Method and device for data detection in communication system and computer storage medium

A technology of data detection, computer programming, applied in the field of communication systems, capable of solving problems such as increased levels of interference

Active Publication Date: 2020-02-21
ALCATEL LUCENT SHANGHAI BELL CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These methods improve resource utilization on the one hand, but also lead to an increase in interference levels on the other hand

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 230

[0062] At block 230, the communications device 102 obtains a channel estimate and an estimate of a covariance matrix of interference and noise based on the N parts into which each reference signal time domain symbol in the set is divided. For purposes of example and not limitation, the Figure 4 An example implementation 230' of block 230 is shown in .

[0063] In this example implementation, at block 231, the communication device 102 may, for each reference signal time-domain symbol in the set, respectively perform a time-frequency transformation of length L / N on the corresponding N parts (e.g., discrete Fourier transform Transform (DFT) or Fast Fourier Transform (FFT)) to obtain N signal sequences. Among them, L represents the length of the normal time-frequency transformation determined by the system bandwidth. The embodiments are described below using DFT as an example of time-frequency transformation, however, it should be understood that FFT and other time-frequency tr...

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PUM

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Abstract

The embodiment of the invention provides a method and device for data detection in a communication system and a computer readable medium. The method described herein includes receiving, at a receivingdevice, a set of reference signal time domain symbols from a target transmitting device, the reference signal having a comb distribution with a spacing factor of N in the frequency domain, N being apositive integer not less than 2; for each reference signal time domain symbol in the set, dividing the reference signal time domain symbol into N parts with repeatability; obtaining channel estimation and estimation of a covariance matrix of interference and noise based on N parts of each reference signal time domain symbol in the set; applying an adjustment factor to the estimate of the covariance matrix to obtain a corrected covariance matrix, the adjustment factor being associated with a spacing factor N; and performing data detection based on the channel estimation and the corrected covariance matrix. By utilizing the embodiment of the invention, the performance of data detection can be improved.

Description

technical field [0001] Embodiments of the present disclosure generally relate to the technical field of communication systems, and specifically relate to a method, device and computer storage medium for data detection in a communication system. Background technique [0002] The introduction in this section is intended to facilitate a better understanding of the present disclosure. Accordingly, the contents of this section should be read on this basis and should not be construed as an acknowledgment of what is or is not prior art. [0003] With the development of wireless communication technology, various communication applications have emerged to meet different user needs. At the same time, due to the increase in communication traffic, spectrum resources are increasingly scarce. In order to alleviate resource pressure, communication systems often allow multiple transmissions to be scheduled on the same resource, or allow multiple services to use the same resource pool in a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L25/02
CPCH04L25/021H04L25/0204H04L25/0224H04L25/0256
Inventor 李栋刘勇马川
Owner ALCATEL LUCENT SHANGHAI BELL CO LTD
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