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A channel estimation method, device and receiver

A channel estimation and channel technology, applied in the direction of channel estimation, baseband system components, etc., can solve the problem that the receiver cannot directly estimate the frequency domain channel response of the PTRS signal, so as to improve the channel estimation capability of the PTRS frequency domain and ensure compensation effect of ability

Active Publication Date: 2022-06-07
DATANG MOBILE COMM EQUIP CO LTD
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Problems solved by technology

[0003] In order to solve the problem in the prior art that when the PTRS at the transmitting end is configured before DFT, the receiving end cannot directly estimate the frequency-domain channel response of the time-frequency resource location where the PTRS signal is located, an embodiment of the present invention provides a channel estimation method, device and Receiver for channel estimation based on DFT-s-OFDM system

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  • A channel estimation method, device and receiver
  • A channel estimation method, device and receiver
  • A channel estimation method, device and receiver

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[0023] In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments These are some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

[0024] Phase noise comes from the local oscillators in the transmitter and receiver, and it affects the transmission of multi-carrier signals. In the high frequency band (for example: above 6GHz), the influence of phase noise will be more serious, and it is necessary to compensate the phase noise of the received signal to ensure the system p...

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Abstract

Embodiments of the present invention provide a channel estimation method, device, and receiver. The channel estimation method is used for a receiving end based on a DFT-s-OFDM system, including: receiving the first time signal sent by the transmitting end of the DFT-s-OFDM system Domain signal, the first time domain signal is the transmission signal obtained by the sending end using a preset PTRS configuration method, the preset PTRS configuration method includes inserting PTRS before performing DFT on the PUSCH data; performing time domain signal on the first time domain signal processing to obtain a PTRS time-domain signal for channel estimation; perform channel estimation according to the PTRS time-domain signal, and obtain a channel response at a frequency domain position where the PTRS is located. Therefore, the present invention can directly estimate the frequency domain channel response of the time-frequency resource position where the PTRS signal is located in the DFT-s-OFDM system, and improves the channel estimation capability based on the DFT-s-OFDM system.

Description

technical field [0001] The present invention relates to the field of communication technologies, and in particular, to a channel estimation method, device and receiver. Background technique [0002] Phase noise comes from the local oscillators in the transmitter and receiver, and it affects the transmission of multi-carrier signals. In the high frequency band (for example: above 6GHz), the influence of phase noise will be more serious, and it is necessary to compensate the phase noise of the received signal to ensure the system performance. Currently, in a DFT-s-OFDM (Discrete Fourier TransformSpread Orthogonal Frequency Division Multiplexing) system, PTRS (Phase Tracking Reference Signal, phase tracking reference signal) is used for compensation phase noise. However, if the PTRS at the transmitting end is configured before DFT (Discrete Fourier Transform, discrete Fourier transform), there is currently no optimization scheme for performing channel estimation on the PTRS a...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L25/02
CPCH04L25/022
Inventor 李传军宋月霞
Owner DATANG MOBILE COMM EQUIP CO LTD
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