ege AER AAA 76 9 2 8 Optional Keywords riii peace Ede denice ieee Leo Er de M Er Me ERR 77 9 2 4 Alternative Keywords occse AKANA REEE ANANA REENER RANS ANNER 77 925 SCP Parameters oa a A AAE E A era T77 9 3 Selecting and Configuring Measurements eene 80 9 3 1 Selecting Measurements erred tene AKARANA E REL ene RR Rd e RARR NEA 80 9 3 2 Configuring Frequency Sweep Measurements 81 9 4 Remote Commands to Perform Measurements eee 82 9 5 Remote Commands to Read Numeric Results eeeeeseeeess 84 9 6 Remote Commands to Read Trace Data eeeeeeeennn 91 9 6 1 Using the TRACe DATA Commande 91 9 6 2 Remote Commands to Read Measurement Results eese 100 9 7 Remote Commands to Configure the Application eeseeeeeersess 102 9 7 1 Remote Commands for General Gettngs 102 9 7 2 Advanced General Settings eeeeeieeeesiisseeeee eene nennen tnnt 109 9 7 3 Configuring Uplink Signal Demodulation
56. DIC RANGE UP EE 113 INPut lt n gt DIQ SRATe 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 o Ml User Manual 1173 1210 12 04 112 R amp S FSQ K10x LTE Uplink Remote Commands Remote Commands to Configure the Application 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 ScaleLevel RST 1V Default unit V Example INP DIQ RANG 0 7 Sets the full scale level to 0 7 V 9 7 3 Configuring Uplink Signal Demodulation 9 7 3 1 Configuring the Data Analysis ISENSeIEETELEUE DEMOSGUAUITO EE 113 SENSej L TE UL DEMod CBSCrambling ecce tenens 113 SENSeILETEFUL DEMod e Ree EE 114 SENS amp IEETEEUL DEMoOG CESTImalion actrice inne aden a 114 ISENSeILTEIUL DEMod Slgne eterne tette tta 114 SENSe L TE UL DEMod AUTO State 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 lt State gt This command turns scrambling of coded bits for uplink signals on and off Parameters lt State gt ON OFF RST ON Example UL DEM CBSC OFF Deactivates
57. E He d OC E EE 112 SENSe IQ DITHer STATe eccentric t teta 112 INPut IQ BALanced STATe State This command selects if the UO inputs are symmetrical balanced or asymmetrical unbalanced This command requires option R amp S FSQ B71 Parameters State ON OFF RST ON Example INP IQ BAL ON Specifies symmetrical balanced IQ inputs INPut IQ IMPedance Impedance This command selects the input impedance for UO inputs This command requires option R amp S FSQ B71 Parameters Impedance LOW HIGH RST LOW Example INP IQ IMP LOW Selects low input impedance for UO input lM User Manual 1173 1210 12 04 111 R amp S FSQ K10x LTE Uplink Remote Commands Remote Commands to Configure the Application INPut IQ TYPE Path This command selects the input path for baseband input Parameters Path IQ I j Q l only Q Q only Example INP IQ TYPE I Uses input as the baseband path SENSe IQ LPASs STATe State This command turns a baseband input lowpass filter on and off Parameters State ON OFF RST ON Example IQ LPAS ON Activate the input lowpass SENSe IQ DITHer STATe State This command adds or removes a noise signal into the signal path dithering Parameters State ON OFF RST OFF Example IQ DITH ON Activate input dithering 9 7 2 4 Configuring the Digital UO Input USIP tin DI SRAM KE 112 INPutsne
58. E UL SUBtrame subtramez ALL ocMOtDulation nene 118 CONFigure LTE UL CSUBframes lt NofSubframes gt This command selects the number of configurable subframes in the uplink signal 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 User Manual 1173 1210 12 04 117 R amp S FSQ K10x LTE Uplink Remote Commands Remote Commands to Configure the Application 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 lt Power gt This command defines the relative power of an uplink allocation Parameter
59. EL RU mE I A LL LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLUULUUALZZXZSAXESI User Manual 1173 1210 12 04 76 R amp S FSQ K10x LTE Uplink Remote Commands Introduction 9 2 3 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 have 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 9 2 4 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 9 2 5 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
60. FETCh SUMMary EVM PSIGnal AVERage esses 86 FETCh SUMMary EVM SDOP EAVERagel 1a eire creen n ade erede adde e PRAE 87 FETCh SUMMary EVMISDSTDAVERage tienden te NENNEN ra neant Enn er on nen 87 FETCh SUMMary EVM UCCD AVERagel eene tenent tette tens 87 FETICh SUMMany EVMIUOGCH EAVERage 1 222 1 12 131 ASA ESA 88 FETCh SUMMary EVMIUSOP DAVER4Age 2 rr inier pecie coe cte erue ER Ideen ec Iud 88 FETCh SUMMary EVM USST AVERage 2 reete neun the eun Regni anti nnn 88 FETCh SUMMarv FERbRor MAXIMUM nennen hens re rne ntn n nsns aaa 88 FETCh SUMMary FERRoOEMIMNITUE 2 122 cin cie EE EES Hand cen ER Rk eR EE MA DIO neds 88 ai ler ee Eiere FERRO Re EE 88 FE TCh SUMMarv GlM alance MANimum eee caeeeeeeeeeeeeeeaeeaeaaaaeeeeeeeesanaanees 89 FEFCh SUMMary GIMBalance Hr EE 89 FETCh SUMMary GIMBalance JAVERage 0 2 cescceeececcataaeaeesessreneecdtaceeessananevereetecanass 89 ai ler ee Ee ee e ANNIE eiaeiiai iai aai EEA 89 FETCh SUMMary IQOFfset MINIMUM 0 22 ecceeece cece eee eeeeeeeeeeeeeeeeeeaeeaeaaaeaaeeeeeeeeeeasaaaeaaes 89 FETCh HSUMMarydQOFfset AVERage ranae teet tot ene eet 89 FETCHISUMMary Engen EE 89 FETCHISUMMary OSTPiMINWMUINY e cence dccencecenanactccccecaranaceddescecdcaedeeteaseee canes 89 FEIGCh SUMManzPOWerMADXImbllqi ege SEENEN ENEE ga 89 FETCHSUMMaryiPOWerMINIMUM 21r naana t nero repete rab deena AEN 89 FETCh SUNMary
61. 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 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
62. GCALeAtOo nennen nennen renes nennen 130 DISPlay WINDow TRACev GCAletx caleOttGet rere eorornsnnnrenererersennn 130 DISPlay WINDow TRACe Y SCALe FIXScale PERDIV 2 c cceeceeeeceeeeeeeeeeeteeeeseaeeeneees 130 LEE User Manual 1173 1210 12 04 129 R amp S FSQ K10x LTE Uplink Remote Commands Configuring the Software 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 display 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 9 8 Analyzing Measurement Results on page 126 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 l
63. NPULSELOCt E 110 INPut nm ATTenuationsahalyzeres oriri pere ae a na daanan e Ee EEERRSRAPRERRE RSS rRETREERERM e Re NEA eMe RR 105 INPuten DIOQ RANGe UPPet eee rte reden Sines tenes ee denies assis nena 113 hg asasleBegcc c 112 INPut n EATT INPut lt n gt EATT AUTO iind etiarn ttp b tree ie pe t b Peel spl te ut eye Dye cedat coe ud ed 105 INPut lt sn gt EAT T STA utri mrt er rte ar rese cce a ip ieu eee de nde KAES 105 INPut ris EIETer YIG AD TQ suuni tie eto aa a e Dee i Aine elie i Toda rg de d 110 INPut n FIETer deu ME 110 MMEMory LOAD DEModsetting 2 nre ere relance denen danni Fri e npa cae kakainan 131 TRAC SHO le AE 111 Ne E RRE 99 TRIGger SEQuence HOLDoff analyzer eese enne nne nnnee trn en ense ene enne ntn nnns 108 TRIGger SEQuence IFPower HOLDoff TRlGoert GEOuencellFbowerHvGTeresls nnne 108 TRIGger SEQuence LEVel analyzer POWer seessessessseeeseeneeeee nennen neret nrennneen rne 109 TRIGger SEQuence MODE inen rotor ttn t et rrr ee Ih rre dnt tbe ERR VUES ATERA AET EdE UNITEBS TR C aed UNITIEV EE SENSe FREQUENCY CENT Gli ebessen ee Eeer SENSe 1Q DITHORES TAT DE IIS ETIRIAHEITIBSNCIEU E dee EELER SENSe POWer ACHannel AACHannel SENSe POWer AUTO lt analyZer gt TIME carretera tnnt tnte
64. P ATT 10 Defines an RF attenuation of 10 dB INPut lt n gt EATT lt Attenuation gt This command defines the electronic attenuation level If the current reference level is not 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 FSQ B25 but not if R amp S FSQ 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 FSQ B25 but not if R amp S FSQ 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 EE User Manual 1173 1210 12 04 105 R amp S FSQ K10x LTE Uplink Remote Commands Remote Commands to Configure the Application If on electronic attenuation reduces the mechanical attenuation whenever possible This command is available with option R amp S FSQ B25 but not if R amp S FSQ 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
65. PUCCH format Note that formats 2a and 2b are available for normal cyclic prefix length only User Manual 1173 1210 12 04 124 R amp S FSQ K10x LTE Uplink Remote Commands Remote Commands to Configure the Application Parameters lt Format gt F1N F1 normal F1S F1 shortened F1AN F1a normal F1AS F1a shortened F1BN F1b normal F1BS F1b shortened F2 F2 F2A F2a F2B F2b F3 F3 RST F1N Example CONF UL PUCC FORM EIN Sets the PUCCH format to F1 normal CONFigure L TE 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 LTE UL PUCCh NORB lt ResourceBlocks gt This command selects the number of resource blocks for the PUCCH Parameters ResourceBlocks lt numeric value RST 0 Example CONF UL PUCC NORB 6 Sets the number of resource blocks to 6 SSES User Manual 1173 1210 12 04 125 R amp S FSQ K10x LTE Uplink Remote Commands Analyzing Measurement Results 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
66. PUSCh F HOFf S6t aiite norit etn ettet hr terit rennen eant Rae 123 CONFigure ETETFUE PUSCh FHOP IIBB iine tni theatro nennen tno Eten th nk retenir gedd 123 CONFigure ETE UE PUSCHh NONSM tonta tnn hne rte rero rte tee erre tans 123 CONFigurel LTEFUR iem 117 GCONFigure ETEEULESRS BHOP nii eer ect PE EA reed ec ir ra DE Ea TEE AEEA 120 CONFigure ETEEFUESRS BSRS 3 cheated Abarat eet nee een Fes Ya eu LL RR DE gu Ru ane 121 CONFigure LTE UL SRS e 121 CONFigure Du RTE de 121 CONFigurel DN RT 121 SSES User Manual 1173 1210 12 04 132 R amp S FSQ K10x LTE Uplink List of Commands CONFigure E TEEFULSRS NREROG retenta erii n gene etn ee peo b rer ces dena Aa a aE Tende rea Nea PR GERA CONFigure ETEEULE SRS POWNer rrt pee P ET HE REEF E Er DD EE gne Ege CONFigure TET UECSRS EE CONEFigure ETETULESRS SUGCODHfIG rti od eet et o e erp e Ye dE ad e Ve deed da CONFigure LTEFUL SRS Ee BE CONFigure LTE UL SUBFrame ssubframe ALLOC CONT ssssssssssssssseeeneeen rennen eene rnnt enn CONFigure LTE UL SUBFrame lt subframe gt ALLoc MODulation CONFiourell TETUL SGUBtrame subtframez AL LochbOWer ener CONFigure L TE UL SUBFrame ssubframe ALLoc RBOCount essere CONFigure L TETUL GUBFrame subtramez Al LochpGOFtset CONFigure ETEEUESTDD SPSO 5 uo dt e eee rH iene evasive ERICH GEH EE AERE YER lo IC RER R I RI KRITT EE CONFigur
67. Put lt n gt EATT on page 105 6 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 at Mimo Advanced Trigger Spectrum Data Capture Settings Capture Time 40 1 ms Overall Frame Count Num of Frames to Analyze 1 Auto Acc to Standard Lei Capture NEE 45 Overall Frome Count EE 46 Number of Frames to Analyze aie tee bea dier reta n eun EEN 46 Auto According to SONGI M 46 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 default the application captures 20 1 ms of data to make sure that at least one com plete LTE frame is captured in one sweep SCPI command SENSe SWEep TIME on page 107 User Manual 1173 1210 12 04 45 R amp S FSQ K10x LTE Uplink Configuring and Performing the Measurement DEET General Settings 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
68. R amp S9FSQ K10x LTE Uplink LTE Uplink Measurement Application User Manual 1173 1210 12 04 Test amp Measurement ROHDE amp SCHWARZ User Manual This manual describes the following firmware applications e R amp S FSQ K101 EUTRA LTE FDD Uplink Measurement Application 1308 9006 02 e R amp S FSQ K105 EUTRA LTE TDD Uplink Measurement Application 1309 9000 02 This manual is applicable for the following R amp S analyzer models with firmware 4 7x SP4 and higher e R amp S FSQ3 1307 9002K03 e R amp S FSQ8 1307 9002K07 e R amp S FSQ26 1307 9002K13 e R amp S amp FSQA0 1307 9002K30 e R amp SGFSGS 1309 0002 08 e R amp SGFSG13 1309 0002 13 2012 Rohde amp Schwarz GmbH amp Co KG Muehldorfstr 15 81671 Munich Germany Phone 49 89 41 29 0 Fax 49 89 41 29 12 164 E mail info rohde schwarz com Internet http Awww 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 S9FSQ is abbreviated as R amp S FSQ Customer Support Technical support where and when you need it For quick expert help with any Rohde amp Schwarz equipment contact one of our Customer Support Centers A team of highly qualified engineers provides telephone support an
69. ST PCT Example UNIT EVM PCT EVM results to be returned in 96 9 8 2 Using Markers e E GE un EE 128 CALCulate n MARKer me ESTATe 2 cere net reor EE ENEE aae aaa inaa iniaa EEN 128 CALCulate lt sn gt MARKer lt sm gt TR ACe sinas ssssh isi sen sits sess sina sn s 128 CAL Culate nz M Abkercmz NA 128 GAL Culate lt pim MARK rn EE 129 User Manual 1173 1210 12 04 127 R amp S FSQ K10x LTE Uplink Remote Commands Analyzing Measurement Results 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 Switches off all markers Usage Event CALCulate lt n gt MARKer lt m gt STATe State This command turns markers on and off Suffix lt m gt 1 Parameters State ON OFF RST OFF Example CALC MARK3 ON Switches on marker 3 or switches to marker mode CALCulate lt n gt MARKer lt m gt TRACe Trace This command selects the trace the marker is positioned on Note that the corresponding trace must have a trace mode other than Blank If necessary the command activates the marker first Suffix m 1 Parameters Trace 1to6 Trace number the marker is assigned to CALCulate lt n gt MARKer lt m gt X Position This command moves a marker to a particular coordinate on the x axis If necessary the command activates the marker Suffix m 1 Parameters Position Nu
70. TE Uplink Analysis Measurement Application cesses 20 4 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 common phase error fj received sample in the time domain Rx uncompensated received sample in the frequency domain User Manual 1173 1210 12 04 19 R amp S FSQ K10x LTE Uplink Measurement Basics 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 4 2 Ove
71. Triggering Measurements TRlGoert GtEOuencelHOL Doft anayzerz nennen nennen nsns 108 TRIGger SEQuence IFPower HOLJBDIfr reae oco ca Caere ee Ru ore dua EO ode pena 108 TRIGger SEQuence IFPowetr HYS Teresis enirn t hesterno ndn eue eR SEENEN 108 TRIGger SEQuenceJ LEVel analyzer POWer esses enne nennen 109 TRIGger SEQuence MODE ave id nee ada a o a Ln LH edu od ed 109 TRIGger SEQuence HOLDoff lt analyzer gt Offset This command defines the trigger offset Parameters Offset numeric value RST 0s Default unit s Example TRIG HOLD 5MS Sets the trigger offset to 5 ms TRIGger SEQuence 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 RETE RU EE M User Manual 1173 1210 12 04 108 R amp S FSQ K10x LTE Uplink Remote Commands Remote Commands to Configure the Application 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 comm
72. UL CYCPrefix lt PrefixLength gt This command selects the cyclic prefix for uplink signals Parameters lt PrefixLength gt NORM Normal cyclic prefix length EXT 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 SSE N User Manual 1173 1210 12 04 103 R amp S FSQ K10x LTE Uplink Remote Commands Remote Commands to Configure the Application Parameters lt Frequency gt lt numeric value gt Range fmin to fmax RST 1 GHz Default unit Hz Example FREQ CENT 2GHZ Set the center frequency to 2 GHz 9 7 1 2 Configuring the Input Level CONFloure POWerENbeched lO analvzerz enne nnn 104 CONFloure POWerENbeched RE analyzerz nennen nnns 104 DISPlay WINDow lt n gt TRACe lt t gt Y SCALe RLEVel OFFSet 0 ccceeeeeceeeeeeeeeeeeeeaeeeees 104 INPut lt n tAT Tentiation lt analyZeres a2 uegddeEeEERKEKEEEREEEEEREEESEEEEREEEE ENNER NSEESNEESE EEN AER 105 TUS a Sie EE 105 IPE EAT ER KE 105 INPUtsnetBAT TER e EE 105 SENSe POWer AUTO analyze
73. above from being mixed into the usable frequency range Note that if you turn the filter off harmonics or spurious emissions of the DUT might be in the frequency range above 36 MHz and might be missed You can turn it off for measurement bandwidths greater than 30 MHz The low pass filter is available for a baseband input source SCPI command SENSe IQ LPASS STATe on page 112 Dither Adds a noise signal into the signal path of the baseband input Dithering improves the linearity of the A D converter at low signal levels or low modulation Improving the linearity also improves the accuracy of the displayed signal levels The signal has a bandwidth of 2 MHz with a center frequency of 38 93 MHz Dithering is available for a baseband input source SCPI command SENSe IQ DITHer STATe on page 112 EEUU RU EE at User Manual 1173 1210 12 04 52 6 4 4 6 5 6 5 1 Configuring Uplink Signal Demodulation Configuring the Digital UO Input The digital UO settings contain settings that configure the digital UO input The digital UO settings are part of the Advanced Settings tab of the General Set tings dialog box Advanced E Sampling Rate Input Data Rate EE 53 Full Scale EE 53 Sampling Rate Input Data Rate Defines the data sample rate at the digital baseband input The sample rate is available for a digital baseband input source SCPI command INPut lt n gt DIQ SRATe on page 11
74. ace 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 SCPI command CALCulate lt n gt FEED SPEC SEM TRACe DATA ACLR Starts the Adjacent Channel Leakage Ratio ACLR measurement _ _ _ _ha RA N User Manual 1173 1210 12 04 32 R amp S FSQ K10x LTE Uplink Measurements and Result Displays Measuring the Spectrum The Adjacent Channel Leakage Ratio measures the power of the TX channel and the power of adjacent and alternate channels to the left and right side of the TX channel In this way you can get information about the power of the channels adjacent to the trans mission channel and the leakage into adjacent channels The results show the relative power measured in the two nearest channels either side of the transmission channel By default the ACLR settings are derived from the LTE Channel Bandwidth You can change the assumed adjacent channel carrier type and the Noise Correction on page 48 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 SWT 500 00 ms 2 93 MHz div Atable above the result display contains information about the measurement in numerical form e Channel Shows the channel type TX Adjacent or Altern
75. akage I Q origin offset from the evaluated signal before it calculates the EVM and in band emissions SCPI command SENSe LTE UL DEMod CDCoffset on page 114 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 ree Scrambling poe Fig 6 1 Source for bitstream results if scrambling for coded bits is on and off codewords Modulation SCPI command SENSe LTE UL DEMod CBSCrambling on page 113 Auto Demodulation Turns automatic demodulation on and off If active the R amp S FSQ automatically detects the resource allocation of the signal User Manual 1173 1210 12 04 54 R amp S FSQ K10x LTE Uplink Configuring and Performing the Measurement DEET Configuring Uplink Signal Demodulation Automatic demodulation is not available if the suppressed interference synchronization is active SCPI command SENSe LTE UL DEMod AUTO on page 113 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 case the UEs have different frequency offsets Note that Auto Demod
76. and 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 Parameters lt Source gt EXTernal Selects external trigger source IFPower Selects the IF power trigger source IMMediate Selects free run trigger source RST IMMediate Example TRIG MODE EXT Selects an external trigger source 9 7 2 Advanced General Settings 9 7 2 1 Controlling UO Data RANS sad cd ar d al d a d dll 109 SENSe SWAPiq State This command turns a swap of the and Q branches on and off Parameters State ON OFF RST OFF ERECTUS RE I E M User Manual 1173 1210 12 04 109 R amp S FSQ K10x LTE Uplink Remote Commands Remote Commands to Configure the Application Example SWAP ON Turns a swap of the and Q branches on 9 7 2 2 Controlling the Input For information on the remote commands for reference level and attenuation settings see chapter 9 7 1 2 Configuring the Input Level on page 104 le EE 110 INPUTSRE FIL TER YVIGIAUT O DEE 110 INPA FIL Ten YID S TATe icit eere eh Een ei ro te eoe ere cere va aco dece 110 TRAGCeEIQFIETer FLATNESS eiie re itor EENS RE ERR ARR Rana 111 INPut SELect Source This command selects the signal source Parameters Source RF Selects the RF input as the signal s
77. annel Leakage Ratio e Frequency Sweep Measurement ccccecccecceccceceanecaeeeeceeeceeeceeeceeeeeseeeseeeteess 31 e VO E EE 34 5 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 LTE 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 5 4 1 1 Available Measurements 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 thatis 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
78. arameter 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 Manual of the R amp S FSQ Remote command examples Note that some remote command examples mentioned in this general introduction may not be supported by this particular application 9 2 1 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 9 2 2 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 RE
