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Cell reselection method and terminal

A cell reselection and cell technology, which is applied in the field of communication and can solve the problems of unstable terminal connection and poor cell quality.

Active Publication Date: 2020-02-21
VIVO MOBILE COMM 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 provides a cell reselection method and a terminal to solve the problems of poor cell quality after reselection and unstable terminal connection during reselection of different system cells

Method used

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  • Cell reselection method and terminal
  • Cell reselection method and terminal
  • Cell reselection method and terminal

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0064] Example 1: The reselection information includes mapping relationship information used to indicate the priority correspondence between cells of different systems.

[0065] When the reselection information includes the mapping relationship information, the step of correcting the priority of the neighboring cell according to the reselection information related to the cell reselection includes: determining the equivalent priority corresponding to the priority of the neighboring cell according to the mapping relationship information Level: The priority of the neighboring cell is modified to the equivalent priority, and the modified priority (ie, the equivalent priority) is the target priority of the neighboring cell.

[0066] Wherein, the mapping relationship information in the embodiment of the present invention may be the corresponding relationship between the frequency point priority of the NR system and the frequency point priority of the LTE system, and its form may be a bitm...

example 2

[0068] Example 2: The reselection information includes priority adjustment parameter information.

[0069] When the reselection information includes priority adjustment information, the step of correcting the priority of the neighboring cell according to the reselection information related to the cell reselection includes: correcting the priority of the neighboring cell according to the priority adjustment information.

[0070] Wherein, the priority adjustment parameter information is used to indicate the priority scaling value, and the terminal can modify the priority of the neighboring cell in the following manner: multiplying or dividing the priority of the neighboring cell by the priority scaling value. Wherein, the priority scaling value may be a preset value or a ratio of the highest priority of a cell of a different system. Assuming that the frequency priority of the LTE cell is 0-7, and the frequency priority of the NR cell is 0-9, then when the source cell is an LTE cell a...

example 3

[0073] Example 3: The reselection information includes priority comparison threshold information and priority adjustment parameter information.

[0074] When the priority of the neighboring cell or the source cell is greater than the threshold indicated by the priority comparison threshold information, the terminal adjusts the parameter information according to the priority to modify the priority of the neighboring cell. The specific correction method can be implemented with reference to the above-mentioned example 2, so it will not be repeated here.

[0075] Assuming that the source cell is an LTE cell, and the neighboring cell is an NR cell, when the priority of the LTE cell is greater than the threshold value indicated by the priority comparison threshold information, the priority of the NR cell is modified through the priority adjustment parameter information, such as the priority of the NR cell Multiply the scale by the scale value. For example, the frequency priority of the ...

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Abstract

The invention discloses a cell reselection method, a terminal and network equipment. The cell reselection method comprises the steps: correcting the priority of an adjacent cell, and obtaining a target priority; and executing a cell reselection process according to the target priority and a reselection condition reselected to the neighbor cell. According to the embodiment of the invention, the priority of the neighbor cell can be corrected, and whether the neighbor cell is reselected or not is determined according to the corrected target priority and the reselection condition of reselecting the neighbor cell, so that the quality of the reselected cell can be ensured to meet the residence requirement, and the problem of unstable terminal connection after cell reselection is avoided.

Description

Technical field [0001] The present invention relates to the field of communication technology, in particular to a cell reselection method and terminal. Background technique [0002] In the mobile communication system, when the terminal initially accesses, because the terminal does not know in advance which radio frequency channel (RF channel) is suitable for access, the terminal scans all RF channels one by one according to the terminal capabilities. To find a suitable (suitable) community. Among them, on each scanned carrier frequency, the terminal only needs to search for the cell with the strongest signal quality. Once a suitable cell is found, the cell is selected for access and camping, and the initial cell selection process is stopped. If there are still unscanned RF channels, there is no need to scan them again. [0003] When the terminal resides in the serving cell, the terminal can sequentially evaluate whether each frequency point has a suitable neighbor cell for resele...

Claims

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Application Information

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IPC IPC(8): H04W36/00H04W36/08
CPCH04W36/0061H04W36/08
Inventor 梁敬陈力
Owner VIVO MOBILE COMM CO LTD
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