CN105744573A - Cell handover method and system - Google Patents
Cell handover method and system Download PDFInfo
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- CN105744573A CN105744573A CN201410743123.4A CN201410743123A CN105744573A CN 105744573 A CN105744573 A CN 105744573A CN 201410743123 A CN201410743123 A CN 201410743123A CN 105744573 A CN105744573 A CN 105744573A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0055—Transmission or use of information for re-establishing the radio link
- H04W36/0061—Transmission or use of information for re-establishing the radio link of neighbour cell information
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Abstract
The invention discloses a cell handover method, comprises: a wireless operation and maintenance center configuring, according to communication conditions of a cell, level offset values, in which the level of a neighboring cell is lower than the level of a serving cell, having a mapping relationship with the level of the serving cell and being tolerable by the serving cell in case of a handover, and synchronizing the level offset values to a base station controller; the base station controller acquiring level values downstream of the serving cell and the neighboring cell, and selecting a corresponding level offset value according to the level value downstream of the serving cell; and determining whether the sum of the level value downstream of the neighboring cell and the level offset value is greater than or equal to the sum of the level value downstream of the serving cell and power compensation, and if yes, selecting by screening the neighboring cell satisfying the condition for handover. The invention also provides a system for realizing the method. According to the invention, in the case of poor high level quality, the serving cell can switch to a neighboring cell with a relatively weaker level, thereby reducing a call drop rate index, improving user perception, and increasing service provider competitiveness.
Description
Technical field
The present invention relates to moving communicating field, especially a kind of cell switching method in high level matter difference situation and system.
Background technology
In mobile communication system, handoff technique is to ensure that user obtains a key technology of high network quality service in moving process.
In communication process, when user is in high-interference environment or when being subject to timeslot-level bursty interference at Serving cell, normally but the quality of reception is poor at the up-downgoing incoming level of Serving cell for user.In existing handoff algorithms, with adjacent area level be more than or equal to Serving cell level for switching condition, when the condition that Serving cell meets quality switching carries out adjacent area screening, if neighboring area signal does not have Serving cell strong, can there is the problem that cannot cut out the poor community of lasting speech quality or call drop in time, for instance:
Assuming that adjacent area quality handoff threshold is for just, namely during switch decision, adjacent area must is fulfilled for the condition stronger than Serving cell level, if adjacent area is more weak than Serving cell level, then cannot switch in time；
Assuming that adjacent area quality handoff threshold is for negative (this set is uncommon in existing network), namely during switch decision, adjacent area can be more weak than Serving cell level.The level of Serving cell is not judged when but existing quality handover trigger judges, the level assuming Serving cell is-100dBm, reconvict and switch toward the community that level is more weak, then very possible handoff failure or switched to a worse community, it is to say, be not appropriate for the scene of the flat matter difference of light current according to this set.
Although opening switching within cell likely timeslot-level bursty interference to be made moderate progress, but at present commonly used the causing of frequency hopping closes switching within cell, intra-cell therefore can not be relied on to bring and to solve the problem that high level matter poor (i.e. level higher but speech quality is poor) switches.
In sum, in communication process, if wireless link is in the state of high level matter difference, when neighboring area signal does not have Serving cell strong, existing handoff algorithms cannot ensure that user is switched to good community in time, and user can be constantly under the wireless environment that Serving cell is poor, until call drop.
Summary of the invention
Present invention is primarily targeted at a kind of cell switching method of offer and system, it is intended to solving when wireless link is in the state of high level matter difference, existing handoff algorithms cannot ensure that user is switched to the technical problem of good community in time.
In order to realize foregoing invention purpose, the present invention provides a kind of cell switching method, comprises the following steps:
Wireless operation maintenance center according to the communication condition of community configure with the level of Serving cell exist mapping relations, switch time the adjacent area that can tolerate of the Serving cell level bias number lower than Serving cell, and described level bias number is synchronized to base station controller；
Base station controller obtains the descending level value of Serving cell and adjacent area, selects corresponding level bias number according to the level value that Serving cell is descending；
Judge the descending level value in adjacent area and level bias number and whether descending be more than or equal to Serving cell level value and power back-off and, if so, then screen the adjacent area meeting this condition and switch over.
