name: PTRS
full_form: Phase-tracking reference signal
context: [27] reported that with a 3-tap BLS ICI equalizer, a clustered PTRS structure does not offer any performance advantage over the existing Rel-15 NR distributed PTRS structure. - One source [66] reported that the performance of clustered PTRS allocation is worse than that of Rel-15 PTRS based ICI compensation scheme and further showed that the performance of subcarrier nulling allocation is similar or superior (up to 2 dB gain especially in the scenarios with low PTRS overhead, K=4) to that of Rel-15 PTRS based ICI compensation scheme. - Two sources, [22], and [69], evaluated the performance with some new PTRS patterns (e.g. chunk based PTRS pattern to allow adjacent PTRS symbols in frequency) and reported that the performance with ICI compensation based on new PTRS patterns is better than the Rel-15 pattern with CPE compensation only. - One source [30] reported that for the same ICI compensation algorithm, the legacy PTRS pattern outperforms the block PTRS pattern. It showed that for
description: Phase-tracking reference signal (PTRS) is a technology used in telecommunications to track phase variations and improve signal quality in wireless communication systems, particularly in 5G New Radio (NR). PTRS is utilized for channel estimation, beamforming, and interference cancellation.
explanation: The context describes PTRS as a technological element within telecommunications, specifically focusing on signal processing techniques like channel estimation, beamforming, and interference cancellation to enhance wireless communication quality.
section_title: 6.1.1Observations on PDSCH/PUSCH
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