主要内容

LTEWaveform Generator

创建,损害,可视化和导出LTE波形

描述

TheLTEWaveform Generator应用使您可以创建,损害,可视化和导出LTE波形。

The app provides these capabilities by using theWireless Waveform Generatorapp configured forLTEwaveform generation.Using the app, you can:

  • Generate LTE test model (E-TM) waveforms, as defined in section 6 of TS 36.141[1].

  • Generate LTE downlink reference measurement channel (RMC) waveforms for user equipment (UE) performance testing, as defined in Annex A.3 of TS 36.101[2].

  • 为基站(BS)性能测试生成LTE上行链路RMC波形,如TS 36.104所定义[3].

  • 出口theLTEwaveform to your workspace or to a.mat或a.bb文件。

  • 出口LTEwaveform generation parameters to a runnable MATLAB®script or a Simulink®block.

    • Use the exported script to generate your waveform without the app from the command line.

    • Use the exported block as a waveform source in a Simulink model. For more information, seeWaveform From Wireless Waveform Generator App.

  • Visualize theLTEwaveform in constellation diagram, spectrum analyzer, OFDM grid, 3D spectrogram, time scope, and complementary cumulative distribution function (CCDF) plots.

  • Distort theLTEwaveform by adding RF impairments, such as AWGN, phase offset, frequency offset, DC offset, IQ imbalance, and memoryless cubic nonlinearity.

  • GenerateanLTEwaveform that you can transmit using a connected software defined radio (SDR) or lab test instrument.

    • To transmit a waveform by using an SDR, you must connect one of the supported SDRs (ADALM-Pluto, USRP™, USRP embedded series, and Xilinx®Zynq-based radios) to your computer and have the associated add-on installed. For more information, seeTransmit Using SDR.

    • To transmit a waveform by using lab test instrument, you must connect one of the instruments supported by therfsiggen(仪器控制工具箱)function to your computer. Use of therfsiggen功能需要仪器控制工具箱.

要创建,损害,可视化和导出波形以外的其他波形,您必须重新配置该应用程序。有关功能的完整列表,请参阅Wireless Waveform Generator应用程序。

有关更多信息,请参阅Use Wireless Waveform Generator App.

打开LTE波形生成器应用程序

MATLAB Toolstrip: On theAppstab, underSignal Processing and Communications,单击应用程序图标。

MATLAB命令提示:输入WirelessWaveFormGenerator.此命令打开Wireless Waveform Generator应用程序。配置应用程序LTEwaveform generation, in the波形类型section, select one of theoptionsunderLTE(4G).

Examples

expand all

This example shows how to generate LTE test model (E-TM) and reference measurement channel (RMC) waveforms by using theLTEWaveform Generator应用程序。

开放LTE波形生成器应用

On theAppstab of the MATLAB® toolstrip, select theLTEWaveform Generator应用程序图标下Signal Processing and Communications. This section opens theWireless Waveform Generatorapp configured for LTE waveform generation.

Select LTE Waveform

通过选择要生成的波形来选择下的波形LTE(4G)在里面波形类型应用工具条的部分。该应用支持这些波万博1manbetx形。

  • 下行链路RMC

  • Uplink RMC

  • Test Models

生成LTE波形

Set the parameters for the selected waveform by specifying options in theWaveformtab on the left pane of the app. Add impairments and select visualization tools by specifying options in theGeneration应用工具条的部分。要可视化波形,请单击Generate.

例如,该图显示了带有默认参数的下行链路RMC波形的可视化结果。

出口Generated Waveform

您可以通过单击导出生成的波形及其参数出口. You can export the waveform to:

  • 一个带有一个带有的matlab脚本.m扩大, which you can run to generate the waveform without the app

  • A file with a.bb或者.mat扩大

  • 您的MATLAB工作区作为结构

  • A Simulink® block, which you can use to generate the waveform in a Simulink model without the app

Transmit LTE Waveform

此功能需要仪器控制工具箱™软件。将生成的波形,click theTransmittertab on the app toolstrip and configure the instruments. You can use any instrument supported by therfsiggen(仪器控制工具箱)function.

参考

[1]3GPP TS 36.141. “Base Station (BS) conformance testing.”第三代合伙项目;技术规范组无线电访问网络;进化的通用地面无线电通道(E-UTRA).https://www.3gpp.org.

[2] 3GPP TS 36.101. “Evolved Universal Terrestrial Radio Access (E-UTRA); User Equipment (UE) radio transmission and reception.”第三代合伙项目;Technical Specification Group Radio Access Network.https://www.3gpp.org.

[3] 3GPP TS 36.104。“进化的通用地面无线电通道(E-UTRA);基站(BS)无线电传输和接收。”第三代合伙项目;Technical Specification Group Radio Access Network.https://www.3gpp.org.

Version History

Introduced in R2019a