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Frequency point searching method and device and storage medium

A search method and frequency point technology, applied in the communication field, can solve problems such as multi-processing resources, long frequency point search time, and low cell search efficiency

Active Publication Date: 2021-09-28
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this frequency point search method needs to consume more processing resources, and the frequency point search takes a long time, resulting in low cell search efficiency

Method used

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  • Frequency point searching method and device and storage medium
  • Frequency point searching method and device and storage medium
  • Frequency point searching method and device and storage medium

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Embodiment Construction

[0028] In order to understand the characteristics and technical contents of the embodiments of the present application in more detail, the implementation of the embodiments of the present application will be described in detail below in conjunction with the accompanying drawings. The attached drawings are only for reference and description, and are not intended to limit the embodiments of the present application.

[0029] The technical solution of the embodiment of the present application can be applied to various communication systems, such as: Global System of Mobile communication (Global System of Mobile communication, GSM) system, Code Division Multiple Access (Code Division Multiple Access, CDMA) system, Wideband Code Division Multiple Access (Wideband Code Division Multiple Access, WCDMA) system, General Packet Radio Service (General Packet Radio Service, GPRS), Long Term Evolution (Long Term Evolution, LTE) system, LTE Frequency Division Duplex (Frequency Division Duplex,...

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Abstract

The embodiment of the invention discloses a frequency point searching method and device and a storage medium, and the method comprises the steps: carrying out the time domain-to-frequency domain conversion processing of a received time domain signal during the related processing operation in a frequency point searching process, and obtaining a frequency domain signal; performing frequency domain-to-time domain conversion processing and energy calculation on the frequency domain signal to obtain an energy value of at least one central frequency point; performing cyclic shift and frequency domain-to-time domain conversion processing on the frequency domain signal according to a preset frequency offset to obtain at least one center frequency point and a first correlation value of a frequency offset point of the center frequency point; therefore, the second correlation values of the center frequency point and the frequency offset point can be obtained only by processing the first correlation values of the center frequency point and the frequency offset point by using the energy value of the center frequency point, and the energy value of the frequency offset point does not need to be calculated in the calculation process of the energy value, so the calculation amount of energy calculation is reduced, processing resources are saved, the influence on the system performance loss is small, the frequency point searching time is shortened on the whole, and the cell searching efficiency is improved.

Description

technical field [0001] The present application relates to communication technologies, and in particular to a frequency point search method, device and storage medium. Background technique [0002] At present, in the cell search stage, a power-based frequency point search manner is usually used to perform cell search. The specific frequency point search method includes: the communication device will receive signals in the target frequency band, perform power value statistics and power value sorting on the received signals, determine the frequency points corresponding to signals with power values ​​greater than the power threshold value, and then Click to do a neighborhood search. However, this frequency point search method needs to consume more processing resources, and the frequency point search takes a long time, resulting in low cell search efficiency. Contents of the invention [0003] In order to solve the above technical problems, the embodiments of the present appl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W48/16H04W48/20
CPCH04W48/16H04W48/20
Inventor 洪波闫晓鹏方昶
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD