Howtosignalprocessing
- What is PTRS in 5G?
- Is PTRS demodulation reference signal?
- Which reference signal is used with Pdcch in 5G?
- What is pusch in 5G?
What is PTRS in 5G?
PTRS stands for Phase Tracking Reference signal. It's main function is to track phase of the Local Oscillator at transmitter and receiver. PTRS enables suppression of phase noise and common phase error specially at higher mmwave frequencies. It is present both in uplink (in NR-PUSCH) and downlink (in NR-PDSCH) channels ...
Is PTRS demodulation reference signal?
The four main reference signals are the demodulation reference signal (DMRS), phase-tracking reference signal (PTRS), sounding reference signal (SRS) and channel-state information reference signal (CSI-RS). DMRS is used to estimate the radio channel for demodulation.
Which reference signal is used with Pdcch in 5G?
In 5G NR, PDSCH is the physical downlink channel that carries user data. DM-RS and PT-RS are the reference signals associated with PDSCH.
What is pusch in 5G?
In 5G NR, PUSCH is the physical uplink channel that carries user data. DM-RS and PT-RS are the reference signals associated with PUSCH. DM-RS is used for channel estimation as part of coherent demodulation of PUSCH. To compensate for the common phase error (CPE), 3GPP 5G NR introduced PT-RS.