Preferably, described wireless operation maintenance center according to the communication condition of community configure with the level of Serving cell exist mapping relations, switch time the adjacent area that can tolerate of the Serving cell level bias number lower than Serving cell, and the step that described level bias number is synchronized to base station controller is included:
Wireless operation maintenance center configuration high level matter difference switching switch and adjacent area level bias number, and described high level matter difference switching switch and adjacent area level bias number are synchronized to base station controller；
Described base station controller obtains the descending level value of Serving cell and adjacent area, includes select the step of corresponding level bias number according to the level value that Serving cell is descending after:
Judge whether high level matter difference switching switch is opened, if so, then perform to judge the descending level value in adjacent area and level bias number and whether the level value descending be more than or equal to Serving cell and power back-off and step.
Preferably, included before performing to judge the step whether high level matter difference switching switch is opened:
Switching flow is performed be more than or equal to Serving cell level for switching condition with adjacent area level；
Whether the adjacent area number that judgement can switch over is 0, if so, then performs to judge the step whether high level matter difference switching switch is opened.
Preferably, described wireless operation maintenance center according to the communication condition of community configure with the level of Serving cell exist mapping relations, switch time the adjacent area that can tolerate of the Serving cell level bias number lower than Serving cell, and the step that described level bias number is synchronized to base station controller is included:
The level threshold that wireless operation maintenance center configuration high level matter difference switching switch, adjacent area level bias number and Serving cell need to meet, and the level threshold that described high level matter difference switching switch, adjacent area level bias number and Serving cell need to meet is synchronized to base station controller；
Include after performing to judge the step whether high level matter difference switching switch is opened:
Judge the level threshold whether descending level value of Serving cell need to meet more than Serving cell, if so, then perform to judge the descending level value in adjacent area and level bias number and whether the level value descending be more than or equal to Serving cell and power back-off and step.
Preferably, said method is further comprising the steps of:
The adjacent area satisfied condition is ranked up.
The present invention also provides for a kind of cell handover system, including wireless operation maintenance center and base station controller, wherein:
Wireless operation maintenance center includes configuration module, configure for the communication condition according to community and there are mapping relations in the level of Serving cell, the adjacent area that can tolerate of Serving cell is lower than Serving cell when switching level bias number, and described level bias number is synchronized to base station controller；
Described base station controller includes:
Level acquisition module, for obtaining the descending level value of Serving cell and adjacent area, selects corresponding level bias number according to the level value that Serving cell is descending；
Judge module, for judge the descending level value in adjacent area and level bias number and whether the level value descending be more than or equal to Serving cell and power back-off and；
Screening module, switches over for screening the adjacent area satisfied condition.
Preferably, described configuration module is used for configuring high level matter difference switching switch, adjacent area level bias number, and described high level matter difference switching switch and adjacent area level bias number are synchronized to base station controller；
Described judge module is additionally operable to judge whether high level matter difference switching switch is opened, if so, then continue to judge the descending level value in adjacent area and level bias number and whether the level value descending be more than or equal to Serving cell and power back-off and.
Preferably, described base station controller also includes:
Handover module, for performing switching flow be more than or equal to Serving cell level for switching condition with adjacent area level；
Whether the adjacent area number that described judge module is additionally operable to switch over is 0, if so, then performs to judge the step whether high level matter difference switching switch is opened.
Preferably, described configuration module is for configuring the level threshold that high level matter difference switching switch, adjacent area level bias number and Serving cell need to meet, and the level threshold that described high level matter difference switching switch, adjacent area level bias number and Serving cell need to meet is synchronized to base station controller；Described judge module is additionally operable to when high level matter difference switching switch is in opening, judge the level threshold whether descending level value of Serving cell need to meet more than Serving cell, if so, then continue to judge the descending level value in adjacent area and level bias number and whether the level value descending be more than or equal to Serving cell and power back-off and.
Preferably, the adjacent area that described screening module is additionally operable to satisfying condition is ranked up.