79. ary SERRor AVERage on page 90 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 1210 12 04 26 R amp S FSQ 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 89 e Crest Factor Shows the peak to average power ratio of captured signal FETCh SUMMary CRESt AVERage on page 85 5 2 Measuring the Power Over Time This chapter contains information on all measurements that show the power of a signal over time Capture BUulfer Eed ENEE EERSTEN REESEN En 27 Capture Buffer The capture buffer result display shows the complete range of captured data for the last data capture The x axis represents the time scale The maximum value of the x axis is equal to the capture length that you can set in the General Settings dialog box The y axis represents the amplitude of the captured UO data in dB
80. ate Channel e Bandwidth Shows the bandwidth of the channel e Spacing Shows the channel spacing 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 D Peer Ref 262dBm App 0 00 0 00dB Che SCPI 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 User Manual 1173 1210 12 04 33 R amp S FSQ K10x LTE Uplink Measurements and Result Displays Measuring the Spectrum 5 4 2 1 Q Measurements Power E d MER 34 NMDSN EMISSION oeaan aa aaea aaa aa a aaa 34 Channel FIatfless i EE 35 Channel Group Delay EE 35 Channel Flatness Difference sees nennen nennen nene eren nnne tnn nnns 36 Power Spectrum Starts the Power Spectrum result display This result display shows the power density of the complete capture buffer in dBm Hz The displayed bandwidth depends on bandwidth or number of resource blocks you have set For more information see Channel Bandwidth Number of Resource Blocks on page 42 The x axis represents the frequency On the y axis the power level is plotted B Power Spectrum dBrniHz cw 1 54 MHzidiv SCPI command CALCulate lt screenid gt FEED SPEC PSPE TRACe DATA Inband Emission Starts the Inband Emission result display This result display show
81. calculated as following Pors PuetPpuscu Pors ottset The PUSCH Power level Ppyscy can vary per subframe SCPI command CONFigure LTE UL DRS PUSCh POWer on page 120 Relative Power PUCCH Sets the power offset of the Demodulation Reference Signal DRS relative to the power level of the PUCCH allocation of the corresponding subframe The selected DRS power offset Ppas offset applies for all subframes Depending on the allocation of the subframe the effective power level of the DRS is calculated as following ERREUR E E EE N User Manual 1173 1210 12 04 60 R amp S FSQ K10x LTE Uplink Configuring and Performing the Measurement Eh Defining Advanced Signal Characteristics Pors PuetPpuccutPors offset for PUCCH allocation The PUCCH Power level Ppyccy can vary per subframe SCPI command CONFigure LTE UL DRS PUCCh POWer on page 119 Group Hopping Indicates whether group hopping for the demodulation reference signal is activated or not 17 different hopping patterns and 30 different sequence shift patterns are used for group hopping PUSCH and PUCCH use the same group hopping pattern that is calculated if the group hopping is enabled The group hopping pattern is generated by a pseudo random sequence generator SCPI command CONFigure LTE UL DRS GRPHopping on page 119 Sequence Hopping Turns sequence hopping for the uplink demodulation reference signal on and off Sequence hopping is generated
82. ctrum SCPI command CONFigure LTE UL PUCCh NORB on page 125 Delta Shift Sets the delta shift parameter i e the cyclic shift difference between two adjacent PUCCH resource indices with the same orthogonal cover sequence OC The delta shift determinates the number of available sequences in a resource block that can be used for PUCCH formats 1 1a 1b This parameter can be found in 3GPP TS36 211 V8 5 0 5 4 Physical uplink control channel SCPI command CONFigure LTE UL PUCCh DESHift on page 124 Delta Offset Sets the PUCCH delta offset parameter i e the cyclic shift offset The value range depends on the selected Cyclic Prefix This parameter can be found in 3GPP TS36 211 V8 5 0 5 4 Physical uplink control channel SCPI command CONFigure LTE UL PUCCh DEOFfset on page 124 N 1 _cs Sets the number of cyclic shifts used for PUCCH format 1 1a 1b in a resource block used for 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 follow N 2 cs 12 N 1 cs 2 This parameter can be found in 3GPP TS36 211 V8 5 0 5 4 Physical uplink control channel SCPI command CONFigure LTE UL PUCCh N1CS on page 125 N 2 RB Sets bandwidth in terms of resource blocks that
83. d will work with you to find a solution to your query on any aspect of the operation programming or applications of Rohde amp Schwarz equipment Up to date information and upgrades To keep your instrument up to date and to be informed about new application notes related to your instrument please send an e mail to the Customer Support Center stating your instrument and your wish We will take care that you will get the right information Europe Africa Middle East Phone 49 89 4129 12345 customersupport rohde schwarz com North America Phone 1 888 TEST RSA 1 888 837 8772 customer support rsa rohde schwarz com Latin America Phone 1 410 910 7988 customersupport la rohde schwarz com Asia Pacific Phone 6565 13 04 88 customersupport asia rohde schwarz com China Phone 86 800 810 8228 86 400 650 5896 customersupport china rohde schwarz com ROHDE amp SCHWARZ 1171 0200 22 06 00 R amp S FSQ K10x LTE Uplink Contents 1 1 1 2 2 1 2 2 2 2 1 2 2 2 2 2 3 2 2 4 2 2 5 2 3 3 1 3 2 3 3 4 1 4 2 4 3 4 3 1 4 3 2 5 1 5 2 5 3 5 4 5 4 1 5 4 2 5 5 Contents PCE AG Cacao cs eessen eege 7 Documentation Overview esses eene nennen nnn nn nnne nennen nnne nannten nnns 7 Typographical Conventions eese enne nennen nien nennen 8 iugo Seulo p e M 9 Requirements for UMTS Long Term Evolution eene 9 Lon
84. define a trigger 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 SCPI command Trigger mode TRIGger SEQuence MODE on page 109 Trigger level TRIGger SEQuence LEVel analyzer POWer on page 109 Trigger offset TRIGger SEQuence HOLDoff analyzer on page 108 6 3 Configuring Spectrum Measurements The Spectrum settings contain parameters to configure spectrum measurements ACLR and SEM in particular 6 3 1 Configuring SEM Measurements The SEM settings are part of the Spectrum tab of the General Settings dialog box User Manual 1173 1210 12 04 47 R amp S FSQ K10x LTE Uplink Configuring and Performing the Measurement Deeg Configuring Spectrum Measurements General MIMO Advanced Trigger SEM Settings Channel Category A ALS EE 48 Category Selects the limit definitions for SEM 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 SCPI command SENSe POWer SEM CATegory on page 82 6 3 2 Configuring ACLR Measurements The ACLR settings are part of the Spectrum tab of the General Settings
85. 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 tab is the active one You can switch between the tabs with the cursor keys e Performing MessuUremebls iie entrer oie Lc rei Edu De RE Ree e qud 40 e Gona Sell ds cca rtr eo eoe road e Lond aab hae deae eee edd 41 e Configuring Spectrum Measurements A 47 e Advanced General SSUINGS EE 49 e Configuring Uplink Signal Democdulaton AAA 53 e Configuring Uplink Frames cc0 cccecccccesseeceecesnecteceessacceeeecnsacceeeeesneceasersanateeeresie 56 e Defining Advanced Signal Characteristics essseeeseeeeeeeeeee 59 6 1 Performing Measurements The sweep menu contains functions that control the way the R amp S FSQ performs a mea surement Single Sweep and Continuous Sweep In continuous sweep mode the R amp S FSQ 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 FSQ captures data performs the measurement and updates the result display exactly once after the trigger event After this process the R amp S FSQ interrupts the mea surement p VVM Y
86. describe the installation of the firmware new and modified functions eliminated problems and last minute changes to the documentation The corresponding firmware version is indicated on the title page of the release notes The most recent release notes are provided in the Internet 1 2 Typographical Conventions The following text markers are used throughout this documentation Convention Description Graphical user interface ele All names of graphical user interface elements on the screen such as dia ments log boxes menus options buttons and softkeys are enclosed by quota tion marks KEYS Key names are written in capital letters File names commands program code File names commands coding samples and screen output are distin guished by their font Input Links Input to be entered by the user is displayed in italics Links that you can click are displayed in blue font References References to other parts of the documentation are enclosed by quotation marks User Manual 1173 1210 12 04 R amp S FSQ K10x LTE Uplink Introduction Requirements for UMTS Long Term Evolution 2 Introduction 2 1 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 net
87. ditional software option The user manuals are available in PDF format in printable form on the Documentation CD ROM delivered with the instrument In the user manuals all instrument functions are described in detail Furthermore they provide a complete description of the remote con trol commands with programming examples The user manual for the base unit provides basic information on operating the R amp S FSQ in general and the Spectrum mode in particular Furthermore the software options that enhance the basic functionality for various measurement modes are described here An introduction to remote control is provided as well as information on maintenance instru ment interfaces and troubleshooting In the individual option manuals the specific instrument functions of the option are described in detail For additional information on default settings and parameters refer to the data sheets Basic information on operating the R amp S FSQ is not included in the option manuals Service Manual This manual is available in PDF format on the CD delivered with the instrument It describes how to check compliance with rated specifications instrument function repair troubleshooting and fault elimination It contains all information required for repairing the R amp S FSQ by replacing modules User Manual 1173 1210 12 04 7 R amp S FSQ K10x LTE Uplink Preface Release Notes Typographical Conventions The release notes
