CN105792245A - Neighbor cell switching adjusting method and device - Google Patents
Neighbor cell switching adjusting method and device Download PDFInfo
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- CN105792245A CN105792245A CN201410808810.XA CN201410808810A CN105792245A CN 105792245 A CN105792245 A CN 105792245A CN 201410808810 A CN201410808810 A CN 201410808810A CN 105792245 A CN105792245 A CN 105792245A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
Abstract
The invention discloses a neighbor cell switching adjusting method and device. According to the method, statistics is carried out to switching failure rates or switching success rates corresponding to neighbor cells when a piece of UE switches from a serving cell to the neighbor cells; the neighbor cells with the switching failure rates more than a first preset threshold value or the switching success rates less than a second preset threshold value are determined as to-be-adjusted neighbor cells; and the switching weights of the to-be-adjusted neighbor cells are adjusted. According to the technical scheme provided by the invention, the switching success rate is improved, and the network operation quality is improved.
Description
Technical field
The present invention relates to the communications field, the method for adjustment switched in particular to a kind of adjacent area and device.
Background technology
At present, in Long Term Evolution (LTE) agreement, Automatic Neighboring Relation (AutomaticNeighborRelation, referred to as ANR) function has become as the desired content of standard.Automatic Neighboring Relation function can be divided into two stages: self planning and self-optimizing.
(1) self planning: the process that neighboring BS relationship grows out of nothing, namely when being absent from Neighboring Cell List in base station；
(2) self-optimizing: neighboring BS relationship is from having to excellent process, namely when there is Neighboring Cell List in base station.
In optimizing the neighboring BS relationship stage, ANR processes interpolation and the deletion action of neighboring BS relationship.Certainly the interpolation operation of the adjacent area integrity in order to guarantee neighboring BS relationship, thus improving handover success rate；Adjacent area from deletion action then in order to safeguard the effectiveness of adjacent area, reasonably optimize power system capacity, and then reach, from entirety, planning and the configuring adjacent cell relation that minimizes.
The index such as number of times and handover success number of times can be reported to be interpolation adjacent area, base station according to adjacent area in system by ANR function.If behind the adjacent area that certain community is added to this base station, raised suddenly from this base station serving cell to the handover failure rate of this adjacent area, any measure is not taked to may result in call drop, thus affecting the running quality of Consumer's Experience and network；Adjacent area leakage can be caused again to join if deleted this adjacent area, and the reason that handover failure rate raises is likely to be at a comparatively short time memory in interference, quickly just can recover.
As can be seen here, correlation technique lacks the UE how improved under Serving cell and switches to the solution of neighbor cell success rate from Serving cell.
Summary of the invention
Embodiments provide method of adjustment and the device of the switching of a kind of adjacent area, with the problem at least solving to lack the solution that the UE how improved under Serving cell switches to neighbor cell success rate from Serving cell in correlation technique.
According to an aspect of the invention, it is provided the method for adjustment of a kind of adjacent area switching.
The method of adjustment of adjacent area switching according to embodiments of the present invention includes: statistics UE corresponds to handover failure rate or the handover success rate of each adjacent area from Serving cell when switching to adjacent area；Determine that handover failure rate is adjacent area to be adjusted more than the first predetermined threshold value or handover success rate less than the adjacent area of the second predetermined threshold value；Adjust the switching weight of adjacent area to be adjusted.
Preferably, adjacent area includes formal adjacent area and/or interim adjacent area, and interim adjacent area is that Serving cell has been found that but not yet adds the adjacent area of formal Neighboring Cell List to.
Preferably, statistics UE from Serving cell switch to adjacent area time corresponding to the handover failure rate of each adjacent area or handover success rate, including: collection corresponding to the switching total degree of each adjacent area, and handoff failure number of times or handover success number of times；When adjacent area is formal adjacent area, formal Neighboring Cell List management module determines handover failure rate or the handover success rate of formal adjacent area；When adjacent area is interim adjacent area, interim Neighboring Cell List management module determines handover failure rate or the handover success rate of formal adjacent area.
Preferably, the switching weight adjusting adjacent area to be adjusted includes: reduce the switching weight of adjacent area to be adjusted；Set the duration of intervalometer and start intervalometer；After timer expiry, recover the switching weight of adjacent area to be adjusted.
Preferably, the duration of intervalometer is value set in advance, or, the historical data considering front n times amendment switching weight carries out attempting adjusting the empirical value got, and wherein, N is positive integer.
According to a further aspect in the invention, it is provided that the adjusting apparatus of a kind of adjacent area switching.
