Downlink Physical Signals
Primary and secondary downlink synchronization signals are used by the user equipment (UE) to obtain the cell identity and frame timing. The UE uses the demodulation reference signal (DM-RS) and the channel state information reference signal (CSI-RS) to aid channel estimation and to support measurements. For phase noise compensation, the UE uses the PDSCH phase tracking reference signal (PT-RS). Positioning reference signal (PRS) is used to estimate the position of the UE in the wireless network.
Functions
Topics
- Map 5G Physical Channels and Signals to the Resource Grid
Generate and map 5G NR physical channels and signals to the resource grid using 5G Toolbox™ features.
- Synchronization Signal Blocks and Bursts
Generate multiple 5G NR synchronization signal blocks (SSBs) to form a synchronization signal burst (SS burst).
- 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.
Featured Examples
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.
