Method and device for adjusting cell reselection parameters

A cell reselection parameter and cell reselection technology, applied in the field of mobile communication, can solve the problems of handover failure, UE not reselection in time, affecting user perception, etc.

Active Publication Date: 2017-09-26
COMBA TELECOM SYST CHINA LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, with the large-scale deployment of Femto base stations, because Femto base stations are plug-and-play, the deployment of Femto base stations is likely to have strong coverage of adjacent sites.
For the UE doing business in the overlapping area between the Femto base station and the adjacent base station, if the reselection parameters are set unreasonably, the UE will not be reselected in time when the site is at the edge of coverage. At this time, if the UE is doing business, the strong signal of the neighboring site The interference to the UE doing business under this site is relatively large, which can easily cause handover failure, cause user call drop, and affect user perception

Method used

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  • Method and device for adjusting cell reselection parameters
  • Method and device for adjusting cell reselection parameters
  • Method and device for adjusting cell reselection parameters

Examples

Experimental program
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Effect test

Embodiment 1

[0054] Embodiment 1 of the present invention provides a method for adjusting cell reselection parameters, the process of which is as follows figure 1 As shown, it specifically includes the following steps:

[0055] Step 101: Determine the largest signal strength value among the signal strength values ​​of neighboring cells sensed by the base station of the serving cell, and use the neighboring cell from which the largest signal strength value comes as the strongest interfering neighboring cell;

[0056] Specifically, the base station of the serving cell may acquire the signal strength values ​​of each neighboring cell by enabling a self-organizing network (Self Organized Network, SON) interception function. At this time, the newly powered-on base station starts the neighbor cell list self-configuration algorithm after successfully completing the cell search and network synchronization.

[0057] The adjacent cell information monitored by SON includes: PCCPCH transmit power (PC...

Embodiment 2

[0080] Embodiment 2 of the present invention provides a method for adjusting cell reselection parameters, the process of which is as follows image 3 As shown, it specifically includes the following steps:

[0081] Step 301 to step 303 are the same as step 101 to step 103 in Embodiment 1, and will not be repeated here.

[0082] Step 304: Determine the number of interference values ​​that are greater than the set strong interference threshold value among the interference values ​​to existing services acquired by the base station of the serving cell within the second set duration;

[0083] Step 305: When the number is greater than or equal to the set first interference times threshold, set the strong interference indication to TRUE; when the number is less than or equal to the set second interference times threshold, set the strong interference indication to TRUE false FALSE;

[0084] Step 306: When the detection of strong interference indicates that the consecutive set times ...

Embodiment 3

[0091] Based on the same inventive concept as that of Embodiment 1 and Embodiment 2, Embodiment 3 of the present invention provides a cell reselection parameter adjustment device, and its structural diagram is as follows Figure 4 shown. The device includes: a first determination module 41, a second determination module 42, and a sending module 43; wherein:

[0092] The first determining module 41 is configured to determine the largest signal strength value among the signal strength values ​​of neighboring cells sensed by the base station of the serving cell, and use the neighboring cell from which the largest signal strength value comes from as the strongest interference Neighboring district;

[0093] The second determination module 42 is used to determine the point where the difference between the signal strength value of the strongest interfering neighboring cell and the signal strength value of the serving cell is greater than the set hysteresis value of the serving cell ...

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Abstract

The invention discloses a cell reselection parameter adjustment method and device. The method includes the steps that the maximum signal intensity value in signal intensity values, monitored by a base station of a service cell, of neighbor cells is determined, and a neighbor cell with the maximum signal intensity value is used as a strongest interference neighbor cell; a point which meets the requirement that the difference between the signal intensity value of the strongest interference neighbor cell and the signal intensity value of the service cell is larger than a set delay value of the service cell for set time is determined, and the signal intensity value, at the point, of the service cell is recorded; the difference between the recorded signal intensity value and set minimum emitting power received by the service cell is used as a cell reselection measurement trigger threshold value and issued to UE in the service cell. Due to the fact that the condition for determining the point is the condition for the UE to conduct cell reselection, when the difference between the signal intensity value of the point and the set minimum emitting power is used as the cell reselection measurement trigger threshold value, the UE can start reselection measurement in good time, and the call drop phenomenon of the UE is reduced.

Description

technical field [0001] The present invention relates to mobile communication technology, in particular to a cell reselection parameter adjustment method and equipment. Background technique [0002] In a wireless communication system, in order to cover the entire geographical area, according to the deployment of macro base stations, it is usually necessary to plan and design the area reasonably and meticulously, so that mobile terminals can be provided with better coverage in the entire geographical area. Through artificial network planning, the macro network can cover most areas and provide services to users in the planned area through reasonable planning. Even so, there will still be places that cannot be covered. Failure to provide services to users or provide services that meet requirements seriously affects user perception. [0003] Nowadays, the areas where user services occur are more and more indoors, especially the demand for big data services in indoor areas, as we...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W36/00H04W36/24
CPCY02D30/70
Inventor 李小山
Owner COMBA TELECOM SYST CHINA LTD
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