主要内容

LTE Throughput Analyzer

Generate throughput curves for physical downlink shared channel (PDSCH) conformance test analysis

描述

LTE Throughput Analyzer应用执行PDSCH解调性能测试。TS 36.101[1],附件A.3指定UE性能测试的RMC。

这app also performs analysis and testing for custom user-defined measurement channels settings. For an example, seeLTE Throughput Analyzer User-Defined Testing。当传输方案时,该方法也可以用于模拟传输模式7-10(TxScheme) is'Port5','Port7-8','port8', or'port7-14'PDSCH解调需要基于DM-RS的通道估计。在这种情况下,预编码矩阵W根据TS 36.101随机定义每个子框架[1], Table 8.3.1-1 for FDD and Table 8.3.2-1 for TDD.

对话框输入和输出

在里面LTE PDSCH Conformance Testing用户界面,您可以设置以下参数:

Parameter (Equivalent Field) 描述
参考通道(RC)

'R0'(default),'R1','R2','R3','R4','R5','R6','r7','r8','r9','R10','r11','r12','r13','r14','R6-27RB','r12-9rb','R11-45RB',User defined

Reference measurement channel (RMC) number or type, as specified in TS 36.101, Annex A.3.

  • 为了促进系统信息块(SIB)的传输,通常没有在子帧5上安排用户数据。但是,'R.31-3A''r.31-4'are sustained data rate RMCs and have user data in subframe 5.

  • 'R.6-27RB','R.12-9RB', 和'r.11-45rb'是为非标准带宽配置的自定义RMC,它们保持与TS 36.101中定义的标准化版本相同的代码速率,附件A.3。

要定义您自己的参考渠道,请选择User defined。这用户定义的配置dialog box opens. For配置结构变量名称, type the name of an RC parameter structure variable in the MATLAB®workspace.

这tool expects this variable to be present in the MATLAB base workspace. Create the basic configuration structure with the functionlteRMCDL通过选择紧密匹配的RMC并修改以满足您的要求。使用这种方法模拟传输模式7-10。具体来说,什么时候TxScheme='Port5','Port7-8','port8', or'port7-14', where DM-RS based channel estimation is required for PDSCH demodulation. In this case, the precoding matrix,W根据TS 36.101,表8.3.1-1或表8.3.2-1,根据每个子框架随机定义。

双工模式(DuplexMode)

'FDD'(default),'TDD'

Duplexing mode, specified as:

  • 'FDD'for Frequency Division Duplex or

  • 'TDD'用于时间分段的双工

Transmission scheme(TxScheme)

'Port0',“ txdiversity”,'CDD','SpatialMux','MultiUser','Port5','Port7-8','port8','port7-14'

PDSCH transmission scheme, specified as one of the following options.

Transmission scheme 描述
'Port0' 单天线端口,端口0
“ txdiversity” Transmit diversity
'CDD' 大延迟循环延迟多样性方案
'SpatialMux' Closed loop spatial multiplexing
'MultiUser' 多用户mimo
'Port5' Single-antenna port, port 5
'Port7-8' Single-antenna port, port 7, whenNLayers= 1。Dual layer transmission, ports 7 and 8, whenNLayers= 2
'port8' 单人体港口,港口8
'port7-14' Up to eight layer transmission, ports 7–14

PDSCH Rho (dB)(Rho)

0(默认),数字标量

PDSCH resource element power allocation, in dB

Propagation Model(DelayProfile)

'离开','EPA'(default),'eva','ETU','hst'

延迟配置文件模型。有关更多信息,请参阅传播通道模型

Doppler (Hz)(多普尔弗雷克)

'5','70','300','750'

最大Dopplerfrequency, in Hz.

