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Blind switching method and device, and base station

A blind handover and base station technology, applied in electrical components, wireless communication, etc., can solve the problems of poor user perception and low handover success rate, and achieve the effect of avoiding call drop and improving handover success rate

Inactive Publication Date: 2018-03-16
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] A blind handover method, device, and base station provided according to an embodiment of the present invention solve the problems of low handover success rate and poor user perception caused by randomly selecting a target cell during blind handover

Method used

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  • Blind switching method and device, and base station
  • Blind switching method and device, and base station
  • Blind switching method and device, and base station

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0110] In this embodiment, a high-priority neighboring cell is used as an optimal candidate target neighboring cell to perform blind handover.

[0111] (1) During the detection period, the detection module detects the neighboring cell status, load information, and handover failure times based on the performance index of the neighboring cell, and reports to the algorithm module.

[0112] Assuming that the serving cell has 5 neighbor cell pairs, the statistical results are shown in Table 1 within the detection period.

[0113] Table 1. Neighborhood state table

[0114]

[0115] (2) The algorithm module performs neighbor cell state update and neighbor cell information sorting according to the data reported by the detection module.

[0116] Step a1. Perform the first sorting according to the priority of neighboring cells, and establish a preliminary sequence as shown in Table 2.

[0117] Table 2. Neighborhood status table in order of priority

[0118] first level

...

Embodiment 2

[0131] In this embodiment, a low-priority neighboring cell is used as an optimal candidate target neighboring cell to perform blind handover.

[0132] (1) During the detection period, the detection module respectively detects the state of the neighboring cell, the load information and the number of handover failures based on the performance index of the neighboring cell, and reports to the algorithm module.

[0133] Assuming that the serving cell has 5 neighbor cell pairs, the statistical results are shown in Table 3 within the detection period.

[0134] Table 3. Neighborhood state table

[0135]

[0136] (2) The algorithm module performs neighbor cell state update and neighbor cell information sorting according to the data reported by the detection module.

[0137] Step b1. According to the state of the neighboring cell, add the neighboring cell 1' to the blacklist of the neighboring cell.

[0138] Step b2. Perform the first sorting according to the priority of neighbori...

Embodiment 3

[0152] In this embodiment, taking no candidate target neighboring cell as an example, the frequency point with the highest priority is selected for blind redirection.

[0153] Table 5. Neighborhood state table

[0154]

[0155] (1) During the detection period, the detection module respectively detects the state of the neighboring cell, the load information and the number of handover failures based on the performance index of the neighboring cell, and reports to the algorithm module.

[0156] Assuming that the serving cell has 5 neighbor cell pairs, the statistical results are shown in Table 5 within the detection period.

[0157] (2) The algorithm module performs neighbor cell state update and neighbor cell information sorting according to the data reported by the detection module.

[0158] According to the status of the neighboring cells, all the neighboring cells 1-5 are added to the black list of the neighboring cells, and the list of candidate target neighboring cells ...

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Abstract

The invention discloses a blind switching method, a blind switching device and a base station, and relates to the technical field of wireless and mobile communication. The method comprises the steps of determining candidate target neighbor areas applied to blind switching through detecting neighbor areas; and when the blind switching is triggered, selecting the optimal neighbor area from the candidate target neighbor areas to execute blind switching. According to the method and the device provided by the embodiment of the invention, during the period of blind switching, the optimal neighbor area is selected for switching, so that the phenomenon that call drop is caused or user perception is seriously affected due to switching abnormity is avoided.

Description

technical field [0001] The invention relates to the technical field of wireless and mobile communication, in particular to a blind handover method, device and base station. Background technique [0002] Blind handover is a key component of intra-system mobility. When a base station is abnormal, it will seriously affect user experience and waste system resources. Blind handover can quickly migrate users in the serving cell to other cells according to the status of the current serving cell, avoiding user call drop and ensuring user awareness. [0003] At present, the processing of blind handover is mainly to relocate the users in the serving cell, and the selection of the target cell is very random. Especially in the case of an abnormal state of the neighboring cell or the fact that the neighboring cell does not exist, and the performance index of the neighboring cell is very poor, it will cause the user to fail to migrate normally and cause call drop, or the performance of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W36/00H04W36/16H04W36/30
CPCH04W36/0016H04W36/0061H04W36/165H04W36/30
Inventor 韩志刚
Owner ZTE CORP
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