5G/NR - Reference Signals                                           Home : www.sharetechnote.com

 

 

 

 

 

As in LTE, many types of RS (Refernce Signal) are used in NR and most of them plays similar roles as in LTE. However, there are some important differnces between LTE RS and NR RS. The most important differences can be listed as follows :

  • In NR, there is no CRS (Cell Specific Reference Signal)
  • In NR, there is a new reference signals Phase Tracking Reference Signal, PBCH Reference Signal, Time/Frequency Tracking Reference Signal

 

List of all NR reference signal can be summarized as follows. The details of each reference signal will be posted as separate page.

 

Reference Signal

Functionality

Reference

CSI-RS

CSI aquisition, Beam Management

38.211-7.4.1.5

PDSCH DMRS Required for PDSCH Demodulation

38.211-7.4.1.1

PDCCH DMRS Required for PDCCH Demodulation

38.211-7.4.1.3

PBCH DMRS Required for PBCH Demodulation

38.211-7.4.1.4

PTRS Used for Phase Tracking for PDSCH

38.211-7.4.1.2

Tracking Reference Signal Used for Time Tracking

38.211-7.4.1.6

 

 

 

Reference

 

[1]