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R&S FSV-K10x (LTE Downlink) LTE Downlink Downlink Measurement Application User Manual ... concepts for UMTS long term evolution ... This introduction focuses on LTE/EUTRA technology

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  • R&SFSV-K10x (LTE Downlink)LTE Downlink MeasurementApplicationUser Manual

    User

    Man

    ual

    1176.7661.02 04.1(;2)

    Test

    & Me

    asur

    emen

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  • This manual describes the following firmware applications: R&SFSV-K100 EUTRA / LTE FDD Downlink Measurement Application (1308.9051.02) R&SFSV-K102 EUTRA / LTE MIMO Downlink Measurement Application (1310.9151.02) R&SFSV-K104 EUTRA / LTE TDD Downlink Measurement Application (1309.9774.02)

    The contents of this manual correspond to the following R&SFSVR models with firmware version 2.23 orhigher: R&SFSVR7 (1311.0006K7) R&SFSVR13 (1311.0006K13) R&SFSVR30 (1311.0006K30) R&SFSVR40 (1311.0006K40)

    The software contained in this product makes use of several valuable open source software packages. For information, see the"Open Source Acknowledgement" on the user documentation CD-ROM (included in delivery).Rohde & Schwarz would like to thank the open source community for their valuable contribution to embedded computing.

    2015 Rohde & Schwarz GmbH & Co. KGMhldorfstr. 15, 81671 Mnchen, GermanyPhone: +49 89 41 29 - 0Fax: +49 89 41 29 12 164Email: [email protected]: www.rohde-schwarz.comSubject to change Data without tolerance limits is not binding.R&S is a registered trademark of Rohde & Schwarz GmbH & Co. KG.Trade names are trademarks of the owners.

    The following abbreviations are used throughout this manual: R&SFSV is abbreviated as R&S FSV. R&SFSVR is abbreviated asR&S FSVR.

    mailto:[email protected]://www.rohde-schwarz.com

  • ContentsR&SFSV-K10x (LTE Downlink)

    3User Manual 1176.7661.02 04.1

    Contents1 Introduction............................................................................................ 7

    1.1 Requirements for UMTS Long-Term Evolution.......................................................... 7

    1.2 Long-Term Evolution Downlink Transmission Scheme............................................9

    1.2.1 OFDMA........................................................................................................................... 9

    1.2.2 OFDMA Parameterization............................................................................................. 10

    1.2.3 Downlink Data Transmission.........................................................................................12

    1.2.4 Downlink Reference Signal Structure and Cell Search.................................................12

    1.2.5 Downlink Physical Layer Procedures............................................................................14

    1.3 References...................................................................................................................14

    2 Welcome............................................................................................... 162.1 Installing the Software................................................................................................16

    2.2 Application Overview..................................................................................................16

    2.3 Support........................................................................................................................ 18

    3 Measurement Basics........................................................................... 193.1 Symbols and Variables...............................................................................................19

    3.2 Overview...................................................................................................................... 20

    3.3 The LTE Downlink Analysis Measurement Application.......................................... 20

    3.3.1 Synchronization.............................................................................................................20

    3.3.2 Channel Estimation and Equalizitaion...........................................................................22

    3.3.3 Analysis.........................................................................................................................22

    3.4 Performing Time Alignment Measurements.............................................................23

    3.5 Performing Transmit On/Off Power Measurements.................................................25

    4 Measurements and Result Displays...................................................274.1 Numerical Results.......................................................................................................27

    4.2 Measuring the Power Over Time............................................................................... 30

    4.3 Measuring the Error Vector Magnitude (EVM)..........................................................34

    4.4 Measuring the Spectrum............................................................................................ 37

    4.4.1 Frequency Sweep Measurements................................................................................ 38

    4.4.2 I/Q Measurements.........................................................................................................41

    4.5 Measuring the Symbol Constellation........................................................................ 45

  • ContentsR&SFSV-K10x (LTE Downlink)

    4User Manual 1176.7661.02 04.1

    4.6 Measuring Statistics................................................................................................... 45

    4.7 3GPP Test Scenarios.................................................................................................. 48

    5 Configuring and Performing the Measurement.................................505.1 Performing Measurements.........................................................................................50

    5.2 Defining General Measurement Characteristics...................................................... 51

    5.2.1 Defining Signal Characteristics..................................................................................... 52

    5.2.2 Configuring the Input Level........................................................................................... 53

    5.2.3 Configuring the Data Capture....................................................................................... 55

    5.2.4 Configuring On/Off Power Measurements.................................................................... 56

    5.2.5 Triggering Measurements............................................................................................. 57

    5.3 Configuring MIMO Setups.......................................................................................... 58

    5.4 Configuring Spectrum Measurements...................................................................... 59

    5.4.1 General ACLR and SEM Configuration.........................................................................59

    5.4.2 Configuring SEM Measurements.................................................................................. 60

    5.4.3 Configuring ACLR Measurements................................................................................ 61

    5.5 Defining Advanced Measurement Characteristics.................................................. 62

    5.5.1 Controlling I/Q Data.......................................................................................................62

    5.5.2 Controlling the Input...................................................................................................... 63

    5.5.3 Configuring the Digital I/Q Input.................................................................................... 64

    5.6 Configuring the Signal Demodulation.......................................................................64

    5.6.1 Configuring the Data Analysis.......................................................................................64

    5.6.2 Compensating Measurement Errors............................................................................. 67

    5.6.3 Configuring MIMO Setups.............................................................................................68

    5.7 Configuring Downlink Frames................................................................................... 69

    5.7.1 Configuring TDD Signals...............................................................................................69

    5.7.2 Configuring the Physical Layer Cell Identity..................................................................70

    5.7.3 Configuring PDSCH Subframes....................................................................................72

    5.8 Defining Advanced Signal Characteristics...............................................................74

    5.8.1 Defining the PDSCH Resource Block Symbol Offset....................................................75

    5.8.2 Configuring the Reference Signal................................................................................. 75

    5.8.3 Configuring the Synchronization Signal........................................................................ 76

    5.8.4 Configuring the Control Channels................................................................................. 77

    5.8.5 Configuring the Shared Channel...................................................................................81

  • ContentsR&SFSV-K10x (LTE Downlink)

    5User Manual 1176.7661.02 04.1

    6 Analyzing Measurement Results........................................................826.1 Selecting a Particular Signal Aspect.........................................................................82

    6.2 Defini

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