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Frequency sweeping method and terminal equipment

A technology of terminal equipment and frequency scanning, which is applied in the field of communication and can solve problems such as long frequency scanning time

Active Publication Date: 2019-03-15
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Embodiments of the present invention provide a frequency scanning method and terminal equipment to solve the technical problem in the prior art that the frequency scanning time of NB-IoT terminals is long

Method used

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  • Frequency sweeping method and terminal equipment
  • Frequency sweeping method and terminal equipment
  • Frequency sweeping method and terminal equipment

Examples

Experimental program
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Effect test

Embodiment 1

[0072] See figure 2 , the embodiment of the present invention provides a frequency scanning method, which can be applied to a terminal device, wherein the process of the frequency scanning method can be described as follows.

[0073] S101: Based on the bandwidth to be scanned, determine the first frequency point set FreqPointSet, the first FreqPointSet includes N Freq frequency points, N Freq is an integer greater than or equal to 1;

[0074] S102: Perform frequency scanning on the first FreqPointSet by using the first frequency scanning method; wherein, the first frequency scanning method is used to determine the frequency point of the cell whose signal-to-noise ratio SNR is greater than the first SNR threshold;

[0075] S103: If the target cell is not detected on any frequency point of the first FreqPointSet, then use the second frequency scanning method to scan the second FreqPointSet in the first FreqPointSet; wherein, the second frequency scanning method is used to det...

Embodiment 2

[0145] See Figure 4 , based on the same inventive concept, an embodiment of the present invention provides a terminal device, where the terminal device includes a determination module 41 , a frequency scanning module 42 and a detection module 43 .

[0146] Wherein, the determination module 41 is configured to determine the first frequency point set FreqPointSet based on the bandwidth to be scanned, and the first FreqPointSet includes N Freq frequency points, the N Freq is an integer greater than or equal to 1;

[0147] The frequency scanning module 42 is configured to perform frequency scanning on the first FreqPointSet by using a first frequency scanning method; wherein, the first frequency scanning method is used to determine the frequency point of the cell whose signal-to-noise ratio SNR is greater than the first SNR threshold;

[0148] The detection module 43 is configured to scan the second FreqPointSet in the first FreqPointSet in a second frequency scanning manner if...

Embodiment 3

[0167] Based on the same inventive concept, a terminal device is provided in an embodiment of the present invention, and the terminal device includes:

[0168] at least one processor, and

[0169] a memory, a communication interface communicatively connected to the at least one processor;

[0170] Wherein, the memory stores instructions executable by the at least one processor, and the at least one processor uses the communication interface to execute the method described in Embodiment 1 by executing the instructions stored in the memory.

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Abstract

The embodiment of the invention provides a frequency sweeping method and terminal equipment, which are used to solve the technical problem of longer NB-IoT (Narrow Band Internet of Things) terminal frequency sweeping time existing in the prior art. The frequency sweeping method includes: determining a first frequency point set FreqPointSet on the basis of bandwidth on which frequency sweeping is to be carried out, wherein first FreqPointSet includes NFreq frequency points, and NFreq is an integer greater than or equal to 1; using a first frequency sweeping manner for frequency sweeping on first FreqPointSet; wherein the first frequency sweeping manner is used to determine frequency points where cells of which signal-noise ratios (SNRs) are greater than a first SNR threshold are located; and using a second frequency sweeping manner for frequency sweeping on second FreqPointSet in first FreqPointSet if a target cell is not detected at all the frequency points of first FreqPointSet, wherein the second frequency sweeping manner is used to determine frequency points where cells of which SNRs are greater than a second SNR threshold are located, the first SNR threshold is greater than thesecond SNR threshold, second FreqPointSet includes MFreq frequency points, and MFreq is a positive integer less than or equal to NFreq.

Description

technical field [0001] The present invention relates to the field of communication technologies, in particular to a frequency scanning method and terminal equipment. Background technique [0002] Narrowband Internet of Things (NB-IoT) terminal receiving signals and base station sending signals need to be at the same frequency point, that is, NB-IoT terminals are required to scan all frequency points in the frequency scanning bandwidth until a certain frequency The target cell is detected on the point. Frequency points are usually detected based on a narrowband primary synchronization signal (Narrowband Primary Synchronization Signal, NPSS) related metric value. [0003] Assuming that the sweep bandwidth is 100MHz, and every 0.1MHz corresponds to a sweep frequency point, the NB-IoT terminal needs to sweep 1000 frequency points in total, and needs to receive 60 times of 10ms sampling data for each frequency point, and needs to convert 60 The measurement values ​​related to t...

Claims

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Application Information

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IPC IPC(8): H04B17/336H04W48/16
CPCH04B17/336H04W48/16
Inventor 贾有朋黄剑华谢鑫徐兵
Owner DATANG MOBILE COMM EQUIP CO LTD
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