The adjusting apparatus of adjacent area switching according to embodiments of the present invention includes: statistical module, for adding up handover failure rate or the handover success rate corresponding to each adjacent area from Serving cell when UE switches to adjacent area；Determine module, for determining that handover failure rate is adjacent area to be adjusted more than the first predetermined threshold value or handover success rate less than the adjacent area of the second predetermined threshold value；Adjusting module, for adjusting the switching weight of adjacent area to be adjusted.
Preferably, adjacent area includes formal adjacent area and/or interim adjacent area, and interim adjacent area is that Serving cell has been found that but not yet adds the adjacent area of formal Neighboring Cell List to.
Preferably, statistical module includes: acquisition module, for gathering the switching total degree corresponding to each adjacent area, and handoff failure number of times or handover success number of times；Formal Neighboring Cell List management module, for when adjacent area is formal adjacent area, it is determined that the handover failure rate of formal adjacent area or handover success rate；Interim Neighboring Cell List management module, for when adjacent area is interim adjacent area, it is determined that the handover failure rate of formal adjacent area or handover success rate.
Preferably, adjusting module includes: reduce module, for reducing the switching weight of adjacent area to be adjusted；Setting module, for setting the duration of intervalometer and starting intervalometer；Recover module, for, after timer expiry, recovering the switching weight of adjacent area to be adjusted.
Preferably, the duration of intervalometer is value set in advance, or, the historical data considering front n times amendment switching weight carries out attempting adjusting the empirical value got, and wherein, N is positive integer.
By the embodiment of the present invention, statistics UE is adopted when switching to adjacent area, to correspond to handover failure rate or the handover success rate of each adjacent area from Serving cell；Determine that handover failure rate is adjacent area to be adjusted more than the first predetermined threshold value or handover success rate less than the adjacent area of the second predetermined threshold value；Adjust the switching weight of adjacent area to be adjusted, solve in correlation technique and in the handoff procedure of adjacent area, easily caused the higher problem affecting service quality of handover failure rate by the Serving cell of current base station, and then improve handover success rate, improve network running quality.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, and the schematic description and description of the present invention is used for explaining the present invention, is not intended that inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart of the method for adjustment of adjacent area switching according to embodiments of the present invention；
Fig. 2 is the structured flowchart of the adjusting apparatus of adjacent area switching according to embodiments of the present invention；
Fig. 3 is the structured flowchart of the adjusting apparatus of adjacent area switching according to the preferred embodiment of the invention；
Fig. 4 is the flow chart of the method for adjustment of adjacent area switching according to the preferred embodiment of the invention.
Detailed description of the invention
Below with reference to accompanying drawing and describe the present invention in detail in conjunction with the embodiments.It should be noted that when not conflicting, the embodiment in the application and the feature in embodiment can be mutually combined.
Fig. 1 is the flow chart of the method for adjustment of adjacent area switching according to embodiments of the present invention.As it is shown in figure 1, the method can include following process step:
Step S102: statistics UE handover failure rate or the handover success rate corresponding to each adjacent area from Serving cell when switching to adjacent area；
Step S104: determine that handover failure rate is adjacent area to be adjusted more than the first predetermined threshold value or handover success rate less than the adjacent area of the second predetermined threshold value；
Step S106: adjust the switching weight of adjacent area to be adjusted.
In correlation technique, by the Serving cell of current base station, to easily causing in the handoff procedure of adjacent area, handover failure rate is higher affects service quality.Adopt method as shown in Figure 1, using handover success rate or handover failure rate as judgement foundation, added up UE by base station in service sector and switch over the handover success rate obtained or handover failure rate from this Serving cell to neighbor cell, when determining that handover failure rate is adjacent area to be adjusted more than the first predetermined threshold value or handover success rate less than the adjacent area of the second predetermined threshold value, the switching weight of adjacent area to be adjusted is adjusted.Thus solve in correlation technique and in the handoff procedure of adjacent area, easily caused the higher problem affecting service quality of handover failure rate by the Serving cell of current base station, and then improve handover success rate, improve network running quality.
Added up it should be noted that both can adopt about the statistic processes of above-mentioned handover success rate or handover failure rate according to the mode of predetermined period, naturally it is also possible to adopt the mode of specific events trigger to add up.
In being preferable to carry out process, above-mentioned adjacent area can include formal adjacent area and/or interim adjacent area, and wherein, interim adjacent area is that Serving cell has been found that but not yet adds the adjacent area of formal Neighboring Cell List to.