88. e Frequency hopping is applied according to 3GPP TS36 213 SCPI command CONFigure LTE UL PUSCh FHOP ITHB on page 123 6 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 UL Demod UL Frame Config PUCCH Structure Number of RB for PUCCH 0 Delta Shift 2 Delta Offset N 1 cs 5 N 2 RB 1 Format F1 normal N PUCCH 0 No ar mRBS Tor PUCCOH WEE 66 BERG Eet ee Ee 66 Delta ONSE 3 n LED ite eite A tes igi el eters 66 REC c EE 66 AEA io MMC I E 66 POET CRT TET 67 N bc e EE 67 User Manual 1173 1210 12 04 65 R amp S FSQ K10x LTE Uplink Configuring and Performing the Measurement Deet Defining Advanced Signal Characteristics No of RBs for PUCCH Number of RBs for PUCCH configures the number of resource blocks for PUCCH The resource blocks for PUCCH are always allocated at the edges of the LTE spectrum If an even number of PUCCH resource blocks is specified half of the available number of PUCCH resource blocks are allocated on the lower and upper edge of the LTE spec trum outermost resource blocks In case an odd number of PUCCH resource blocks is specified 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 spe
89. e EI RER TIR E DISPlay WINDOWSN gt R E RIEGERT ERT DISPlay WINDow lt n gt TRACe lt t gt Y SCALe RLEVel OFFSet DISPlay WINDow TRACe Y SCALE AUTO eeeececeseeeereeeeeeeeseeceeeeeeeeaeeeseseeeseeecaeeeeesaeesrseaeeeresineeeeeeeeateeas DISPlay WINDow TRACe Y SCALe FIXScale OFFSet cece cee ceeeeeeeceeceeeeeeeseaeeeeeeseaeessaeesseesseeeeeaees DISPlay WINDow TRACe Y SCALe FIXScale PERDIV ccecceecceesereeereeeeeeeeeeeeeseneeeeeaeeereseeeeenneeateess Iueesdeli pd E 85 PEITENG cede 85 FETON PEC el EI 85 FETCh SUMMary CRESI AVERage 121r te tetti ce ee rare decide aas ir eg DRE REACH eva eR gerad 85 FETCh SUMMarv EVM PCHannel MANimum nen eene rennen ennt nre trennen 86 FE TCh SUMMarv EVM PC Hanne MiNimum eene rennen trennen etre r trente 86 FETCh SUMMary EVM PCHannel AVERage sese nre 86 FETCh SUMMary EVM PSIGnal MAXimum essent nennen nnne nnnee teret nrsennrse nr tnnr inns 86 FETCh SUMMary EVM PSIGnal MINimum essen en ennemi 86 FETCh SUMMary EVM PSIGnal AVERage essen nennen ree nennnn senes 86 FETCh SUMMary EVM SDQP AVERage sess nnennree nene neretnre nere eterni sens 87 FE TCh SUMMarv EVM GDGTTAVERagef nennen nnne enter eter se nr sete enses 87 FETCh SUMMary EVM UCCD AVERage essesseseeesee eene nennen nnne nne nne nnne nne trennen nennen nenne nnne 87 FETCh SUMMary EVM UCCH AVERage
90. e 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 UL Demod UL Frame Config IUBET E K Demodulation Reference Signal Sequence 3GPP Rel Power PUSCH 0 dB Rel Power PUCCH 0 dB Group Hopping C Sequence Hopping E Delta Sequence Shift 0 n_DMRS 0 Enable n_PRS ele 60 Relative Power PUSCH ME 60 Relative Power PUGCGH EE 60 Erot imle e ee ME 61 eer ee al a e DT 61 Delta Sequence SHIN EE 61 nob DMRS eege ei eden ih edere A ded d aded deas 61 Enable PTS ditte is ed edd Eed 61 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 Sets the power offset of the Demodulation Reference Signal DRS relative to the power level of the PUSCH allocation of the corresponding subframe The selected DRS power offset PDRS Offset applies for all subframes Depending on the allocation of the sub frame the effective power level of the DRS is
91. e may not exceed the specifi cation of the electronic attenuator for it to work Electronic attenuation is available in 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 RETE RU Em SSSR User Manual 1173 1210 12 04 44 R amp S FSQ K10x LTE Uplink Configuring and Performing the Measurement DEET General Settings The process of configuring the electronic attenuator consists of three steps e Selecting the mode You can select either manual or automatic control of the electronic attenuator e Selecting the state Turns the electronic attenuator on and off e Setting the attenuation level Sets the degree of electronic attenuation If you have selected automatic attenuation the R amp S FSQ automatically calculates the electronic attenuation State and degree of attenuation are not available in that case If you turn the electronic attenuator off the degree of attenuation is not available SCPI 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 104 Electronic attenuation INPut n EATT STATe on page 105 INPut n EATT AUTO on page 105 IN
92. e 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 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 9 2 5 2 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 EE User Manual 1173 1210 12 04 78 R amp S FSQ K10x LTE Uplink Remote Commands Introduction 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 9 2 5 3 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 9 2 1 Long and Short Form on page 76 Querying text parameters When you query text parameters the system returns its short form Example Setting SENSe BANDwidth RESolution TYPE NORMal Query SENSe BANDwidth RESolution TYPE would return NORM 9
93. e 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 Nip 3 Nip Nip N cell identity group 0 167 NI 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 FSQ automatically updates the other two The Cell ID determines EE User Manual 1173 1210 12 04 57 6 6 3 Configuring Uplink Frames the reference signal grouping hopping pattern the reference signal sequence hopping the PUSCH demodulation reference signal pseudo random sequence 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 SCPI command Cell ID CONFigure LTE UL PLC CID on page 116 Cell Identity Group CONFigure LTE UL PLC CIDGroup on page 116 Identity CONFigure LTE UL PLC PLID On page 116 Configuring Subframes The application allows you to configure individual subframes If you turn Auto Demodulation on the appplication automatically determines the sub frame configuration In the default state automatic configuration is on UL Frame Config eo An LTE frame contains 10 subframes The R amp S FSQ shows the contents fo
94. ects SEM category B 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 9 4 Remote Commands to Perform Measurements INi Tate CONTIBIOLUS 2e tein iaaii a Ea a E EE aia E iaaii aed 82 lepus EE 83 INCTISES TEE 83 IGENSel SNCTSTATelt tette tenete entre tenete ettet te ttes osa 83 INITiate CONTinuous State This command controls the sweep mode EE User Manual 1173 1210 12 04 82 R amp S FSQ K10x LTE Uplink Remote Commands Remote Commands to Perform Measurements Parameters lt State gt 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 Example INIT Initiates a new measurement Usage Event INITiate REFResh
95. 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 uplink 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 9 e Long Term Evolution Uplink Transmission Gcheme AAA 11 ib Ee 15 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 1210 12 04 9 R amp S FSQ K10x LTE Uplink Introduction 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
96. en by Emissions absolute RB Emissions iy Ars 1 c 12 Npg l e Nee gt MON Ely e 4 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 1210 12 04 23 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 FSQ K10x LTE Uplink Measurements and Result Displays Numerical Results 9 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 50 e DEI 25 e Measuring the
97. ence signals are based on CAZAC Constant Amplitude Zero Auto Cor relation sequences 2 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 2 3 TTH ss DATA TRA O Scheduled Data B Non Synchronized Random Access Channel Tra T Ra REP Fig 2 3 Random Access Structure principle User Manual 1173 1210 12 04 13 R amp S FSQ K10x LTE Uplink Introduction 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 2 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
98. er Manual 1173 1210 12 04 94 R amp S FSQ K10x LTE Uplink Remote Commands Remote Commands to Read Trace Data 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 9 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 9 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 Returns the minimum group delay found over all subframes If you are analyzing a
99. er frequency SENSe FREQuency CENTer on page 103 Channel Bandwidth Number of Resource Blocks Specifies the channel bandwidth and the number of resource blocks RB The channel bandwidth and number of resource blocks RB are interdependent If you enter one the R amp S FSQ automatically calculates and adjusts the other Currently the LTE standard recommends six bandwidths see table below If you enter a value different to those recommended by the standard the R amp S FSQ labels the parameter as User but still does the calculations The R amp S FSQ also calculates the FFT size and sampling rate from the channel band width Those are read only EE User Manual 1173 1210 12 04 42 6 2 2 General Settings Number of Resource Blacks Sample Rate MHz SCPI command CONFigure LTE UL BWon page 103 CONFigure LTE UL NORB on page 103 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 Auto The application automatically detects the cyclic prefix mode in use SCPI command CONFig
100. ere investigated While OFDMA is seen optimum to fulfil the L TE 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 reasons 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 2 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
101. ers lt Type gt 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 LTE UL TRACking TIME State This command turns timing tracking for uplink signals on and off Parameters lt State gt ON OFF RST OFF Example UL TRAC TIME ON Activates timing tracking 9 7 4 Configuring Uplink Frames 9 7 4 1 Configuring TDD Signals CONFIG ELTELVE TDD SPSC iiaeia are n eR tete uera axe ce ordo Paterno ds dad scence tates ad 115 CONFiqure PETE UL ue e Se Le ET 115 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 eer User Manual 1173 1210 12 04 115 R amp S FSQ K10x LTE Uplink Remote Commands Remote Commands to Configure the Application Example CONF UL TDD UDC 4 Selects allocation configuration number 4 9 7 4 2 Configuring the Physical Layer Cell Identity CON Figure PETE NEIE Be CID TEE 116 CONFigure sl TEEULIPECIIDGEOUD ct ances ee ee eed inl eed 116 CON Figure FE TERUL PEC RU Dic ia oia
102. ettings UE ID n_RNTI W UE Bi Maij M 67 UE ID n RNTI Sets the radio network temporary identifier RNTI of the UE SCPI command CONFigure LTE UL UEID on page 126 LEE User Manual 1173 1210 12 04 67 R amp S FSQ K10x LTE Uplink Analyzing Measurement Results Selecting a Particular Signal Aspect 7 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 sss 68 e Defining Measurement Units ceceeeiiecceee cries ree eterne enne nnne 69 e Defining Various Measurement Parameiers 69 e Selecting the Contents of a Constellation Diagram 70 Scaling the RI 70 e Using thie EN TEE 71 7 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
103. eturns 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 9 6 1 10 EVM vs Carrier For the EVM vs Carrier result display 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 e TRACE2 Returns the minimum EVM found over all subframes If you are analyzing a particular subframe it returns nothing e TRACE3 User Manual 1173 1210 12 04 96 R amp S FSQ K10x LTE Uplink Remote Commands Remote Commands to Read Trace Data Returns the maximum EVM found over all subframes If you are analyzing a particular subframe it returns nothing 9 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 9 6 1 12 EVM vs Subframe For the EVM vs Subframe result display the command returns one value for each
104. figuration parameters in an overview table Fig 2 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 Shared Channel PUSCH that is determined by the transmission bandwidth NTx and the frequency hopping pattern kO User Manual 1173 1210 12 04 12 R amp S FSQ 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 2 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 refer
105. frame 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 BitStream The actual bit stream SCPI command CALCulate lt n gt FEED STAT BSTR TRACe DATA EE User Manual 1173 1210 12 04 39 R amp S FSQ K10x LTE Uplink Configuring and Performing the Measurement Ech Performing Measurements 6 Configuring and Performing the Measure ment Before you can start a measurement you have to configure the R amp S FSQ 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 green 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 green 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
106. g Term Evolution Uplink Transmission Scheme eese 11 SG FDMA wea 11 SC FDMA Parameterization eee 12 Uplink Data Transmiseion nnne nennen res 12 Uplink Reference Signal Gtruchure cece eeeeceeeeeeeeeeeneeeeeeeeeaeeeeeseeesaeeeeeenenaas 13 Uplink Physical Layer Procecdures eee nnns 13 e ET 15 VT 16 Installing the Softwaroe 5 uertit tcn tenent E REENEN 16 ee leie ET E 16 SUPPONE E 18 Measurement BASICS cis secitaccies cccsncs ence sncsenses secant an exe x DER ER EIER UD LE 19 Symbols and Variables ccccccscsccteceeceeecetiteceneeesteeecesnsctleveceneestlaecssneestivecsreesttoeceersestiee 19 ud Y 20 The LTE Uplink Analysis Measurement Application 20 SYMCMMOMIZATION MEER 21 ULL n 22 Measurements and Result Displays eeeeeeeee 25 VERT 25 Measuring the Power Over Titme cseeeeeeeeeeeeeeeeeeeeeeeeeeeeseeeeeseeeeseeseneeeseeeeeeesseenensees 27 Measuring the Error Vector Magnitude EVM een 28 Measuring the Spectrumm csceccccccesseeeeeeeeeeeseeeeeseeesesseeeeseeesesseeneeseeesesseeeeeeeeeeeeeenenes 30 Frequency Sweep Measurementts c cceeceeeeeeeeeeeeeeeeeeeeceeeeeaeeaeeaaeeaaeeaaaseaaeaaaees 31 VO BEE 34 Measuring the Symbol Constellation
107. g and Performing the Measurement DEET General Settings The choices you have depend on the configuration of the R amp S FSQ 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 SCPI command CONFigure LTE LDIRection on page 102 CONFigure LTE DUPLexing on page 102 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 SCPI command Cent
108. ge 43 For more information on signal attenuation see Attenuating the Signal on page 44 selecting the ee EEN 50 WG Ra 50 bulle hy Rn Eu 51 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 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 The analog baseband input is available with option R amp S FSQ B71 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 FSQ B17 For more information on using hardware options R amp S FSQ B17 and B71 see the manual of the R amp S FSQ SCPI command INPut SELect on page 110 Yig Filter Configures the YIG filter If you want to measure broadband signals you can configure the YIG filter for a greater bandwidth The process of configuring the YIG filter consist of two steps R amp S FSQ K10x LTE Uplink Configuring and Performing the Measurement Ich Advanced General Settings e Selecting the mode You can select either manual or automatic control of the YIG filter e Selecti
109. ing Turns gating for SEM and ACLR 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 SCPI command SENSe SWEep EGATe AUTO on page 82 6 4 Advanced General Settings The Advanced settings contain parameters to configure more complex measurement setups 6 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 IST Trigger Spectrum 1Q Settings Swap IQ m c sae S 49 Swap UO Swaps the real I branch and the imaginary Q branch parts of the signal SCPI command SENSe SWAPiq on page 109 User Manual 1173 1210 12 04 49 6 4 2 Advanced General Settings 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 For more information on reference level see Defining a Reference Level on pa
110. ing 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 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 UL Frame Config 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 U uplink D downlink 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 R amp S FSQ K10x LTE Uplink Configuring and Performing the Measurement ee SS SS SS SSS ea Configuring Uplink Frames e GP The guard period
111. ing information e Freq The analyzer RF frequency e Mode Link direction duplexing cyclic prefix and maximum number of physical resource 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 83 e Ext Att Shows the external attenuation in dB e Capture Time Shows the capture length in ms 3 3 Support 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 FSQ stores the information in a number of files that are located in the R amp S FSQ directory C R_S Instr user LTE Support If you contact Rohde amp Schwarz to get help on a certain problem send these files to the support in order to identify and solve the problem faster User Manual 1173 1210 12 04 18 R amp S FSQ K10x LTE Uplink Measurement Basics Symbols and Variables 4 Measurement Basics This chapter provides background information on the measurements and result displays available with the LTE Analysis Software e Symbols and Vatiables ccc eese there unen teneret 19 CUI DELETE 20 e The L
112. irte thier ri enne nete earn nne ea et eee ree a 64 PUSCH Hopping ONSE itera ee e enr MR regu te ne ge Red ent 65 fleegen TEE 65 Into in Hopping BIS eere ch coves ee denen cade ten na de aea eoe eren ee de eee dn 65 Frequency Hopping Mode Frequency Hopping Mode specifies the hopping mode which is applied to the PUSCH Available choices are NONE Inter Subframe and Intra Subframe SCPI command CONFigure LTE UL PUSCh FHMode on page 123 User Manual 1173 1210 12 04 64 R amp S FSQ K10x LTE Uplink Configuring and Performing the Measurement Eh Defining Advanced Signal Characteristics PUSCH Hopping Offset Sets 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 used SCPI command CONFigure LTE UL PUSCh FHOFfset on page 123 Number of Subbands Number of Subbands specifies the number of subbands for PUSCH This parameter can be found in 3GPP TS36 211 V8 5 0 5 5 3 2 Mapping to physical resources SCPI command CONFigure LTE UL PUSCh NOSM on page 123 Info in Hopping Bits Sets the information in hopping bits according to the PDCCH DCI format 0 hopping bit definition This information 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 us
113. l 1173 1210 12 04 63 R amp S FSQ K10x LTE Uplink Configuring and Performing the Measurement Deet Defining Advanced Signal Characteristics Since 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 users to transmit simultaneously their sounding reference signal SCPI command CONFigure LTE UL SRS CYCS on page 121 Conf Index SRS Sets the UE specific parameter SRS configuration index Los Depending on the selected Duplexing Mode this parameter determines the parameters SRS Periodicity Tsrs and SRS Subframe Offset Tei as defined in the 3GPP TS 36 213 Table 8 2 1 FDD and 8 2 2 TDD respectively SCPI command CONFigure LTE UL SRS ISRS on page 121 Hopping BW b hop Sets the UE specific parameter frequency hopping bandwidth D as defined in the 3GPP TS 36 211 chapter 5 5 3 2 SRS frequency hopping is enabled if byop lt Bsps SCPI command CONFigure LTE UL SRS BHOP on page 120 6 7 3 Defining the PUSCH Structure The PUSCH structure settings contain settings that describe the physical attributes and structure 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 PUSCH Structure Frequency Hopping Mode Off PUSCH Hopping Offset 4 Number of Subbands 4 Info in Hopping Bits 0 Frequency HopplhgMOGOG
114. m for RF input A Capture Memory dBm Ref 20 dBm Att 0 00 0 00 dB cw 2 0 msidiv Fig 5 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 marks the subframe start Additionally the diagram includes the Subframe Start Offset value blue text This value is the time difference between the subframe start and capture buffer start LE User Manual 1173 1210 12 04 27 R amp S FSQ 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 5 2 Capture buffer after a zoom has been applied SCPI command CALCulate lt n gt FEED PVT CBUF TRACe DATA 5 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 4 Measurement Basics
115. 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 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 SCPI command Subframe CONFigure LTE UL TDD UDConf on page 115 Special Subframe CONFigure LTE UL TDD SPSC on page 115 6 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 Settings dialog box UL Demod FUN EATI UL Adv Sig Config Physical Layer Cell Identity Auto Cell ID Cell Identity Group Identity ooox Configuring the Physical Layer Cell Identity 0 c cccceesssereceeeeeecneeereeeeeneeseeneentteee 57 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 Th
116. meric value that defines the marker position on the x axis Default unit The unit depends on the result display SS User Manual 1173 1210 12 04 128 R amp S FSQ K10x LTE Uplink Remote Commands a a ee 9 8 3 Analyzing Measurement Results 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 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 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 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 SCAL FIXS PERD 10 DISPlay WINDow TRACev
117. mmands to Read Trace Data FETCh SUMMary TFRame This command queries the trigger to frame result for downlink signals and the trigger to subframe result for uplink signals Return values TrigToFrame numeric value Default unit s Example FETC SUMM TFR Returns the trigger to frame value Usage Query only 9 6 Remote Commands to Read Trace Data e Using the TRACe DATA Commande 91 e Remote Commands to Read Measurement Results 100 9 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 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 TRAC DATA TRACE1 The format of the return values is either in ASCII or binary characters and depends on the format
118. mum FETCh SUMMary FERRor MINimum FETCh SUMMary FERRor AVERage This command queries the frequency error Return values lt FreqError 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 SSE a N User Manual 1173 1210 12 04 88 R amp S FSQ K10x LTE Uplink Remote Commands Remote Commands to Read Numeric Results Usage Query only FETCh SUMMary GIMBalance MAXimum FETCh SUMMary GIMBalance MINimum FETCh SUMMary GIMBalance AVERage This command queries the I Q 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 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 POWer MINimum FETCh
119. n estimation Aint line H Window Window Bid E ompensation af Foon oametimng 4 Ke Dotachon amp fractional CFO estimation hoarse H bcarrier Ful 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 any 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 4 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 offset 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 carrie
120. n 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 SCPI command Automatic scaling DISPlay WINDow TRACe Y SCALe AUTO on page 130 Manual scaling DISPlay WINDow TRACe Y SCALe FIXScale OFFSet on page 130 DISPlay WINDow TRACe Y SCALe FIXScale PERDiv on page 130 7 6 Using the Marker The firmware application provides a marker to work with You can use a marker to mark specific points on traces or to read out measurement results B EVM vs Carrier 1 54 MHzidiv Fig 7 3 Example Marker The MKR key opens the corresponding submenu You can activate the marker with the Marker 1 softkey After pressing the Marker 1 softkey you can set the position of the marker in the marker dialog box by entering a frequency value You can also shift the User Manual 1173 1210 12 04 71 R amp S FSQ K10x LTE Uplink Analyzing Measurement Results Using the Marker marker position by turning the rotary knob The current marker frequency and the corre sponding level is displayed in the upper right corner of the trace display The Marker 1 softkey has three possible states If the Marker 1 softkey is grey the marker is off After pressing the Marker 1 softkey it turns red to indicate an open dialog box and the the marker is active The dialog box to specify the marker position on the frequency axis open
121. nds FETCh SUMMarv OSTPMiNimum nennen enne nnnm rretnr nter erret etre EEEE net 89 FETCh iSUMMary POWer MAXImUlTi icai trt tede re didt dete de eile edd 89 FETCh SUMMary POWer MINimum esses nennen nennen nennen rne t nennen enne t nnne enne nnne 89 FETCHh SUMMary POWer AVERage rere eot ge ei e dte ur pea e n odes 89 FETCh SUMMary QUADerror MAXimum sees neree nennt nrsennrs etre nnns senes en nes etnies 90 FE TCh SUMMarv OUlADerror MiNimum ener nemen nrnnnnerenrrse nnns eere e nnne s nnns 90 FETCh SUMMary QUADerror AVERage FETChH SUMMary RSTP MAXIMUM ere ceteris bales asl ito gg oaa Deed ge a saga tg a pete epu ances 90 FETCh SUMMarv RGSTbP MiNimum Entut EntANEAEENEANENANEAENEANEAEENENEEAENAEE EEEn En EEEE 90 FETCh SUMMarv SGERRorMANImum nennen ennemi trennen erinnere nene etre nnne 90 FETChiSUMMary SERROEMINITUETI 2 2 iere rasa t ep e ican 90 FEICh SUMMary SERRoOr AVERAage 2 iet ierit ea eiia dba erdt aoa edd 90 FETCh SUMMaiy TERatrIG i mee net teet e ed D eg V EA Oe e E p Yee DR Pn 91 FORMat DATA em 131 INI Miate CONTINUOUS EE 82 INITiate REFResh INITiate IMMediate tace ctn are rtt pee e t fer el rt gp e ee ele cpi groer 83 INPuCIOBAL ancedf STATel nennen nenne nene nns tree nne ten innen retten e tee trt nnn enne 111 INPut 1Q MPeda tE Ua ER iEiEA 111 INPUBIQSIYPE E 112 I
122. ng the state Turns the YIG filter on and off If inactive you can use the maximum bandwidth However image frequency rejection is no longer ensured If you have selected automatic YIG filter control the R amp S FSQ automatically resolves whether to use the YIG filter or not Manual selection of the YIG filter state is not available in that case Note that the R amp S FSQ uses the YIG filter only for frequencies greater than 3 6 GHz If the frequency is smaller these settings have no effect SCPI command INPut lt n gt FILTer YIG STATe on page 110 INPut n FILTer YIG AUTO on page 110 High Dynamic Turns the bypass of the bandwidth extension R amp S FSQ B72 on and off if you are using a wideband filter The signal instead passes through the normal signal path If active high dynamic results in a higher resolution because the normal signal path uses a 14 bit ADC However all signals to the left or right of the spectrum of interest are folded into the spectrum itself The high dynamic functionality is available only if R amp S FSQ B72 is installed and the sample rate is in the range from 20 4 MHz to 40 8 MHz SCPI command TRACe IQ FILTer FLATness on page 111 6 4 5 Configuring the Baseband Input The baseband settings contain settings that configure the baseband input The baseband settings are part of the Advanced Settings tab of the General Set tings dialog box General MIMO FETUTTT Trigger Spectrum Baseband
123. ngs This chapter contains remote control commands necessary to control the general mea surement settings For more information see chapter 6 2 General Settings on page 41 Defining Signal Characteristics Gihaut TE DUPLexing Lucerne eene hio Rete ek nne RR ii tnu KM Ra kaiaia 102 CON Figure ETEFEDIRSGOR ET 102 CON Le HE E UL BW mu 103 CONFiguire it TEEULE IO YEUX aeree cete eere ce nne enden nue bicaiecseenendadesctaierausnaeees 103 GEI LEIBIG GER Aessen ele AE 103 SENSe PREQuency CENTO agoe ENER EES ater EENEG 103 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 User Manual 1173 1210 12 04 102 R amp S FSQ K10x LTE Uplink Remote Commands Remote Commands to Configure the Application 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
124. ning 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 ERREUR RA E MTN User Manual 1173 1210 12 04 69 R amp S FSQ K10x LTE Uplink Analyzing Measurement Results El Selecting the Contents of a Constellation Diagram B Bit Stream Modulation 3 o mre Ion Poy 3 00 0 O B Bit Stream Modulation Bit Index 001011001111000111110111010000011010110110111011 000001011010111110101010100000010100101011110010 96 111011100000011100111010010011110101110101000100 144 100001100111000010111101101100110100001110111100 192 001111111110000011110111110001011100110010000010 Joon vn SW Bei Fig 7 2 Bit stream display in uplink application if the bit stream format is set to bits SCPI command UNIT BSTR on page 127 7 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 Constellation Selection Filters the displayed results You can filter the results by a
125. 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 9 7 5 5 Defining Global Signal Characteristics CON Figure FE TE UWE TE 126 CONFigure L TE UL UEID ID Sets the radio network temporary identifier RNTI of the UE Parameters ID numeric value RST 0 Example CONF UL UEID 2 Sets the UE ID to 2 9 8 Analyzing Measurement Results 9 8 1 General Commands for Result Analysis SENS amp EETE SUBFrame SEL 6cl 2 ient reete EENS 126 UNIT BST eie mrt m edo send des E Ee ee dee 127 UNI EYN E 127 SENSe LTE SUBFrame SELect lt Subframe gt This command selects the subframe to be analyzed E User Manual 1173 1210 12 04 126 R amp S FSQ K10x LTE Uplink Remote Commands Analyzing Measurement Results 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 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 UNIT EVM Unit This command selects the EVM unit Parameters Unit DB EVM results returned in dB PCT EVM results returned in 96 R
126. ny combination of modulation allocation ID symbol carrier or location The results are updated as soon as any change to the constellation selection parameters is made Note that the constellation selection is applied to all windows in split screen mode if the windows contain constellation diagrams You can filter the results by the following parameters e Modulation Filter by modulation scheme e Symbol Filter by OFDM symbol e Carrier Filter by subcarrier 7 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 User Manual 1173 1210 12 04 70 R amp S FSQ K10x LTE Uplink Analyzing Measurement Results Using the Marker Selection Units Misc Y Axis Screen A Capture Memory Auto Scaling E Fixed Scaling Per Division 10 Offset 163 dBm 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 tur
127. on 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 codeword 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 9 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 EEUU RU m I e LLLLLLLLLLLLLLLLLLLLLLLLLLLLUL UU User Manual 1173 1210 12 04 75 R amp S FSQ K10x LTE Uplink Remote Commands 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 p
128. 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 nine 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 dBm gt lt relative power in dBc gt lt limit distance in dB gt lt limit check result gt The lt limit check result gt is either a 0 for PASS or a 1 for FAIL 9 6 1 17 Return Value Codes This chapter contains a list for encoded return values 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 User Manual 1173 1210 12 04 98 R amp S FSQ K10x LTE Uplink Remote Commands Remote Commands to Read Trace Data 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 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
129. or the code assignment see chapter 9 6 1 17 Return Value Codes on page 98 Note that the data format of the return values is always ASCII R amp S FSQ K10x LTE Uplink Remote Commands Remote Commands to Read Trace Data Example Allocation Summary Sub Offset Power frame is RB Modulation EVM 2 0 002 0 002 80 940 0 003 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 6 80 9404231343884 3 97834623871343E 06 9 6 1 3 Bit Stream For the Bit Stream result display the command returns five values and the bitstream for each line of the table subframe modulation 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 9 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 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 EE User Manual 117