The present invention is directed to the situation of high level matter difference, by the wireless operation maintenance center difference according to Serving cell communication condition, set different adjacent area level bias, when there is high level matter difference situation, Serving cell switching can be switched to that level is relatively weak but the relatively good adjacent cell of quality, avoid the incision worse community of quality, it is ensured that the accuracy of switching.Therefore, the present invention can reduce cutting off rate index, improves user perceptibility, promotes operator's competitiveness.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of a preferred embodiment of the present invention small area changing method；
Fig. 2 is the schematic flow sheet of a preferred embodiment of the present invention small area changing method；
Fig. 3 is the structural representation of another preferred embodiment small area switched system of the present invention；
Fig. 4 is the structural representation of another embodiment small area of the present invention switched system.
The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.
Detailed description of the invention
Should be appreciated that specific embodiment described herein is only in order to explain the present invention, is not intended to limit the present invention.
The present invention provides a kind of cell switching method, and with reference to Fig. 1, in a preferred embodiment of the present invention, this cell switching method at least comprises the following steps:
Step S10, wireless operation maintenance center according to the communication condition of community configure with the level of Serving cell exist mapping relations, switch time the adjacent area that can tolerate of the Serving cell level bias number lower than Serving cell, and described level bias number is synchronized to base station controller；In the embodiment of the present invention, the wireless operation maintenance center difference according to the communication condition of each community, set different adjacent area level bias numbers.If namely adjacent area level bias number represents Serving cell and to switch the adjacent area that can the tolerate level dB number lower than Serving cell, its be on the occasion of, there are mapping relations with the level of Serving cell.In the present embodiment, can including high level matter difference switching switch GoodLevBadRQHoEnable and adjacent area level bias GoodLevBadRQoffSet [N] at the configuration parameter that wireless operation maintenance center is newly-increased, N is expressed as multiple numerical value.When Serving cell level height, the bias of tolerance is high, and when Serving cell level is low, the bias of tolerance is low, to avoid being switched to the worse community of signal.The following is the illustration of GoodLevBadRQoffSet [5]:
| RxLev(dBm) | GoodLevBadRQoffSet | Acquiescence value |
| >=-60 | [0,63] | 20 |
| -60～-70 | [0,63] | 15 |
| -70～-75 | [0,63] | 10 |
| -75～-85 | [0,63] | 5 |
| <-85 | [0,63] | 0 |
After above-mentioned configuration parameter configures, synchronize to be issued to base station controller BSC.
The level value that step S20, base station controller acquisition Serving cell and adjacent area are descending, selects corresponding level bias number according to the level value that Serving cell is descending；Base station controller obtains according to cell measurement reporting after a series of level average of Serving cell and adjacent area, it is possible to switch over judgement.After the switching of row quality is set up over/under, when the Target cell number that the judgement of original switching flow obtains is 0, it is judged that whether system supports high level matter difference handoff functionality.If supporting, proceed to step S30.When the Target cell number that original flow process obtains not is 0, namely making decisions by existing switching flow, if there is the community that can switch, then illustrating there is the relatively good adjacent area of signal, it is possible to select these communities to switch over, it is not necessary to perform not invention flow process.
Step S30, it is judged that the descending level value in adjacent area and level bias number and whether the level value descending be more than or equal to Serving cell and power back-off and；
Step S40, if so, then screens the adjacent area meeting this condition and switches over.According to the interval corresponding to the descending average level of this Serving cell, select shift value corresponding in the GoodLevBadRQoffSet [5] arranged, judging that whether (adjacent area descending average level+GoodLevBadRQoffSet) be more than or equal to (this cell downlink average level+power back-off), power back-off is: the emitting power grade BSPower*2 of base station.Such as, it is-60 that base station controller obtains the received signal level meansigma methods RxLev (dBm) of Serving cell, biasing interval GoodLevBadRQoffSet corresponding to this numerical value is 0-63, default offset value is 20, then descending for adjacent area average level is compensated computing, plus default offset value 20 in actual mean value, and judge operation result whether be more than or equal to the received signal level meansigma methods-60 of Serving cell and power back-off and, the emitting power grade BSPower that power back-off is base station is multiplied by 2.If so, then judge that adjacent area is as the community meeting switching condition, it is possible to select these communities to switch over.If it is not, then do not switch over, continue to collect measurement report and judge whether adjacent area satisfies condition.