In a preferred embodiment, introduce the concept of interim adjacent area, in namely from one unknown adjacent area of ANR function discovery to the time being added to formal adjacent area, be interim adjacent area by this adjacent cell definitions.After the unknown adjacent area of certain of this base station becomes interim adjacent area, just this base station can be allowed to switch to this interim adjacent area, so the advantage of operation is in that: can meet the experience of user to the full extent, UE is avoided to cause call drop because certain adjacent area cannot switch to this adjacent area in the process becoming formal adjacent area from unknown adjacent area, thus improve the reliability of system.
Preferably, in step s 102, add up the handover failure rate corresponding to each adjacent area when UE switches to adjacent area from Serving cell or handover success rate may comprise steps of:
Step S1: gather corresponding to the switching total degree of each adjacent area, and handoff failure number of times or handover success number of times；
Step S2: when adjacent area is formal adjacent area, formal Neighboring Cell List management module determines handover failure rate or the handover success rate of formal adjacent area；
Step S3: when adjacent area is interim adjacent area, interim Neighboring Cell List management module determines handover failure rate or the handover success rate of formal adjacent area.
In a preferred embodiment, it is possible to Real-time Collection is corresponding to the switching total degree of each adjacent area, and handoff failure number of times or handover success number of times.Then further according to the type of adjacent area, the data collected are updated in corresponding Neighboring Cell List.Namely when adjacent area is formal adjacent area, then managed module by formal Neighboring Cell List and determine handover failure rate or the handover success rate of formal adjacent area；And when adjacent area is interim adjacent area, then managed module by interim Neighboring Cell List and determine handover failure rate or the handover success rate of formal adjacent area, and then by judging whether whether handover failure rate determine adjacent area to be adjusted less than the second predetermined threshold value, and reduce the switching weight of this adjacent area more than the first predetermined threshold value or handover success rate.
Preferably, in step S106, the switching weight adjusting adjacent area to be adjusted can include following operation:
Step S4: reduce the switching weight of adjacent area to be adjusted；
Step S5: set the duration of intervalometer and start intervalometer；
Step S6: after timer expiry, recovers the switching weight of adjacent area to be adjusted.
Namely calculate the duration of intervalometer, and start this intervalometer.After timer expiry, the switching weight of this adjacent area is recovered to initial value.By using intervalometer to perform amendment and the recovery of adjacent area switching weight.
In a preferred embodiment; UE is from Serving cell to the process that the community adjacent with this Serving cell switches over; neighbor cell usually there will be corresponding switching weight, and this switching weight switches to the switching probability of this neighbor cell for characterizing UE from Serving cell.If switching to the handover failure rate of specific adjacent area more than the first predetermined threshold value or handover success rate less than the second predetermined threshold value at UE from Serving cell, then need to reduce the switching weight of specific adjacent area, namely reduce UE and switch to the probability of specific adjacent area from Serving cell.
In being preferable to carry out process, the duration of above-mentioned intervalometer can adopt one of following setting means:
Mode one: value set in advance；This kind of setting means is relatively simple, after the switching weight every time adjusting adjacent area to be adjusted, directly sets a numerical value.
Mode two: the historical data considering front n times amendment switching weight carries out attempting adjusting the empirical value got, and wherein, N is positive integer；This kind of setting means is complex, the value that front n times are set is needed to carry out reference, current value is constantly finely tuned by the value set in conjunction with these n times by the adjustment situation of the switching weight of adjacent area to be adjusted, until getting comparatively satisfied numerical value, this is a kind of experience setting means.
Fig. 2 is the structured flowchart of the adjusting apparatus of adjacent area switching according to embodiments of the present invention.As in figure 2 it is shown, the adjusting apparatus of this adjacent area switching may include that statistical module 10, for adding up handover failure rate or the handover success rate corresponding to each adjacent area from Serving cell when UE switches to adjacent area；Determine module 20, for determining that handover failure rate is adjacent area to be adjusted more than the first predetermined threshold value or handover success rate less than the adjacent area of the second predetermined threshold value；Adjusting module 30, for adjusting the switching weight of adjacent area to be adjusted.
Adopt device as shown in Figure 2, solve in correlation technique and in the handoff procedure of adjacent area, easily caused the higher problem affecting service quality of handover failure rate by the Serving cell of current base station, and then improve handover success rate, improve network running quality.
Preferably, above-mentioned adjacent area may include that formal adjacent area and/or interim adjacent area, and wherein, interim adjacent area is that Serving cell has been found that but not yet adds the adjacent area of formal Neighboring Cell List to.
Preferably, as it is shown on figure 3, statistical module 10 may include that acquisition module 100, for gathering the switching total degree corresponding to each adjacent area, and handoff failure number of times or handover success number of times；Formal Neighboring Cell List management module 102, for when adjacent area is formal adjacent area, it is determined that the handover failure rate of formal adjacent area or handover success rate；Interim Neighboring Cell List management module 104, for when adjacent area is interim adjacent area, it is determined that the handover failure rate of formal adjacent area or handover success rate.
