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Network screening method, user terminal and readable storage medium

A screening method and user terminal technology, applied in the field of communication, can solve the problem that the communication network with the strongest signal cannot be screened out, and achieve the effect of avoiding SSB screening error

Active Publication Date: 2020-06-16
SPREADTRUM COMM (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present invention solves the technical problem that the communication network with the strongest signal cannot be screened out

Method used

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  • Network screening method, user terminal and readable storage medium
  • Network screening method, user terminal and readable storage medium

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Embodiment Construction

[0028] In the prior art, in the absence of prior information, the Gain value used when searching for a network is not accurate, and a uniform Gain value is often used when receiving data. Therefore, the cell leading to the strongest signal or the strongest SSB of the same cell cannot be screened out. For example, there are multiple cells in the current frequency point, and there are multiple SSBs in each cell, and each SSB in each cell also has a certain energy difference. If the currently tried Gain value is too large for the SSB with strong signal, it will saturate it, but for the SSB with weaker energy, this Gain value is appropriate. The above screening scheme will result in cells or SSBs with weaker energy being preferentially screened out, and the communication equipment will not be able to work in a good environment with the strongest network signal.

[0029] In the embodiment of the present invention, the real-time gain value adjustments are performed on all possible ...

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Abstract

The invention discloses a network screening method, a user terminal and a readable storage medium. The network screening method comprises the following steps: acquiring a reference SSB and half-frameposition and frequency offset information thereof; adjusting the search frequency offset according to the half-frame position of the reference SSB and the frequency offset information to obtain the adjusted search frequency offset and all possible SSB positions in the half frame; performing real-time gain value adjustment on all possible SSBs in the half frame, and performing directional search ina preset range of all possible SSB positions in the half frame in combination with the adjusted search frequency offset to obtain a target SSB; and carrying out screening in the target SSB to obtainthe SSB with the strongest signal. By adopting the scheme, the SSB with the strongest signal can be searched in cell search.

Description

technical field [0001] The invention belongs to the technical field of communication, and in particular relates to a network screening method, a user terminal and a readable storage medium. Background technique [0002] With the rapid development of wireless communication technology, the fifth generation of mobile communication technology (5G for short) has emerged. In the 3rd Generation Partnership Project (3rd Generation Partner Project, 3GPP), a synchronization broadcast block (Synchronization Signal Block, SSB) of an undefined cell is introduced to measure a communication network. [0003] When searching for a communication network, first find the frequency point with the strongest energy. Then, SSB search is performed on the strongest frequency point. Once the SSB of a certain cell is synchronized and decoded successfully, the cell will be reported. In the search process, generally use the gain (Gain) strategy for network signal reception: first set n levels of appro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W36/00H04W36/30H04W56/00
CPCH04W36/0007H04W36/30H04W56/001H04W56/0035
Inventor 刘惠
Owner SPREADTRUM COMM (SHANGHAI) CO LTD