130. ource AIQ Selects the analog baseband input as the data source This source is available only with option R amp S FSQ B71 DIQ Selects the digital baseband input as the data source This source is available only with option R amp S FSQ B17 Example INP DIQ Selects the digital baseband input INPut lt n gt FILTer YIG AUTO State This command turns automatic control of the YIG filter on and off Parameters lt State gt ON OFF RST ON Example INP FILT YIG AUTO ON Activates automatic control of the YIG filter INPut lt n gt FILTer YIG STATe State This command removes or adds the YIG filter from the signal path If you remove the filter you can use the maximum bandwidth but image frequency rejec tion is no longer ensured Parameters lt State gt ON OFF RST ON SS ST User Manual 1173 1210 12 04 110 R amp S FSQ K10x LTE Uplink Remote Commands Remote Commands to Configure the Application Example INP FILT YIG OFF Removes the YIG filter from the signal path TRACe IQ FILTer FLATness lt FilterT ype 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 IQ FILT FLAT WIDE Turns the wideband filter on 9 7 2 3 Configuring the Baseband Input INPuttIO BALancelE STAT ssec chart trennen tert er eor ra tento 111 INPubIO ME 111 ler Te ag de LEE 112 G
131. owband SRS cover the same total bandwidth There are up to four SRS bandwidths defined in the standard The most narrow SRS bandwidth Bsrs 3 spans four resource blocks and is available for all channel band widths the other three values of the parameter Bass define more wideband SRS band widths available depending on the channel bandwidth The SRS transmission bandwidth is determined additionally by the SRS Bandwidth Con figuration Cans SCPI command CONFigure LTE UL SRS BSRS on page 121 Freq Domain Pos n RRC Sets the UE specific parameter Freq Domain Position Ngre as defined in the 3GPP TS 36 211 chapter 5 5 3 2 This parameter determines the starting physical resource block of the SRS transmission SCPI command CONFigure LTE UL SRS NRRC on page 121 SRS BW Conf C SRS Sets the cell specific parameter SRS Bandwidth Configuration Cgps The SRS Bandwidth Configuration Cass the SRS Bandwidth Bags and the UL Channel Bandwidth determine the length of the sounding reference signal sequence calculated according to 3GPP TS 36 211 SCPI command CONFigure LTE UL SRS CSRS on page 121 Transm Comb k TC Sets the UE specific parameter transmission comb Ko as defined in the 3GPP TS 36 211 chapter 5 5 3 2 SCPI command CONFigure LTE UL SRS TRComb on page 122 SRS Cyclic Shift N_CS Sets the cyclic shift n_CS used for the generation of the sounding reference signal CAZAC sequence EE User Manua
132. ping Configuring the Sounding Reference Signal CONFiqure PETE UL SRS BHOP EE 120 GONFigure t TEEULESSRSIBSRS 2 Ier EELER EELER EE 121 EE Le DE NEIE e 121 eer Te UE ERR EI YC E 121 CONFgure PETE NEIE TE 121 GONFigure E TEEULSRSINRRCO ecretr E oro reb mei eee ED tete e erba uuo ade 121 GONFigure ETEEUE SRS POWeLE 1 crie reae denen ne nt Feet Rene epp ep as 122 Elei Lee Hr e NEIE ME EE 122 CONFig re L TEEUL SRS SUGCON IQ 2 2 reete ree ett ence wees ea e ta oen ege 122 CONFIgurebETEEULESRS TROOIID anie enar aeree odere Cn ood e eene nennen nt epa z axe cem gan 122 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 User Manual 1173 1210 12 04 120 R amp S FSQ K10x LTE Uplink Remote Commands Remote Commands to Configure the Application 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 Example CONF UL SRS CSRS 2 Sets the SRS bandwidth configuration to 2 CONFigure
133. r STATe cessere en nnns 106 SENSe POWer AUTO analyzer TIME sssssssssssssesee senes trennt ern h nnne nnns 106 CONFigure POWer EXPected IQ analyzer lt RefLevel gt This command defines the reference level when the input source 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 User Manual 1173 1210 12 04 104 R amp S FSQ K10x LTE Uplink Remote Commands Remote Commands to Configure the Application 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 IN
134. r each sub frame in the configuration table In the configuration table each row corresponds to one subframe You can also define a frame number offset that the software uses to demodulate the captured frame ex ho p pe CE bx h b pe es e pe pex hb pe Before you start to work on the contents of each subframe you should define the number of subframes you want to customize with the Configurable Subframes parameter The application supports the configuration of up to 10 subframes Ej E a a a a L a L Gongurifig SUT AIMS Se eee re eI Ee ees odo a resa tek Rash bcd de era ku d Dn ue 59 R amp S FSQ K10x LTE Uplink Configuring and Performing the Measurement See SS SS SS SSS L Defining Advanced Signal Characteristics Configuring Subframes According to the number of configurable subframes you have set the R amp S FSQ adjusts the size of the subframe configuration table Each row in the table corresponds to one allocation if the subframe is a cluster Else the row is a subframe The configuration table contains the settings to configure the subframes e Subframe Shows the number of a subframe Note that depending on the configuration some subframes may not be available for editing The R amp S FSQ labels those downlink subframes not used The corre sponding cells in the table are greyed out e Enable PUCCH Turns the PUCCH in the corresponding subframe on and off If you turn on a PUCCH
135. r 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 1210 12 04 21 R amp S FSQ K10x LTE Uplink Measurement Basics The LTE Uplink Analysis Measurement Application jc j2z Ns Ngpep G kd j2z Ng N pp NT Ra Ag Hunn e 1 el TNs Ngey s el TN N rrr An N A9 CPE SFO res CFO 4 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 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
136. r rnt ttn nnne enn inen Phan tana ea baa SENSe POWer AUTO analyzer STATe sess eene rennen trennen enne 106 Jai iBaejsleelsm E 81 SENSeEPOWetSEM GAToegoly 1r eret petierat be see cep a bec arada kaadaa handaan dedu de ges dee uda 82 SENSES WAP IG 2 ETE 109 SSES User Manual 1173 1210 12 04 134 SENS SwWEenEGATe AUTO 82 SENSe SWEep TIM EE 107 SENSE SYNC STATE sr tie E Y 83 SENSe ETEEFERAMS COUNL cece iseeaean as ed tente c e et dne o Dd d oaa Vd a PU D 106 IGENGelt LTEIERAMeCOUN AUTO 107 SENSe LTE FFRAMe COUNESTAT EE 107 SENSe ETEESUBFrame SELEOGL iieri ctt eed eccrine ata be pae ea EE AEN 126 EIST NEIER IS ee RE e EE 113 SENSe L TET UL DEMod CBSCrambling eese emeret nnne 113 SENSe LTE UL DEMod CDCoffset SENSe LTE UL DEMod CESTimation SENSe L TEUL RS OI dE ISENSe ETEEFUL TRAGCKing PHASe ridet tn aves c ee p de Rp YR ERE ane ee SENSe LTE UL TRACKING TIME R amp S FSQ K10x LTE Uplink Index A High Dynamic 22 4 adeeni cereis 51 ACER uut T uU EA EE l Allocation summary a Auto Demodulation cccececcsescsesesessesesesessssstsessesesseetees Identity Physical Layer sss 57 Auto Detection Cell Identity sss 57 Inband emission B es 3
137. rame depends on your selection The x axis represents the frequency On the y axis the group delay is plotted in ns EE User Manual 1173 1210 12 04 35 R amp S FSQ K10x LTE Uplink Measurements and Result Displays Measuring the Symbol Constellation B Group Delay ns 1 54 MHz div SCPI 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 the 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 MHz div SCPI command CALCulate lt n gt FEED SPEC FDIF TRACe DATA 5 5 Measuring the Symbol Constellation This chapter contains information on all measurements that show the constellation of a signal Constellation TT WEE 37 EE User Manual 1173 1210 12 04 36 R amp S FSQ 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 The result display evaluates
138. rections Setting parameters lt Path gt String containing the path and name of the file Example MMEM LOAD DEM D USER Settingsfile allocation Usage Setting only SS M User Manual 1173 1210 12 04 131 R amp S FSQ K10x LTE Uplink List of Commands List of Commands CA iat i Tig ED oa eels ee ee e tice eee scene hes te senate ace vanes ede Pea tasecaliecaveu cai e a e an 80 CALOCulate n LIMit k2 ACPower ACHannel RESUIt essen eene 100 CAL Culate cnz LlMitckACbowerAl TematehRt Gut 100 GALCulate lt n gt MARKersm gt AQE Fi vna e aspe pee mtv rv OY D D ERE RE i EXE Erde e eege 128 CAlLCulate cnzMAbker mzFUNGCHonb Wer RE Gu CURentl 101 CALCulate lt n gt MARKer lt m gt TRACe eene en nennen nns seiner sene nnn sehr ness en rnns sen Ennn Ennen nnn 128 CAL Culatesn gt MARKERSIM gt Cm 128 CAL Culate nz MAR erem 129 CALCulate lt n gt MARKer lt m gt STATE cccccecceceeeseceeeceeeeseeenecaneeaeeeseceeesseeeaeeeaecaeesseseaeesaesnesaeeeaeeeaeeneeeateaas 128 CONFigure POWer EXPected IQ analyzer euren eret eat ne nit rh eria atta natans drinnen nean 104 CONFigure POWer EXPected RF onalhyzerz esses sees nene eee nena nnn tnnts shit nins nnn rnn sss n nnn rene 104 CONFigure PRES tu asics
139. ric values Optional keywords Parameters iacu e emer ES Strings D SUff XGS EE 76 Resource BlIoOCKS 7 narii REIS XR 42 Result Display Constellation Selection sessssssssssss 70 Result SUMMA iiie teer mter tercer aE 25 S Scrambling of coded bits sss 54 Screen Layout 1 2 rie re teet i E 16 Settings EE 57 Auto Demodulation S Balanced EE 52 Capt re Time ce ri reiten terere 45 Cell ID Sch Cell Identity Group sese Channel Bandwidth 1 0 0 0 ccc cceceeeeseseeeeeeeeeeeees Channel Estimation Range sch SS Compensate DC Offset ssssssssssssssss Conf Index I SRS ioci ee ca eiecit Configurable Subframes e Delta Onset EE Delta Sequence Shift A Delta Shift Digital Input Data Rate sss Di O Ext Att Format Frame Number Offset ssssssssssee Freq Domain Pos n RRC i WE x eer rr ret ee eerie eraut Frequency Hopping Mode Full Scale Level Group Hopping High Dynamic tei tette Pridie Hopping BW b hop i Identity E a AUREN ira AS Info in Hopping Bits esesseeeeeee Low Pass n_DRMS Dad MERE N PUCCH NCW CS ederet rcs leg TEE Number of RB Number of RBs for PUCCH s ssssesssssnssnnninnrrersennene 66 Number of SubbandS ssssssssnanenenenninnrnrnennnnnnnnnn na 65 Phase 1 E EE 62 PUSCH Hopping Offset
140. rview 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 4 3 The LTE Uplink Analysis Measurement Application The block diagram in figure 4 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 a 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 Accordingly 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 EE User Manual 1173 1210 12 04 20 R amp S FSQ K10x LTE Uplink Measurement Basics 4 3 1 The LTE Uplink Analysis Measurement Application Fypeteoarse oarse Integer CFO channel Fine timing estimation e