Preferably, adjusting module 30 may include that reduction module 300, for reducing the switching weight of adjacent area to be adjusted；Setting module 302, for setting the duration of intervalometer and starting intervalometer；Recover module 304, for, after timer expiry, recovering the switching weight of adjacent area to be adjusted.
Preferably, the duration of above-mentioned intervalometer can be value set in advance, or, the historical data considering front n times amendment switching weight carries out attempting adjusting the empirical value got, and wherein, N is positive integer.
Fig. 4 is the flow chart of the method for adjustment of adjacent area switching according to the preferred embodiment of the invention.As shown in Figure 4, this flow process can include following process step:
Step S402: all Serving cells of acquisition module Real-time Collection our station are to the switch data of its all adjacent areas, for the switching times collecting our station Serving cell A to adjacent area B and handoff failure number of times.
Step S404: acquisition module judges whether adjacent area B is formal adjacent area, if it is, continue executing with step S406, otherwise, forwards step S416 to.
Step S406: collection data are updated to formal Neighboring Cell List management module by acquisition module.
Step S408: if adjacent area B belongs to formal adjacent area, then managed module by formal Neighboring Cell List and calculate and judge whether adjacent area B meets handover failure rate more than condition less than the second predetermined threshold value of the first predetermined threshold value or handover success rate；If it is, continue executing with step S410；If it is not, then flow process terminates.
Step S410: formal Neighboring Cell List management module notice reduces module and triggers the operation of the switching weight reducing adjacent area B.
Step S412: the statistical data that setting module revises adjacent area switching weight according to initial set value or history calculates timer duration, and starts intervalometer.
Step S414: timer expiry, recovers the switching weight of module recovery adjacent area B, and flow process terminates.
Step S416: acquisition module judges whether adjacent area B is interim adjacent area, if it is, continue executing with step S418；Otherwise, flow process terminates.
Step S418: collection data are updated to interim Neighboring Cell List management module by acquisition module.
Step S420: if adjacent area B belongs to interim adjacent area, then managed module by interim Neighboring Cell List and calculate and judge whether adjacent area B meets handover failure rate more than condition less than the second predetermined threshold value of the first predetermined threshold value or handover success rate；If it is, continue executing with step S422；If it is not, then flow process terminates.
Step S422: interim Neighboring Cell List management module notice reduces module and triggers the operation of the switching weight reducing adjacent area B.
Step S424: the statistical data that setting module revises adjacent area switching weight according to initial set value or history calculates timer duration, and starts intervalometer.
Step S426: timer expiry, recovers the switching weight of module recovery adjacent area B, and flow process terminates.
In from the description above, can be seen that, above embodiments enable following technique effect (it should be noted that these effects are the effects that some preferred embodiment can reach): adopt the technical scheme that the embodiment of the present invention provides, ANR function introduces amendment and recovers the switching weight of adjacent area so that can according to the switching control indexes such as total degree and the handover failure rate switching probability to this adjacent area after automatically adding adjacent area by ANR function；And timer duration can according to history revise adjacent area switching weight statistical data carry out self-adaptative adjustment.Handover failure rate can be reduced so on the one hand, it is ensured that the running quality of system, and be capable of the motility of system on the other hand.
Obviously, those skilled in the art should be understood that, each module of the above-mentioned present invention or each step can realize with general calculation element, they can concentrate on single calculation element, or it is distributed on the network that multiple calculation element forms, alternatively, they can realize with the executable program code of calculation element, thus, can be stored in storage device is performed by calculation element, and in some cases, shown or described step can be performed with the order being different from herein, or they are fabricated to respectively each integrated circuit modules, or the multiple modules in them or step are fabricated to single integrated circuit module realize.So, the present invention is not restricted to the combination of any specific hardware and software.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (10)
1. the method for adjustment of an adjacent area switching, it is characterised in that including:
Counting user equipment UE corresponds to handover failure rate or the handover success rate of each adjacent area from Serving cell when switching to adjacent area；
Determine that handover failure rate is adjacent area to be adjusted more than the first predetermined threshold value or handover success rate less than the adjacent area of the second predetermined threshold value；
Adjust the switching weight of described adjacent area to be adjusted.
2. method according to claim 1, it is characterised in that described adjacent area includes formal adjacent area and/or interim adjacent area, described interim adjacent area is that Serving cell has been found that but not yet adds the adjacent area of formal Neighboring Cell List to.