In the embodiment of the present invention, by the wireless operation maintenance center difference according to Serving cell communication condition, set different adjacent area level bias numbers, this level bias number be on the occasion of.When base station controller gets the level value of Serving cell and adjacent area, adjacent area level value is added with this level bias number, obtain the numerical value more than adjacent area actual level value, judge again this numerical value whether be more than or equal to the received signal level meansigma methods-60 of Serving cell and power back-off and, namely judge that whether adjacent area level is higher than Serving cell level using this operation values as basis for estimation, if so, this adjacent area is then selected to switch over.Embodiment of the present invention Serving cell switching when there is high level matter difference situation can be switched to the adjacent cell that level is relatively weak, it is to avoid the incision worse community of quality, it is ensured that the accuracy of switching.Therefore, the present invention can reduce cutting off rate index, improves user perceptibility, promotes operator's competitiveness.
In a preferred embodiment of the present invention, above-mentioned steps S10 includes:
Wireless operation maintenance center configuration high level matter difference switching switch, adjacent area level bias number, and described high level matter difference switching switch and adjacent area level bias number are synchronized to base station controller.The setting of switching switch, it is possible to choose whether to enter switching flow of the present invention for user, for instance, if switching switch is opening, then illustrate that system supports switching flow of the present invention.In the embodiment of the present invention, before performing above-mentioned steps S30, upper method flow may also include the step judging whether high level matter difference switching switch is opened, and if so, then performs step S30.
With reference to, shown in Fig. 2, in another preferred embodiment of the present invention, also including before above-mentioned steps S20:
Step S200, performs switching flow be more than or equal to Serving cell level for switching condition with adjacent area level；Namely switching over by existing switching flow, if there is the community that can switch, then illustrating there is the relatively good adjacent area of signal, it is possible to select these communities to switch over, it is not necessary to perform not invention flow process.
Step S201, it is judged that whether the adjacent area number that can switch over is 0, if so, then performs to judge the step whether high level matter difference switching switch is opened.When switching over by existing procedure, if whether the adjacent area number that judgement can switch over is 0, then illustrate that the signal of adjacent area is all weaker than Serving cell, now, perform the switching flow of the present invention, first determine whether whether high level matter difference switching switch is opened, if so, step S20 is then performed.
Further, in another embodiment of the present invention, above-mentioned steps S10 may also include that
The level threshold that wireless operation maintenance center configuration high level matter difference switching switch, adjacent area level bias number and Serving cell need to meet, and the level threshold that described high level matter difference switching switch, adjacent area level bias number and Serving cell need to meet is synchronized to base station controller.
The present embodiment increases the level threshold parameter that this community need to meet on the basis of previous embodiment, it is to avoid manually arrange GoodLevBadRQoffset parameter unreasonable, has cut the worse community of wireless quality when Serving cell level is low.This parameter and GoodLevBadRQoffset are with the use of controlling switching better effects if, and default value is 30, expression-80dBm.In the embodiment of the present invention, include after performing to judge the high level matter difference switching step whether opened of switch: judge the level threshold whether descending level value of Serving cell need to meet more than Serving cell, if so, then execution step S30.
In previous embodiment, also include the community to satisfying condition and be ranked up, select the step that adjacent area switches over according to the order of sequence, to ensure speech quality further.
The present invention also provides for a kind of cell handover system, is used for realizing said method.Referring to Fig. 3, in a preferred embodiment of the present invention, this cell handover system includes wireless operation maintenance center 10 and base station controller 20, wherein:
Wireless operation maintenance center 10 includes configuration module 11, there is the adjacent area level bias number of mapping relations for the level configured with Serving cell, and described level bias number is synchronized to base station controller；In the embodiment of the present invention, if namely the required level bias met in adjacent area represents Serving cell and to switch the adjacent area that can the tolerate level dB number lower than Serving cell, there are mapping relations with the level of Serving cell.Increasing configuration parameter by configuring module 11 newly at wireless operation maintenance center 10, including high level matter difference switching switch GoodLevBadRQHoEnable and the required level bias GoodLevBadRQoffSet [N] met in adjacent area, N is expressed as multiple numerical value.When Serving cell level height, the bias of tolerance is high, and when level is low, the bias of tolerance is low.
