Main Content

Test and Measurement

Describes waveform generation, visualization, and transmitter performance analysis

LTE Toolbox™ provides functions that let you measure transmitter performance characteristics. The examples featured here demonstrate transmitter modeling and performance analysis. Communications Toolbox™ and DSP System Toolbox™ System objects provide additional quantitative tools for measuring system performance, and graphical utilities for visualizing waveforms.

Apps

LTE Waveform Generator Create, impair, visualize, and export LTE waveforms
LTE Throughput Analyzer Generate throughput curves for physical downlink shared channel (PDSCH) conformance test analysis

Functions

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lteRMCDL Downlink reference measurement channel configuration
lteRMCUL Uplink reference measurement channel or FRC configuration
lteTestModel Downlink test model configuration structure
lteRMCDLTool Generate downlink RMC waveform
lteRMCULTool Uplink RMC or FRC waveform generation
lteTestModelTool Generate downlink test model waveform
lteEVM Error vector magnitude calculation

Objects

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comm.ConstellationDiagram Display constellation diagram for input signals
dsp.SpectrumAnalyzer Display frequency spectrum of time-domain signals
timescope Display time-domain signals
dsp.ArrayPlot Display vectors or arrays
comm.ErrorRate Compute bit or symbol error rate of input data
comm.EVM Measure error vector magnitude

Topics

Generate a Test Model

The LTE specifications define conformance test models for transmitter tests.

Featured Examples

LTE Parameterization for Waveform Generation and Simulation

LTE Parameterization for Waveform Generation and Simulation

The steps involved and the different ways to parameterize end-to-end simulations and static waveform generation using LTE Toolbox™. In this example we focus on the downlink, but the concepts discussed apply to the uplink as well.
Open Script
LTE Downlink Test Model (E-TM) Waveform Generation

LTE Downlink Test Model (E-TM) Waveform Generation

Generate a test model using LTE Toolbox™.
Open Script
LTE Uplink EVM and In-Band Emissions Measurements

LTE Uplink EVM and In-Band Emissions Measurements

How the LTE Toolbox™ can be used to perform Error Vector Magnitude (EVM) and in-band emissions measurements on an uplink signal as per TS 36.101 Annex F [ 1 ].
Open Script
LTE Downlink Adjacent Channel Leakage Power Ratio (ACLR) Measurement

LTE Downlink Adjacent Channel Leakage Power Ratio (ACLR) Measurement

How the Adjacent Channel Leakage Power Ratio (ACLR) can be measured within a downlink Reference Measurement Channel (RMC) signal using the LTE Toolbox™.
Open Script
PDSCH Error Vector Magnitude (EVM) Measurement

PDSCH Error Vector Magnitude (EVM) Measurement

Measures the EVM within a downlink Reference Measurement Channel (RMC) signal and a downlink Test Model (E-TM) signal, according to the EVM measurement requirements specified in TS 36.104, Annex E [ 1 ].
Open Script
Waveform Acquisition and Analysis using LTE Toolbox with Test and Measurement Equipment

Waveform Acquisition and Analysis using LTE Toolbox with Test and Measurement Equipment

How an over-the-air LTE waveform can be captured and analyzed using the LTE Toolbox™, the Instrument Control Toolbox™ and RF signal analyzer hardware.
Open Script
LTE Uplink EVM and In-Band Emissions Measurements

LTE Uplink EVM and In-Band Emissions Measurements

How the LTE Toolbox™ can be used to perform Error Vector Magnitude (EVM) and in-band emissions measurements on an uplink signal as per TS 36.101 Annex F [ 1 ].
Open Script
Modeling and Testing an LTE RF Transmitter

Modeling and Testing an LTE RF Transmitter

描述射频(RF) im的影响pairments in an LTE transmitter. The example generates the baseband LTE waveform, which consists of an E-UTRA test model (E-TM), by using LTE Toolbox™ and models the RF transmitter by using RF Blockset™.
Open Model
Modeling and Testing an LTE RF Receiver

Modeling and Testing an LTE RF Receiver

Demonstrates how to model and test an LTE RF receiver using LTE Toolbox™ and RF Blockset™.
Open Script
LTE Sidelink Resource Pools and PSCCH Period

LTE Sidelink Resource Pools and PSCCH Period

How sidelink direct communication resource pools and PSCCH periods are defined and parameterized. It shows the relationship between the semi-static RRC pool parameters and the PSCCH period structure. It also shows how the dynamic scheduling parameters (DCI and SCI) for transmission mode 1 and mode 2 affect the final transmission resource selection.
Open Script
NB-IoT Downlink Waveform Generation

NB-IoT Downlink Waveform Generation

Generate LTE-Advanced Pro Release 13 Narrowband IoT (NB-IoT) waveforms for test and measurement applications using the LTE Toolbox™.
Open Script
NB-IoT Uplink Waveform Generation

NB-IoT Uplink Waveform Generation

Generate LTE-Advanced Pro Release 13 Narrowband IoT (NB-IoT) uplink waveforms consisting of the Narrowband Physical Uplink Shared Channel (NPUSCH) and the associated demodulation reference signals for test and measurement applications using the LTE Toolbox™.
Open Script
Release 12 Downlink Carrier Aggregation Waveform Generation, Demodulation and Analysis

Release 12 Downlink Carrier Aggregation Waveform Generation, Demodulation and Analysis

How multiple downlink carriers can be generated, aggregated and further demodulated using the LTE Toolbox™.
Open Script
Uplink Carrier Aggregation Waveform Generation, Demodulation, and Analysis

Uplink Carrier Aggregation Waveform Generation, Demodulation, and Analysis

How multiple uplink carriers can be generated, aggregated, and demodulated using LTE Toolbox™. Error Vector Magnitude (EVM) and in-band emissions are measured for the demodulated carrier as per TS 36.101 Annex F [ 1 ].
Open Script
Waveform Generation and Transmission using LTE Toolbox with Test and Measurement Equipment

Waveform Generation and Transmission using LTE Toolbox with Test and Measurement Equipment

How an over-the-air LTE waveform can be generated and analyzed using the LTE Toolbox™, the Instrument Control Toolbox™ and a Keysight Technologies® RF signal generator and analyzer.
Open Script
参考信号的测量(RSRP, RSSI, RSRQ) for Cell Reselection

参考信号的测量(RSRP, RSSI, RSRQ) for Cell Reselection

In the LTE system, a UE must detect and monitor the presence of multiple cells and perform cell reselection to ensure that it is "camped" on the most suitable cell. A UE "camped" on a particular cell will monitor the System Information and Paging of that cell, but it must continue to monitor the quality and strength of other cells to determine if cell reselection is required.
Open Script

LTE Toolbox Documentation

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