3. method according to claim 1, it is characterised in that add up the handover failure rate or the handover success rate that correspond to each adjacent area from described Serving cell when described UE switches to adjacent area, including:
Gather corresponding to the switching total degree of each adjacent area, and handoff failure number of times or handover success number of times；
When described adjacent area is formal adjacent area, formal Neighboring Cell List management module determines handover failure rate or the handover success rate of described formal adjacent area；
When described adjacent area is interim adjacent area, interim Neighboring Cell List management module determines handover failure rate or the handover success rate of described formal adjacent area.
4. method according to claim 1, it is characterised in that the switching weight adjusting described adjacent area to be adjusted includes:
Reduce the switching weight of described adjacent area to be adjusted；
Set the duration of intervalometer and start described intervalometer；
After described timer expiry, recover the switching weight of described adjacent area to be adjusted.
5. method according to claim 4, it is characterised in that the duration of described intervalometer is value set in advance, or, the historical data considering the front n times described switching weight of amendment carries out attempting adjusting the empirical value got, and wherein, N is positive integer.
6. the adjusting apparatus of an adjacent area switching, it is characterised in that including:
Statistical module, corresponds to handover failure rate or the handover success rate of each adjacent area for counting user equipment UE when switching from Serving cell to adjacent area；
Determine module, for determining that handover failure rate is adjacent area to be adjusted more than the first predetermined threshold value or handover success rate less than the adjacent area of the second predetermined threshold value；
Adjusting module, for adjusting the switching weight of described adjacent area to be adjusted.
7. device according to claim 6, it is characterised in that described adjacent area includes formal adjacent area and/or interim adjacent area, described interim adjacent area is that Serving cell has been found that but not yet adds the adjacent area of formal Neighboring Cell List to.
8. device according to claim 6, it is characterised in that described statistical module includes:
Acquisition module, for gathering the switching total degree corresponding to each adjacent area, and handoff failure number of times or handover success number of times；
Formal Neighboring Cell List management module, for when described adjacent area is formal adjacent area, it is determined that the handover failure rate of described formal adjacent area or handover success rate；
Interim Neighboring Cell List management module, for when described adjacent area is interim adjacent area, it is determined that the handover failure rate of described formal adjacent area or handover success rate.
9. device according to claim 6, it is characterised in that described adjusting module includes:
Reduce module, for reducing the switching weight of described adjacent area to be adjusted；
Setting module, for setting the duration of intervalometer and starting described intervalometer；
Recover module, for, after described timer expiry, recovering the switching weight of described adjacent area to be adjusted.
10. device according to claim 9, it is characterised in that the duration of described intervalometer is value set in advance, or, the historical data considering the front n times described switching weight of amendment carries out attempting adjusting the empirical value got, and wherein, N is positive integer.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410808810.XA CN105792245A (en) | 2014-12-22 | 2014-12-22 | Neighbor cell switching adjusting method and device |
| PCT/CN2015/077013 WO2016101451A1 (en) | 2014-12-22 | 2015-04-20 | Neighboring cell handover adjustment method, device, and computer storage medium |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410808810.XA CN105792245A (en) | 2014-12-22 | 2014-12-22 | Neighbor cell switching adjusting method and device |
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| CN105792245A true CN105792245A (en) | 2016-07-20 |
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| CN201410808810.XA Pending CN105792245A (en) | 2014-12-22 | 2014-12-22 | Neighbor cell switching adjusting method and device |
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| CN107682883A (en) * | 2017-10-19 | 2018-02-09 | 中国电信股份有限公司南京分公司 | A kind of grand micro- collaboration neighbor cell configuration and optimization method |
| CN107682883B (en) * | 2017-10-19 | 2020-12-01 | 中国电信股份有限公司南京分公司 | Macro-micro cooperative neighbor configuration and optimization method |
| CN108012295A (en) * | 2017-12-05 | 2018-05-08 | 北京邮电大学 | A kind of base station switch method, device, electronic equipment and storage medium |
| CN110621046A (en) * | 2018-06-20 | 2019-12-27 | 大唐移动通信设备有限公司 | Cell switching method and device |
| CN110621046B (en) * | 2018-06-20 | 2020-11-06 | 大唐移动通信设备有限公司 | Cell switching method and device |
| CN111314971A (en) * | 2018-12-12 | 2020-06-19 | 中国移动通信集团北京有限公司 | Network switching method and device |
| CN111314971B (en) * | 2018-12-12 | 2022-01-25 | 中国移动通信集团北京有限公司 | Network switching method and device |
| CN112203361A (en) * | 2020-10-12 | 2021-01-08 | Oppo（重庆）智能科技有限公司 | Method and device for processing radio link failure, terminal and storage medium |
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