Base station controller 20 includes:
Level acquisition module 21, for obtaining the descending level value of Serving cell and adjacent area, selects corresponding level bias number according to the level value that Serving cell is descending；Level acquisition module 21 can obtain a series of level average according to cell measurement reporting.
Judge module 22, for that judge the descending level value in adjacent area and level bias number and whether descending be more than or equal to Serving cell level value and power back-off and, if so, then screen the adjacent area meeting this condition and switch over.After the switching of row quality is set up over/under, when the Target cell number that original flow process obtains is 0, it is judged that whether system supports high level matter difference handoff functionality.If supporting, the first judge module 22 then judge the descending level value in adjacent area and level bias number and whether the level value descending be more than or equal to Serving cell and power back-off and, if so, then screen the adjacent area meeting this condition and switch over.According to the interval corresponding to the descending average level of this Serving cell, select shift value corresponding in the GoodLevBadRQoffSet [5] arranged, judging that whether (adjacent area descending average level+GoodLevBadRQoffSet) be more than or equal to (this cell downlink average level+power back-off), power back-off is: the emitting power grade BSPower*2 of base station.Such as, it is-60 that base station controller obtains the received signal level meansigma methods RxLev (dBm) of Serving cell, biasing interval GoodLevBadRQoffSet corresponding to this numerical value is 0-63, default offset value is 20, then descending for adjacent area average level is compensated computing, plus deviant 20 in actual mean value, and judge operation result whether be more than or equal to the received signal level meansigma methods-60 of Serving cell and power back-off and, the emitting power grade BSPower that power back-off is base station is multiplied by 2.
Screening module 23, switches over for screening the adjacent area satisfied condition.When the descending level value in adjacent area and level bias number and descending be more than or equal to Serving cell level value and power back-off and time, then adjacent area is the community meeting switching condition, it is possible to select these communities to switch over.If it is not, then do not switch over, continue to collect measurement report and judge whether adjacent area satisfies condition.
In the embodiment of the present invention, by the wireless operation maintenance center 10 difference according to Serving cell communication condition, set different adjacent area level bias numbers, this level bias number be on the occasion of.When base station controller 20 gets the level value of Serving cell and adjacent area, adjacent area level value is added with this level bias number, obtain the numerical value more than adjacent area actual level value, judge again this numerical value whether be more than or equal to the received signal level meansigma methods-60 of Serving cell and power back-off and, namely judge that whether adjacent area level is higher than Serving cell level using this operation values as basis for estimation, if so, this adjacent area is then selected to switch over.Embodiment of the present invention Serving cell switching when there is high level matter difference situation can be switched to the adjacent cell that level is relatively weak, it is to avoid the incision worse community of quality, it is ensured that the accuracy of switching.Therefore, the present invention can reduce cutting off rate index, improves user perceptibility, promotes operator's competitiveness.
In a preferred embodiment of the present invention, configuration module 11 is used for configuring high level matter difference switching switch, adjacent area level bias number, and described high level matter difference switching switch and adjacent area level bias number are synchronized to base station controller 20.The setting of switching switch, it is possible to choose whether to enter switching flow of the present invention for user, for instance, if switching switch is opening, then illustrate that system supports switching flow of the present invention.In the embodiment of the present invention, it is judged that module 22 is additionally operable to judge whether high level matter difference switching switch is opened, if so, then continue to judge the descending level value in adjacent area and level bias number and whether the level value descending be more than or equal to Serving cell and power back-off and.
With reference to Fig. 4, in one embodiment of the invention, base station controller 20 also includes:
Handover module 24, for performing switching flow be more than or equal to Serving cell level for switching condition with adjacent area level；Namely handover module 24 makes decisions by existing switching flow, if there is the community that can switch, then illustrates there is the relatively good adjacent area of signal, it is possible to select these communities to switch over, it is not necessary to perform not invention flow process.