Antenna Correlation(微相关)

'Low','中等的','High'

Correlation between UE and eNodeB antennas

没有接收天线(NRxAnts)

非负标量整数

Number of receive antennas

SNR (dB)

Numeric vector

SNR values, in dB

仿真长度(帧)

积极标量整数

模拟长度,框架

HARQ过程数量(NHARQProcesses)

1、2、3、4、5、6、7或8

HARQ过程数量per component carrier

完美的频道估计器

'Yes','No'

Channel estimator provides a perfect channel estimate when setting is'Yes'。有关更多信息,请参阅ltedlperfectChannElestimate

PMI模式(PMIMode)

'Wideband'(default),“子边界”

PMI报告模式。PMIMode='Wideband'对应于Pusch报告模式1-2或PUCCH报告模式1-1(PUCCH报告类型2)和PMIMode=“子边界”corresponds to PUSCH reporting Mode 3-1.

仿真结果

Variable name beginning with an alphabetical character and containing alphanumeric characters.

仿真结果输出变量名称。当您单击时生成波形,在MATLAB工作区中创建了一个带有此名称的新变量。

打开LTE吞吐量分析仪应用程序

  • MATLABToolstrip: On theAppstab, underSignal Processing and Communications,选择LTE Throughput Analyzer应用图标。

  • MATLAB命令提示:输入ltethroughputatunalyzer

例子

展开全部

Use theLTE Throughput Analyzerapp to run a conformance test for a single codeword RMC R.12-9RB for the transmit diversity transmission scheme with EPA-5 fading.

Open theLTE Throughput Analyzer应用程序。

Adjust default runtime parameter settings:

  • Set参考通道toR.12-9RB

  • ForSNR (dB), enter[-3.0 -1.0 1.0 3.0]

  • For仿真长度(帧), enter20

Select开始模拟。该应用程序提供了预计剩余时间。模拟完成后,对话框显示性能曲线。

20帧运行的仿真结果显示在MATLAB命令窗口中。

-3 dB snr吞吐量的结果:-1 dB snr吞吐量的47.65%结果:1 dB snr吞吐量的87.65%结果:3 dB SNR吞吐量的95.59%结果:100.00%

In addition, the同样现在变量出现在MATLAB工作区。View its contents.

同样
同样= 1x4 struct array with fields: throughput tpPerFrame rawBER

Open the LTE throughput analyzer app and run a user-defined measurement channel. Define a custom measurement channel. You can select any RMC and change any settings, though care must be taken not to define an invalid configuration.

对于此示例,以R.3 RMC开始,然后将资源块数量从50调整到30。

CMC= lteRMCDL('R.3');cmc.ndlrb = 30
CMC=带有字段的结构:RC: 'R.3' NDLRB: 30 CellRefP: 1 NCellID: 0 CyclicPrefix: 'Normal' CFI: 2 PCFICHPower: 0 Ng: 'Sixth' PHICHDuration: 'Normal' HISet: [112x3 double] PHICHPower: 0 NFrame: 0 NSubframe: 0 TotSubframes: 10 Windowing: 0 DuplexMode: 'FDD' PDSCH: [1x1 struct] OCNGPDCCHEnable: 'Off' OCNGPDCCHPower: 0 OCNGPDSCHEnable: 'Off' OCNGPDSCHPower: 0 OCNGPDSCH: [1x1 struct]

Open the LTE throughput analyzer app.

ltethroughputatunalyzer

图LTE PDSCH一致性测试包含2个轴对象和UICONTROL类型的其他对象。轴对象1带有标题吞吐量与SNR包含类型行的对象。该对象表示目标吞吐量。所有SNR值的Axes Object 2带有标题为每个SNR值的平均吞吐量运行。该对象表示目标吞吐量。

Choose the参考通道dropdown menu and selectUser defined

在提示下,输入自定义测量通道配置结构名称,CMC

To tun this user-defined configuration, click开始模拟

Related Examples

参考

[1]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;技术规格组无线电访问网络。URL:https://www.3gpp.org

Version History

在R2014A中引入

See Also

Apps

Functions