141. s Ss Marker equency After closing the dialog box the Marker 1 softkey turns green The marker stays active De Pressing the Marker 1 softkey again deactivates the marker You can also turn off the marker by pressing the Marker Off softkey 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 Marker Zoom Zoom Factor 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 gt Trace softkey in the marker to menu and specify the trace in the corresponding dialog box CALCulate lt n gt MARKer lt m gt STATe on page 128 CALCulate lt n gt MARKer lt m gt AOFF on page 128 CALCulate lt n gt MARKer lt m gt TRACe on page 128 CALCulate n MARKercm X on page 128 CALCulate lt n gt MARKer lt m gt Y on page 129 EE User Manual 1173 1210 12 04 72 R amp S FSQ K10x LTE Uplink File Management File Manager 8 File Management 8 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
142. s lt Power gt lt numeric value gt RST 0 Default unit DB Example CONF 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 or PUSCH to an uplink allocation Parameters lt Content gt NONE Turns off the PUSCH and the PUCCH PUCCh Turns on the PUCCH PUSCh Turns on the PUSCH PSCC Turns on the PUCCH as well as the PUSCH 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 SS ST User Manual 1173 1210 12 04 118 R amp S FSQ K10x LTE Uplink Remote Commands Remote Commands to Configure the Application 9 7 5 Defining Advanced Signal Characteristics 9 7 5 1 Configuring the Demodulation Reference Signal GONFIgure E TELE ULIDIRS DSSEIlL EEN 119 GCONFigure EL TEEULIDRS GRPHopplnhg 2 22 ei ouo rete AET rn EENS ENNER 119 CDNFISurerE TEEBESDRSINBNRS ticae teneor e EEN 119 Elei Lee Hr E EIER eier e 119 GONFigure LTE ULIDRS PUSChERPOWer 422 erecto r i deor ra 120 GONFPiSureEETEEUEDRS SEQHODDIFIB 1 Rasen EES Renee che repeat e init 120
143. s the current cell identity group 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 EE User Manual 1173 1210 12 04 85 R amp S FSQ K10x LTE Uplink Remote Commands Remote Commands to Read Numeric Results 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 Return values lt EVM gt lt numeric value gt Minimum maximum or average EVM depending on the
144. s 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 EE User Manual 1173 1210 12 04 34 R amp S FSQ K10x LTE Uplink Measurements and Result Displays Measuring the Spectrum A Rel Inband Emissions dB Selection Subframe 0 Slot 0 2 SCPI command CALCulate lt screenid gt FEED SPEC IE TRACe DATA 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 PK 1 54 MHz div SCPI 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 subf
145. se 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 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 RETE RU EE I e A LLLLLLLLLLLALL J User Manual 1173 1210 12 04 10 R amp S FSQ K10x LTE Uplink Introduction Long Term Evolution Uplink Transmission Scheme 2 2 Long Term Evolution Uplink Transmission Scheme 2 2 1 SC FDMA During the study item phase of LTE alternatives for the optimum uplink transmission scheme w
146. so see Auto Gating in the Spectrum tab of the General Set tings dialog box Conmniguring the rte EE 47 User Manual 1173 1210 12 04 46 R amp S FSQ K10x LTE Uplink Configuring and Performing the Measurement Deeg Configuring Spectrum Measurements 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 FSQ 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 FSQ 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 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 You can define a power level for an external and an IF power 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
147. sss 65 Re level asa etri tere seo e EE RR 43 Relative Power PUCCH eene Relative Power PUSCH sse Rel Power Scrambling of coded bits SEQUCNCE P Sequence Hopping em UE e SRS Bandwidth B SRS esse SRS BW Conf C SRS SI SRS Cyclic Shift N CS AA SRS Subframe Conte 63 Standard i41 suppressed interference synchronization 55 Swap VO rrt tree tree ker ipe 49 TDD UL DL Allocations ven 56 Ill et M 55 Transm Comb KIC 63 Trigger level es 47 Trigger ue TEE 47 Trigger offset e trm ete rn ete hieme tec 47 b o ge P ete 50 Softkey Const Selechon sssrini arsaa 70 Marker 1s E 71 Sounding Reference Signal Conf Index L SRS partisara iiaa a Freq Domain Pos n_RRC zs Hopping BW b hiop aiit cott rere rre Present ee Rel Power SRS Bandwidth B_SRS SRS BW Cont CSRS inuenies SRS Cyclic Shift N_CS SRS Subframe Conf sess 63 Transm Comb K TOC sse 63 Source Input So 50 Spectrum mask tite eret te ited 31 Standard Selection 5 conne 41 Status Bar es 17 Subframe Configuration Table ssssssss 58 Suffixes Remote commands sssssseee 76 Suppressed interference synchronization 55 iere
148. t Distance gt The unit depends on the result display you want to scale Example See chapter 9 8 Analyzing Measurement Results on page 126 9 9 Configuring the Software GON Figitine PRESO EE 131 BISPlayEWINBowWensP SEL amp CGL ii eror rer eod cec easiness atest A EEE Ra 131 FORMA DA WEE 131 MMEMon LOAD DE Modeetting eese eene nennen nennen tenete nnns 131 LEE User Manual 1173 1210 12 04 130 R amp S FSQ K10x LTE Uplink Remote Commands Configuring the Software 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 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 lt Path gt This command restores previously saved demodulation settings We 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 di
149. 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 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 Relea
150. 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 SCPI command Manual RF CONFigure POWer EXPected RF analyzer on page 104 Manual BB CONFigure POWer EXPected IQ analyzer on page 104 Automatic SENSe POWer AUTO lt analyzer gt STATe on page 106 Auto Level Track Time SENSe POWer AUTO analyzer TIME on page 106 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 the Advanced tab of the General Settings dialog box e If you have equipped your R amp S FSQ with option R amp S FSQ B25 it also provides electronic attenuation Note that the frequency rang
151. the scrambling EE User Manual 1173 1210 12 04 113 R amp S FSQ K10x LTE Uplink Remote Commands Remote Commands to Configure the Application 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 SENSe LTE UL DEMod CESTimation Type This command selects the channel estimation type for uplink signals Parameters Type 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 9 7 3 2 Compensating Measurement Errors SENSe L TE UL TRACking PHASe ect tette ttt tentent tetas 114 SENSe L TE UL TRACking TIME ccce ttt ttt tentent tette ttc 115 SENSe LTE UL TRACking PHASe Type This command selects the phase tracking type for uplink signals SS O VJ R User Manual 1173 1210 12 04 114 R amp S FSQ K10x LTE Uplink Remote Commands Remote Commands to Configure the Application Paramet
152. to be transmitted TRACe DATA Result This command returns the trace data for the current measurement or result display For more information see chapter 9 6 1 Using the TRACe DATA Command on page 91 Query parameters lt TraceNumber gt TRACE1 TRACE2 TRACE3 LIST Usage Query only EE User Manual 1173 1210 12 04 99 R amp S FSQ K10x LTE Uplink Remote Commands Remote Commands to Read Trace Data 9 6 2 Remote Commands to Read Measurement Results CALCulate n LIMit k ACPower ACHannel RESUIt eese 100 CALCulate n LIMit k ACPower ALTernate RESUIt eese 100 CALOCulate n MARKer m FUNCtion POWer RESuUlt CURRent esses 101 CALCulate lt n gt LIMit lt k gt ACPower ACHannel RESult Result This command queries the limit check results for the adjacent channels during ACLR measurements Query parameters Result 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 q
153. ueries the limit check results for the alternate 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 SSE a MN User Manual 1173 1210 12 04 100 R amp S FSQ K10x LTE Uplink Remote Commands Remote Commands to Read Trace Data 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 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 e lt TXChannelPower gt is the
154. ulation is not supported in this synchronization mode and the EVM may be higher in case only one UE is present in the signal SCPI command SENSe LTE UL DEMod SISYnc on page 114 6 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 UL Demod pars UL Frame Config UL Adv Sig Config Tracking 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 SCPI command SENSe LTE UL TRACking PHASe on page 114 Timing Specifies whether or not the measurement results should be compensated for timing error When timing compensation is used the measurement results will be compensated for timing error on a per symbol basis SCPI command SENSe LTE UL TRACking TIME on page 115 User Manual 1173 1210 12 04 55 6 6 6 6 1 Configuring Uplink Frames Configur
155. ure LTE UL CYCPrefix on page 103 Configuring the Input Level The level settings contain settings that control the input level of the analyzer The level settings are part of the General tab of the General Settings dialog box Defining a Reference Level 43 Attenualihio tbe e ET idet doe tenaci e doe etie Ee eed teta 44 Defining a Reference Level The reference level is the power level the R amp S FSQ expects at the 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 R amp S FSQ K10x LTE Uplink Configuring and Performing the Measurement DEET 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 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
156. works 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 data 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
157. 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 eee ean 92 Allocation Summa TEE 92 LEM Tu EE 93 e Capture ut EE 94 d Eeer dee Seet 94 User Manual 1173 1210 12 04 91 Remote Commands to Read Trace Data 9 6 1 1 9 6 1 2 Channel FlaMESS cus eege ee trn rne queen anten See ee Channel Flatness Keep ssnin a aaa MM n MPs Channel Group Delay cete etit cen Ha docere ska pee eR RR Cerdo ERA erue Rao YEA VEER Ee e BEE Ke d RC EE EVM vS ul TEE EVM e EE Frequency Error vs Symbol E creer nn hen R ERR NEE leiere ene ET e EE Spectrum Emission MasK deett nie He rete REX SH Nae Aa aa EEEE FROIN Ee 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 Allocation Summary Forthe Allocation Summary the command returns seven values for each line of the table lt subframe gt 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 F

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R&amp;S FSQ-K10x EUTRA/LTE UL Measurement

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R&S FSQ-K10x EUTRA/LTE UL Measurement