Whether the adjacent area number that judge module 22 is additionally operable to switch over is 0, if so, then performs to judge whether high level matter difference switching switch is opened.When switching over by existing procedure, if whether the adjacent area number that judgement can switch over is 0, if so, then illustrate that the signal of adjacent area is all weaker than Serving cell, now, perform the switching flow of the present invention, first determine whether whether high level matter difference switching switch is opened.
In a preferred embodiment of the present invention, described configuration module 11 is for configuring the level threshold that high level matter difference switching switch, adjacent area level bias number and Serving cell need to meet, and the level threshold that described high level matter difference switching switch, adjacent area level bias number and Serving cell need to meet is synchronized to base station controller.The present embodiment increases the level threshold parameter that this community need to meet on the basis of previous embodiment, it is to avoid manually arrange GoodLevBadRQoffset parameter unreasonable, has cut the worse community of wireless quality when Serving cell level is low.This parameter and GoodLevBadRQoffset are with the use of controlling switching better effects if, and default value is 30, expression-80dBm.In the embodiment of the present invention, judge module 22 is additionally operable to when being in opening at high level matter difference switching switch, judge the level threshold whether descending level value of Serving cell need to meet more than Serving cell, if so, then judge the descending level value in adjacent area and level bias number and whether the level value descending be more than or equal to Serving cell and power back-off and.
In previous embodiment, the community that screening module 23 is additionally operable to satisfying condition is ranked up, and selects adjacent area to switch over according to the order of sequence, to ensure speech quality further.
These are only the preferred embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every equivalent structure utilizing description of the present invention and accompanying drawing content to make or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical fields, all in like manner include in the scope of patent protection of the present invention.
Claims (10)
1. a cell switching method, it is characterised in that comprise the following steps:
Wireless operation maintenance center according to the communication condition of community configure with the level of Serving cell exist mapping relations, switch time the adjacent area that can tolerate of the Serving cell level bias number lower than Serving cell, and described level bias number is synchronized to base station controller；
Base station controller obtains the descending level value of Serving cell and adjacent area, selects corresponding level bias number according to the level value that Serving cell is descending；
Judge the descending level value in adjacent area and level bias number and whether descending be more than or equal to Serving cell level value and power back-off and, if so, then screen the adjacent area meeting this condition and switch over.
2. cell switching method as claimed in claim 1, it is characterized in that, described wireless operation maintenance center according to the communication condition of community configure with the level of Serving cell exist mapping relations, switch time the adjacent area that can tolerate of the Serving cell level bias number lower than Serving cell, and the step that described level bias number is synchronized to base station controller is included:
Wireless operation maintenance center configuration high level matter difference switching switch and adjacent area level bias number, and described high level matter difference switching switch and adjacent area level bias number are synchronized to base station controller；
Described base station controller obtains the descending level value of Serving cell and adjacent area, includes select the step of corresponding level bias number according to the level value that Serving cell is descending after:
Judge whether high level matter difference switching switch is opened, if so, then perform to judge the descending level value in adjacent area and level bias number and whether the level value descending be more than or equal to Serving cell and power back-off and step.
3. cell switching method as claimed in claim 2, it is characterised in that included before performing to judge the step whether high level matter difference switching switch is opened:
Switching flow is performed be more than or equal to Serving cell level for switching condition with adjacent area level；
Whether the adjacent area number that judgement can switch over is 0, if so, then performs to judge the step whether high level matter difference switching switch is opened.
4. cell switching method as claimed in claim 2 or claim 3, it is characterized in that, described wireless operation maintenance center according to the communication condition of community configure with the level of Serving cell exist mapping relations, switch time the adjacent area that can tolerate of the Serving cell level bias number lower than Serving cell, and the step that described level bias number is synchronized to base station controller is included:
The level threshold that wireless operation maintenance center configuration high level matter difference switching switch, adjacent area level bias number and Serving cell need to meet, and the level threshold that described high level matter difference switching switch, adjacent area level bias number and Serving cell need to meet is synchronized to base station controller；
Include after performing to judge the step whether high level matter difference switching switch is opened:
Judge the level threshold whether descending level value of Serving cell need to meet more than Serving cell, if so, then perform to judge the descending level value in adjacent area and level bias number and whether the level value descending be more than or equal to Serving cell and power back-off and step.
