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A cell search method and device, storage medium, and terminal

A cell search and cell technology, applied in electrical components, orthogonal multiplexing systems, multiplexing communication, etc., can solve the problems of waste of storage space and measurement resources, and avoid waste of storage space and measurement resources Effect

Active Publication Date: 2022-02-08
SPREADTRUM SEMICON(CHENGDU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem solved by the present invention is how to quickly camp in the CSG member cell, so as to avoid the waste of storage space and measurement resources as much as possible

Method used

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  • A cell search method and device, storage medium, and terminal
  • A cell search method and device, storage medium, and terminal
  • A cell search method and device, storage medium, and terminal

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Experimental program
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Embodiment Construction

[0025] As mentioned in the background, quick camping on to a CSG member cell needs further study.

[0026] According to the 3rd Generation Partnership Project (the 3rd Generation Partnership Project, referred to as 3GPP) protocol TS36.304, when there is a CSG whitelist provided by the NAS, the terminal residing in a non-CSG ordinary cell should use the CSG autonomous The search function searches for previously visited CSG member cells on non-serving frequencies. If a CSG member cell is found, and the CSG member cell is the highest-ranked cell on the frequency, the UE may ignore the frequency priority and directly reselect to the CSG member cell. According to the description of 3GPP protocol TS36.133, the above CSG cell search and reselection process should be completed within 6 minutes.

[0027] According to the performance requirements stipulated in the 3GPP TS36.304-f20 protocol and the 3GPP protocol TS 36.133, when the CSG whitelist of the UE includes at least one CSG iden...

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PUM

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Abstract

A cell search method and device, storage medium, and terminal, the cell search method includes: when successfully camping on a CSG member cell, recording key information of the CSG member cell, the key information includes one or more of the following : Cell frequency, physical cell ID, PLMN, CSG cell ID; when using the CSG autonomous search function, search according to the recorded key information of CSG member cells, and try to camp in CSG member cells. The technical solution provided by the present invention can quickly reside in a CSG member cell, so as to avoid waste of storage space and measurement resources as much as possible.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a cell search method and device, a storage medium, and a terminal. Background technique [0002] Long Term Evolution (LTE) terminals that support the closed subscriber group (Closed Subscriber Group, CSG for short) function are usually prioritized when the CSG whitelist is provided by the Non Access Stratum (NAS for short). Stay in a suitable CSG member cell included in the CSG whitelist, so as to enjoy the special service provided by the CSG member cell to the terminal. [0003] If the terminal has the CSG whitelist provided by the NAS, but is currently camping on a non-CSG cell, it should use the CSG autonomous search function (autonomous search function) to search for previously visited CSG member cells on the non-serving frequency to achieve as soon as possible. The purpose of selecting a CSG member cell. [0004] In the prior art, how to quickly camp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04J11/00H04W8/02H04W24/02
CPCH04J11/0079H04J11/0086H04W8/02H04W24/02
Inventor 张敏王星
Owner SPREADTRUM SEMICON(CHENGDU) CO LTD
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