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Frequency offset estimation method and device and storage medium

A technology of frequency offset estimation and rough estimation, which is applied in the field of communication and can solve problems such as loss of accuracy and failure to meet system design requirements

Active Publication Date: 2020-06-05
UNISOC CHONGQING TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the accuracy of the above scheme suffers from a large loss in low signal-to-noise ratio, which cannot meet the system design requirements

Method used

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  • Frequency offset estimation method and device and storage medium
  • Frequency offset estimation method and device and storage medium
  • Frequency offset estimation method and device and storage medium

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Embodiment Construction

[0113] Various exemplary embodiments, features, and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. The same reference numbers in the figures indicate functionally identical or similar elements. While various aspects of the embodiments are shown in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

[0114] The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration." Any embodiment described herein as "exemplary" is not necessarily to be construed as superior or better than other embodiments.

[0115] In addition, in order to better illustrate the present disclosure, numerous specific details are given in the following specific implementation manners. It will be understood by those skilled in the art that the present disclosure may be practiced without some of the specific details. In some instances, methods, means, componen...

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Abstract

The invention relates to the technical field of communication, in particular to a frequency offset estimation method and device and a storage medium. The method comprises the following steps: acquiring a local PBCH signal, wherein the local PBCH signal comprises local PBCH signals respectively corresponding to a plurality of estimated samples obtained by reconstruction; obtaining a frequency domain receiving PBCH signal, wherein the frequency domain receiving PBCH signal comprises received frequency domain receiving PBCH signals corresponding to the plurality of estimation samples; and performing frequency offset estimation according to the local PBCH signal and the frequency domain receiving PBCH signal to obtain a frequency offset estimation result. According to the embodiment of the invention, the local PBCH signal and the frequency domain received PBCH signal are used as the statistical samples of PBCH frequency offset estimation, the coverage range of the scheme is increased in amode of increasing the number of the samples, and the precision of frequency offset estimation is improved, so the performance of PBCH frequency offset estimation under a low signal-to-noise ratio iseffectively improved.

Description

technical field [0001] The present disclosure relates to the field of communication technologies, and in particular, to a frequency offset estimation method, device and storage medium. Background technique [0002] In the communication system, due to the influence of various factors, there will be a frequency deviation between the user equipment and the access network equipment, which is reflected in the frequency offset interference carried by the received signal. The frequency offset interference not only affects the analysis of the received signal, but in severe cases will cause The operation status of the entire user equipment is paralyzed, and there is a problem of network disconnection. [0003] Therefore, it is necessary to design a targeted frequency offset estimation scheme on the user equipment side to estimate the frequency offset between the user equipment and the access network equipment, and then perform corresponding correction and compensation on the user equ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L25/02
CPCH04L25/0202H04L25/0212
Inventor 杨恩浩谭舒杨柳飞林登彪
Owner UNISOC CHONGQING TECH CO LTD
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