5. the cell switching method as according to any one of Claims 1-4, it is characterised in that further comprising the steps of:
The adjacent area satisfied condition is ranked up.
6. a cell handover system, it is characterised in that include wireless operation maintenance center and base station controller, wherein:
Wireless operation maintenance center includes configuration module, configure for the communication condition according to community and there are mapping relations in the level of Serving cell, the adjacent area that can tolerate of Serving cell is lower than Serving cell when switching level bias number, and described level bias number is synchronized to base station controller；
Described base station controller includes:
Level acquisition module, for obtaining the descending level value of Serving cell and adjacent area, selects corresponding level bias number according to the level value that Serving cell is descending；
Judge module, for judge the descending level value in adjacent area and level bias number and whether the level value descending be more than or equal to Serving cell and power back-off and；
Screening module, switches over for screening the adjacent area satisfied condition.
7. cell handover system as claimed in claim 6, it is characterised in that described configuration module is used for configuring high level matter difference switching switch, adjacent area level bias number, and described high level matter difference switching switch and adjacent area level bias number are synchronized to base station controller；
Described judge module is additionally operable to judge whether high level matter difference switching switch is opened, if so, then continue to judge the descending level value in adjacent area and level bias number and whether the level value descending be more than or equal to Serving cell and power back-off and.
8. cell handover system as claimed in claim 7, it is characterised in that described base station controller also includes:
Handover module, for performing switching flow be more than or equal to Serving cell level for switching condition with adjacent area level；
Whether the adjacent area number that described judge module is additionally operable to switch over is 0, if so, then performs to judge whether high level matter difference switching switch is opened.
9. cell handover system as claimed in claim 8, it is characterized in that, described configuration module is for configuring the level threshold that high level matter difference switching switch, adjacent area level bias number and Serving cell need to meet, and the level threshold that described high level matter difference switching switch, adjacent area level bias number and Serving cell need to meet is synchronized to base station controller；Described judge module is additionally operable to when high level matter difference switching switch is in opening, judge the level threshold whether descending level value of Serving cell need to meet more than Serving cell, if so, then continue to judge the descending level value in adjacent area and level bias number and whether the level value descending be more than or equal to Serving cell and power back-off and.
10. the cell handover system as according to any one of claim 6 to 9, it is characterised in that the adjacent area that described screening module is additionally operable to satisfying condition is ranked up.
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| CN201410743123.4A CN105744573B (en) | 2014-12-08 | 2014-12-08 | Cell switching method and system |
| PCT/CN2015/079935 WO2016090856A1 (en) | 2014-12-08 | 2015-05-27 | Cell handover method and system |
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| CN201410743123.4A CN105744573B (en) | 2014-12-08 | 2014-12-08 | Cell switching method and system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN113228747A (en) * | 2018-12-28 | 2021-08-06 | 华为技术有限公司 | Communication method and communication device |
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| CN111278039B (en) * | 2018-12-05 | 2022-12-06 | ***通信集团四川有限公司 | User perception suppression identification method, device, equipment and medium |
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| WO2012022800A1 (en) * | 2010-08-20 | 2012-02-23 | Ip.Access Limited | Network element, cellular communication system and method therefor |
| CN102421153A (en) * | 2011-11-21 | 2012-04-18 | 北京邮电大学 | Method for selecting cell by multi-mode wireless terminal |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106211233A (en) * | 2016-07-14 | 2016-12-07 | 西安汇龙科技股份有限公司 | The location method of terminal use's movement locus, Apparatus and system |
| CN113228747A (en) * | 2018-12-28 | 2021-08-06 | 华为技术有限公司 | Communication method and communication device |
| CN113228747B (en) * | 2018-12-28 | 2022-05-13 | 华为技术有限公司 | Communication method and communication device |
| US11902915B2 (en) | 2018-12-28 | 2024-02-13 | Huawei Technologies Co., Ltd. | Communication method and communications apparatus |
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| CN105744573B (en) | 2019-02-26 |
| WO2016090856A1 (en) | 2016-06-16 |
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