Phase noise parameter estimation method and device, user equipment and base station

Abstract

The embodiment of the invention provides a phase noise parameter estimation method and device, user equipment and a base station, and belongs to the technical field of communication. The method comprises the following steps: acquiring a first time-frequency resource for transmitting a phase tracking reference signal (PTRS) and a second time-frequency resource for punching; wherein the second time-frequency resource comprises punching subcarriers located on the two sides of the first time-frequency resource, and the numbers of the punching subcarriers on the two sides are different; receiving a downlink signal according to the first time-frequency resource and the second time-frequency resource; and determining a phase noise parameter according to the downlink signal. Therefore, the number of the perforated second subcarriers on one side of the frequency domain of the first time-frequency resource is reduced through the relative relation between the first time-frequency resource for transmitting the phase tracking reference signal and the perforated second time-frequency resource, so that the user equipment can estimate the phase noise parameter with lower system overhead and complexity.

Description

technical field [0001] The present application relates to the field of communication technologies, and in particular, to a method, apparatus, user equipment, base station, and readable storage medium for estimating phase noise parameters. Background technique [0002] In order to support a higher transmission rate and a wider range of business types, and considering that the frequency resources above 52.6GHz are more abundant, further research needs to be done on mobile communications in the frequency band above 52.6GHz. However, in the mobile communication system working at high frequency, the influence of phase noise caused by the unsatisfactory radio frequency devices of the user equipment (UE) and base station (eNodeB) becomes more serious with the increase of the working frequency. The signal is compensated for phase noise to ensure system performance. By introducing a phase noise compensation reference signal at the transmitting end, it can be ensured that the receivi...

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Problems solved by technology

[0003] In the related art, the density of the phase tracking reference signal (Phase Tracking Reference Signal, PTRS) in the frequency domain is configured such that every 2 physical resource blocks (Physical Resource Block, PRB) have a resource element (Resource Element, RE) as PTRS, There is a PTRS on each OFDM symbol for transmitting Physical Downlink ShareChannel (PDSCH) data. Although the transmission performance of 64QAM modulation is improved to a certain extent, the amount of computation on each OFDM symbol is relatively large, which affects the receiving The computing power of the terminal processor puts forward high requirements

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