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Frequency search method, device, terminal device, and computer-readable storage medium

A technology of network equipment and frequency offset, which is applied in the Internet field, can solve problems such as longer search time, lower search efficiency, and power value deviation, and achieve the effect of reducing cell search time and improving search efficiency

Active Publication Date: 2022-04-15
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, if there is interference in the scene where the terminal device is located, this search method will cause deviations in the power value received by the terminal device, resulting in longer search time and lower search efficiency

Method used

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  • Frequency search method, device, terminal device, and computer-readable storage medium
  • Frequency search method, device, terminal device, and computer-readable storage medium
  • Frequency search method, device, terminal device, and computer-readable storage medium

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Embodiment Construction

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0031] The network device will send a synchronization signal to the terminal device according to a certain period, so that the terminal device searches for the synchronization signal within the system bandwidth to synchronize with the network device, and then the terminal device can receive the data sent by the network device. Correspondingly, after starting up, the terminal device usually uses a power-based frequency point search method to perform a preliminary cell search, so as to...

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Abstract

The embodiment of the present application discloses a frequency search method, device, terminal equipment, and computer-readable storage medium. The method includes: the terminal equipment converts the received time domain signal through frequency domain to obtain a frequency domain signal sequence; After the frequency position of the domain synchronization signal sequence in the frequency domain signal sequence, the frequency domain synchronization signal sequence is converted in the time domain to obtain a time domain synchronization signal sequence; the terminal device obtains the time domain synchronization signal of each time domain signal point in the time domain synchronization signal power value, and determine the frequency domain signal point corresponding to the time domain signal point with the largest power value as the candidate search point. The embodiment of the present application is beneficial to quickly determine the search frequency point and improve the search efficiency.

Description

technical field [0001] The present application relates to the technical field of the Internet, and in particular to a frequency search method, device, terminal equipment and computer-readable storage medium. Background technique [0002] After the terminal device is started, it will conduct a preliminary cell search, try to synchronize with the cell and perform data transmission after synchronization. At present, terminal equipment usually uses a power-based frequency point search method to perform preliminary cell search. The specific process for the terminal device to perform a preliminary cell search based on the power-based frequency point search method can be as follows: sort the power values ​​of the received signals in the frequency band where the terminal device is located, and the terminal device determines the signal corresponding to the signal whose power value is greater than the power threshold value. frequency point, and further cell search is performed accord...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W48/16
CPCH04W48/16
Inventor 刘君
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD