下行链路物理信号
用户设备 (UE) 使用主下行链路同步信号和辅下行链路同步信号来获取小区标识和帧定时。UE 使用解调参考信号 (DM-RS) 和信道状态信息参考信号 (CSI-RS) 来辅助执行信道估计并为测量提供支持。对于相位噪声补偿，UE 使用 PDSCH 相位跟踪参考信号 (PT-RS)。定位参考信号 (PRS) 用于估计 UE 在无线网络中的位置。
函数
主题
- 将 5G 物理信道和信号映射到资源网格
使用 5G Toolbox™ 功能生成 5G NR 物理信道和信号并将其映射到资源网格。
- 同步信号块和突发
生成多个 5G NR 同步信号块 (SSB) 以形成同步信号突发（SS 突发）。
- NR Channel Estimation Using CSI-RS
Perform channel estimation using CSI-RS symbols and indices mapped into a carrier resource grid.
- 5G NR CSI-RS Measurements
Learn how to measure the CSI-RSRP, CSI-RSSI, and CSI-RSRQ using the CSI-RS.
精选示例
NR PDSCH Resource Allocation and DM-RS and PT-RS Reference Signals
Learn about the effects of PDSCH resource allocation on the time-frequency structure of DM-RS and PT-RS.
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.
NR Positioning Reference Signal
Learn about the effects of different PRS resource set configurations on the time-frequency structure of PRS resources.
NR Positioning Using PRS
Calculate the position of UE within a network of gNBs by using NR positioning reference signal.
Vehicle Tracking for Urban Air Mobility Using 5G Position Reference Signal
Use 5G position reference signals (PRS) to track unmanned aerial vehicles (UAV) for urban air mobility applications.
