链路级仿真
使用 5G Toolbox™ System object 对多输入多输出 (MIMO) 信道进行建模，例如具有不同时延分布的衰落信道和高速列车 (HST) 传播信道。您还可以对基站 (BS) 与用户设备 (UE) 之间的路径损耗和阴影衰落进行建模。此页上提供的示例显示了使用 TDL 和 CDL 信道模型执行的各种链路级误块率 (BLER) 仿真。
App
| 无线信道设计器 | 设计并分析 5G NR 信道 (自 R2025a 起) |
函数
nrCDLChannel | Model CDL MIMO channel |
nrTDLChannel | Model TDL MIMO channel model |
nrHSTChannel | Model HST MIMO channel (自 R2022b 起) |
nrPathLossConfig | Path loss configuration parameters (自 R2021b 起) |
nrPathLoss | Path loss and shadow fading between BS and UE (自 R2021b 起) |
主题
链路仿真
- 对 5G NR 通信链路进行建模
学习如何对 5G NR 通信链路进行建模。
- SNR Definition Used in Link Simulations
Learn how 5G Toolbox defines the signal-to-noise ratio (SNR) in link simulations that use AWGN.
传播信道
- Interactive CDL Channel Model Configuration
Configure CDL channel model and visualize channel characteristics and channel OFDM response using an app. (自 R2024b 起) - 基于 App 的 TDL 信道设计与分析
为 5G Toolbox 配置无线信道设计器，以设计和分析 TDL 信道模型。 (自 R2025a 起) - Visualize CDL Channel Model Characteristics
Visualize CDL channel characteristics and explore channel information about the antenna element, element pattern, and cluster paths. - 使用 CDL 信道路径滤波器重新构造信道冲激响应
使用 CDL 信道模型的路径滤波器重新构造信道冲激响应并估计定时偏移。
精选示例
NR PDSCH 吞吐量
测量 5G NR 下行链路的 PDSCH 吞吐量。
NR PUSCH 吞吐量
测量 5G NR 上行链路的 PUSCH 吞吐量。
NR PUCCH Block Error Rate
Measure BLER of uplink control information (UCI) transmitted on physical uplink control channel (PUCCH) in a 5G NR link.
TDD Reciprocity-Based PDSCH MU-MIMO Using SRS
Implement downlink MU-MIMO by exploiting channel reciprocity in a TDD scenario.
NR PDSCH Throughput Using Channel State Information Feedback
Measure the PDSCH throughput of a 5G NR adaptive link that adjusts the MCS, precoding matrix, and number of layers based on the CSI feedback.
5G NR PRACH Detection and False Alarm Test
Measure the probability of correct detection of the PRACH preamble in the presence of a preamble signal.
NR Uplink Channel State Information Estimation Using SRS
Use sounding reference signals (SRS) for synchronization, channel estimation, and uplink channel state information (CSI) estimation.
NR SSB Beam Sweeping
Employ beam sweeping at gNB and UE and learn about beam management procedures during initial access.
NR Downlink Transmit-End Beam Refinement Using CSI-RS
Transmit multiple CSI-RS resources in different directions in a scattering environment and select the optimal transmit beam based on RSRP.
NR Phase Noise Modeling and Compensation
Analyze the impact of phase noise in a 5G OFDM system and use PT-RS in compensating the CPE.
5G NR Downlink CSI Reporting
Calculate and compare the CSI (CQI, PMI, and RI) parameters using CSI-RS with practical and perfect channel estimation.
Include Path Loss in NR Link-Level Simulations
Analyze the performance impact of path loss, transmit power, and receive noise in 5G NR link-level simulations.
Accelerate Link-Level Simulations with Parallel Processing
Accelerate link-level simulations using a cluster of workers from a parallel pool.
Accelerate End-to-End Simulation with Frequency-Domain Channel Modeling
Accelerate end-to-end simulations by performing frequency-domain channel modeling using a CDL channel model.
Accelerate 5G Simulation Using GPU
Use GPU arrays in a simplified PDSCH link simulation to speed up execution time.
NR V2X Sidelink PSCCH and PSSCH Throughput
Measure the link-level throughput and BLER of the NR V2X PSCCH and PSSCH, including SCI and SL-SCH transport channel coding.
NR NTN PDSCH Throughput
Measure the PDSCH throughput of a 5G NR link in a nonterrestrial network (NTN) channel.
5G Beamforming with Ray Tracing Channels
Use SVD or PMI codebook search to calculate 5G beamforming weights in a ray tracing channel.
Model Hybrid Beamforming with CDL Channel
Apply digital and analog beamforming to a 5G NR PDSCH link by using a CDL channel.
NR NTN PUSCH Throughput
Measure the PUSCH throughput of a 5G NR link in a nonterrestrial network (NTN) channel.
