分析PDSCH解调性能测试的吞吐量
LTE吞吐量分析仪Overview
You can use the LTE Throughput Analyzer app to execute a physical downlink shared channel (PDSCH) demodulation performance test.
开放LTE吞吐量分析仪应用程序
要打开LTE吞吐量分析仪应用程序,请选择应用tab on the MATLAB desktop and click the following icon.
另外,可以从MATLAB启动LTE吞吐量分析仪应用程序®命令窗口。
从命令行开放LTE吞吐量分析仪应用程序
执行时,将出现“ LTE吞吐量分析仪对话框”ltedlconformanceTestTool
没有输入参数的函数。
ltedlconformanceTestTool
Dialog Box Inputs and Outputs
参数
In theLTE PDSCH一致性测试用户界面,您可以设置以下参数:
参数(等效字段) | 值 | Description | ||||||||||||||||||||
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Reference channel((RC ) |
|
参考测量通道(RMC)编号或类型,如TS 36.101,附件A.3所示。
To define your own reference channel, select 该工具期望此变量在MATLAB基本工作区中存在。使用功能创建基本的配置结构 |
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Duplex mode((双工模板 ) |
|
双链模式,指定为:
|
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传输方案((txscheme ) |
|
PDSCH传输方案,指定为以下选项之一。
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PDSCH RHO(DB)((罗 ) |
0(默认),数字标量 |
PDSCH资源元素功率分配,DB |
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传播模型((延迟版 ) |
|
Delay profile model. For more information, seePropagation Channel Models。 |
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多普勒(Hz)((多普尔弗雷克 ) |
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Maximum多普勒频率,以Hz。 |
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天线相关性((MIMOCorrelation ) |
|
UE和EnodeB天线之间的相关性 |
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没有接收天线((nrxant ) |
Nonnegative scalar integer |
接收天线的数量 |
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SNR(DB) | 数字向量 |
SNR值,在DB中 |
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Simulation length (frames) | Positive scalar integer |
Simulation length, in frames |
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HARQ过程数量((nharqprocesses ) |
1, 2, 3, 4, 5, 6, 7, or 8 |
每个组件载体的HARQ过程数量 |
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Perfect channel estimator |
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频道估计器在设置时提供了完美的频道估计 |
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PMI mode((pmimode ) |
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PMI报告模式。 |
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Simulation results | 可变名称以字母字符开头,包含字母数字字符。 |
Simulation results output variable name. When you clickGenerate waveform,,,,a new variable with this name is created in the MATLAB workspace. |
Examples
Perform 4-by-2 Transmit Diversity Conformance Test
This example shows how to run a conformance test for a single codeword RMC R.12-9RB for the transmit diversity transmission scheme with EPA-5 fading.
打开LTE吞吐量分析仪应用程序。选择应用tab on the MATLAB desktop and click the following icon.
LTE PDSCH一致性测试对话框打开。
来自Reference channel下拉列表,选择R.12-9RB
。
为了SNR, 进入[-3.0 -1.0 1.0 3.0]
。
为了Simulation length (frames), 进入20
。
Click theStart simulationbutton. Wait a few minutes for the simulation to run. In the bottom-right corner of the window, next toEstimated time remaining,,,,the tool displays an approximation of how long the simulation still needs to run. When the simulation finishes, the dialog box appears as shown in the following figure.
The simulation result for a 20-frame run is displayed in the MATLAB Command Window.
结果3 dBSNR Throughput: 47.65% Result for -1 dB SNR Throughput: 87.65% Result for 1 dB SNR Throughput: 95.59% Result for 3 dB SNR Throughput: 100.00%
除此之外simResults
variable now appears in the MATLAB workspace. EntersimResults
查看其内容。
simResults
simresults = 1x4结构数组带有字段:吞吐量tpperframe rawber
Perform Customized Conformance Test with User-Defined Configuration
This example shows how to run a conformance test for a user-defined configuration structure. You can carry out performance analysis and testing under user-defined settings. To do so, select'用户自定义'从“参考通道”弹出菜单中,然后提示配置结构变量名称。测试工作台将期望此变量在“基础”工作区中存在(用户已经定义)。
执行单个物理资源块(PRB)RMC R.0符合度测试,除了分配的资源块移至上带边缘而不是下带边缘。首先,使用功能创建基本配置结构ltermcdl
。选择最紧密的RMC。然后,对此进行修改PRBSET
requirement.
rmc = ltermcdl('R.0'); rmc.PDSCH.PRBSet = rmc.NDLRB-1;
打开LTE吞吐量分析仪应用程序。选择应用tab on the MATLAB desktop and click the following icon.
LTE PDSCH一致性测试对话框打开。
来自Reference channel下拉列表,选择用户自定义
。用户定义的配置对话框打开。
为了Configuration structure variable name, 进入rmc
。ClickOK。
Click theStart simulationbutton. Wait a few minutes for the simulation to run. In the bottom-right corner of the window, next toEstimated time remaining,,,,the tool displays an approximation of how long the simulation still needs to run. When the simulation finishes, the dialog box appears as shown in the following figure.
The simulation result for a 20-frame run is displayed in the MATLAB Command Window.
-2 dB snr吞吐量的结果:-1 dB snr吞吐量的7.22%结果:1 dB snr吞吐量的15.56%结果:2 dB SNR吞吐量的28.33%结果:33.89%
除此之外simResults
variable now appears in the MATLAB workspace. EntersimResults
查看其内容。
simResults
simresults = 1x4结构数组带有字段:吞吐量tpperframe rawber
References
[1] 3GPP TS 36.101。“进化的通用地面无线电通道(E-UTRA);用户设备(UE)无线电传输和接收。”第三代合伙项目;技术规格组无线电访问网络。URL:https://www.3gpp.org。