Method for switching district

A cell handover and cell technology, which is applied to communication between multiple stations, radio/induction link selection arrangement, selection device, etc. Guaranteed and other issues to achieve the effect of improving the success rate of handover, reducing the time spent, and ensuring timeliness

Inactive Publication Date: 2009-01-28
TD TECH COMM TECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since handover judgment and handover processing take a long time, the timeliness of existing cell handover cannot be guaranteed, and the handover success rate cannot be guaranteed.

Method used

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  • Method for switching district
  • Method for switching district
  • Method for switching district

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Embodiment Construction

[0042] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and examples.

[0043] The main idea of ​​the present invention is to add a process in which UE judges whether there is a candidate target cell that satisfies the pre-set pre-handover judgment condition according to the radio signal quality of the serving cell and the neighboring cell in the existing cell handover process (in the present invention , called handover preprocessing), this handover preprocessing enables UTRAN to complete the process of establishing a wireless link and performing parameter reconfiguration processing in the target cell in advance, thereby effectively reducing the time spent in the cell handover process and ensuring timely handover performance, thereby improving the handover success rate.

[0044] figure 2 It is an exemplary flow chart of t...

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Abstract

The invention discloses a method for switching cells, comprising the following steps: firstly, switching judgment conditions and preset preswitching judgment conditions which are preset for determining a single candidate target cell are acquired by a user terminal (UE); secondly, when the UE judges the existence of the candidate target cell according to the wireless signal quality of service cells and adjacent cells, and the preswitching judgment conditions, the UE requests a UMTS (Universal Mobile Telecommunication System) Terrestrial Radio Access Network (UTRAN) to switch the candidate target cell; thirdly, the UE and the UTRAN store the switching result; and fourthly, when the UE judges the existence of a target cell according to the wireless signal quality of the service cells and the adjacent cells, and the switching judgment conditions, the UE and the UTRAN communicate with each other by using the switching result if judgment is made that the target cell is consistent with the candidate target cell. Application of the method can reduce the time of the process of switching the cells, guarantee the switching timeliness and then improve the switching success rate.

Description

technical field [0001] The invention relates to mobile communication technology, in particular to a cell switching method. Background technique [0002] In a wireless communication system, when the wireless signal quality of a user terminal (UE) serving cell is poor, it is usually necessary to hand over the UE to an adjacent cell with better wireless signal quality (neighboring cell for short) to provide users with better services. The process is called cell handover. In a Time Division Synchronous Code Division Multiple Access (TD-SCDMA) system, there is usually only one wireless link between the UE and the Universal Mobile Communications System Radio Access Network (UTRAN). Sex is very important. [0003] According to the relevant provisions of the 3rd Generation Partnership Project (3GPP) agreement, the cell handover in the TD-SCDMA system is usually judged by the UTRAN according to the wireless signal quality of the serving cell and the neighboring cell reported by the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q7/38H04B7/26
Inventor 赵品华
Owner TD TECH COMM TECH LTD
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